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2011-12-20 by Larry Battraw
... Hi Berto, I use artwork generated from gEDA (on Linux), which I then import as a Postscript file into Inkscape to tweak the color of the negative gEDA puts
2011-12-20 by Larry Battraw
... Hi Andy, I m in Durham. Larry
2011-12-19 by Boman33
Hi Larry, Thanks you for your effort and offer. A while ago I was doing artwork testing for best resolution and print density and I had a post with resolution
2011-12-19 by Andrew
Larry, Where are you in NC? I m in Angier (about 30 minutes south of Raleigh). Andy
2011-12-19 by Larry Battraw
Hi Mike, Not sure what you mean by rigorous testing. I ve done a fair amount of tests to zero in the best exposure time for the combination of lights,
2011-12-19 by MIKE DURKIN
Thank you for your efforts ... Im wondering if you go through rigorous testing of your UV exposures bed? Keeping the stuff cold is no problem ... I have a
2011-12-19 by Larry Battraw
Hi Eldon, I m afraid I don t have anything as organized as a website. I am providing this as a service to the homebrew PCB community and really don t want to
2011-12-18 by Ben L
... Mouser Sells MG Chemical 416DFR-5 12 x 5 for 17.95 + Shipping and 416DFR-500 12 x 500 for $480.00 + Shipping But they don t stock the 500
2011-12-18 by Eldon Brown
Larry, Where and how are you selling the dry-film, do you have a web site. And do you accept Paypal? Regards, Eldon ... [Non-text portions of this message have
2011-12-18 by Larry Battraw
Hi Michael, ... I ve had a couple people contact me about purchasing the dry-film resist that I currently have for sale but only one for the AQ3000 liquid
2011-12-17 by Michael
Any luck Larry?
2011-12-17 by MIKE DURKIN
Practically makes me abandon my attempt to direct resist .... Mike KC7NOA To: Homebrew_PCBs@yahoogroups.com From: randy_hunt960@yahoo.com Date: Sat, 17 Dec
2011-12-17 by randy_hunt960
Thank you for the info. . . Randy
2011-12-17 by Roland Harriston
[Non-text portions of this message have been removed]
2011-12-16 by Ray
... Randy, Dry Film is a Negative acting film that is applied to the copper clad. When you print the image on clear film you have to print it in reverse. The
2011-12-16 by randy_hunt960
Could you provide more info on the Dry Film ? thanks, Randy
2011-12-16 by Ray
Thanks for the info Randy. Based on Benjamin s and your comments, I just ran a .062 board with folded over paper through the laminator. It didn t complain at
2011-12-16 by Rich Osman
Thanks Mark. I hadn t thought about board thermal mass. Maybe a printer with a straight paper path and preheating boards would help. it would be nice to use as
2011-12-16 by randy_hunt960
I can run .062 stock through my 901 with no modifications. I haven t tried to see how the temp needs to be set yet though. Randy
2011-12-16 by Slavko Kocjancic
... Don t preheat board. It s bad idea to have hot plate under OPC drum.
2011-12-16 by Ray
... Benjamin, Yes, that is the one. Sounds like it will work. I ll try running a 6x6 board with paper through and see what the results are. If it groans a lot
2011-12-16 by Benjamin Blumer
I m not at home for the next few months, so I can t check my model number. But -- is that the Scotch laminator that Walmart carries? If so, I ve used it with
2011-12-16 by Mark Lerman
One problem is that paper is flexible and follows the curved paper path while the pcb is rigid. Also a thick copperclad doesn t get hot enough to fuse the
2011-12-16 by Ray
I just purchased a Scotch TL901 laminator and was wondering if anyone has any experience using it to transfer images to copper clad. If so, have you used .062
2011-12-16 by tda7000
Well as I mentioned in another thread, I live in New Zealand, which doesn t help. Cheapest I could find for something that heavy (2.24kg) was Priority Mail
2011-12-16 by Terry Gray
If you will send me your address I will check to see what actual shipping rates would be. Office Depot here in Dallas has the paper for about $8.00-$9.00 for
2011-12-16 by tda7000
This sounds promising, after your first post about this paper I looked on eBay for the CG988A where the price was nice but the shipping cost was terrible. I
2011-12-15 by Rich Osman
I noticed the the series of articles in the group s files section that discussed modding a Lexmark printer to print toner on board material. He goes through a
2011-12-15 by bigbazinga
This may be the A4 version, HP part number CG964A. The weight and brightness figures are the same and although it doesn t have presentation listed in the
2011-12-15 by bigbazinga
The CG988A part number would be for the US 8.5 x11 paper size. Doesn t your side of the pond use the A4 size or something? I think your best bet would be to
2011-12-15 by Richard
See Message #29099 on this board. Let me know on results. RD
2011-12-15 by MIKE DURKIN
Ok ... working now, should of seen that. To: Homebrew_PCBs@yahoogroups.com From: paul.aa9gg@gmail.com Date: Wed, 14 Dec 2011 20:11:22 -0600 Subject: Re:
2011-12-15 by Paul Mateer
remove the comma at the end and the link works..... ... -- Paul Mateer, AA9GG Elan Engineering Corp. www.elanengr.com NAQCC 3123, SKCC 4628, FPQRP 2003
2011-12-15 by MIKE DURKIN
Hey ... try that link again ... I just get a Opss To: Homebrew_PCBs@yahoogroups.com From: k4gmh@arrl.net Date: Wed, 14 Dec 2011 20:20:05 -0500 Subject:
2011-12-15 by Mike
Hello, Finished making the conversion of a Harbor Freight Laminator to do toner transfer using Techniks Toner Transfer film. The conversion, in addition to
2011-12-15 by loadobollocks
... Sounds great, any idea where I can find this in the UK, I ve tried googling CG988A and no-one seems to stock it. (well I sa no-one, not
2011-12-14 by Kim Vellore
Richard, There are a few types of Lacquer thinner available with different solvents in them. Which brand did you use?. I have a board coming up so might try
2011-12-14 by bigbazinga
Typically, the highest purity isopropanol that can be found on store shelves in the US is 91%. However, 99% can be special ordered in pharmacy sections.
2011-12-13 by RDHeiliger
The alcohol I use is also from my Ace Hardware store. Says it is denatured alcohol. Only ingredients listed are alcohol and less than 4% methanol. RD [Non-text
2011-12-12 by Pete B
Sorry hit reply to the wrong mail in my in box, first time that s happened. ... [Non-text portions of this message have been removed]
2011-12-12 by Pete B
Is it hammer finish like shown on your site or high gloss? ... [Non-text portions of this message have been removed]
2011-12-12 by John
... FWIW, I have a little experience with Isopropol alcohol in the US. It is readily available in Pharmacys. I work with epoxy resins occaisionally. The 70%
2011-12-12 by Jeff
Caslav, May I ask what manufacture UV resist coating you use? What method do you use to coat the board? Dip, spin? Jeff
2011-12-11 by Roland Harriston
Addition to Mars Bonfire comments: There are at least three compositions that are generally called xylene . The molecular composition of each of the three is
2011-12-11 by RDHeiliger
The brand name of the lacquer thinner is sunnyside, sold by my local Ace Hardware store. their web page, the can looks like the one stated as general purpose.
2011-12-11 by Leon Heller
... http://www.amazon.com/Behlen-Brushing-Laquer-Thinner-Quart/dp/B004O29S2G Leon -- Leon Heller G1HSM
2011-12-11 by Stefan Trethan
Richard mentioned he used alcohol before. I gather US rubbing alcohol is some poor quality isopropanol, sometimes with all sorts of crap thrown in, so your
2011-12-11 by Mars Bonfire
Checked a number of data sheets for lacquer thinner, none are or contain xylene. My experience using lacquer thinner for non PCB purposes is that it is a more
2011-12-11 by Stefan Trethan
Some laquer thinner might be xylene, but certainly not all. ST
2011-12-11 by Leon Heller
... Lacquer thinner is xylene. Leon -- Leon Heller G1HSM