rzh@lll-lcc.llnl.gov (Roger Hanscom) (11/12/88)
Will somebody out there offer some sage advice about making
one-sies printed circuit boards?? I've tried some *REALLY*
strange ways to do this, but none of them worked out very
well. One of the more difficult things for me to do is drill
the %$*^&@ things. If there are lots of ICs on the board,
drilling for 14/16/24 pin dips becomes nearly impossible to
do well. Keep in mind that I have a limited budget to work
with here! Anyone know of a firm that will make boards from
artwork for a reasonable price?? Do these dry tranfer etch
patterns really work?? (but then you're stuck with the
drilling problem again!) HELP.
Roger
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or rzh%freedom.llnl.gov@lll-lcc.llnl.govphillip@bartal.CRLABS.COM (Phillip Vogel) (11/13/88)
> From: rzh@lll-lcc.llnl.gov (Roger Hanscom) > Date: 12 Nov 88 02:19:48 GMT > Organization: Lawrence Livermore Labs, LCC, Livermore Ca > > Will somebody out there offer some sage advice about making > one-sies printed circuit boards?? I've tried some *REALLY* > strange ways to do this, but none of them worked out very > well. One of the more difficult things for me to do is drill > the %$*^&@ things. If there are lots of ICs on the board, > Roger A trick that I use often (for adding chips to existing boards) is to use a piece of perf board as a drilling template. the holes come out lined up just fine. -- Phillip M. Vogel - Bartal Design Group, Inc. - Englewood, NJ 201-567-1343 201-569-7667 ext.239 800-631-2524 ext.239 DOMAIN: phillip@bartal.CRLABS.COM UUCP: killer!crlabs!bartal!phillip DISCLAIMER: Hell, I OWN the company !
ornitz@kodak.UUCP (barry ornitz) (11/15/88)
In article <2101@lll-lcc.llnl.gov> rzh@lll-lcc.llnl.gov (Roger Hanscom) writes: > >Will somebody out there offer some sage advice about making >one-sies printed circuit boards?? I've tried some *REALLY* >strange ways to do this, but none of them worked out very >well. The best book I have seen on printed circuit boards for the hobbyist and experimenter is "Electronic Prototype Construction" by Stephen D. Kasten. This $18 book covers everything from wire wrap techniques to simple multi- layer boards, photo resists to edge connector plating, and much more. Steve is very practical in the techniques discussed, but the results are professional even if you are on a limited budget. The book is published by Howard W. Sams - ISBN: 0-672-21895-X. BTW, Steve and I work in the same laboratory. He is also a great ragtime pianist, but unfortunately looks just like the picture on the back of the book! ;-) Barry WA4VZQ ----------------- | ___ ________ | | | / / | | Dr. Barry L. Ornitz UUCP:..rutgers!rochester!kodak!ornitz | | / / | | Eastman Kodak Company | |< < K O D A K| | Eastman Chemicals Division Research Laboratories | | \ \ | | P. O. Box 1972 | |__\ \________| | Kingsport, TN 37662 615/229-4904 | | -----------------
torkil@psivax.UUCP (Torkil Hammer) (11/17/88)
#Will somebody out there offer some sage advice about making #one-sies printed circuit boards?? I've tried some *REALLY* #strange ways to do this, but none of them worked out very #well. I have used a product called Veroboard for prototypes and one-of-a-kind production projects. Veroboard looks like perfboard but has copper strips glued on the back side. A nifty hand tool cuts the strips. Since all strips are 'horizontal' you must make vertical jumpers (e.g. made from cut resistor wires) on the front side, together with components. The resulting design is very pretty and can be made very compact and well organized into functional blocks. Some side advantages are that stray capacitance is low and every point is readily accessible for oscilloscope probes. The whole process of prototyping can be done with low tech tools (hand tools and soldering iron) and requires no training, so even a research scientist is able to do it :-).. Veroboard comes in 2 qualities, a standard made from what we called 'pertinax' [a plastic reinforced fiber] and a deluxe made from fiberglass. The deluxe cost 2~3 times the standard but is worth it for prototyping. It is also better in the high frequency end. There are other brand names than Veroboard, but at that time (1978) they were clearly inferior. You get what you pay for, and the most of the difference was that the strips came unglued on cheaper boards after just a few changes. All this was done in Denmark. I have not seen this kind of product in USA. I really miss it. Any leads are appreciated. torkil ;----------------------------------------------------------------------- ; Opinions expressed herein are void where prohibited by law. ;-----------------------------------------------------------------------
henry@utzoo.uucp (Henry Spencer) (11/18/88)
In article <1481@kodak.UUCP> ornitz@kodak.UUCP (barry ornitz) writes: >The best book I have seen on printed circuit boards for the hobbyist and >experimenter is "Electronic Prototype Construction" by Stephen D. Kasten. >... Howard W. Sams - ISBN: 0-672-21895-X. Second the recommendation. The book doesn't talk about some of the newer and less conventional hobbyist techniques, but it's great otherwise. -- Sendmail is a bug, | Henry Spencer at U of Toronto Zoology not a feature. | uunet!attcan!utzoo!henry henry@zoo.toronto.edu
sukenick@ccnysci.UUCP (SYG) (11/18/88)
>I have used a product called Veroboard for prototypes and one-of-a-kind >production projects. Veroboard looks like perfboard but has copper >strips glued on the back side. A nifty hand tool cuts the strips. Vector and Global Specialists both make boards similar to the above. Digi-key and other companies carry it. All strips are tinned for easy soldering and traces may be cut with an X-acto knife, razor blade (single :-), kitchen knife, meatcleaver, blunt screwdriver,eh, and if you're really desperate, a hot soldering iron held too long in one spot :-) Anyway, you can get the thing from design to completion very fast. A nicer system for finished products consists of a plastic board and copper traces of various traces and sizes that you glue on (and drill holes for). The end product looks like a pro circuit board ! (can be found in Newark catalog)
bobw@ncoast.UUCP (Bob Weinberg) (11/19/88)
In article <2101@lll-lcc.llnl.gov> rzh@lll-lcc.llnl.gov (Roger Hanscom) writes: > >Will somebody out there offer some sage advice about making >one-sies printed circuit boards?? I've tried some *REALLY* One of the tricks we use in our lab for quickies is to go to Radio Shack and buy a cheap kit. You can do a small board in a half an hour. As to the tough part (drilling) we simply take a piece of .1 spacing perf board and tape it over the target board. You drill through this as a template with a dremil tool or a drill press which then keeps the hole spacing correct. Its sometimes easier to drill before you put the trace resist on. Hope this helps. It looks crude on the tape size, but great on the component side and sure saves $$ and days when you need the next step over a proto board. -- Robert L. Weinberg ...decvax!mandrill!ncoast!bobw Tridelta Industries, Inc. ...decvax!mandrill!ncoast!tdi2!bobw V.P. Technology