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Homebrew_PCBs · Homebrew Printed Circuit Boards

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  • Members: 6334
  • Category: Electrical
  • Founded: Dec 6, 2001
  • Language: English
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I am contemplating using CuCl and HCl as etchant and wonder if this pump (described below) would withstand this etchant. The concentration of Hcl would be 5%...
31 Aug 25, 2012
1:06 am

psykhon@...
psykhon
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In the past I used Ferric Chloride. My recent PCB-DIY adventures are just beginning. At present I am using a mixture of ferric chloride and citric acid,...
7 Aug 24, 2012
5:31 pm

DJ Delorie
djdelorie
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For small boards, I wonder if anyone has explored placing the board in a well-sealed, clear glass or plastic food container, or perhaps something more...
4 Aug 23, 2012
12:50 pm

曹春玉
ciidcao...
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... From: Derward Myrick To: Homebrew_PCBs@yahoogroups.com Sent: Wednesday, August 22, 2012 9:38 AM Subject: Re: [Homebrew_PCBs] Re: Magnetic drive pumps for...
1 Aug 22, 2012
2:41 pm

Derward Myrick
derwardmyrick
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I've followed a thread on the Tekscopes group for several days, hoping that someone would ask the question that's eluded me for years. My question is in...
6 Aug 17, 2012
5:37 pm

David
snurfl
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What is the best type of set up to advance into positive developement from iron on and direct etch as I need a way that is more dependable every time. Should I...
2 Aug 17, 2012
3:22 pm

kbyrne10
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Hey guys - over the weekend I worked on milling my own PCB :) I used Diptrace and Ace and milled it out on my homemade CNC machine - came out OK for my first...
6 Aug 15, 2012
3:24 pm

Tony Smith
dropcat2001
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Hi, Am choosing between LaserStar and JetStar premium for making Masks. Anyone who has tried them both? I usually use 85 GSM tracing paper, but the black areas...
9 Aug 12, 2012
5:20 pm

Leon Heller
leon_heller
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hi im going to use a Epson printer to print directly on copper so i need a special ink that must have most resistant and it mustn't harmful for printers head ...
3 Aug 11, 2012
3:43 am

alienrelics
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Hi everyone, I noticed that a few people have mentioned regenerating a cupric chloride etching solution with a few options: aerating it with a fish pump,...
27 Aug 9, 2012
3:48 pm

Derward Myrick
derwardmyrick
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I need about 2 small (~.65 x 1.1 inch) PCBs, They need to be 1/32 inch thick, and have production quality plated thru holes (for strength). Solder mask is...
3 Aug 6, 2012
6:35 pm

Jan Kok
jankok5
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When buying an HF ballast and fluorescent tube does the ballast wattage have to match the tube wattage? Is it allowable to use an hf ballast of higher wattage...
17 Aug 2, 2012
7:26 am

John
v321uk
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Just tried a Harbor Freight 9" laminator (#92499) costing $28. The box it came in says it reaches 300 degrees. After a 0.032" board was run through a few...
35 Aug 1, 2012
4:35 pm

Tony Smith
dropcat2001
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Any recommendations? Bit and Speed. Thanks....
11 Jul 31, 2012
6:53 pm

Bob Butcher
bbutcher85
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Anyone know of source of Cheap Photoresist Film? My last purchase on ebay was poor in quality and high priced... Thanks in advance......
8 Jul 27, 2012
1:49 am

Robin Whittle
robin_whittle
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Hi Group, i'm after picture of The PCB layout of a Full wave Bridge rectifier that appeared in the 1982 and 1985 edition of the ARRL Handbook, does anyone have...
11 Jul 25, 2012
5:27 am

Greg
gregjh24
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A couple of thoughts and guesses: I totally agree with the poster who offered that the "board" looks like perforated board (i.e. point to point wiring) not a...
7 Jul 24, 2012
11:36 am

Kevin B
toolmankev2002
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Here is a potentially novel way of making laser toner transfer paper at home. It requires some ~140gsm card (at about 180um, thicker than standard 80gsm laser...
13 Jul 19, 2012
10:31 pm

tda7000
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Has anyone seen any kind of dual card edge mounting that would slide in lengthwise? I brought fingers out to both sides of this card I made, it's 1.22" wide,...
16 Jul 19, 2012
9:15 pm

James
james10952001
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I just mixed up some Muriatic Acid and Hydrogen Peroxide (1:2) and tried etching a very small piece of PC board (cleaned and with no mask)to see how long it...
12 Jul 19, 2012
9:10 pm

James
james10952001
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Yuk! Now I know why I cannot get reasonable results with the GBC unit I bought! So far, I have not found a source for the Lowell Laminator in the US. If anyone...
5 Jul 13, 2012
4:52 pm

John
jferrell_27283
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Does anyone have a picture of the inside circuit board area of a GBC 220? I lost my diagram when I disassmebled it... Thanks...
3 Jul 11, 2012
1:58 pm

krisfr
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This message is an appendix to my previous message researching Poly Vinyl Alcohol (PVA) as part of a laser transfer paper. I was wondering whether "Dissolvo";...
3 Jul 10, 2012
7:09 pm

JP
jpmcginny
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The trick to solving many problems is finding the right search terms. Here are some Google terms which lead to sources of gummed paper in A4 sheets. I think...
2 Jul 10, 2012
2:36 pm

Stefan Trethan
stefan_trethan
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I just ordered this unit, any suggestions as to getting it to work with HP printer toner method. I will also be using Photo resist method for finer lines and...
9 Jul 7, 2012
9:53 pm

krisfr
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I must admit I enjoy reading this group, not the least of my enjoyment from the diversity of ideas on how to make pcbs at home. I am a toner transfer...
6 Jul 7, 2012
7:01 pm

doc_savage_bronzeguy
doc_savage_b...
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Thanks Robin for the detailed information. I am also interested in how to obtain high quality photo tools and on and off have been testing over many years. A...
1 Jul 2, 2012
12:49 pm

Boman33
bertho_boman
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Please see my previous message for a discussion of the desirable properties of phototools, and about printing with a 1200 DPI laser printer. In the future, I...
1 Jul 2, 2012
9:30 am

Robin Whittle
robin_whittle
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Here is a potentially novel technique for making transparent water-clear (very low optical diffusion) phototools with a laser printer and a laminator. This...
1 Jul 2, 2012
9:19 am

Robin Whittle
robin_whittle
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Although I have been making successful single-sided PCBs for a while now, I just recently decided to try making a double sided board with SMD (.5mm TQFP)...
40 Jul 2, 2012
3:45 am

Robin Whittle
robin_whittle
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