Re: OxyClean or Hydrogen peroxide ?
2004-04-28 by Richard Mustakos
Dave Did you try this as a rejuvenator, or just for starters? When did it outgas, when they were mixed, when you were etching, or both? If it yields H2O2
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Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser
2004-04-28 by Roy J. Tellason
... Oh really? Tell us more about it? The latter, in particular, I d be real interested in hearing a bit about just how that works, and with what kind of
Re: [Homebrew_PCBs] wire wrap by machine:
2004-04-28 by Stefan Trethan
On Wed, 28 Apr 2004 10:20:26 -0700 (PDT), Jim Miller ... Jim, i can only give one advice, RUN, RUN AS FAR AS YOU CAN AND AS FAST AS YOU
Re: [Homebrew_PCBs] Re: Software Recommendations
2004-04-28 by Stefan Trethan
... Of course, sorry, i meant that too.. I too make 2-layer boards with no plating just fine... Somehow in my head multilayer was linked to more than 2 I
Re: Direct Printing Etch Resist - tractor feed of pcbs
2004-04-28 by Steve
... wrote: ... search ... (108 ... But the tractor feed part of that is just a backing paper. The plastic refered to there is the label that
Re:Inexpensive source for solder paste?
2004-04-28 by Richard Mustakos
Mark I ve got a few contacts (sales people - you know, close personal friends ) that I m checking with. Found them looking for water soluble fluxes for
Re: Direct Printing Etch Resist - tractor feed of pcbs
2004-04-28 by Dave Mucha
... but ... across all ... were ... middle. The ... search ... (108 ... on ... board ... inks for etch resist?) ... handle fanfold ... that sort of hardware
Re: Direct Printing Etch Resist - tractor feed of pcbs
2004-04-28 by Richard Mustakos
Roy I remember seeing a setup (I don t remember what it was feeding, but it was flat plates of some kind) where the plates (pcbs for us) had 2 plastic strips
wirewrap by machine
2004-04-28 by Jim Miller
had many boards done by automated wrappers in the 70 s. they usually also did an automated continutity and short test. usually required a handwritten wiring
Re: solder paste - cnc dispenser
2004-04-28 by Dave Mucha
... as ... need ... and ... Ok, Pleeeease post stuff on your machine ! even if you don t want to give up the details in any large degree. pictures ????
Re: Software Recommendations
2004-04-28 by Dave Mucha
... really ... yup. a single layer board has Top copper layer top paste layer top solder mask layer top silkscreen layer drill map layer drill hole
Some clarity and understanding was Re: mechanical etching
2004-04-28 by Dave Mucha
... since ... Gee, I thought that was common knoledge. If you want the history, start with my post on 2788. I asked how many people on this list want the
Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser
2004-04-28 by Stefan Trethan
Well, Russel, maybe we can all stop bickering and rather use the valuable answer time for generating useful posts. You say you have made such a machine, tell
Re: Inexpensive source for solder paste?
2004-04-28 by javaguy11111
Try contact east. They have Kester no clean and others at good prices.. As far as longevitiy, I have had my tube for over a year and it works just fine. I do
Re: [Homebrew_PCBs] Re: cnc solder paste - software
2004-04-28 by Stefan Trethan
... I could do simple file editing, converting, i have done this before with java and c. Would need to look up on graphic user interface, maybe someone wants
Re: [Homebrew_PCBs] Re: back to solder paste - cnc dispenser - G-code
2004-04-28 by Stefan Trethan
When i wrote it is not completely correct that i know nothing about gerber i meant that i have actually learned to program a cnc mill a few years ago. I do not
Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser
2004-04-28 by Russell Shaw
... I happen to have designed the dispenser and pick-place machine i want. I would have found such discussions interesting here. ... But what fun is a pcb
Re: [Homebrew_PCBs] OxyClean or Hydrogen peroxide ?
2004-04-28 by Stefan Trethan
... Didn t that go the solution for pollution is dilution ? No idea about the chemical reaction - sure others know better. ST
Re: cnc solder paste - software
2004-04-28 by Dave Mucha
ballendo Okay, there s more info in those short lines than you think. For ...
Re: [Homebrew_PCBs] Inexpensive source for solder paste?
2004-04-28 by Stefan Trethan
... maybe ebay... how big are the chances that you can make your own? maybe one could produce fine solder powder by electroplating? ST
Re: [Homebrew_PCBs] Re: Software Recommendations
2004-04-28 by Stefan Trethan
On Wed, 28 Apr 2004 08:03:11 -0400, Roy J. Tellason ... these are drawing layers i think, not board layers. you have one for part outline, one for place
Re: solder paste - cnc dispenser
2004-04-28 by Dave Mucha
... The whole question arose when a member posted that this is off topic, and I agreed. Solder paste dispenser mechanical design is not even close. Mechanical
Re: back to solder paste - cnc dispenser - G-code
2004-04-28 by Dave Mucha
Much simplier. A note is that the G0 is a G and a ZERO, not the letter O My CNC software needs G00 (G-zero-zero) but this is still a simplier way. A note
Re: OxyClean or Hydrogen peroxide ? - more data
2004-04-28 by Dave Mucha
... of ... Outside, ... a little more google and this came up. http://experts.about.com/q/2460/2671970.htm sodium percarbonate/sodium carbonate mix which is a
Notes from the List-Owner re what is and is not on topic
2004-04-28 by Steve
Regarding 90% of posts being about chemicals: yes, that was a thread for quite a while as it covers quite a large territory and most here are not chemists and
Re: [Homebrew_PCBs] wire-wrap
2004-04-28 by Russell Shaw
... This was done by an australian company to a high degree of sophistication. The wiring was pressed into epoxy about 1.6mm thick. Reliability problems were a
OxyClean or Hydrogen peroxide ?
2004-04-28 by Dave Mucha
The material Data Safety Sheet for Oxyclean lists it as Potassium Hydroxide. http://www.melrosechem.com/english/msd_eng/hs0853.pdf I did a squirt of Muriatid
Re: wire-wrap
2004-04-28 by Phil
... built ... gates...! Given huge design time and 12 week turn around from tape-out to first silicon they wanted to make sure the design was correct - errors
Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser
2004-04-28 by Russell Shaw
... CNC etching is just as OT as laser printer toner transfer and printer/toner/inkjet/film discussions. Printers are CNC machines too. ... The similar
Re: [Homebrew_PCBs] Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)
2004-04-28 by Alexandre Souza
... I saw it with my eyes, that the earth may eat. Someone (I was in a company doing a job) modified an epson printer - that old 600 ones - to print a circuit
Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)
2004-04-28 by Steve
... I wish -I- had thought to package an Epson with a CD tray, call it a different name, and sell it for 3x the price... ; ) That sure looks like an Epson.
Inexpensive source for solder paste?
2004-04-28 by Mark
Was this ever answered? For the few things that I want to do, I m unwilling to pay Future/Active the $$ they want for a package that will expire before I use
Re: [Homebrew_PCBs] Re: Software Recommendations
2004-04-28 by Roy J. Tellason
... That layers part caught my attention -- is multilayer stuff really practical in a homebrew context?
Re: [Homebrew_PCBs] Re: mechanical etching
2004-04-28 by Roy J. Tellason
... Not too likely. I ve scrapped enough stuff over the past several decades that I think it unlikely that I ll run out of parts any time soon. As long as
Re: [Homebrew_PCBs] Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)
2004-04-28 by Roy J. Tellason
... This reminds me of why one of the numerous dot-matrix printers I ve used was my favorite -- the Oki 92 I still have. Not only was it a fairly good
Re: [Homebrew_PCBs] Re: wire-wrap
2004-04-28 by Roy J. Tellason
... I m not real sure about how you d handle this part. ... It couldn t be very big, as close as those pins are to each other. I guess that s why the ends of
Re: [Homebrew_PCBs] Thoughts from the List-Owner Re: solder paste - cnc dispenser
2004-04-28 by Roy J. Tellason
... Yeah. In spite of however much somebody may write about what they ve built, pictures sure *do* make it a lot easier to get a grip on things...
Re: [Homebrew_PCBs] wire-wrap
2004-04-28 by Roy J. Tellason
... You had to strip the wires yourself? Yikes. That s one of the more time-consuming portions of wire-wrapping... ... I don t count computers as additional
Re: Software Recommendations
2004-04-28 by ballendo
Hello, Since you ve not listed those which don t meet your needs, I can t be sure you ll find this helpful. Try Circad. Extremely fast and easy to use. Library
OT Thoughts from the List-Owner Re: solder paste - cnc dispenser
2004-04-28 by ballendo
My apologies to the Homebrew PCB membership. Seems Dave has an axe to grind and has decided to do so publicly. Here s my public response... Dave, Thank you for
Re: [Homebrew_PCBs] Some clarity and understanding was Re: mechanical etching
2004-04-28 by Stefan Trethan
... Ya didn t know that ;-) Thought that was clear enough..... I thought about this file editing for paste dispensing stuff... I think i am perfectly capable
Some clarity and understanding was Re: mechanical etching
2004-04-28 by ballendo
... Hello, This comment (above) caused me to do a quick check of something since I am a member of the mentioned group... And sure enough, Dave Mucha has the
Re: [Homebrew_PCBs] cnc solder paste (was: where to discuss what)
2004-04-28 by Stefan Trethan
... So you say: I have to program either a tool that converts gerber to dispenser file with 3d data or i have to edit the g-code myself and add the macros.
Re: mechanical etching
2004-04-28 by ballendo
... wrote: ... Masking tape. By far the most common, and the most reliable, IMO. The registration is done with 1/8 or 3mm pins. You use
Re: back to solder paste - cnc dispenser
2004-04-28 by ballendo
Here s a simpler way. Use search and replace in a word processor to put a G0 in front of each X. (Search for X and replace with G0 X ) Put the G81 canned
Re: [Homebrew_PCBs] Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)
2004-04-28 by Cristian
Are you sure it prints on copper and the ink is etch-resist? Cristian ... Outgoing mail is certified Virus Free. Checked by AVG anti-virus system
Re: wire-wrap
2004-04-28 by ballendo
Hello Roy, As a designer, builder and user of CNC machines for a couple decades now, I d say it s a no-starter. For all the reasons the previous replies have
Re: [Homebrew_PCBs] Software Recommendations
2004-04-28 by Stefan Trethan
On Tue, 27 Apr 2004 23:58:59 -0700, Michael Johnston ... They have offered one with the 9.1 version. It seems they no longer offer student licenses, this is
Re: solder paste - cnc dispenser
2004-04-28 by ballendo
Dave, Here s a copy of the FIRST line ON the home page: Making, etching, soldering printed circuit boards yourself. See that third word there... Next, The list
RE: [Homebrew_PCBs] Software Recommendations
2004-04-28 by Michael Johnston
Thanks, But, for $6,000 OrCAD would need to create my schematics and boards layouts for me (without my interaction), order the boards, walk my dogs (and scoop)