Re: [Homebrew_PCBs] Re: Double sided boards
2007-04-30 by Dale Chatham
I just drilled two holes for registration, removed burrs and applied the second side, etching both at once.
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RE: [Homebrew_PCBs] Double sided boards
2007-04-30 by Tony Smith
... Run the paper thru the laser a few times before printing the PCB image. Since it can be a bit hard to print a blank sheet, make a small text file, (just a
Re: Double sided boards
2007-04-30 by Andrew
... Many many moons ago when I did punish myself with toner transfer I did double sided as such. Transfer Toner to one side of board only spray a good coat of
Re: [Homebrew_PCBs] Double sided boards
2007-04-30 by Stefan Trethan
... leave one side of the paper longer so you can pinch the two sheets together while you insert the board between them (after aligning against a light). Use a
Re: [Homebrew_PCBs] Double sided boards
2007-04-29 by Bob Menzies
Here is what I do. Make print on regular printer paper of the drill pattern glue it to pc brd with fabric adhesive ( sewing shop ) drill the four corners with
Re: Another wannabe Direct printer
2007-04-29 by juanabba
... HI TO ALL a questions regarding this subject pls: Reading an article one of this days on this subject, the author mentioned we was able to feed ( on a NON
RE: [Homebrew_PCBs] Double sided boards
2007-04-29 by K Wolf
Anyone having trouble with alignment due to expansion of the paper? Whenever I transfer the image onto my boards, its always much larger than when it comes out
Re: [Homebrew_PCBs] Double sided boards
2007-04-29 by Dale J. Chatham
Print both sides on a regular sheet of paper and hold them up to light to see how they register. The registration on many lasers is pretty bad.
Re: [Homebrew_PCBs] Double sided boards
2007-04-29 by Terry Mickelson
... I used to make positive art work for both sides, align the two sides visually, tape the two together along two edges and go from there. Lately, I m
Re: [Homebrew_PCBs] Double sided boards
2007-04-29 by DJ Delorie
... I recently did a double sided board. Since I usually post-process my cad files to include a border around the board (to hold the TT paper down), I simply
Double sided boards
2007-04-29 by fredbutz
I ve been using the laser printer method and ironing the transfers on to single sided boards with no problem. But now I want to do a double sided board. Does
Re: Circuit Cellar article
2007-04-29 by martin_schoenegg
Hi Stefan, ... also with ... I d have done it if You d have asked me before ;-) ... is ... enough toner ... AFAIR there where here a few members that did some
Re: [Homebrew_PCBs] Re: Circuit Cellar article
2007-04-28 by Stefan Trethan
On Fri, 27 Apr 2007 10:30:28 +0200, martin_schoenegg ... Tried the same, same results, same box of useless but expensive steel and carbide tipped pens. ... Now
Re: Circuit Cellar article
2007-04-27 by martin_schoenegg
... Oh guys. I did this 15 years before :-) But the process isn t stable. Very often the tip smears as it reaches earlier drawn traces or pads (T-connections)
Re: Circuit Cellar article
2007-04-26 by crankorgan
http://www.willcoxonline.com/PCBplotting/main.html ... onto ... *____________________________________________________________________________________________*
Re: Circuit Cellar article
2007-04-26 by crankorgan
Just another ripped from the Internet article. Magazines run six months to a year behind. One of the original guys. http://www.qsl.net/ve2emm/pcb/pcbe.html ...
Circuit Cellar article
2007-04-25 by Victor Fraenckel
Here is an interesting article in the May issue of Circuit Cellar magazine. This is the article s banner: Circuit Board Plotting 101. Curt describes how to
Re: Hammermill Office One Glossy Paper
2007-04-24 by izzo47
YEP, curiosity killed the cat, but satisfaction brought him back to life again. Officebella.com $6.71 S/H $6.75.... Thanks for your reply Izzo ... UPS ...
Re: [Homebrew_PCBs] Re: Hammermill Office One Glossy Paper
2007-04-24 by Roland F. Harriston
Izzo47: I had the same dilemma. The cost of the paper was $8.48, and the UPS Ground shipping and handling was $9.22. But 300 sheets will last a long time
Re: Hammermill Office One Glossy Paper
2007-04-24 by izzo47
I ordered the paper online....https://www.officebella.com/ IT cost more to ship then the actual cost of the paper. I also emailed Hammermill and to my surprise
Re: [Homebrew_PCBs] News article: inkjet printing conductors
2007-04-24 by Herbert E. Plett
... why minutes later? wouldn t it work with just two colors mixed dynamically while printing? alternate: why not print the nitrate traces, let dry and dip
Re: [Homebrew_PCBs] News article: inkjet printing conductors
2007-04-24 by Leon
... From: Thomas P. Gootee To: Sent: Tuesday, April 24, 2007 5:26 AM Subject: [Homebrew_PCBs] News
News article: inkjet printing conductors
2007-04-24 by Thomas P. Gootee
Some of you might find this interesting: http://www.newscientisttech.com/channel/tech/dn11632-modified-ink- printer-churns-out-electronic-circuits.html It s an
Re: [Homebrew_PCBs] Re: Hammermill Office One Glossy Paper
2007-04-23 by Roland F. Harriston
Phil: Thanks for the update. I suspect that a lot of laser printer transfer problems originate with the characteristics of the toner being used. Not all toners
Re: [Homebrew_PCBs] Re: stripping wirewrap wire
2007-04-23 by Roland F. Harriston
As I recall my ancient days of doing wirewrap by hand, I can t remember that I had very much trouble stripping the wire, using the correct tool. Without the
Re: Hammermill Office One Glossy Paper
2007-04-23 by pgdion1
... website. ... I didn t see it many other places either (any other actually). FYI - when I did order it from Sam s, it was part of larger order but the paper
Re: stripping wirewrap wire
2007-04-23 by pgdion1
... One source for this type of wire is Deaborn searies SP / SPN wire. It s decribed as solderable meaning you don t have to remove the insulation before
Ocean State Electronics warning
2007-04-23 by Ted Bruce
I ve dealt with OSE over the years, and they have been slow in shipping. Now, it s gone beyond that. I hplaced an order on 2/27/07, had it confirmed, and
Re: [Homebrew_PCBs] Re: Spray Etching
2007-04-22 by Adam Seychell
... Spray etching has the advantage of etching more downward and less sideways. There is no other way of achieving that with non-spray etch. Gravity can t help
Re: [Homebrew_PCBs] Re: Spray Etching
2007-04-22 by Stefan Trethan
On Sun, 22 Apr 2007 14:00:30 +0200, Russell Shaw ... Maybe including the resist we want, considering many of us use
Re: [Homebrew_PCBs] Re: Spray Etching
2007-04-22 by Russell Shaw
... Bubble and foam etchers are a very gentle agitation and etch everything off in most cases. Many times however, traces of copper are left because of
Re: [Homebrew_PCBs] Re: Spray Etching
2007-04-22 by Stefan Trethan
... CuCl of reasonable strength in a bubble etcher is no problem at all, indoors with no additional ventilation. Neither is FeCl i would presume. I used to run
Re: Spray Etching
2007-04-22 by James McGee
Sorry, I figured everyone had taken care of their ventilation problems. I cant etch without proper ventilation, I want to live ........... one breath of the
Re: [Homebrew_PCBs] Re: stripping wirewrap wire
2007-04-22 by Peter Harrison
... Excellent. I will look some up. Pete
Re: [Homebrew_PCBs] Re: stripping wirewrap wire
2007-04-22 by Peter Harrison
... Oh yes. That is so simple and makes it much easier. now slightly abashed at not having thought f that. Pete
Re: [Homebrew_PCBs] Re: Spray Etching
2007-04-22 by Stefan Trethan
On Sat, 21 Apr 2007 22:15:16 +0200, jcarlosmor ... The reason is it s old news, several of us have been there, done that, tried that,
Re: table could be usefull for pcb drilling:
2007-04-22 by rmustakos
... Well, if I could find the cheap ones, I would. And if I had enough money to think the ones I did find were cheap, I could be sending all my boards out to
Re: stripping wirewrap wire
2007-04-22 by sethreeder
I ve always read that wire wrap wire is designed to be soldered without stripping.I just run it through the flame of a lighter or match. The plastic just burns
Re: [Homebrew_PCBs] Re: stripping wirewrap wire
2007-04-22 by Roland F. Harriston
Andrew: Thanks for the information. After I posted the message, I went to the Essex Wire Co. website and found that the solderable magnet wire I mentioned is,
Re: stripping wirewrap wire
2007-04-22 by Andrew
... Solderable Polyester Coated Wire. There is also another type I sell called ButylBond which is a solderable polyester insulation with a butyl heat activated
Re: Spray Etching
2007-04-22 by pcb.easy
Snip ... Most Home-brew-ers like to KISS or Keep It Simple Sam. A simple bubble etch tank with an aquarium tank air pump using a 300ml etch solution of 1 part
Re: [Homebrew_PCBs] Re: stripping wirewrap wire
2007-04-22 by Roland F. Harriston
If you need to place jumper wires on the PCB and you have to have the jumpers insulated, there is a type of magnet wire that has a type of insulation that
Re: [Homebrew_PCBs] stripping wirewrap wire
2007-04-22 by Bryan Pope
... If you are using Radio Shack s 30-gauge wrapping wire, then just get their wire wrapping tool:
Re: stripping wirewrap wire
2007-04-22 by Andrew
... I find the stripper stored in the back of my little hand-wrap tool to be fine for getting off 1mm or so of insulation from the wire. The trick is to slide
Re: [Homebrew_PCBs] Re: Spray Etching
2007-04-21 by guja
you dont need spray etcher to make such boards. it is much easier to make tank that uses foam . you need tank (with angled board inside) , low pressure pump,
Re: [Homebrew_PCBs] Re: Spray Etching
2007-04-21 by Adam Seychell
... You might have a few ventilation problems. Remember , your not spraying water on the garden. Such volume of air will force very undesirable amounts of
Re: Spray Etching
2007-04-21 by electrophilip
... building ... I am not interested in knocking anyones design, I have a lathe, mill & most other tools needed to construct hobby stuff. I am interested if
Re: Spray Etching
2007-04-21 by James McGee
Maybe I m a little out of sync with the conversation, but my first thoughts involve air and suction. like a siphon feed on paint guns and sand blasters. a
Re: [Homebrew_PCBs] Re: Spray Etching
2007-04-21 by Adam Seychell
... I built a spray etcher, admittedly it was a very substantial hobby project. It was about 3 years ago when I had my first attempt. You need tools like a
Re: [Homebrew_PCBs] stripping wirewrap wire
2007-04-21 by Roland F. Harriston
I m an old-timer, so I probably do things a lot differently than is common practice nowadays. Whenever I need to patch up a trace on one of my homebrew PCB s,