Re: New here
2010-04-13 by daemons_ca
James, I got the TL901 after all. Opened it up today and I see what you mean about the SMT resistors. So which pin did you use on the connector? From what I
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Re: another layout question
2010-04-13 by daemons_ca
Eagle is pretty easy to learn, if you follow the tutorial. It s what I ve been using since version 4.01, and works great under linux (linux version). Some
Re: another layout question
2010-04-13 by acidblue
Kicad is by far the best free CAD program out there. http://kicad.sourceforge.net/wiki/index.php/Main_Page I use it all the time, it s freaking awesome. No
Re: [Homebrew_PCBs] Re: another layout question
2010-04-13 by Malcolm Parker-Lisberg
Charles Two free PCB programms I use are ExpressSCH and ExpressPCB. I use this for quick toner transfer PCB designs for one off. It does not give a Gerber file
Re: another layout question
2010-04-13 by awakephd
As you ll see earlier in this thread, I like KiCad. Available for both Windows and Linux. I don t have nearly as much experience as others on this board, but
Re: [Homebrew_PCBs] Re: another layout question
2010-04-13 by Slavko Kocjancic
... EaglePCB is free for 1/2 euro format board.
Re: another layout question
2010-04-13 by ae5ew
My system is WinXPPro SP3 32-bit. AMD 64 x2 5200+ I have DosBox so I can most likely run most Dos software though I would prefer more modern products.
Re: another layout question
2010-04-13 by ae5ew
that was why I put best in quotes. Charles AE5EW
Hi! I'm new
2010-04-13 by ae5ew
It s true that I am new to this group but, I personally have not been new for a very long time. Age: 61. I built my first kits in high school. My first kits
Re: [Homebrew_PCBs] Re: another layout question
2010-04-13 by kimvellore@sbcglobal.net
Charles, Welcome to the group. The question you have asked has come up a number of times and also debated quite a bit here but the bottom line is the best
Re: another layout question
2010-04-13 by ae5ew
Hi. I m new here. How about a list of the best free programs? Charles AE5EW
Re: New here
2010-04-12 by bebx2000
James, Thanks for the input. I considered mercury vapor lamps, but I don t care for the discontinuous spectrum. The strong mercury line at 365.483nm is right
Re: New here
2010-04-12 by sailingto
I need to try that - I ve got to remove cover from my laminator to see the rollers while heating - that would be the best way by far. Ken H
Re: New here
2010-04-11 by James
... I used the IR thermometer to measure the temperature of the rollers directly, I didn t try using it on the pcb.
Re: New here
2010-04-11 by James
... Metal halide lamps produce relatively little UV, the halide salt vapors absorb it. A clear mercury vapor lamp produces much more, while the bare quartz arc
Re: New here
2010-04-11 by bebx2000
Actually, the acetone is not just to remove any oils. The thought was; if you use acetone to remove the toner after etching, perhaps a residue will help melt
Re: [Homebrew_PCBs] Re: New here
2010-04-11 by KeepIt SimpleStupid
(4) Wipe board with acetone (plenty of acetone), let evaporate. I d like to point out that Acetone does leave a film. You might try Methanol dried with
Re: New here
2010-04-10 by sailingto
Baxter - I just read the link you provided on the T120 laminator - sounds good. I do like the adjustable thermostat. I note it s a 4 max width? That would
Re: New here
2010-04-10 by bebx2000
I had a Royal Sovereign NR-901 from Sam s Club with a foil setting that worked fairly well. Unfortunately, trying to pass a board that was too small jammed it
Re: Has anyone tried a laser diode to burn resist ? 99gus
2010-04-10 by James
... I had that idea and did some looking around. Apparently it does work, but it s difficult to get good enough resolution and you get nasty fumes burning off
Re: New here
2010-04-10 by James
... I haven t had any trouble at all, I was afraid it would be an issue but 1/16 boards feed right through without a problem. I haven t measured the speed it
Re: New here
2010-04-10 by daemons_ca
James, I knew there was a way to just mod the TL901 without replacing it s guts. Cool find. If I don t end up getting the GBC one, I ll get the TL901, and I ll
Re: New here
2010-04-10 by daemons_ca
Ken, If you can send me a link to one that looks the same as the one you have, it would be helpful. I ve found 5 different models on ebay so far. Thanks. Marc
Re: New here
2010-04-10 by daemons_ca
Good info on toner temps. Thanks. I think the TL901 is too low in temperature to use for transfer as-is (according to their specs), but I want to get one and
Re: Minimum Pad Size for Homebrew Single Sided Boards?
2010-04-10 by awakephd
That s also what I have been using. I am not dissatisfied with them; just not completely satisfied with my technique! :) One of these days I d like to work up
Re: New here
2010-04-10 by sailingto
Thanks for the link - A friend purchased that one and is happy with it also. I looked on my ebay acct and it only shows purchased for the last 60 days max -
Re: [Homebrew_PCBs] Re: New here
2010-04-10 by Alessio Sangalli
... IR thermometers will never work well, by definition, on most shiny surfaces. On the instructions of mine it says to apply some dark duct tape to a part
Re: [Homebrew_PCBs] Re: Minimum Pad Size for Homebrew Single Sided Boards?
2010-04-10 by Alessio Sangalli
... You know, I am pretty satisfied with: http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=94606 I use those cheap, regular bits with a
Re: New here
2010-04-10 by daemons_ca
Ken, which IR thermometer off ebay did you buy? What s the model. I m looking at a few and I d like to know what to avoid. :) Thanks Marc
Re: New here
2010-04-10 by sailingto
Yep, what James says is the way it s done. James, what IR thermometer do you have? I purchased a cheapie off ebay. It works pretty good at room temps, and
Has anyone tried a laser diode to burn resist ? 99gus
2010-04-10 by wftelectron
http://hackaday.com/2009/10/25/diy-plotter-with-laser/ Best Gus
Re: New here
2010-04-10 by James
... Easiest thing to do is buy a laminator that someone else already has experience with. I used an IR thermometer to measure the roller temperature when I was
Re: [Homebrew_PCBs] Re: New here
2010-04-10 by Steve
Thanks for the info guys. I found some information on the web about the TL901, but nothing about temperature. How does one know before purchase if a particular
Re: New here
2010-04-09 by James
... It depends on the toner among other things. I modified my laminator to make it hotter and it was a big improvement, I believe mine is also a TL901, it was
Re: Minimum Pad Size for Homebrew Single Sided Boards?
2010-04-09 by James
... I don t actually know the RPM of my drill, I used a nice Maxon precision DC motor which is rated 11K RPM under load at 24V, and I run it around 32V with
Re: any way to improve image placement on page?
2010-04-09 by James
... It s not the case with all printers, as with any of this hacking stuff, sometimes you get lucky and find a combination of equipment and materials that
Re: [Homebrew_PCBs] Where to buy soldermask?
2010-04-09 by Al Castaneda
I used to buy the Ink resins from a Company Called Advance (silkscreening supply) in City of Commerce (L.A.) on or Close to Tubeway Ave. . I don t remember
OKI/Metcal webstore for Europe
2010-04-09 by Leon Heller
OKI/Metcal now has a European webstore: http://www.oki-europe.com/ Leon -- Leon Heller G1HSM
Re: New here
2010-04-09 by sailingto
... Temperature required depends on toner - most toners (HP, etc) require around 300F to 320F for good transfer. At 270F the toner will transfer, but doesn t
Re: [Homebrew_PCBs] New here
2010-04-09 by Harvey White
... Depends very much on the paper. According to pulsar, the press N play paper takes very high heat. Pulsar takes 6 to 8 times through the GBC laminator I
Re: [Homebrew_PCBs] New here
2010-04-09 by Steve
Hi all, What temperature does the toner need to reach in order to transfer? I m thinking about using the TL901 laminator for double-sided board, 1/16in
Re: [Homebrew_PCBs] Where to buy soldermask?
2010-04-08 by Volkan Sahin
I bought it from Think&Tinker last January, I ve more than enough. If you want to just try, I can send you free. I ve ~20 foot and if you want to buy tell me
Re: [Homebrew_PCBs] Copier transfers vs printers
2010-04-08 by William Whyte
i use copier at Office Max all the time. works well. no connect at all with O Max.
Copier transfers vs printers
2010-04-08 by Bill
Has anyone had luck using copiers to transfer boards versus laser priters? I have a template that would lend itself to copying easier than running it through
Where to buy soldermask?
2010-04-08 by Tristan
Where can I get either LPI or dry-film soldermask nowdays? I m in California, USA. I know thinktink has 40foot rolls of dry film, which might be a little more
Re: New here
2010-04-08 by awakephd
Welcome! I ve only been around a year or so, so I m still relatively new. Lots of great info here; good folks with lots of experience to share.
New here
2010-04-08 by daemons_ca
Hello, I just joined the group. A little about me. I ve been doing electronics since the age of 12 (I m 38) and studied electronics in community college. I
Re: Anyone in USA ever order parts from Farnell?
2010-04-07 by Ben L
Take a look at Mouser www.mouser.com and Also Allied Electronics www.alliedelec.com Between those 2 you should be able to find just about anything you would
Re: What are the latest paper recomendations...
2010-04-07 by James
... I ve used catalogs from Action Lighting with great results, Crutchfield worked well too. The last couple of boards I made were with pages from a Women s
Re: [Homebrew_PCBs] Re: Alignment for double-face boards
2010-04-07 by Alessio Sangalli
... I tried this but I didn t get it aligned very well. Do you keep the full sheets or you trim them? In this case, the size of the toner to transfer is almost