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2003-12-25 by mpdickens
My interest in a spray etcher was driven by two issues: 1.) The need to reduce under cutting. Reducing under cuts allows for thinner traces and less space
2003-12-24 by Steve
... Yes, it is a very inexpensive tupperware clone made from very thin plastic. Looks vacuum/blow molded. Not a long term thing, made to be throwaways. Steve
2003-12-24 by Stefan Trethan
... Can you please post a scan or so of a cut pcb? maybe the edge? I used the bungard pcb shear once, (is built like any table shear) and the cut was really
2003-12-24 by mikezcnc
Stan, Your advice to use the metal fabrication tool is ingenious! I would never figure out how that thing cuts anything. I was in the store looking for
2003-12-24 by Stefan Trethan
On Wed, 24 Dec 2003 07:39:02 -0800 (PST), mpdickens ... Thanks, very good idea. I abandoned the idea of a spray etcher because of that, and
2003-12-24 by mpdickens
Hello Stefan, I was able to achieve an air tight seal on my spray etcher using a rubber strip that I purchased at an automobile parts store. The strip that I
2003-12-24 by Leon Heller
... From: bsjoelund To: Sent: Wednesday, December 24, 2003 1:31 PM Subject: [Homebrew_PCBs] Re:
2003-12-24 by bsjoelund
Sealing lid? I assume you are using vertical tank and want to protect the surroundings from splashes etc.. Yes you can use this foil as a protective lid Also
2003-12-24 by Stefan Trethan
On Wed, 24 Dec 2003 13:31:25 -0000, bsjoelund ... I see, and how does this help me with pcb etching? do i cover the tray with it?
2003-12-24 by bsjoelund
... Stefan, It´s the thin (plastic?) foil you use in the kitchen. Bengt
2003-12-24 by Stefan Trethan
On Wed, 24 Dec 2003 13:12:23 -0000, bsjoelund ... I honestly don t know what you are talking of. I assume another tupperware clone ?
2003-12-24 by bsjoelund
... GLADPACK from your kitchen is cheapo and it works! Bengt
2003-12-24 by Stefan Trethan
On Wed, 24 Dec 2003 12:40:09 -0000, Leon Heller ... Thank you for the information but i m not very fond of the idea. It isn t really
2003-12-24 by Leon Heller
... From: Stefan Trethan To: Sent: Wednesday, December 24, 2003 12:26 PM Subject: [Homebrew_PCBs]
2003-12-24 by Stefan Trethan
Hi! I m thinking about my etch tank. Even if i make a vertical tank how can i make a airtight lid? I want to keep the etchant in and prevent too much
2003-12-24 by Mike Cowlishaw
... Since I m cutting the PCM into quite small pieces (around 25mm square) I clamp the pcb to a relatively heavy chunk of wood -- this means the vibration is
2003-12-23 by Stefan Trethan
On Tue, 23 Dec 2003 17:41:15 -0000, aussiedude36 ... I use 600 grit sandpaper and then wipe with with thinner or alcohol. very
2003-12-23 by aussiedude36
Another suggestion, use the green paint at this website http://www.dynaart.com/index.html or www.pulsar.gs or go to your local hobbyist shop and look for a
2003-12-23 by aussiedude36
I have been using this method for a while now with pretty good results. Points to note though, Make sure PCB is really clean, I use a green scouring type pad
2003-12-23 by Stefan Trethan
On Tue, 23 Dec 2003 11:39:42 -0000, Mike Cowlishaw ... I used the same blade as on your picture. thought is is some diamond blade but
2003-12-23 by Mike Cowlishaw
Mentioned before, I think, but another good way to cut PCBs is a table-mounted jigsaw. Probably safer than a circular saw, too. Here s a picture:
2003-12-23 by Ted Inoue
The cutter in your picture does look like a heavier duty model. Mine was a Boston model that is of inadequate design for this purpose. I think people should be
2003-12-22 by wheedal99
... was ... method - ... I normally use 12mil trace-6mil clearance. You can do this without even thinking twice about it and not be very careful during the
2003-12-22 by Steve
Please, guys, no need for me, too or yes, thanks one sentence replies. Especially if you aren t going to trim the original message. The list has a limit on
2003-12-22 by Dave Mucha
... but ... shears, ... seems ... Go for the Home Depot machine. You can buy their blades or ones from the machine shop suppliers in different type blades. If
2003-12-22 by Leon Heller
... From: Ted Inoue To: Sent: Monday, December 22, 2003 12:05 PM Subject: [Homebrew_PCBs] Re: How
2003-12-22 by Rick C.
Very interesting. I didn t know they made a cheaper on than the one I show. I have been using the same cutter for over 30 years without a problem. Almost
2003-12-22 by Ted Inoue
After reading other reports of using a paper cutter to cut PCB s, I tried it myself and totally ruined my paper cutter. It barely knicked the board and instead
2003-12-22 by Stefan Trethan
... But i cut two million (nearly) pieces of paper in normal operation compared to 3 cuts in sandpaper. ... Aluminium foil will carry aluminium oxyde, which is
2003-12-22 by Stefan Trethan
On Sun, 21 Dec 2003 20:42:19 -0500, Deepinder Singh ... Hi! I m new to toner transfer too. Yesterday i started my first smd board with
2003-12-22 by Alan King
... Well think about them from the front. You have the two blades meeting, the edges coming together from the diagonal corners, and a piece of paper between
2003-12-22 by Leon Heller
... From: dangermouse To: Sent: Monday, December 22, 2003 12:48 AM Subject: Re: [Homebrew_PCBs] Re:
2003-12-22 by Leon Heller
... From: dangermouse To: Sent: Monday, December 22, 2003 12:45 AM Subject: Re: [Homebrew_PCBs]
2003-12-22 by Rick C.
You might want to check out the way I ve been cutting boards here: http://www.pic101.com/pcb Rick ... [Non-text portions of this message have been removed]
2003-12-22 by javaguy11111
Thanks to all for the suggestions. I decided to get a cheap tile saw at Home Depot and I am happy to say that it cuts very well and there was virtually no
2003-12-22 by Ben H. Lanmon
... copper ... soldering I just leave the resist on the the copper, Solders fine this way. When finished I spray the copper side with clear lacquer. Never
2003-12-22 by Deepinder Singh
Hi all, I currently use a plotter and a Lumograph pen as the etch resist for making my pcbs. Instead of drilling I just solder the dip components directly onto
2003-12-22 by dangermouse
Perhaps someone can explain how it is possible for friction with aluminum to sharpen (presumably) heat-treated steel. -DM ... From: Stefan Trethan
2003-12-22 by dangermouse
I suppose that the grit of the sandpaper makes a difference. Maybe something like 400 or so? And would wet be better? -DM ... From: Leon Heller
2003-12-21 by Stefan Trethan
... That s similar to what i think.... BUT if it works that way, why the hell do they ever get dull in first place? (ok, ok i know i shouldn t cut copper wire)
2003-12-21 by Alan King
... Well guys you can see it might work, think about the paper seperating and sliding out slightly when cut. That ll be moving out slightly along the face of
2003-12-21 by stan_katz
... but ... shears, ... seems ... I use a machine shop sheet metal shear that I picked up used for $75 USD. You can buy a sheet metal shear /combo (Sheet Metal
2003-12-21 by Stefan Trethan
On Sun, 21 Dec 2003 21:06:50 -0000, Leon Heller ... Be sure that i try it with the next dull scissors i find. (no point in
2003-12-21 by Leon Heller
... From: grantfair2001 To: Sent: Sunday, December 21, 2003 7:52 PM Subject: [Homebrew_PCBs] Re:
2003-12-21 by Markus Zingg
... Maybe that s out of question for you, but I use some sort of magnifiers that you can attach to the head (don t know the propper english term) with good
2003-12-21 by Cristian
Try surgical Binocular Lenses. They are from 2x to 6x. Very light (15 to 80 grams) and attached to a normal glasses. I m short sighted (+2.5) and I use a 4x
2003-12-21 by grantfair2001
I just cut fine or very fine sandpaper with the snips, as if they were scissors. I only make a few cuts each sharpening. I read long ago that this was a good
2003-12-21 by Leon Heller
... From: Stefan Trethan To: Sent: Sunday, December 21, 2003 5:14 PM Subject: Re: [Homebrew_PCBs]
2003-12-21 by Stefan Trethan
I have something like that. It has x10 and x20, the clearance is, lets call it workable. could be more for soldering but better than nothing. I rarely use it,
2003-12-21 by Leon Heller
Most newer devices I m using like FPGAs come in PQFP packages with 0.5 mm spacing so I m looking around for a suitable microscope to help with assembly. A