Macro photography
2003-07-02 by Leon Heller
The macro facility on my digital camera (Fuji 2400Zoom) only lets me go down to 10 cm. I thought I d experiment with a cheap 14x magnifier held in front of the
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Re: [Homebrew_PCBs] Pre-coated PCB stock shelf-life
2003-07-02 by Mike Putnam
... had ... very ... than ... No, It is the positive etch. It does, however have a sheet of plastic film that you have to peel from the positive etch side of
Re: [Homebrew_PCBs] Pre-coated PCB stock shelf-life
2003-07-02 by Leon Heller
... From: Mike Putnam To: Sent: Wednesday, July 02, 2003 1:17 AM Subject: Re: [Homebrew_PCBs]
Re: [Homebrew_PCBs] Pre-coated PCB stock shelf-life
2003-07-02 by Leon Heller
... From: adam Seychell To: Sent: Tuesday, July 01, 2003 11:40 PM Subject: Re: [Homebrew_PCBs]
Re: [Homebrew_PCBs] Re: Drill files for PCB
2003-07-02 by Mike Putnam
... Tom, My program just uses a data file which is standard information in the xx , xx , xx format. The
Re: [Homebrew_PCBs] Pre-coated PCB stock shelf-life
2003-07-02 by Mike Putnam
... buying ... of ... technique. Leon, Evidently it depends upon the chemical used to coat the boards. There are different chemicals and I cannot tell you what
Re: [Homebrew_PCBs] Pre-coated PCB stock shelf-life
2003-07-01 by adam Seychell
I can only have experience with negative dry film resists. Generally the longer its been on there the more difficult it is to remove an invisible residue
Re: [Homebrew_PCBs] Pre-coated PCB stock shelf-life
2003-07-01 by Neil
... Oops. Guilty. Guess I had always wondered, but never got around to asking, and just jumped on the opportunity to ask when I saw the other post. Sorry.
Re: [Homebrew_PCBs] Pre-coated PCB stock shelf-life
2003-07-01 by Stefan Trethan
i had some REALLY old clad here. it was several years old. with longer exposure and cleaning of the cover tape residue with pausklar it worked. but i can t
Re: [Homebrew_PCBs] Pre-coated PCB stock shelf-life
2003-07-01 by Stefan Trethan
please use the search function - we discussed this not too long ago. 2 methods: dry film (i don t know about) liquid resist basically you need the laquer .
Re: [Homebrew_PCBs] Pre-coated PCB stock shelf-life
2003-07-01 by Neil
Speaking of which, anyone here know what process/materials I need to sensitize bare copper-clad boards, for positive-exposure? Cheers, -Neil.
Pre-coated PCB stock shelf-life
2003-07-01 by Leon Heller
It s a good idea to use the pre-coated PCB material fairly soon after buying it, as the shelf-life is limited. I find I get rather poor results when using
File - monthly.txt
2003-07-01 by Homebrew_PCBs@yahoogroups.com
Monthly Reminder, please read: Subject lines: Remember to change the subject line if you are straying from the original thread. Please change the subject line
Re: Drill files for PCB
2003-07-01 by twb8899
Mike, I am very interested in this subject since I want to convert several table top drill-router machines to PC control. Does your machine read directly from
Re: Drill files for PCB
2003-07-01 by Dave Mucha
... their boards. My machine is not setup for milling. I have only used it for drilling holes in the boards and thus wrote my own program to do so. At the
Drill files for PCB
2003-07-01 by Mike Putnam
Someone was asking what types of software people use to manufacture their boards. My machine is not setup for milling. I have only used it for drilling holes
Re: [Homebrew_PCBs] Re: cnc pcb engraver software?
2003-06-30 by Ron Amundson
The board house does not use the gerber file to drill your boards. In the package, I suspect you sent them an excellon or NC drill file. This file can be
Re: cnc pcb engraver software?
2003-06-30 by ben_englund
For more on the software side, you could try the CAD_CAM_EDM_DRO group or USERS_BobCad_com group.
Re: [Homebrew_PCBs] Re: cnc pcb engraver software?
2003-06-30 by Mike Putnam
... The board house does not use the gerber file to drill your boards. In the package, I suspect you sent them an excellon or NC drill file. This file can be
Re: [Homebrew_PCBs] Re: Inkjet Transparencies
2003-06-30 by Mike Putnam
... I totally agree. I spent a great amount of time setting up the height and exposure time of my system when I first put it together knowing it would save me
Re: Re: Re: cnc pcb engraver software?
2003-06-30 by IMService
... Ron, for Gerber/Excellon to G-code or DXF $100 http://www.imsrv.com/deskpcb For same, plus serial port machine controller (step and direction), DXF
A labor of love, was Re: cnc pcb engraver
2003-06-30 by crankorgan
Steve, I designed and built a simple plotter with power so people could Scratch and Etch boards. Then the floor wax idea hit. So I dropped the ball. One year
Re: PCB Design service and custom enclosures?
2003-06-30 by ghidera2000
I emailed them about my project. Cool one-stop-shopping site :D The design services would be great but The shipping and customs fees for enclosures would
A labor of love, was Re: cnc pcb engraver
2003-06-30 by Steve
Eh, I wasn t worried, it isn t like you are spamming. Pretty much anything made one-of is going to cost -way- more in time than would be worth it if you were
Moderator clarification, was Re: cnc pcb engraver
2003-06-30 by crankorgan
Steve, I went back and looked at my first message. It looks more like an ad than what I was trying to say. What I wanted to say is selling a built machine is
Moderator clarification, was Re: cnc pcb engraver
2003-06-30 by Steve
I understand that John chooses not to sell his plans outside of USA and Canada. He is within his rights. This is apparently what he was refering to as off
Re: [Homebrew_PCBs] Re: Inkjet Transparencies
2003-06-30 by Neil
[ Yep, I m resurfacing after some time :-) ] Instead of transparencies, I usually use Avery 3276 Inkjet Decals for Windows (the traditional glass Windows, not
Re: Inkjet Transparencies
2003-06-30 by rolanyang
Hrm.. there is a pattern developing here. I get decent results from my laser printer - which happens to be an old HP Laserjet //. Many of the newer laser
Re: [Homebrew_PCBs] Re: Inkjet Transparencies
2003-06-30 by Markus Zingg
... I also get good results with the laser/tracing paper combo BUT, it also depends on the method used and that s IMHO the reason why so many people post even
Re: [Homebrew_PCBs] Re: Inkjet Transparencies
2003-06-30 by Russell Shaw
... Even an epson will give crap results if the ink isn t compatible with the film. The genuine epson transparencies absorb the ink *into* the surface and the
Re: [Homebrew_PCBs] Re: cnc pcb engraver software?
2003-06-30 by Ron Amundson
John, I too looked at your site, very interesting. We ran a 1/4-20 stepper drive shaft with low cost bearings in our lab for years. It became obsolete way
Re: [Homebrew_PCBs] Re: Inkjet Transparencies
2003-06-30 by Leon Heller
... From: Ted Inoue To: Sent: Monday, June 30, 2003 3:34 AM Subject: [Homebrew_PCBs] Re: Inkjet
Re: [Homebrew_PCBs] Re: Inkjet Transparencies
2003-06-30 by Leon Heller
... From: Adam Seychell To: Sent: Monday, June 30, 2003 4:17 AM Subject: Re: [Homebrew_PCBs] Re:
Re: [Homebrew_PCBs] Re: Inkjet Transparencies
2003-06-30 by Hans Wedemeyer
As Mike said the pro. shops do not use the office printers (Laser or ink jet) to make the artwork. In fact the artwork my favorite board shop uses is a light
Re: [Homebrew_PCBs] Re: Inkjet Transparencies
2003-06-30 by Adam Seychell
... That would be a extremely useful reference to use. I was planning on making a web page dedicated to this very topic, but hadn t had the time. Ideally some
Re: Inkjet Transparencies
2003-06-30 by Ted Inoue
Just ran some test on the HP and it s much better than the other laser I d used. In fact, quality appeared on par to the best inkjets. I ve also added a
Re: Inkjet Transparencies
2003-06-30 by Ted Inoue
Exactly. The specific transparency film makes ALL the difference. I use Pictorico premium overhead transparency film and it is absolutely superb. Printing with
Re: Inkjet Transparencies
2003-06-30 by Steve
And there is the problem of shrinkage due to the heat of the fuser. Uneven shrinkage seems to be the rule, which is bad because you can t just scale everything
Re: cnc pcb engraver
2003-06-30 by Steve
I misunderstood your comment, too. I understand what you are saying now, and yes your discussions about payment methods should go off list. However most of his
Re: cnc pcb engraver
2003-06-30 by Steve
... machine ... Besides, -I m- the moderator. ; ) Steve Greenfield
Re: [Homebrew_PCBs] Re: Inkjet Transparencies
2003-06-30 by Adam Seychell
I ve seen many poor prints from inkjets too. The trick is to use the corrct ink/printer and transparency combination. The differences between the worst and the
Re: Inkjet Transparencies
2003-06-30 by rolanyang
It s not that I ve had amazing success with laser, but I haven t ever been able to make a quality transparency with the inkjet (Epson 800). It may have been
Re: [Homebrew_PCBs] Re: Inkjet Transparencies
2003-06-29 by Mike Putnam
... Professionals do not use printers for their artwork. My local screen printer does not even own an inkjet printer. These guys use expensive equipment that
Re: [Homebrew_PCBs] Re: Inkjet Transparencies
2003-06-29 by adam Seychell
I have tried a few good quality laser printers and never had any success. Its well known that lasers cannot sufficiently heat up the mylar plastic film to
Re: cnc pcb engraver
2003-06-29 by crankorgan
Mike, I do the outlines in TurboCAD. I put a dot in each pad. During milling the bit leaves a starter hole.I then use a Dremel Drill press to finish the holes.
Re: [Homebrew_PCBs] Re: cnc pcb engraver
2003-06-29 by Mike Putnam
... Didn t offend me. Seemed more on topic than some of the other things I have seen exhausted on this site for two weeks at a time. One question, though...
Re: cnc pcb engraver
2003-06-29 by crankorgan
Mike, I ment the ones about payments. He tracked down my website. I did not mention it. If you go back through the messages you will see I talked about milling
Re: cnc pcb engraver
2003-06-29 by ben_englund
... Enco also sells the nuts to go with them, otherwise a guy could cast one from brass or something.
Re: cnc pcb engraver
2003-06-29 by crankorgan
Ben, Make sure you can find the tap before you buy the threaded rod. John
Re: cnc pcb engraver
2003-06-29 by ben_englund
My reasons for wanting to use acme thread rod is that the nut binds less on it under load and so it should last longer ....could be wrong.....thought i d do