Re: [Homebrew_PCBs] introduction
2011-08-13 by Eldon Brown
Chuck Welcome to the art of Homebrew PCB creation. I too initially had problems with the Toner Transfer (TT) Method, but now have all of the bugs worked out.
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Re: [Homebrew_PCBs] introduction
2011-08-13 by Harvey White
... Nope, not me. Never lived near there. However: 1) clean board. I use bonami, then a rubdown with 1000 or 1200 grit wet/dry sandpaper, then a acetone rub.
introduction
2011-08-13 by chucketn
Hi all, I m Chuck. Retired USAF avionics, general tinkerer, and amature machinist. I joined this group to get help creating a pcb for a project to CNC a rotary
RE: [Homebrew_PCBs] Re: Printing on a solder mask
2011-08-10 by Boman33
Try to bring the compressor back since you just bought it. It ought to work well. Bertho ======================= From: abuakif Sent: Wednesday, August 10,
RE: Direct print?
2011-08-10 by Crazy Casta
It certainly looks like an interesting idea. The slit is 5 mils wide, so it is within the range of what I would call machineable on a budget (i.e. there exist
Re: Dissolvo Paper
2011-08-10 by leeleduc
Start of original thread is message number 27445
Re: Dissolvo Paper
2011-08-10 by leeleduc
I posted my results in the Photos section under Dissolvo Paper Experiment . check it out.
Re: [Homebrew_PCBs] thinking about buying a CNC kit such as the Bluechick kit
2011-08-10 by Harvey White
On Wed, 10 Aug 2011 09:59:52 -0400, you wrote: I ll weigh in on this.... ... It can...... ... Cost of equipment, maintenance, accuracy, and
Re: [Homebrew_PCBs] thinking about buying a CNC kit such as the Bluechick kit
2011-08-10 by jimf@webstudios.co.uk
Build this one.. http://buildyourcnc.com/default.aspx [1] it has a full set of videos explaining how to do everything. one error I found is in the plan of the
Re: [Homebrew_PCBs] thinking about buying a CNC kit such as the Bluechick kit
2011-08-10 by Mark Lerman
You should be able to do 7 mil or smaller traces with a reasonably good cnc. As has been discussed before, the good pcb machines map the contour of the fr4
thinking about buying a CNC kit such as the Bluechick kit
2011-08-10 by Chris Kleeschulte
I wanted to rekindle the discussion about using CNC for pcb fabrication. I love the toner transfer method, but I hate the chemicals and the drilling. I think a
Re: Printing on a solder mask
2011-08-10 by abuakif
Bertho, I just purchased my rather expensive Airbrush gun along with non-oil based compressor. The thing got really hot and shutted down when I worked with
Direct print?
2011-08-09 by Slavko Kocjancic
Hello... This seems ideal for pcb print.. But the price is probably to high. The question is is that DIYable.
Re: [Homebrew_PCBs] Re: Printing on a solder mask
2011-08-08 by Andrew Leech
I have tried pre-drilling boards in the past, but unless your drills are exceptionally sharp (mine weren t, I was using HSS) you get a little bit of burring
RE: [Homebrew_PCBs] Re: Printing on a solder mask
2011-08-08 by Boman33
An alternative to a regular or specialized drillpress is to buy a small air grinder for 1/8 bits. It has very high RPM, about 50,000 and perfect for the
Re: Printing on a solder mask
2011-08-08 by abuakif
I did try using toner transfer technique (laminator + magazine) but my drill stand is not really fixed. I am thinking on getting the Proxxon later. In
Magazine/Catalogue paper Re: [Homebrew_PCBs] Dissolvo Paper
2011-08-05 by Piers Goodhew
I did, BTW, get around to trying magazine paper (in my case the Virgin Australia in-flight mag) - found a few clean white sections to use for a smallish
Re: [Homebrew_PCBs] Dissolvo Paper
2011-08-05 by Eldon Brown
All, I have some of the Magic Dissolving Paper, and have tried it for Toner Transfer. The Binder in the paper dissolves within seconds when immersed in water,
Re: [Homebrew_PCBs] Spiral Challenge
2011-08-04 by DJ Delorie
... Yup! Hence my interest in your results :-) ... Whew :-)
Dissolvo Paper
2011-08-04 by Roger
Good afternoon to the group. Back in February one of or members was geting samples of Dissolvo paper for toner transfer. Never seen any results posted. I am
Re: [Homebrew_PCBs] Spiral Challenge
2011-08-04 by Eldon Brown
DJ, I just realized via your last name and the Spiral Challenge URL, that you are the owner/keeper of the Challenge. And, we may have chatted/email before on
Re: [Homebrew_PCBs] Spiral Challenge
2011-08-04 by DJ Delorie
Sweet! Here s a tip: you know the track-to-track spacing is 20 mil (you did say 10/10 pattern, yes?). Given that, you can calculate the actual DPI of the
Re: [Homebrew_PCBs] Spiral Challenge
2011-08-04 by Eldon Brown
OK, DJ I did that, see the web page. I will have more thoughts later, it is late. Regards, Eldon Brown 72 - Eldon - WA0UWH - CN88xc -
Re: [Homebrew_PCBs] Spiral Challenge
2011-08-04 by DJ Delorie
Did you try to fix the breaks and measure the resistance? I think it would be interesting to see if my calculations are accurate, and if so, how the measured
Re: Bichromate Alternative for PCB development
2011-08-03 by sandeep
Thanks a lot Baxter, really appreciated your help.. Regards, Motif
RE: [Homebrew_PCBs] Source for larger pieces of FR4 in UK
2011-08-02 by Malcolm Parker-Lisberg
David Have you got a PCB manufacturer in your area, you may be able to obtain some from them. I still have a large stack of free offcuts I obtained from near
Spiral Challenge
2011-08-02 by Eldon Brown
I took the Homebrew PCB Group Spiral Challenge, for my initial results see: http://wa0uwh.blogspot.com/ or an on site search for; PCB 72 - Eldon - WA0UWH -
Re: [Homebrew_PCBs] newbie toons
2011-08-02 by Stefan Trethan
Wait a minute, how would you solder this? If the pitch goes below a certain minimum it ough to be tricky to solder without bridges? ST
Re: [Homebrew_PCBs] newbie toons
2011-08-02 by Stefan Trethan
I think resonant refrigeration is cool. Sounds to me like one of the real innovations that may lead to actual useful products. That stacking idea could
RE: [Homebrew_PCBs] newbie toons
2011-08-02 by Boman33
It sounds like an interesting project. The 3D drawing would be helpful so would be some links to the manufacturer. What is so special about the current package
Re: [Homebrew_PCBs] newbie toons
2011-08-02 by Stuart Schaffert
I understand the mounting concept you have described, but I don t know how to implement it, yet. I do have a question though. The die for the transistor is
newbie toons
2011-08-02 by shoestring
Hello HPCBers, I ve this special project that requires some innovation to be practical on my budget. The gallium nitride transistor is new, invented by a grad
RE: [Homebrew_PCBs] Source for larger pieces of FR4 in UK
2011-08-02 by David C. Partridge
Ebay vendor lamargroup has come up trumps. D. ... From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of David C. Partridge
RE: [Homebrew_PCBs] Source for larger pieces of FR4 in UK
2011-08-02 by David C. Partridge
So did I, but so far none have been able to assist. Dave ... From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of Boman33
RE: [Homebrew_PCBs] Source for larger pieces of FR4 in UK
2011-08-02 by Boman33
Check with the eBay sources. I expect them to have it. Bertho =========================== From David C. Partridge Sent: Tuesday, August 02, 2011 09:10 I m
Source for larger pieces of FR4 in UK
2011-08-02 by David C. Partridge
I m looking for a few pieces of double sided 1 oz. FR4 at least 600mm by 150mm or 200mm (say 24 by 6 (or 8 ), 24 by 12 , or 24 by 18 ). I ve looked on
Re: Kicad question
2011-08-01 by pawel.labedz
hello Norm Unfortunately there is no option to change background colour in PCBbnew. maybe in future version but hard to say. Regards Pawel
Re: Bichromate Alternative for PCB development
2011-08-01 by bebx2000
Motif, Look here, http://tech.groups.yahoo.com/group/Homebrew_PCBs/message/26532 and in particular at this patent, IMAGE-FORMING PROCESS 5556735 (Google
Re: [Homebrew_PCBs] Re: Kicad question
2011-07-31 by Norm
Thanks, Pawel. I should have been more specific - I have the schematic part ok. it s the PCB portion that I have problems with, and preferences does not
Re: Kicad question
2011-07-31 by pawel.labedz
... Hello Norm You can click on preferences - then list will drop down click on colous - then the window will open with all the colours on bottom right side
Kicad question
2011-07-31 by nps0
I m just trying KICAD for the first time. I find the black background very hard to use, and the grid dots just disappear(old eyes, etc.). I can t find any
Laminators for Toner Transfer
2011-07-30 by jonathangordon4790
Hi guys, I m looking to purchase a laminator for my toner transfer process off of ebay. I ve noticed the most common ones are Duck 9 electric laminator, GBC
Bichromate Alternative for PCB development
2011-07-29 by sandeep
Hello Everyone, First of all I thank people of this forum for contributing wealth of knowledge here, I am really amazed. I am exploring possibilities to use
Re: [Homebrew_PCBs] Re: Hand-soldering competition
2011-07-29 by Leon Heller
I ve been using a second-hand Metcal STSS power unit with an MX500 handpiece and cartidges for many years. It cost about about the same as a new Weller
Re: Hand-soldering competition
2011-07-29 by designer_craig
Been using a metcal for many years it a sweet machine. Just don t melt plastic with the tips or try and file them. Got chewed out big time by one of our
Re: [Homebrew_PCBs] Hand-soldering competition
2011-07-28 by Peter Loron
Oh, yes. I love my MX-500. -Pete
Re: [Homebrew_PCBs] Hand-soldering competition
2011-07-28 by DJ Delorie
... Scratch that, I have the MX-1. Still, the Metcals are *sweet*.
Re: [Homebrew_PCBs] Hand-soldering competition
2011-07-28 by DJ Delorie
... Indeed. That s the station I have, but getting there is not half the fun...
Hand-soldering competition
2011-07-28 by Leon Heller
This looks like fun: http://www.protean.co.uk/okinternational/newsletter/2011/issue13/news.html Leon -- Leon Heller G1HSM
Re: [Homebrew_PCBs] liquid pencil
2011-07-28 by Charles R. Patton
Years ago (maybe 40) I read about a technique that mentioned taking standard 2-part epoxy and loading it with graphite (the typical powered graphite for