tag:blogger.com,1999:blog-4099017467558459662024-03-19T00:39:43.803-07:00 ELECTROLABEmbcircuithttp://www.blogger.com/profile/08741264801394262164noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-409901746755845966.post-47166888536038069942013-10-25T03:08:00.000-07:002013-10-29T16:09:11.841-07:00My stencil CNC cutter<div class="MsoNormal">
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<b><u><span lang="EN-US" style="font-size: 20.0pt; line-height: 115%; mso-ansi-language: EN-US;">My stencil
CNC cutter<o:p></o:p></span></u></b></div>
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<b><u><span lang="EN-US">Part one : Laser driver<o:p></o:p></span></u></b></div>
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<b><u><span lang="EN-US">Regulate current: <o:p></o:p></span></u></b></div>
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<span lang="EN-US"><br />
The current supplied by the battery is rather stable, but in most cases, is too
much to drive a laser diode. For instance, a DVD-burner laser diode would need
about 200-250mA of power at about 2.5-3 volts(for any long life span to actually
be expected of the diode). Laser diodes are, unfortunately, a very light load
when wired directly to a battery, and an alkaline battery would easily put out
about 500mA or more, and lithiums put out 2 or 3 times that much! This too is
an instant death situation for our beloved laser diode. Although very
simplistic, it is not that common to find a flashlight with the right current
regulation, and most of us would like to be able to control the current supply
by using a potentiometer.<br />
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Current regulation is the tricky part of this circuit. The chip that I like
most for current regulation is the LM317. The chip can be used as a voltage
regulator and as a current regulator. This guide will use a capacitor as a
voltage regulator since the battery's voltage is, for the most part, already
regulated and stable, while all we need to do is limit the current that we let
flow into the diode.<o:p></o:p></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5hm6sCeglTCf3jGZR2CzgDfGXdEWtYeCL1bJW7Kyti4AeY1kXMRn07bSIyxgovUyauY-F5cf04nZI17vhyphenhyphenMfvhy5ZVC1EluBgqJ9rHxNRlgpA_C1-5U44nH-aDJOGhidO6yQN1AryDg_Q/s1600/P-CAD+EDA+-+%5BB%5D.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5hm6sCeglTCf3jGZR2CzgDfGXdEWtYeCL1bJW7Kyti4AeY1kXMRn07bSIyxgovUyauY-F5cf04nZI17vhyphenhyphenMfvhy5ZVC1EluBgqJ9rHxNRlgpA_C1-5U44nH-aDJOGhidO6yQN1AryDg_Q/s320/P-CAD+EDA+-+%5BB%5D.jpg" height="119" width="320" /></a></div>
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<b><u><span lang="EN-US">Laser diod:<o:p></o:p></span></u></b></div>
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What you will find in different drives:<br />
- In a DVD-RW there are 2 burning diodes: Red for DVD and infraref
for CD.<br />
- Weak red lasers 1mW from DVD-ROM (read-only drives) are suitable
only for a small laser pointer or poor laser show, they won't burn anything.<br />
- V combos CD-RW/DVD-ROM (burning CD and read DVD...today a
hangover), there's a burning infrared dide and weak red diode (as in DVD-ROM)<br />
- And finally, the lasers from CD-ROM are absolutely useless. I
mention this list so I avoid stupid questions whether the diode from a CD-ROM
will burn. </div>
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<b><span style="color: red;">Warning! Laser diodes from DVD-RW drive are emitting visible
and invisible laser radiation and they are extremely dangerous! Their light can
permanently damage the eyes. You must never look into the working diode even
without the lens or point it on a reflective surface. Laser beam can cause
burns or fire. This is usually a Class IIIb laser. Everything you do at your
own risk.<o:p></o:p></span></b></div>
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Schematic of current power supply for double laser from
DVD-RW burner drive with switch for selecting operation mode (RED - INFRARED -
BOTH). The resistor determines the output current to the laser diodes using the
formula I = 1.25 / R. LM317 needs a heatsink. The voltage drop of infrared
laser diode is 2.15 V and the voltage drop of red one is 2.5 V. </div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg_xMy8ipvxFzHDklNSCtjzBxfuEJRay0nwfCjb55sbU07PB8XLYCV24QAL8ek_2xR-YnA4d8owKxty2KwMU5aOdePjNJjntqqMU9kH72Co8n8SwUj3ASkI9y-jxpIybhyphenhyphenz1iHuKLh9o9QL/s1600/laser322.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg_xMy8ipvxFzHDklNSCtjzBxfuEJRay0nwfCjb55sbU07PB8XLYCV24QAL8ek_2xR-YnA4d8owKxty2KwMU5aOdePjNJjntqqMU9kH72Co8n8SwUj3ASkI9y-jxpIybhyphenhyphenz1iHuKLh9o9QL/s320/laser322.jpg" height="240" width="320" /></a></div>
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250mW open can laser diode </div>
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...to be continued</div>
Embcircuithttp://www.blogger.com/profile/08741264801394262164noreply@blogger.com2tag:blogger.com,1999:blog-409901746755845966.post-64571281482917544632013-10-24T08:56:00.000-07:002013-10-25T18:59:10.083-07:00Electronic components free sample<div class="MsoNormal">
This list is currently being updated it will include
"straight" suppliers as well as those that do have samples of their
products available.<br />
as the companies listed here do change their policies , some may no longer have
samples available </div>
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<span style="font-family: "Calibri","sans-serif";"><span style="font-size: 11pt; line-height: 115%;">Marktech | <a href="http://26fba2b3.megaline.co/">http://26fba2b3.megaline.co</a></span><span style="font-size: 11pt; line-height: 115%;"> | Led and related</span><br /><span style="font-size: 11pt; line-height: 115%;">
TI | </span><a href="http://www.ti.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.ti.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Maxim | </span><a href="http://www.maxim-ic.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.maxim-ic.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Analog Devices | </span><a href="http://www.analog.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.analog.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Avago Technologies: </span><a href="http://www.avagotech.com/pages/home/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.avagotech.com/pages/home/</a><br /><span style="font-size: 11pt; line-height: 115%;">
Microchip | </span><a href="http://www.microchip.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.microchip.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Atmel | </span><a href="http://www.atmel.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.atmel.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Microcontroller</span><br /><span style="font-size: 11pt; line-height: 115%;">
Intersil | </span><a href="http://www.intersil.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.intersil.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Agilent Technologies: </span><a href="http://www.home.agilent.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.home.agilent.com</a><br /><span style="font-size: 11pt; line-height: 115%;">
AVX: </span><a href="http://www.avx.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.avx.com/</a><br /><span style="font-size: 11pt; line-height: 115%;">
Fairchild | </span><a href="http://www.fairchildsemi.com/samples/index.jsp" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.fairchildsemi.com/samples/index.jsp</a><span style="font-size: 11pt; line-height: 115%;"> | Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Infenion | </span><a href="http://www.infineon.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.infineon.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Microsemi </span><a href="http://www.microsemi.com/store/request.asp...E=SAMPLE&MN=280" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.microsemi.com/store/request.asp...E=SAMPLE&MN=280</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Ramton | </span><a href="http://www.ramtron.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.ramtron.com/</a><span style="font-size: 11pt; line-height: 115%;"> |
Memory</span><br /><span style="font-size: 11pt; line-height: 115%;">
Exar Corporation: </span><a href="http://www.exar.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.exar.com/</a><br /><span style="font-size: 11pt; line-height: 115%;">
Laird Technologies: </span><a href="http://www.lairdtech.com/Products/EMI-Solu...rrite-Products/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.lairdtech.com/Products/EMI-Solu...rrite-Products/</a><br /><span style="font-size: 11pt; line-height: 115%;">
On Semiconductor | </span><a href="http://www.onsemi.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.onsemi.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Supertex | </span><a href="http://www.supertex.com/contact_form/sample_request" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.supertex.com/contact_form/sample_request</a><span style="font-size: 11pt; line-height: 115%;"> |
Power Devices</span><br /><span style="font-size: 11pt; line-height: 115%;">
IXYS Semiconductor: </span><a href="http://www.ixysic.com/index/index.htm" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.ixysic.com/index/index.htm</a><br /><span style="font-size: 11pt; line-height: 115%;">
Zilog | </span><a href="http://www.zilog.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.zilog.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Coilcraft | </span><a href="http://www.coilcraft.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.coilcraft.com/</a><span style="font-size: 11pt; line-height: 115%;"> |
Inductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Hittie | </span><a href="http://www.hittite.com/index.cfm" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.hittite.com/index.cfm</a><span style="font-size: 11pt; line-height: 115%;"> |
Microwave</span><br /><span style="font-size: 11pt; line-height: 115%;">
FTDIchips | </span><a href="http://www.ftdichip.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.FTDIchip.com</a><span style="font-size: 11pt; line-height: 115%;"> |
USB</span><br /><span style="font-size: 11pt; line-height: 115%;">
AllegroMicro | </span><a href="http://www.allegromicro.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.allegromicro.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Sensors</span><br /><span style="font-size: 11pt; line-height: 115%;">
Linear Technology | </span><a href="http://www.linear.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.linear.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
CML Micro | </span><a href="http://www.cmlmicro.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.cmlmicro.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Wireless communication</span><br /><span style="font-size: 11pt; line-height: 115%;">
Holtek | </span><a href="http://www.holtek.com/english/contact/contact.htm" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.holtek.com/english/contact/contact.htm</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor Need to be contacted</span><br /><span style="font-size: 11pt; line-height: 115%;">
System General | </span><a href="http://www.sg.com.tw/semiGP/sample_E.asp" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.sg.com.tw/semiGP/sample_E.asp</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Bivar </span><a href="http://www.bivar.com/l" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.bivar.com/l</a><span style="font-size: 11pt; line-height: 115%;"> |
PCB Packaging and LED Assemblies</span><br /><span style="font-size: 11pt; line-height: 115%;">
SunLED | </span><a href="http://www.sunled.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.sunled.com</a><span style="font-size: 11pt; line-height: 115%;"> |
LED and Displays</span><br /><span style="font-size: 11pt; line-height: 115%;">
AboveBoard Electronics | </span><a href="http://www.aboveboardelectronics.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.aboveboardelectronics.com</a><span style="font-size: 11pt; line-height: 115%;"> | Tools</span><br /><span style="font-size: 11pt; line-height: 115%;">
MillMax | </span><a href="http://www.mill-max.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.mill-max.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Interconnects and IC sockets</span><br /><span style="font-size: 11pt; line-height: 115%;">
Meritekusa | </span><a href="http://www.meritekusa.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.meritekusa.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Passive Components</span><br /><span style="font-size: 11pt; line-height: 115%;">
Murata Manufacturing: </span><a href="http://www.murata.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.murata.com/</a><br /><span style="font-size: 11pt; line-height: 115%;">
Molex | </span><a href="http://www.molex.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.molex.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Connectors</span><br /><span style="font-size: 11pt; line-height: 115%;">
Kycon | </span><a href="http://www.kycon.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.kycon.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Connectors</span><br /><span style="font-size: 11pt; line-height: 115%;">
Azmicrotek | </span><a href="http://www.azmicrotek.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.azmicrotek.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Logic Translator</span><br /><span style="font-size: 11pt; line-height: 115%;">
Astrorep | </span><a href="http://www.astrorep.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.astrorep.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Supplier</span><br /><span style="font-size: 11pt; line-height: 115%;">
FMG Elecronics | </span><a href="http://www.fmgelectronics.ie/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.fmgelectronics.ie</a><span style="font-size: 11pt; line-height: 115%;"> |
Supplier</span><br /><span style="font-size: 11pt; line-height: 115%;">
Electec | </span><a href="http://www.electec.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.electec.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Supplier</span><br /><span style="font-size: 11pt; line-height: 115%;">
Avnet | </span><a href="http://www.avnet.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.avnet.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Supplier</span><br /><span style="font-size: 11pt; line-height: 115%;">
E-Switch: </span><a href="http://www.e-switch.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.e-switch.com/</a><br /><span style="font-size: 11pt; line-height: 115%;">
Promor | </span><a href="http://www.promor.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.promor.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Supplier</span><br /><span style="font-size: 11pt; line-height: 115%;">
Central Semiconductors | </span><a href="http://www.centralsemi.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.centralsemi.com</a><span style="font-size: 11pt; line-height: 115%;"> | Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
LittleFuse | </span><a href="http://www.littelfuse.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.littelfuse.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Power Devices and Fuses</span><br /><span style="font-size: 11pt; line-height: 115%;">
Foxonline | </span><a href="http://www.foxonline.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.foxonline.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Crystals and Oscillators</span><br /><span style="font-size: 11pt; line-height: 115%;">
Semtech | </span><a href="http://www.semtech.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.semtech.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Power Devices</span><br /><span style="font-size: 11pt; line-height: 115%;">
OKW | </span><a href="http://www.okw.co.uk/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.okw.co.uk</a><span style="font-size: 11pt; line-height: 115%;"> |
Enclosures and Knobs</span><br /><span style="font-size: 11pt; line-height: 115%;">
SMD INC. | </span><a href="http://www.smdinc.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.smdinc.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Supplier</span><br /><span style="font-size: 11pt; line-height: 115%;">
Heyco | </span><a href="http://www.heyco.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.heyco.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Grips and holders</span><br /><span style="font-size: 11pt; line-height: 115%;">
Teknational | </span><a href="http://www.teknational.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.teknational.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Thermal Insulation and hardware</span><br /><span style="font-size: 11pt; line-height: 115%;">
FCI Connect | </span><a href="http://www.fciconnect.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.fciconnect.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Connectors</span><br /><span style="font-size: 11pt; line-height: 115%;">
Bridge Port | </span><a href="http://www.bptfittings.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.bptfittings.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Fittings</span><br /><span style="font-size: 11pt; line-height: 115%;">
Pericom | </span><a href="http://www.pericom.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.pericom.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Elesta | </span><a href="http://www.elestarelays.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.elestarelays.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Relays</span><br /><span style="font-size: 11pt; line-height: 115%;">
Pacentec | </span><a href="http://www.pactecenclosures.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.pactecenclosures.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Enclosures</span><br /><span style="font-size: 11pt; line-height: 115%;">
Sensitron | </span><a href="http://www.sensitron.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.sensitron.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Arrays, Semiconductors, LEDs</span><br /><span style="font-size: 11pt; line-height: 115%;">
Bergquist | </span><a href="http://www.bergquistcompany.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.bergquistcompany.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Thermal related products</span><br /><span style="font-size: 11pt; line-height: 115%;">
Cooperet | </span><a href="http://www.cooperet.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.cooperet.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Magnetics and protection</span><br /><span style="font-size: 11pt; line-height: 115%;">
NorthWest Components | </span><a href="http://www.northwestcomponents.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.northwestcomponents.com</a><span style="font-size: 11pt; line-height: 115%;"> | Passive and
Diodes</span><br /><span style="font-size: 11pt; line-height: 115%;">
EM Microelectronics | </span><a href="http://www.emmarin.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.emmarin.com</a><span style="font-size: 11pt; line-height: 115%;"> |
RFID</span><br /><span style="font-size: 11pt; line-height: 115%;">
ERG | </span><a href="http://www.ergpower.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.ergpower.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Display related</span><br /><span style="font-size: 11pt; line-height: 115%;">
ON Shore | </span><a href="http://www.on-shore.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.on-shore.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Terminal Blocks and connectors</span><br /><span style="font-size: 11pt; line-height: 115%;">
AAVID Thermal Alloy | </span><a href="http://www.aavidthermalloy.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.aavidthermalloy.com</a><span style="font-size: 11pt; line-height: 115%;"> | Sample Kits</span><br /><span style="font-size: 11pt; line-height: 115%;">
Epcos | </span><a href="http://www.epcos.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.epcos.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Passive Components</span><br /><span style="font-size: 11pt; line-height: 115%;">
Fordata | </span><a href="http://www.fordata.cn/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.fordata.cn</a><span style="font-size: 11pt; line-height: 115%;"> |
LCD</span><br /><span style="font-size: 11pt; line-height: 115%;">
TriQuint: </span><a href="http://www.triquint.com/prodserv/search/ac...cfm?PT=8&DPN=WJ" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.triquint.com/prodserv/search/ac...cfm?PT=8&DPN=WJ</a><br /><span style="font-size: 11pt; line-height: 115%;">
NJR | </span><a href="http://www.njr.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.njr.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
Wurth Elektronix | </span><a href="http://www.we-online.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.we-online.com</a><span style="font-size: 11pt; line-height: 115%;"> |
PCB, EMI, EMC, Connectors</span><br /><span style="font-size: 11pt; line-height: 115%;">
Spectra Symbol | </span><a href="http://www.spectrasymbol.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.spectrasymbol.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Flex Sensors</span><br /><span style="font-size: 11pt; line-height: 115%;">
Cirrus Logic | </span><a href="http://www.cirrus.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.cirrus.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Digital chips, D/A converters, Ethernet controllers, audio/video decoders…</span><br /><span style="font-size: 11pt; line-height: 115%;">
FreeScale | </span><a href="http://www.freescale.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.freescale.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Semiconductor</span><br /><span style="font-size: 11pt; line-height: 115%;">
TE Connectivity: </span><a href="http://www.te.com/en/home.html" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.te.com/en/home.html</a><br /><span style="font-size: 11pt; line-height: 115%;">
ITW/Fastex | </span><a href="http://www.itw-fastex.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.itw-fastex.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Connectors and Clips</span><br /><span style="font-size: 11pt; line-height: 115%;">
Micrometals | </span><a href="http://www.micrometals.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.micrometals.com</a><span style="font-size: 11pt; line-height: 115%;">
| Toroids</span><br /><span style="font-size: 11pt; line-height: 115%;">
Marktech | </span><a href="http://www.marktechopto.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.marktechopto.com</a><span style="font-size: 11pt; line-height: 115%;"> |
Led and related</span><br /><span style="font-size: 11pt; line-height: 115%;">
New Age Enclosures | </span><a href="http://www.newageenclosures.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.newageenclosures.com</a><span style="font-size: 11pt; line-height: 115%;"> | Enclosures</span><br /><span style="font-size: 11pt; line-height: 115%;">
STMicroelectronics | </span><a href="http://www.st.com/web/en/home.html" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.st.com/web/en/home.html</a><span style="font-size: 11pt; line-height: 115%;"> | Integrated
Circuits</span><br /><span style="font-size: 11pt; line-height: 115%;">
Manncorp | </span><a href="http://www.smtsolderpaste.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.smtsolderpaste.com/</a><span style="font-size: 11pt; line-height: 115%;"> |
SMT Solder Paste</span><br /><span style="font-size: 11pt; line-height: 115%;">
Screenkeys | </span><a href="http://www.screenkeys.com/" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.screenkeys.com/</a><span style="font-size: 11pt; line-height: 115%;"> |
LCD Screen Switches</span><br /><span style="font-size: 11pt; line-height: 115%;">
Keystone | </span><a href="http://www.keyelco.com/contact.asp" style="font-size: 11pt; line-height: 115%;" target="_blank">http://www.keyelco.com/contact.asp</a><span style="font-size: 11pt; line-height: 115%;"> |
Hardware and Accessories</span><br />
<!--[if !supportLineBreakNewLine]--><br />
<!--[endif]--></span>Embcircuithttp://www.blogger.com/profile/08741264801394262164noreply@blogger.com0tag:blogger.com,1999:blog-409901746755845966.post-36594458873013867262013-10-19T03:06:00.000-07:002013-10-19T03:06:20.031-07:00DSB HQ-230 LAMINATOR MODIFICATION<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmkM1TM9iiv9rW1y0OlU_wtiZVDjv4GSZs55716Y6w-MLwO4e_ncMePh0AhaWSfolnGrgWxLzRPGPeQ5KtgPRjXGEQw31vv8oAZVYkYB8z_YRaOz9vHrlZ32X3tYjBEVjUdjyXV9znDqWi/s1600/DSCF0039.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmkM1TM9iiv9rW1y0OlU_wtiZVDjv4GSZs55716Y6w-MLwO4e_ncMePh0AhaWSfolnGrgWxLzRPGPeQ5KtgPRjXGEQw31vv8oAZVYkYB8z_YRaOz9vHrlZ32X3tYjBEVjUdjyXV9znDqWi/s320/DSCF0039.JPG" width="320" /></a></div>
<br />
<div class="MsoNormal">
<b><u><span lang="EN-US" style="color: #333333; font-family: "Arial","sans-serif"; font-size: 10.0pt; line-height: 115%; mso-ansi-language: EN-US; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: FR;">DSB HQ-230 descript</span></u></b><b><u>ion :<o:p></o:p></u></b></div>
<div class="MsoNormal" style="margin-bottom: 6pt;">
<span lang="EN-US" style="color: #333333; font-family: "Arial","sans-serif"; font-size: 10.0pt; mso-ansi-language: EN-US; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: FR;">The</span><b><span lang="EN-US" style="color: #333333; font-family: "Arial","sans-serif"; font-size: 10.0pt; mso-ansi-language: EN-US; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: FR;">DSB HQ-230 </span></b><span lang="EN-US" style="color: #333333; font-family: "Arial","sans-serif"; font-size: 10.0pt; mso-ansi-language: EN-US; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: FR;">is a high quality, low cost A4 Photo Laminator with an internationally
patented folded tray design, and carrying handle that is perfect for Small or
Home Office use, and for transporting to wherever the job may require it.<o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 6pt;">
<span lang="EN-US" style="color: #333333; font-family: "Arial","sans-serif"; font-size: 10.0pt; mso-ansi-language: EN-US; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: FR;">This hot or cold lamination system can laminate at a speed of 300 mm per
minute any document up to A4 in size up to a total thickness of 250 microns
(2x125mic) plus the document being laminated up to 0.4mm.<o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 6pt;">
<span lang="EN-US" style="color: #333333; font-family: "Arial","sans-serif"; font-size: 10.0pt; mso-ansi-language: EN-US; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: FR;">Features for the</span><b><span lang="EN-US" style="color: #333333; font-family: "Arial","sans-serif"; font-size: 10.0pt; mso-ansi-language: EN-US; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: FR;">HQ-230</span></b><span lang="EN-US" style="color: #333333; font-family: "Arial","sans-serif"; font-size: 10.0pt; mso-ansi-language: EN-US; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: FR;">include a paper support for the laminated document,
and a handy release switch that can be used to release any jams that might
occur. The HQ 230 has 2 Rollers and a Temperature Control Dial to setup required
temp (0°C, 80°C, 100°C and 125°C).<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-US" style="font-family: Arial, sans-serif; font-size: 10pt; line-height: 115%;">For use in PCB
transfer method the </span><span lang="EN-US" style="color: #333333; font-family: "Arial","sans-serif"; font-size: 10.0pt; line-height: 115%; mso-ansi-language: EN-US; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: FR;">125°C is not sufficient
to drop toner to fusion point witch is 180°C. </span><span lang="EN-US"><o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-US" style="color: #333333; font-family: "Arial","sans-serif"; font-size: 10.0pt; line-height: 115%; mso-ansi-language: EN-US; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: FR;"><br /></span></div>
<div class="MsoNormal">
<b><u><span lang="EN-US">Modification:<o:p></o:p></span></u></b></div>
<div class="MsoListParagraphCxSpFirst" style="mso-list: l0 level1 lfo1; text-indent: -18.0pt;">
<!--[if !supportLists]--><span lang="EN-US">1 -<span style="font-size: 7pt;">
</span></span><!--[endif]--><span lang="EN-US">Disassembling the unite and get the PCB<o:p></o:p></span></div>
<div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -18.0pt;">
<!--[if !supportLists]--><span lang="EN-US">2 -<span style="font-size: 7pt;">
</span></span><!--[endif]--><span lang="EN-US">With your soldering iron remove the resistor 2.7K
(as shown in photo) and replace it with 1K.<o:p></o:p></span></div>
<div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -18.0pt;">
<span lang="EN-US"><br /></span></div>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8p5w5B99WUKVRnTssGq9-awv5mrO4lMgcS1BayFjOdkouIiRIHFyPtB-9a-zr5XVm7eDjEfmvMWv334XQl1TXpH3R7objb3yhcJHam9z_-4TvjbIz7eh6VDLjipKGjfwDTFx7dB8f6YAo/s1600/DSCF0035.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8p5w5B99WUKVRnTssGq9-awv5mrO4lMgcS1BayFjOdkouIiRIHFyPtB-9a-zr5XVm7eDjEfmvMWv334XQl1TXpH3R7objb3yhcJHam9z_-4TvjbIz7eh6VDLjipKGjfwDTFx7dB8f6YAo/s320/DSCF0035.JPG" width="320" /></a></div>
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<span lang="EN-US"><br /></span></div>
<div class="MsoNormal" style="margin-left: 18.0pt;">
<span lang="EN-US"><br /></span></div>
<div class="MsoNormal" style="margin-left: 18.0pt;">
<span lang="EN-US">Voila your
laminator is ready. When </span><span lang="EN-US" style="color: #333333; font-family: "Arial","sans-serif"; font-size: 10.0pt; line-height: 115%; mso-ansi-language: EN-US; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: FR;">Control Dial is
in 125°C you</span><span lang="EN-US"> get a 178°C.<o:p></o:p></span></div>
<div class="MsoNormal" style="margin-left: 18.0pt;">
<br /></div>
<div class="MsoNormal" style="margin-left: 18.0pt;">
My first circuit (PICKIT2)!!!</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJYo_7BLVVzbkHIjxe7ETq33DQ9NlJi7OX61LA_bJddKBN9PnzRvdX89aKUmFEjLF_wKqSzMTHWQJ_c6_xgMZ9eL1AW86o7D-HJj28G0m-jI83E-SOtAfQq40T1IljmGhIhI3Qgzke85pt/s1600/DSCF0053.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJYo_7BLVVzbkHIjxe7ETq33DQ9NlJi7OX61LA_bJddKBN9PnzRvdX89aKUmFEjLF_wKqSzMTHWQJ_c6_xgMZ9eL1AW86o7D-HJj28G0m-jI83E-SOtAfQq40T1IljmGhIhI3Qgzke85pt/s320/DSCF0053.JPG" width="217" /></a></div>
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Embcircuithttp://www.blogger.com/profile/08741264801394262164noreply@blogger.com0tag:blogger.com,1999:blog-409901746755845966.post-52494267649890929892013-10-18T17:40:00.001-07:002013-10-18T18:18:09.215-07:00<span style="color: #222222; font-family: Helvetica, arial, sans-serif;"><span style="font-size: 20px; line-height: 62px;"><b>HOW TO BUILD A CIRCUIT BOARD FROM A TO Z:</b></span></span><br />
<div class="separator" style="clear: both; text-align: center;">
<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.youtube.com/embed/bk6WJpGyc4I?feature=player_embedded' frameborder='0'></iframe><span style="color: #222222; font-family: Helvetica, arial, sans-serif;"><span style="font-size: 20px; line-height: 62px;"><b></b></span></span></div>
<span style="color: #222222; font-family: Helvetica, arial, sans-serif;"><span style="font-size: 20px; line-height: 62px;"><b>
</b></span></span>
<div class="section_text" id="steps" style="background-color: #f6f5f4; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: none; color: #545454; font-family: Helvetica, arial, sans-serif; font-size: 16px; line-height: 25px; margin: 0px; padding: 0px;">
<ol class="steps_list_2" style="margin: 0px; padding: 0px 0px 16px;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPRlZOHhjWSNE0BMVCQPtQhnGPv9EDy6MEoro4E6wloSv7QyVtJjuHfcYAfPvJJd-OLU4_A3oqPxWzoTE_79B57NAgYK35jAGa3Tm40I-7eBBWShw7OSPb0ZQxlkbpow-jDmuvTigSUIdS/s1600/FUKNZU3GS3BCJTX.LARGE.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" height="150" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPRlZOHhjWSNE0BMVCQPtQhnGPv9EDy6MEoro4E6wloSv7QyVtJjuHfcYAfPvJJd-OLU4_A3oqPxWzoTE_79B57NAgYK35jAGa3Tm40I-7eBBWShw7OSPb0ZQxlkbpow-jDmuvTigSUIdS/s200/FUKNZU3GS3BCJTX.LARGE.jpg" width="200" /></a>
<li style="-webkit-font-smoothing: antialiased; background-color: white; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: 1px solid rgb(229, 229, 229); clear: both; list-style: none; margin: 0px 0px 30px; padding: 20px;"><div class="step_num" style="float: left; font-size: 43px; font-weight: bold; margin: 0px; padding: 8px 15px 0px 0px;">
1</div>
<b class="whb" style="margin: 0px; padding: 0px;">Design your circuit board.</b> Use PCB computer-aided design (CAD) software to draw your circuit board. You can also use a perforated board that has pre-drilled holes in it to help you see how your circuit board's components would be placed and work in reality.<div class="clearall" style="clear: both; margin: 0px; padding: 0px;">
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<div class="wh_ad" style="margin: 5px 0px 0px; padding: 0px;">
<div class="wh_ad_inner adunit0" style="margin: 0px; padding: 0px;">
<ins style="background-color: transparent; border: none; display: inline-table; height: 60px; margin: 0px; padding: 0px; position: relative; visibility: visible; width: 629px;"><ins id="aswift_1_anchor" style="background-color: transparent; border: none; display: block; height: 60px; margin: 0px; padding: 0px; position: relative; visibility: visible; width: 629px;"><iframe allowtransparency="true" frameborder="0" height="60" hspace="0" id="aswift_1" marginheight="0" marginwidth="0" name="aswift_1" scrolling="no" style="left: 0px; margin: 0px; padding: 0px; position: absolute; top: 0px;" vspace="0" width="629"></iframe></ins></ins></div>
</div>
</li>
<li style="-webkit-font-smoothing: antialiased; background-color: white; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: 1px solid rgb(229, 229, 229); clear: both; list-style: none; margin: 0px 0px 30px; padding: 20px;"><div class="step_num" style="float: left; font-size: 43px; font-weight: bold; margin: 0px; padding: 8px 15px 0px 0px;">
2</div>
<b class="whb" style="margin: 0px; padding: 0px;">Buy a plain board that is coated with a fine layer of copper on one side from a retailer.</b><div class="clearall" style="clear: both; margin: 0px; padding: 0px;">
</div>
</li>
<li style="-webkit-font-smoothing: antialiased; background-color: white; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: 1px solid rgb(229, 229, 229); clear: both; list-style: none; margin: 0px 0px 30px; padding: 20px;"><div class="step_num" style="float: left; font-size: 43px; font-weight: bold; margin: 0px; padding: 8px 15px 0px 0px;">
3</div>
<b class="whb" style="margin: 0px; padding: 0px;">Scrub the board with a scouring pad and water to make sure the copper is clean.</b> Let the board dry.<div class="clearall" style="clear: both; margin: 0px; padding: 0px;">
</div>
</li>
<li style="-webkit-font-smoothing: antialiased; background-color: white; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: 1px solid rgb(229, 229, 229); clear: both; list-style: none; margin: 0px 0px 30px; padding: 20px;"><div class="step_num" style="float: left; font-size: 43px; font-weight: bold; margin: 0px; padding: 8px 15px 0px 0px;">
4</div>
<b class="whb" style="margin: 0px; padding: 0px;">Print your circuit board's design onto the dull side of a sheet of blue transfer paper.</b> Make sure the design is oriented correctly for transfer.<div class="clearall" style="clear: both; margin: 0px; padding: 0px;">
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<li style="-webkit-font-smoothing: antialiased; background-color: white; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: 1px solid rgb(229, 229, 229); clear: both; list-style: none; margin: 0px 0px 30px; padding: 20px;"><div class="step_num" style="float: left; font-size: 43px; font-weight: bold; margin: 0px; padding: 8px 15px 0px 0px;">
5</div>
<b class="whb" style="margin: 0px; padding: 0px;">Place the blue transfer paper on the board with the circuit board's printed design against the copper.</b><div class="clearall" style="clear: both; margin: 0px; padding: 0px;">
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</li>
<li style="-webkit-font-smoothing: antialiased; background-color: white; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: 1px solid rgb(229, 229, 229); clear: both; list-style: none; margin: 0px 0px 30px; padding: 20px;"><div class="step_num" style="float: left; font-size: 43px; font-weight: bold; margin: 0px; padding: 8px 15px 0px 0px;">
6</div>
<b class="whb" style="margin: 0px; padding: 0px;">Lay a sheet of ordinary white paper over the blue paper.</b> Following the transfer paper's instructions, iron over the white and blue paper to transfer the design onto the copper board. Iron every design detail that appears near an edge or corner of the board with the tip of the iron.<div class="clearall" style="clear: both; margin: 0px; padding: 0px;">
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</li>
<li style="-webkit-font-smoothing: antialiased; background-color: white; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: 1px solid rgb(229, 229, 229); clear: both; list-style: none; margin: 0px 0px 30px; padding: 20px;"><div class="step_num" style="float: left; font-size: 43px; font-weight: bold; margin: 0px; padding: 8px 15px 0px 0px;">
7</div>
<b class="whb" style="margin: 0px; padding: 0px;">Let the board and blue paper cool.</b> Peel the blue paper slowly away from the board to see the transferred design.<div class="clearall" style="clear: both; margin: 0px; padding: 0px;">
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</li>
<li style="-webkit-font-smoothing: antialiased; background-color: white; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: 1px solid rgb(229, 229, 229); clear: both; list-style: none; margin: 0px 0px 30px; padding: 20px;"><div class="step_num" style="float: left; font-size: 43px; font-weight: bold; margin: 0px; padding: 8px 15px 0px 0px;">
8</div>
<b class="whb" style="margin: 0px; padding: 0px;">Examine the transfer paper to check for any black toner from the printed design that failed to transfer to the copper board.</b> Make sure the board's design is oriented correctly.<div class="clearall" style="clear: both; margin: 0px; padding: 0px;">
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</li>
<li style="-webkit-font-smoothing: antialiased; background-color: white; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: 1px solid rgb(229, 229, 229); clear: both; list-style: none; margin: 0px 0px 30px; padding: 20px;"><div class="step_num" style="float: left; font-size: 43px; font-weight: bold; margin: 0px; padding: 8px 15px 0px 0px;">
9</div>
<b class="whb" style="margin: 0px; padding: 0px;">Replace any missing toner on the board with ink from a black permanent marker.</b> Allow the ink to dry for a few hours.<div class="clearall" style="clear: both; margin: 0px; padding: 0px;">
</div>
</li>
<li style="-webkit-font-smoothing: antialiased; background-color: white; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: 1px solid rgb(229, 229, 229); clear: both; list-style: none; margin: 0px 0px 30px; padding: 20px;"><div class="step_num" style="float: left; font-size: 43px; font-weight: bold; margin: 0px; padding: 8px 15px 0px 0px;">
10</div>
<b class="whb" style="margin: 0px; padding: 0px;">Remove exposed parts of the copper from the board using ferric chloride in a process called etching.</b><ul style="margin: 0px; padding: 5px 5px 20px 55px;">
<li style="-webkit-font-smoothing: antialiased; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: none; clear: both; list-style: disc; margin: 0px; padding: 0px;">Put on old clothes, gloves and safety goggles.</li>
<li style="-webkit-font-smoothing: antialiased; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: none; clear: both; list-style: disc; margin: 0px; padding: 0px;">Warm the ferric chloride, stored in a non-corrosive jar and sealed with a non-corrosive lid, in a bucket of warm water. Do not heat it above 115 F (46 C) to prevent toxic fumes from being released.</li>
<li style="-webkit-font-smoothing: antialiased; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: none; clear: both; list-style: disc; margin: 0px; padding: 0px;">Pour only enough ferric chloride to fill a plastic tray that has plastic risers in it to rest the circuit board on. Be sure to do this in a well-ventilated space.</li>
<li style="-webkit-font-smoothing: antialiased; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: none; clear: both; list-style: disc; margin: 0px; padding: 0px;">Use plastic tongs to lay the circuit board face down on the risers in the tray. Allow 5 to 20 minutes, depending on the size of your circuit board, for the exposed copper to drop off the board as it etches away. Use the plastic tongs to agitate the board and tray to allow for faster etching if necessary.</li>
</ul>
<div class="clearall" style="clear: both; margin: 0px; padding: 0px;">
</div>
</li>
<li style="-webkit-font-smoothing: antialiased; background-color: white; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: 1px solid rgb(229, 229, 229); clear: both; list-style: none; margin: 0px 0px 30px; padding: 20px;"><div class="step_num" style="float: left; font-size: 43px; font-weight: bold; margin: 0px; padding: 8px 15px 0px 0px;">
11</div>
<b class="whb" style="margin: 0px; padding: 0px;">Wash all the etching equipment and the circuit board thoroughly with plenty of running water.</b><div class="clearall" style="clear: both; margin: 0px; padding: 0px;">
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</li>
<li style="-webkit-font-smoothing: antialiased; background-color: white; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: 1px solid rgb(229, 229, 229); clear: both; list-style: none; margin: 0px 0px 30px; padding: 20px;"><div class="step_num" style="float: left; font-size: 43px; font-weight: bold; margin: 0px; padding: 8px 15px 0px 0px;">
12</div>
<b class="whb" style="margin: 0px; padding: 0px;">Drill 0.</b>03 inch (0.8 mm) lead component holes into your circuit board with high-speed steel or carbide drill bits. Wear safety goggles and a protective mask to protect your eyes and lungs while you drill.<div class="clearall" style="clear: both; margin: 0px; padding: 0px;">
</div>
</li>
<li class="final_li" style="-webkit-font-smoothing: antialiased; background-color: white; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; border-top-left-radius: 4px; border-top-right-radius: 4px; border: 1px solid rgb(229, 229, 229); clear: both; list-style: none; margin: 0px; padding: 20px;"><div class="step_num" style="float: left; font-size: 43px; font-weight: bold; margin: 0px; padding: 8px 15px 0px 0px;">
13</div>
<b class="whb" style="margin: 0px; padding: 0px;">Scrub the board clean with a scouring pad and running water.</b> Add your board's electrical components and solder them into place.</li>
</ol>
</div>
Embcircuithttp://www.blogger.com/profile/08741264801394262164noreply@blogger.com0