RE: [Homebrew_PCBs] Plating PCB thru holes
2014-04-14 by Cecil Bayona
The link I provided to a method using Glass Defogger repair kit said that it survived running the board through five SMT Soldering oven tries, that is not bad.
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Re: [Homebrew_PCBs] Iron Wattage
2014-04-14 by <heather@...>
I do galvanic etching on 20 & 22 gauge copper sheets, often 6 x 4 which is bigger than an iron. Toner transfer is one of the etch resists I use. I have had
Re: [Homebrew_PCBs] Plating PCB thru holes
2014-04-14 by Harvey White
... I suspect that epoxy will decompose, burn is likely the right answer, depending on the temperature. I also suspect that a conductive ink is conductive
RE: [Homebrew_PCBs] Plating PCB thru holes
2014-04-14 by Mark Harrison
Hi, Does anyone know what happens to conductive inks and epoxy if the board goes through a reflow oven, or if someone tries soldering to the feedthrough?
Drill size for common components
2014-04-13 by <leeleduc@...>
I found a table at http://www.apcircuits.com/services/proto1/drilling.html http://www.apcircuits.com/services/proto1/drilling.html that gives suggestions for
Re: [Homebrew_PCBs] Double Sided Boards w/ Laminator
2014-04-13 by Stefan Trethan
I used a strip of board as a leader, with the two sheets taped to either side of it. For alignment hold them against a bright light and match the drill holes
Re: [Homebrew_PCBs] Double Sided Boards w/ Laminator
2014-04-13 by Harvey White
... I use a half thickness board, then epoxy the top and bottom together to get a board (using what I have for board stock) that is 0.043 or so thick.
Double Sided Boards w/ Laminator
2014-04-13 by Mike
Hello, What methods are being used for successful toner transfer to a double sided board using a laminator? I ve tried several different methods without much
RE: [Homebrew_PCBs] Iron Wattage
2014-04-13 by Tony Smith
Usually it s just replacing the thermal cut-out for a high rated one. This sort of thing: http://www.apart4u.co.uk/thermal-cut-out-switch-l120c.html, although
Re: [Homebrew_PCBs] Iron Wattage
2014-04-12 by Bill Maxwell
Higher temperature modification for a commonly available Lowell laminator can be found at https://ultrakeet.com.au/write-ups/superFuserV2 ...
Re: [Homebrew_PCBs] Iron Wattage
2014-04-12 by Stefan Trethan
There was some discussion in the past about modifying laminators for higher temperature and thicker boards. I made one from a photocopier fuser unit so can t
Re: [Homebrew_PCBs] Iron Wattage
2014-04-12 by Christopher R. Fraction
Also the board I am trying to do is TOO thick Christopher R. Fraction ... On Saturday, April 12, 2014 12:34 PM, Stefan Trethan
Re: [Homebrew_PCBs] Iron Wattage
2014-04-12 by Christopher R. Fraction
I have two laminators, one from Harbor Freight and another one. I can not get either of them anywhere near hot enough to transfer toner... Christopher R.
Re: [Homebrew_PCBs] Iron Wattage
2014-04-12 by Stefan Trethan
If you use a laminator (or fuser unit from a laser printer) you will eliminate this problem of variable board size. I haven t done a board of any size with
Re: [Homebrew_PCBs] Iron Wattage
2014-04-12 by <krisfr@...>
The higher the wattage the more heat the iron will put out. I am trying to do toner transfer to a board that is more than twice the size of the surface of the
Plating PCB thru holes
2014-04-12 by Cecil Bayona
This subject has been discussed before but I m wondering if anyone has tried this method before. I looks pretty simple to do and uses readily available
Re: Iron Wattage
2014-04-11 by <kbyrne10@...>
The pulsar pro web site has your answer and proper way to calibrate it also. Try www.pulsarpro.com http://www.pulsarpro.com and google it.
Re: [Homebrew_PCBs] Iron Wattage
2014-04-11 by Stefan Trethan
I don t think it matters, since all clothes irons are temperature controlled. A higher power iron will only heat up faster. Myself I use a laminator instead of
Iron Wattage
2014-04-11 by <krisfr@...>
What Wattage Iron does anyone use for toner transfer work.
Re: [Homebrew_PCBs] Re: Iron Wattage
2014-04-11 by Cecil Bayona
Bad link, missing information, happiness is when people copy and paste links instead of typing them from memory and getting them wrong.
RE: [Bulk] Re: [Homebrew_PCBs] Muriatic Acid and 3% Hydrogen Peroxide First Attempt
2014-04-11 by Mike Law
Just to chip in my 2 cents: 25% HCl (in the UK, maybe ask for spirits of salt at the hardware type shop). 3% peroxide from the chemist. First etch - nice and
Re: [Homebrew_PCBs] Muriatic Acid and 3% Hydrogen Peroxide First Attempt
2014-04-11 by Harvey White
... I think less muriatic acid and more H2O2, say 1 part to 4 parts or 1 part to 3 parts. Harvey
Re: Muriatic Acid and 3% Hydrogen Peroxide First Attempt
2014-04-11 by <kbyrne10@...>
Board was just sitting in tupper ware container but at times I brushed it with a new sponge. I will try your way with a paint brush next attempt.
Re: Muriatic Acid and 3% Hydrogen Peroxide First Attempt
2014-04-10 by <kbyrne10@...>
What brand name did you try of the higher % and where did you buy it if I may ask? I bought my 3% at a major drug store Rite Aid.
Re: Muriatic Acid and 3% Hydrogen Peroxide First Attempt
2014-04-10 by <beefyzee@...>
I tried 3% H2O2 once and that was enough for me, nothing happened. The bottle was straight out of the supermarket. Was it degraded ?, I ll never know. My
Re: Muriatic Acid and 3% Hydrogen Peroxide First Attempt
2014-04-10 by <leeleduc@...>
Are you putting the board in the etchant and letting it sit there?. It will take the board a long time to etch this way even if you rock or agitate the tray.
Muriatic Acid and 3% Hydrogen Peroxide First Attempt
2014-04-10 by <kbyrne10@...>
I just tried another version of etchant solution. 1. Lowels lumber yard Crown Muriatic Acid and 2. Drug store version of hydrogen peroxide 3 % type. Mix 1 &
Re: [Homebrew_PCBs] Re: Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-10 by Malcolm Parker-Lisberg
Now that is an impressive speed of etch, a bit aggressive though for 5 thou. tracks Malcolm I don t suffer from insanity I enjoy it! Mene, mene, tekel,
Re: Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-10 by <leeleduc@...>
Fast etch video https://www.youtube.com/watch?v=OTGZcY7WyYI https://www.youtube.com/watch?v=OTGZcY7WyYI
Re: [Homebrew_PCBs] Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-10 by <leeleduc@...>
I use the standard 1 part HCL to 2 parts H2O2. I place the board face up in a shallow glass or plastic container and mix up enough etchant to submerse the
Re: [Homebrew_PCBs] Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-09 by Peter Johansson
... use. The 27% is too aggressive for me. I can etch a 2X4 inch, 1 ounce board in about 1 minute using 9% H2O2 and a foam paint brush. What ratio of HCl:H2O2
Re: [Homebrew_PCBs] Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-08 by <leeleduc@...>
I find that 9% Peroxide (30 Volume Clear Developer) is a good strength to use. The 27% is too aggressive for me. I can etch a 2X4 inch, 1 ounce board in about
Re: [Homebrew_PCBs] Re: Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-07 by Peter Johansson
... I think I have answered my own question here: http://www.using-hydrogen-peroxide.com/hairdressing-peroxide.html It seems as if the 40% volume is the
Re: [Homebrew_PCBs] Re: Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-07 by Peter Johansson
... also.I use it to remove bloodstains from clothing.40 0/0 will remove stains without harming the fabric,using just a drop.. I just googled and there is a
Re: [Homebrew_PCBs] Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-07 by Mark Lerman
To make that clearer, I mean places that sell to beauty parlors. Most will sell to individuals, though some require buyer to be a licensed beautician. At 10:22
Re: [Homebrew_PCBs] Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-07 by Mark Lerman
You can also get high percentage hydrogen peroxide at beauty supply shops in the US. It s very inexpensive. Mark At 08:30 AM 4/7/2014, you wrote: Greetings!
Re: [Homebrew_PCBs] Question about starting CuCl
2014-04-07 by Harvey White
... I ve never quite understood the direct route, that is, going from H2O2 and HCl by adding copper to get the etchant, I know why it works, but the logic
Re: Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-07 by <npublici@...>
Beauty shop suppliers,like Sally s carry high percentage peroxide, also.I use it to remove bloodstains from clothing.40 0/0 will remove stains without
Re: [Homebrew_PCBs] Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-07 by Misc Clark
Greetings! Your results sound impressive! Is 35% FOOD GRADE peroxide the same as the chemical you use? I see food grade is readily available... Thanks, and
Re: [Homebrew_PCBs] Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-07 by <beefyzee@...>
As per your request I ve created a new album Beefys Stuff and put a couple of pictures of the board there. It s hard to get a good photo at night time with
Question about starting CuCl
2014-04-07 by Peter Johansson
I have a question about starting CuCl etching. I have done the obvious googling and reading, but have been at a bit of a loss for this one. I happen to have
Re: Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-06 by <beefyzee@...>
Roger, I ve got your post in my email but it s not showing here in the forum yet. Anyway the supplier is: ANPROS PTY LTD Factory 16 15 Macquarie Place Boronia
Re: [Homebrew_PCBs] Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-05 by <beefyzee@...>
Thanks very much James, that s very helpful information. Keith.
Re: [Homebrew_PCBs] Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-05 by James
Yep, works great, I also use 35% H202. Don t throw the used etchant out, just add a little H202 every time you etch to regenerate it - I use about 1 cap in
Re: [Homebrew_PCBs] Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-05 by søren hansen
Pictures please. :-D
Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.
2014-04-05 by <beefyzee@...>
Just thought I d share my experience with the following. Mixed 200ml of 30% builders hydrochloric acid with about 70ml of 35% hydrogen peroxide and etched my
Re: Flex PCB, 0.008" trace widths
2014-04-04 by <krisfr@...>
Tell us some the details of just how you did this fine work... Thanks
Re: [Homebrew_PCBs] Flex PCB, 0.008" trace widths
2014-04-04 by Eldon Brown
Paul and All, After using the Toner Transfer Method to create PCBs, I prefer very thin Solder on my new projects. Solder is much less expensive than Liquid
Re: [Homebrew_PCBs] Flex PCB, 0.008" trace widths
2014-04-02 by DJ Delorie
I typically use Liquid Tin from MG Chemicals to tin-coat my boards right after etching. http://www.delorie.com/pcb/liquidtin/
Flex PCB, 0.008" trace widths
2014-04-02 by <walton.paul@...>
Hello, I m new to this group. I thought I d share this PCB I made last night. http://imgur.com/a/oCCnt http://imgur.com/a/oCCnt These 8 mil traces are the