Re: [Homebrew_PCBs] Double sided boards and feed throughs
2009-10-10 by Jack
a bit more costly, but use test point pins and solder both sides. And you get a nice place to attach a probe if you like.
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Re: [Homebrew_PCBs] Double sided boards and feed throughs
2009-10-09 by Harvey White
... 1) eyelets for vias, takes a bit of space. 2) vias as stitched through wire. Nasty to line up depending on VIA size. Harvey
Re: [Homebrew_PCBs] Using Eagle
2009-10-09 by Harvey White
On Fri, 9 Oct 2009 14:39:27 -0500, you wrote: Look at the autorouter. Note that there are settings for the top and bottom layer, typically _ and |. You want
Re: [Homebrew_PCBs] Double sided boards and feed throughs
2009-10-09 by leon Heller
... From: D S To: Sent: Friday, October 09, 2009 7:00 PM Subject: [Homebrew_PCBs] Double sided boards
Re: Double sided boards and feed throughs
2009-10-09 by roycepipkins
Nearby vias are what I do. One fellow mentioned using thin wire and stitching the vias with one long wire thread. He then goes back, solders on both sides
Using Eagle
2009-10-09 by AD5VJ Bob
I downloaded and am trying to use Eagle CAD program for my first board. I went to http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=109 and did
Double sided boards and feed throughs
2009-10-09 by D S
Greetings to all, I m new to the board but eager to learn. I m embarking on a rather ambitious project that will probably see me making around 65-70 PCB s when
Re: Success report
2009-10-09 by r_twiddy
... Hi sage, I searched the messages for the link you mentioned.. http://pacificsun.ca/~robert/pcb/cucl.htm Pretty good ... And it appears to be down.. Do you
Re: [Homebrew_PCBs] Re: Press and Peel Paper
2009-10-08 by Derward Myrick
Bob, I think a lot of people have had the same luck as Dave and some had good luck. I use paper from Royal Brites. This is not very good as Ink Jet Color
Re: Press and Peel Paper
2009-10-08 by Dave
Hi there My experience with PnP wasn t that good. This may be down to technique on my part but never the less I tried adjusting my irons temp to solve one
Press and Peel Paper
2009-10-08 by AD5VJ Bob
As you all know I am new to this whole process and therefore have gone to Utube and uncovered many of what seem to be good videos of pcb manufacturing. One
Success report
2009-10-07 by davesage12@rogers.com
I have to thanks the members of this group (and possibly others) for two ideas. First is the use of HP presentation paper for toner transfer rather than the
Re: [Homebrew_PCBs] Double Sided boards - Was Laser Printer
2009-10-05 by Clint Corbin
Actually, if you read my original message the step right before touching toner to board was a final cleaning with denatured alcohol. I don t use a 3M pad to
Re: [Homebrew_PCBs] Double Sided boards - Was Laser Printer
2009-10-04 by michael tenore
You can use comet but then use denatured or 91pct isopropyl alcohol to clean the soap residue off the board. Then use a clean 3M pad to rough up the
Re: [Homebrew_PCBs] Re: Laser Printer
2009-10-04 by Andrew Mathison
You may find that the inkjet paper works perfectly in your laser printer. paper is paper. The main reason for the difference is that inkjets need a paper that
Re: [Homebrew_PCBs] Double Sided boards - Was Laser Printer
2009-10-04 by Piers Goodhew
... The last board I did, I only gave the copper a good scratch with some old sandpaper. Seemed to work quite well: I m a long way from being certain, but I am
Re: [Homebrew_PCBs] Double Sided boards - Was Laser Printer
2009-10-04 by leon Heller
... From: Lee To: Sent: Saturday, October 03, 2009 11:09 PM Subject: [Homebrew_PCBs] Double Sided boards
Re: [Homebrew_PCBs] Positive photo method paper
2009-10-04 by Michel Baguet
Hi Barry, Interresting. what is the spray you use to darken the toner ? Does the toner really get darker ? Mike ... From: demers_barry
Re: [Homebrew_PCBs] Double Sided boards
2009-10-04 by Cristian
... why not use a depth limiter? ... Cristian [Non-text portions of this message have been removed]
RE: [Homebrew_PCBs] Re: Laser Printer
2009-10-04 by Brian Thorp
Even the big pcb shops have to repair parts too -----Original Message----- Date: Saturday, October 03, 2009 9:42 am To: Homebrew_PCBs@yahoogroups.com
Re: [Homebrew_PCBs] Double Sided boards - Was Laser Printer
2009-10-04 by Clint Corbin
Here are a couple of more tips that have worked for me: 1) I clean my boards with Comet (the blue-green kitchen/bath cleaning powered) using hot water and a
Re: [Homebrew_PCBs] Re: Laser Printer
2009-10-03 by DJ Delorie
... If your local hardware store has hydochloric acid (aka muriatic acid, aka concrete pre-primer, aka pool pH adjuster) you can use that plus home-strength
Re: [Homebrew_PCBs] Re: Laser Printer
2009-10-03 by michael tenore
I use HP presentation paper with excellet results! It soaks up water easily and comes off with much less trouble than photo paper. If you use an iron to do the
Re: Laser Printer
2009-10-03 by Lee
You mean Bob - I think? I wasn t the one asking but rather the one telling Bob that there is a lot of info on Google. Anyway - I d be interested in hearing
Double Sided boards - Was Laser Printer
2009-10-03 by Lee
Thanks for the hints. Alignment hasn t really been that big of an issue - I use more/less the same method you describe. The biggest issues I continue to have
RE: [Homebrew_PCBs] Re: Laser Printer
2009-10-03 by AD5VJ Bob
I just purchased some 200 HP Laser 4x6 Glossy Photo Paper off of ebay hope that works with my Dell 1700 laser printer. Cant find anything but 4X6 in the
Re: [Homebrew_PCBs] Re: Laser Printer
2009-10-03 by Dylan Smith
... Hmm, that seems to be a very high failure rate - I ve had a 100% success rate with getting the registration right with double sided boards, done using
Re: Laser Printer
2009-10-03 by Dave
Hi Lee Lots of info out there on google buddy. I started making my own around a year ago. I have now converted a hot laminator to transfer the print to the
RE: [Homebrew_PCBs] Re: Laser Printer
2009-10-03 by AD5VJ Bob
Hi Lee I dont see you as rude. I just know so little I wasn t sure how to start looking. No problem though, you have given me a good head start and some great
Re: [Homebrew_PCBs] Laser Printer
2009-10-03 by Andrew Mathison
I can t say anything about the printer, but with regard to the PCB, the thicker the copper, the better it is generally speaking...I cannot think of a reason
Re: Laser Printer
2009-10-03 by cboy2us
Don t expect perfect results your first time. There are many many many articles online covering the laser toner transfer. If you are looking for a cheap
Positive photo method paper
2009-10-03 by demers_barry
For what its worth..... I have had tremendous results using a vellum paper from SMR. try this link and start reading: http://www.smrsoftware.com/vellum.php I
Re: Laser Printer
2009-10-03 by Eldon Brown
Bob, I have been doing a lot of HB PCB lately and have learned a lot, check it out at: http://wa0uwh.blogspot.com/search/label/PCB Regards, Eldon - WA0UWH
Re: Laser Printer
2009-10-03 by Lee
Bob AD5VJ, Not to be rude, but its hard to imagine that a person that is too lazy to use google or do even a little searching through the archives of this or
Laser Printer
2009-10-03 by AD5VJ Bob
I am wanting information on using a Laser printer process for making homebrew pcb s. I have a Dell 1700 laser printer and understand that it will work well for
Re: Shipley AZ111 pos photo resist
2009-09-29 by jcarlosmor
You should try AQ-3000 liquid photoresist. It is for professional use and the results are very good. It is negative-acting and for dip coating. Nothing to do
Re: [Homebrew_PCBs] Don't open that site! No, really, don't!
2009-09-29 by Steve Woodford
... It does more than that. After displaying the image it will attempt to exploit vulnerabilities in older versions of browser plugins for Adobe Acrobat Reader
Don't open that site!
2009-09-29 by AlienRelics
... One spammer slipped through, or he s naive, or his computer has been taken over by a bot. Google gave an advisory warning, and that complicated URL just
Re: Shipley AZ111 pos photo resist
2009-09-28 by roycepipkins
Last year folks were talking about Positiv 20. I have not used it, however. http://www.soselectronic.com/?str=371&artnum=33241 Best of luck, Royce
nano silver ckt ink & 3D printing of ceramics
2009-09-28 by William Alford
future possibilities - http://www.sciencedaily.com/releases/2009/02/090212141204.htm New Silver-based Nanoparticle Ink
Re: Shipley AZ111 pos photo resist
2009-09-26 by designer_craig
I have lots of blank PCB stock here so buying precoated boards is not in the plan. I also want to use the resist for making stensils. Craig
Re: Shipley AZ111 pos photo resist
2009-09-26 by Ben L
You might want to take a look at the M G Chemical s Series 600 boards, these have positive resist on them. You can get them thru Mouser, Allied Electronics,
Re: [Homebrew_PCBs] Re: Laser toner on Silicone sheet??
2009-09-25 by Stefan Trethan
I put the paper on a sheet of glass (old mirror), then I spread the silicone with a stainless steel squeegee from the hardware store. You can really scrape on
Re: [Homebrew_PCBs] Re: Laser toner on Silicone sheet??
2009-09-24 by Lez
... spread thinly... the silicone rubber stuff is not the same as whats on the sheets imho.
Re: Laser toner on Silicone sheet??
2009-09-24 by buckeyes1997
ST Do you or can you recall the procedure for making the silicone coated sheets of paper? I tried it but never got the silicone to spread very evenly. That
Re: [Homebrew_PCBs] Re: Laser toner on Silicone sheet??
2009-09-24 by Stefan Trethan
The paper coated with high temperature silicone is not slippery, the paper has some grip to it, like a rubberized handle. I ve also found it impossible to
Re: [Homebrew_PCBs] Re: Laser toner on Silicone sheet??
2009-09-24 by James Bishop
I ve tried the silicone baking paper without success - basically the toner didn t stick to the paper very well and came out all messy. Also my printer (samsung
Re: Laser toner on Silicone sheet??
2009-09-23 by AlienRelics
Some have used the backing sheets from sticky-back label paper, it has a non-stick coating. And there is silicone coated baking paper. Steve Greenfield
Shipley AZ111 pos photo resist
2009-09-23 by designer_craig
Hi, Back in the 70 s and 80 s I etched several hundred boards using Shipley s AZ111 positive photo resist. Recently I have started to build some boards again
Re: [Homebrew_PCBs] Laser toner on Silicone sheet??
2009-09-23 by Stefan Trethan
It required high temp silicone to work, the plain stuff wouldn t for one reason or the other. It worked especially well for component legend print because the