Re: [Homebrew_PCBs] Drilling
2010-02-01 by Stefan Trethan
There s a duty cycle on the 12V model? I didn t know that. Doesn t get warm enough for me to notice so I suppose it ll be OK. Probably depends a lot on the
Messages
Browse messages
Page 224 of 707 · 35337 messages matched
Re: [Homebrew_PCBs] Drilling
2010-02-01 by Leon Heller
... I use 0.7 mm for most through-hole parts. Leon
Re: [Homebrew_PCBs] Yet another UV idea
2010-02-01 by Leon Heller
... Long-wave UV isn t particularly dangerous. Leon -- Leon Heller G1HSM
Re: [Homebrew_PCBs] Yet another UV idea
2010-02-01 by Leon Heller
... It should work OK. Leon -- Leon Heller G1HSM
Re: [Homebrew_PCBs] Seeking Silicon Chip magazine Nov 2007
2010-02-01 by Tony Smith
Don t bother building a timer, just pinch the controls off an old microwave oven. Dead microwaves usually have a blown fuse, or no longer match the kitchen
Re: [Homebrew_PCBs] Seeking Silicon Chip magazine Nov 2007
2010-02-01 by David Griffith
... Yes. Thanks for sending it. -- David Griffith dgriffi@cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is
Re: [Homebrew_PCBs] Peach Vario
2010-02-01 by Marko Pavlin
Thanks. That s really helpful. I have dry film, but I ve never got good results. Regards, Marko
Re: [Homebrew_PCBs] Re: Liquid Tin
2010-02-01 by DJ Delorie
... Huh. Cold seems to work just fine, though, but forgetting to rinse results in a horrible mess. I ll have to re-read the directions on the bottle. Then
Re: [Homebrew_PCBs] Drilling
2010-02-01 by DJ Delorie
... I use a dremel with 0.013 drill bits. The runout is about 7 mil (half the drill s width) so getting the bit to hit the right spot on the pcb is tricky.
Re: Drilling
2010-02-01 by chris
... I use one of several options depending on how many holes in what I need to do.. I used to used a home made drill press made form a couple of chunks of wood
Re: [Homebrew_PCBs] Seeking Silicon Chip magazine Nov 2007
2010-02-01 by Donald H Locker
Look at the pictures (click the schematic on the opening page) - almost all information is there. Words not really necessary, IMO. Donald. ... From: David
Re: [Homebrew_PCBs] Seeking Silicon Chip magazine Nov 2007
2010-02-01 by Reg
Hello David. Do you need the complete article? Reg. ... [Non-text portions of this message have been removed]
Re: [Homebrew_PCBs] Drilling
2010-02-01 by JanRwl@AOL.COM
In a message dated 1/31/2010 1:52:20 P.M. Central Standard Time, jamesrsweet@gmail.com writes: Is there a good low cost option or am I best off just building
Re: [Homebrew_PCBs] Re: Liquid Tin
2010-02-01 by Simao Cardoso
... Just read both manual and MSDS http://www.mgchemicals.com/downloads/pdf/specsheets/421.pdf http://www.mgchemicals.com/msds/english/liquid/421-liquid.pdf
Re: [Homebrew_PCBs] Seeking Silicon Chip magazine Nov 2007
2010-02-01 by David Griffith
... I was hoping to find someone with the hard copy to scan it. That webpage doesn t have the whole article. -- David Griffith dgriffi@cs.csubak.edu A:
Re: Drilling
2010-02-01 by tda7000
... I just looked at the Proxxon stuff, it looks nice and price doesn t seem too bad either. How good is it? So far my drilling has been a hand-held pin-vise
Re: Drilling
2010-02-01 by Ben L
... I have used the Dremel Drill Press both the older version and the newer Version, when I do boards I maybe drilling 4000+ holes. Really need to get my CNC
Re: Liquid Tin
2010-02-01 by designer_craig
Jim, I would not return the used solution to the bottle. I would think the Cu ions from the board as the Tin plates on would degrade the stock solution. Best
Re: Liquid Tin
2010-02-01 by designer_craig
Years back in the September 1971 issue of Ham Radio Magazine Larry Hutchinson had an article Practical Photofabrication of Printed-circuit boards . In that
Re: Drilling
2010-02-01 by designer_craig
What I used for many years is a little surplus 27V DC (brush type)instrument motor. I had a machinest at the local hobby store make me a coupler the connect
Re: [Homebrew_PCBs] Drilling
2010-02-01 by cvrcsoaring@earthlink.net
What size drill bits are used for most PC Drilling? Thanks for this thread.. I just went to E-bay and bought a Proxxon Press and AC Drill with free shipping
Re: [Homebrew_PCBs] Drilling
2010-02-01 by Harvey White
... I use the dremel for hand held stuff, where the runout is not important. I avoided the 12 volt proxxon because of the duty cycle. I figured that the AC
RE: [Homebrew_PCBs] Drilling
2010-02-01 by Jim Barnes
Hi, This discussion is immediately interesting. I m at the stage where I need a drill press for PCBs. Because I m already heavily invested in the Dremel
Re: [Homebrew_PCBs] Drilling
2010-02-01 by Harvey White
... Quite true, the proxxon (I use the industrial strength AC powered model) is about 115 or so USD, and the drill stand is about 40. Not cheap, but I ve
Re: [Homebrew_PCBs] Seeking Silicon Chip magazine Nov 2007
2010-01-31 by dhellis @dslextreme.com
I found the article on the Internet http://www.siliconchip.com.au/cms/A_109531/article.html Hope this helps Dan Ellis ... [Non-text portions of this message
Re: [Homebrew_PCBs] Yet another UV idea
2010-01-31 by David Griffith
... Whoops, then I guess I need acrylic instead. -- David Griffith dgriffi@cs.csubak.edu A: Because it fouls the order in which people normally read text. Q:
Re: [Homebrew_PCBs] Yet another UV idea
2010-01-31 by Kerry Wentworth
... Perhaps I am misunderstanding what you are saying. Are you planning on exposing the boards through the polycarbonate sheets? Polycarbonate blocks 100%
Re: [Homebrew_PCBs] Yet another UV idea
2010-01-31 by lists
In article , ... Your eyes (and probably your skin) need protection from the UV, which is why units
Re: [Homebrew_PCBs] Drilling
2010-01-31 by David Griffith
... Because I m not handy enough with wood to do something like that, I m eyeballing something this:
Yet another UV idea
2010-01-31 by David Griffith
How effective are UV exposure units in the form of two 12-inch tubes mounted on a board and suspended over the workbench? The approach I m tinkering with now
Seeking Silicon Chip magazine Nov 2007
2010-01-31 by David Griffith
I found what appears to be well-documented plans for a UV lightbox in the November 2007 issue of Silicon Chip magazine in Australia. Is there anyone on this
Re: [Homebrew_PCBs] Drilling
2010-01-31 by lists
In article , ... I use a PCB drill, part No 546-1494 from http://rswww.com with solid Carbide drills from http//www.megauk.com in a
Re: [Homebrew_PCBs] Drilling
2010-01-31 by DJ Delorie
... http://www.delorie.com/pcb/dremel-stand/
Re: [Homebrew_PCBs] Drilling
2010-01-31 by Stefan Trethan
The 12V proxxon drill is plenty strong for PCB drilling, and costs half of a dremel. I bought one just so I don t have to take the IB/E out of the PCB drill
Re: [Homebrew_PCBs] Drilling
2010-01-31 by Leon Heller
... I use a Minicraft drill and stand - similar to a Dremel. They work OK with tungsten carbide drills and FEC-1 material, but it s easy to break the drills
Re: [Homebrew_PCBs] Drilling
2010-01-31 by Harvey White
... Dremel is a bit sloppy, and there s a bit of runout on the average dremel tool. I use a Proxxon, 20K RPM, and a better collet (steel rather than aluminum).
Re: [Homebrew_PCBs] Drilling
2010-01-31 by Stefan Trethan
You are best off building yourself. The drill travel is very short, so you can get away with a pivoting swing arm. Make it like a triangle with the drill on
Drilling
2010-01-31 by James
So what do you guys use for drilling boards? I have a cheap drill press which is barely adequate for occasional drilling, but there s enough slop in the quill
Re: [Homebrew_PCBs] Peach Vario
2010-01-31 by Simao Cardoso
... Very ingenious and simple your spring load system! Thanks for sharing. You said it s only for toner transfer use, but since you are doing it, almost from
Re: [Homebrew_PCBs] Peach Vario
2010-01-31 by Stefan Trethan
Nice machining indeed. I just want to say that fuser units from old copy machines have a spring loaded roller with quite some travel. So you can save yourself
Re: [Homebrew_PCBs] Peach Vario
2010-01-31 by Volkan Sahin
Nice work Marco. Thanks for sharing. I m also planning to modify a laminator to accept different material sizes. I ll use it for dry film lamination.It is a
RE: [Homebrew_PCBs] Peach Vario
2010-01-31 by Jim Barnes
Lovely machining, but what is it? ... From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of Marko Pavlin Sent: Saturday,
Re: [Homebrew_PCBs] Re: sourcing appropriate UV tubes
2010-01-31 by Harvey White
... You may or may not ever decide to go larger. The 18 inch bulbs are inexpensive and available. You also have the advantage of using the center section
Re: [Homebrew_PCBs] Peach Vario
2010-01-31 by Marko Pavlin
Ups, I forgot to delete some copy/paste-ed text in slovenian language. Just ignore it. M.
Peach Vario
2010-01-31 by Marko Pavlin
I retrofited famous Peach to Peach Vario with variable distance between rollers. I made new side walls and improved gears with additional holders. Here are
Re: [Homebrew_PCBs] Re: sourcing appropriate UV tubes
2010-01-30 by David Griffith
... I don t plan on making anything larger than a letter-sized piece of paper, so, 12 inches is what I m after. ... Reptile UV lights have also been suggested
Re: [Homebrew_PCBs] Liquid Tin
2010-01-30 by DJ Delorie
... It s more of the tin salts, to keep the solution saturated. Eventually that stuff dissolves as you use up the tin and it needs more. ... Definitely re-use
Re: [Homebrew_PCBs] Liquid Tin
2010-01-30 by Harvey White
... Mine is like that, too. Works fine. ... And the chemicals are nasty, so use gloves, avoid fumes, etc. Temperature does have an effect on all chemical
Re: [Homebrew_PCBs] LEDs versus tubes
2010-01-30 by Philip Pemberton
... An LED is a point source of light. Fluorescent tubes emit a more-or-less constant intensity of fairly diffused UV along almost their entire length. Thus
Re: [Homebrew_PCBs] Liquid Tin
2010-01-30 by Brian Lalor
... Mine’s the same way. It seems to work ok, but the precipitate looks very odd to me. ... It is smelly, but I’ve taken to putting some into a clear