Re: [Homebrew_PCBs] Printer and Pulsar Paper
2012-02-18 by joe M
Mark, I had better luck with the photosensitive process than the toner transfer process. I tried all kinds of paper from magazine paper, HP Presentation paper,
Messages
Browse messages
Page 125 of 707 · 35337 messages matched
Re: Solder Mask
2012-02-18 by Terry
I agree with Andrew...all the stuff I have seen, and used, have had an oven drying step before UV curing.
Re: Printer and Pulsar Paper
2012-02-18 by Terry
Probably best to follow Pulsar s advise and use a Canon based printer. Brother DOES NOT work due to the fact their toner chemistry is different. I have found
Printer and Pulsar Paper
2012-02-18 by RL
I had just purchased some Toner Transfer paper from Pulsar. Do any of you have any suggestions on the type of printer that you have had good luck with this
Re: Solder Mask
2012-02-18 by Andrew
Bob, Do I understand correctly that this process does not include a drying step? With other processes I believe you apply the liquid, dry it in an oven, and
Re: Solder Mask
2012-02-18 by storan4wd
... You re right, that would certainly be possible but it s another time consuming procedure to make the screen and it uses limited shelf life chemistry. I
Re: [Homebrew_PCBs] Re: Solder Mask
2012-02-17 by Kerry Wentworth
... But you COULD put an image on it, and have the soldermask only placed where you want it. Then just expose the whole board. Wouldn t that be easier? Kerry
Re: PCB EDM
2012-02-17 by Andrew
... I m not worried about the stiffness of the wire as it will be supported for all but a very short (i.e.
Re: Solder Mask
2012-02-17 by storan4wd
... Hi Kerry, I use a silk screen mesh but there s no image on it - it s only to ensure and even coating. Bob
Re: [Homebrew_PCBs] Solder Mask
2012-02-17 by Kerry Wentworth
... As long as you are applying it with a silkscreen, why not block out the parts where you don t want masking? Kerry
Re: [Homebrew_PCBs] Re: Laser Transparency OHP Film
2012-02-17 by Leon Heller
... Yes, they are. Leon -- Leon Heller G1HSM
Solder Mask
2012-02-17 by storan4wd
I ve been playing with some UV curable green solder mask (Mechanic Brand from China eBay - comes in a 10ml syringe for £1-2). I get a really even coating by
Re: Laser Transparency OHP Film
2012-02-17 by storan4wd
... Thanks for the advice Leon and Stuart. I m amazed that you get results with a 1200DPI inkjet. Are the results really good enough for 0.5mm LQFP? Regards,
Re: Laser Transparency OHP Film
2012-02-17 by storan4wd
Hi Paul, ... Thanks for that. It does seem to be the favourite if rather pricey. I m going to try some vellum next week, if that s no good I think it s a trip
Re: Laser Transparency OHP Film
2012-02-17 by storan4wd
Hi DJ, ... Wow, I m impressed that you ve written your own sw! I ve tried using the Gutenprint drivers under Linux which are good but my printer just isn t up
Re: Laser Transparency OHP Film
2012-02-17 by storan4wd
... Hi Joe, Thanks for that suggestion; I ve just found some heavyweight vellum on eBay so I ll give it a whirl. Bob
Re: [Homebrew_PCBs] Laser Transparency OHP Film
2012-02-17 by lists
In article , ... Yup, it s designed for the job. -- Stuart Winsor Only plain text for emails http://www.asciiribbon.org
Re: [Homebrew_PCBs] Laser Transparency OHP Film
2012-02-17 by Leon Heller
... Try Mega Electronics LaserStar film, I used to use it with an HP laser printer. I now use their JetStar Premium film with a cheap 1200 dpi HP 9540 inkjet
Re: [Homebrew_PCBs] Laser Transparency OHP Film
2012-02-17 by Paul Whatton
Laserstar :-) http://www.megauk.com/artwork_films.php http://www.rapidonline.com/Tools-Equipment/Laser-printer-PCB-artwork-film-29485 I do use OHP film as
Superfuser and Wavemaster Tank: interim report
2012-02-17 by Harvey White
I ve tried a few experiments today: 1) the rollers on the superfuser are far apart. Do NOT use another board to poke the first one through. It might work to
Re: Removing FeCl3 stains
2012-02-17 by bebx2000
I bought a brand called, Clear-All Positive Drain Cleaner at ACE Hardware in Los Angeles. There are lots of different brands. Just make sure that it has 90%
Re: [Homebrew_PCBs] Laser Transparency OHP Film
2012-02-17 by DJ Delorie
... I use an epson R280 printer (claria inks) and found that the regular software just can t print decent films. So I wrote my own. I do 2880 dpi prints in
Re: [Homebrew_PCBs] Laser Transparency OHP Film
2012-02-16 by joe M
Hello, Have you tried Vellum paper? Heard that it works well. Joe
Re: [Homebrew_PCBs] Re: Removing FeCl3 stains
2012-02-16 by Confidential
Could you share a specific product name? ________________________________ From: bebx2000 To: Homebrew_PCBs@yahoogroups.com Sent:
Re: [Homebrew_PCBs] Re: PCB EDM
2012-02-16 by Confidential
As someone who has seen a lot of EDM in action... his whole edm thing creates a very interesting paradox. I don t think it could work because as soon as the
Laser Transparency OHP Film
2012-02-16 by storan4wd
I usually make PCBs with Riston dry film and artwork from an Epson D92 inkjet. Unfortunately, the inkjet can t cope with 0.5mm LQFP (edges are too ragged
Re: [Homebrew_PCBs] Old Dynaart equipment and Sodium Persulfate
2012-02-16 by DJ Delorie
... If the toner is too hot, it becomes a liquid instead of a sticky plastic, and won t adhere the paper to the pcb. You ll see some toner on the paper and
Re: Old Dynaart equipment and Sodium Persulfate
2012-02-16 by tda7000
Interesting, when I use magazine paper, that bubbling of the paper is a good sign to me that the transfer was done well. So far it hasn t pulled anything off
Re: [Homebrew_PCBs] Old Dynaart equipment and Sodium Persulfate
2012-02-16 by Harvey White
... We are talking two different things here. if I let the paper cool or perhaps dry out on the board, it bubbles up and pulls the toner off the board.
Re: [Homebrew_PCBs] Old Dynaart equipment and Sodium Persulfate
2012-02-16 by DJ Delorie
... Hmm.. I think we re talking about different things. My paper was curled BEFORE I printed the artwork on it. I.e. right out of the package. If it s too
Re: [Homebrew_PCBs] Re: Removing FeCl3 stains
2012-02-15 by Simao Cardoso
... Once i didn t had more oxalic acid around and i diluted hydrochloric acid in water, tested in a non visible part of the shirt and them removed the FeCl3
Re: [Homebrew_PCBs] Old Dynaart equipment and Sodium Persulfate
2012-02-15 by Harvey White
... I did get some severe drying/curling if I did not immediately put the board in water to soak it. I think that for this batch of paper, I ll do silk
Re: Removing FeCl3 stains
2012-02-15 by bebx2000
Quite by accident, I recently discovered that an acidic super drain cleaner composed mainly of sulfuric acid cleans the FeCl3 stains on hard surfaces almost
Re: [Homebrew_PCBs] Old Dynaart equipment and Sodium Persulfate
2012-02-15 by DJ Delorie
My experience with the white pulsar paper is different - it dries out over time, which also causes the curling. I hold it over hot water until it absorbs
Re: [Homebrew_PCBs] Re: PCB EDM
2012-02-15 by Reginald Beardsley
Andrew, First thank you for taking so much of your time to reply. What I have in mind is feeding a fine (e.g. 0.003 ) steel wire end on into the PCB w/ spark
Re: PCB EDM
2012-02-15 by Andrew
Reg, I saw your post in the EDM group as well as here. There is a good reason you have gotten no responses here, and that the responses you got in the EDM
Removing FeCl3 stains
2012-02-15 by Leon Heller
Oxalic acid is about the only stuff that removes FeCl3 stains from clothes etc. I bought some a long time ago, but have never needed it until my latest PCB
Re: [Homebrew_PCBs] Re: Old Dynaart equipment and Sodium Persulfate
2012-02-15 by Harvey White
... Thanks. I do, too, but don t use the Mr. Clean, but do use 1000 grit sandpaper. The toner goes off rather quickly, and any small pits (not the large
Re: Old Dynaart equipment and Sodium Persulfate
2012-02-15 by bebx2000
Hi Harvey, I use the Green Foil before I etch and it seems to fill any pin holes in the toner. It doesn t like to stick if the toner has any white residue from
Old Dynaart equipment and Sodium Persulfate
2012-02-15 by Harvey White
At a recent hamfest, I picked up (and not for much, so this was lucky) a Wavemaster II and a Superfuser, both by Dynaart (eventually became Pulsar). Although I
Re: PCB Book
2012-02-15 by Robert
Interesting, SPIE has a student rate of only $10 for special consideration nations with less than world average salarys and income. The Individual rate for
Re: PCB Book
2012-02-15 by Robert
I should mention another thing about texts, there are some club memberships that offer discounts, Barnes & Noble is $25 per year and if you buy more than 3
Re: PCB Book
2012-02-15 by Robert
I use Barnes & Noble as a primary search, and supliment with search from Abebooks.com and Biblio.com Usually when a marketplace title shows up in a B&N
Re: PCB Book
2012-02-14 by Robert
Good question! There are so many, iy s really hard to choose, I can list a few that I cannot afford, guessing the high cost is a result of on demand
Re: [Homebrew_PCBs] 6/6 and 4/4 mil tried!
2012-02-14 by DJ Delorie
... I ve tried 5 mil for some small boards, but not 4. My clad is 1oz at the moment, which is hard to etch with fine traces.
Re: [Homebrew_PCBs] Re: PCB Book
2012-02-14 by Bruce Parham
This makes no sense - $20 to almost $150 for a book that s already five to ten years out of date. No thanks! Bruce
Re: [Homebrew_PCBs] Re: PCB Book
2012-02-14 by Paul Galarneau
Here is a cheaper one. http://www.abebooks.com/book-search/isbn/0071464204/ ... From: lists To:
Re: [Homebrew_PCBs] Re: PCB Book
2012-02-14 by Chris Farrow
you might try abebooks.com: http://www.abebooks.com/servlet/BookDetailsPL?bi=6073974031&tab=1&searchurl=isbn%3D9780071464208%26sts%3Dt%26x%3D0%26y%3D0 the book
Re: [Homebrew_PCBs] Re: PCB Book
2012-02-14 by lists
In article , ... Aha! Amazon.com - American site. Bet they wouldn t ship free to the UK. I was
Re: [Homebrew_PCBs] Re: PCB Book
2012-02-14 by Paul Galarneau
Try http://www.amazon.com/Printed-Circuit-Boards-Fabrication-McGraw-Hill/dp/0071464204/ref=sr_1_1?ie=UTF8&qid=1329240092&sr=8-1 ... From: lists