Re: [Homebrew_PCBs] Re: non-plated-through holes with Eagle
2010-01-20 by Stefan Trethan
Ok in Pulsonix this is done by editing technology, pad styles, and doing a by layer definition. This is badly documented and maybe the most difficult thing I
Messages
Browse messages
Page 228 of 707 · 35337 messages matched
Re: [Homebrew_PCBs] Re: non-plated-through holes with Eagle
2010-01-20 by Leon Heller
... When the pad is added to the footprint you simply select or instead of . Leon
Re: [Homebrew_PCBs] Re: non-plated-through holes with Eagle
2010-01-20 by Stefan Trethan
I don t think that would actually do it in this case. What is required is to eliminate or disconnect the pad on the top side. Basically edit the padstack so
Re: [Homebrew_PCBs] Re: non-plated-through holes with Eagle
2010-01-20 by Leon Heller
... Pulsonix has a plated/unplated option for all pads. Leon
Re: [Homebrew_PCBs] Re: non-plated-through holes with Eagle
2010-01-20 by Stefan Trethan
I m not sure how it can be done in eagle. In most any other layout software you d just define the padstack so it doesn t have a pad on top where you can t
Re: non-plated-through holes with Eagle
2010-01-20 by awakephd
I can t help you with the question about Eagle, but FWIW I don t think there is a way to do that in Kicad, which is the layout program I use. This is one
Re: [Homebrew_PCBs] Winboard pcb layout vs. Dell 1720 laser printer
2010-01-20 by Donald H Locker
Print to pdf (pdf995 is one product) then print that to the Dell. HTH, Donald. ... From: grantfair2001 To: Homebrew PCBs
Re: [Homebrew_PCBs] Re: Reducing concentration of HCl from 10% to 40%
2010-01-20 by Stefan Trethan
I think concentrated can be used to mean both, diluted (usually along with a % specification) as well as highest percentage possible. Language is a strange
Does anyone offer a pcb printer ready to go ?
2010-01-20 by danielzink
I hope it s cool to ask this - but....does anyone (say.....on this list.....) offer a modified printer ready to print to copper clad ? I tried to search - and
RE: [Homebrew_PCBs] Re: Reducing concentration of HCl from 10% to 40%
2010-01-20 by KeepIt SimpleStupid
Maybe this might help: http://www.qvf.com/en/processsystems_3/Mineral%20Acids/AbsorptionofHydrogenChloride.shtml It does show the max concentration at
RE: [Homebrew_PCBs] Re: Reducing concentration of HCl from 10% to 40%
2010-01-20 by Roger Blair
Yeah, my brain was saying reduce the solution (by evaporating off the water) to reach a 40% HCl concentration. I did say I know next to nothing about
My First PCB™
2010-01-20 by Brian Lalor
Just thought I’d share a couple of pictures of my first home-brewed PCB, using the Pulsar toner transfer system:
non-plated-through holes with Eagle
2010-01-20 by Brian Lalor
Does anyone know if it’s possible to tell Eagle that standard holes for through-hole components aren’t automatically attached to both top and bottom
Re: [Homebrew_PCBs] Re: Reducing concentration of HCl from 10% to 40%
2010-01-20 by Adam Seychell
... Just a note, 32%(wt) HCl is still concentrated . You ll be hard pressed finding %40 HCl because vapour pressure is so high that the HCl gas will quickly
RE: [Homebrew_PCBs] Re: Reducing concentration of HCl from 10% to 40%
2010-01-20 by Roger Blair
Bruce, The decimal point was where I wanted it to be, I simply approximated… Which is only two or three points above the high end industrial/commercial
RE: [Homebrew_PCBs] Re: Winboard pcb layout vs. Dell 1720 laser printer
2010-01-20 by Marc Sulfridge
Google CutePDF. ... _________________________________________________________________ Your E-mail and More On-the-Go. Get Windows Live Hotmail Free.
Winboard pcb layout vs. Dell 1720 laser printer
2010-01-19 by grantfair2001
I can t print any of my many PCB layouts with my new printer. I have a lot of PCBs laid out with Winboard 2.25. (The company selling it went out of business
Re: Winboard pcb layout vs. Dell 1720 laser printer
2010-01-19 by grantfair2001
The only thing worse than the Ivex programs was their support. All very shoddy, and very frustrating. Did you try this site? There they have the CD Ivex
Re: Winboard pcb layout vs. Dell 1720 laser printer
2010-01-19 by grantfair2001
I don t know how to print to PDF, can you advise? Grant
Re: [Homebrew_PCBs] Winboard pcb layout vs. Dell 1720 laser printer
2010-01-19 by Bob Huish
And for WinDraft too. I have many old projects and can t print them out. My old system died and when I tried to install on a win98 system it said that the Key
Re: [Homebrew_PCBs] Winboard pcb layout vs. Dell 1720 laser printer
2010-01-19 by Stefan Trethan
print to pdf or even post script on the old machine, load on XP and print out. It used to be possible to use the wrong driver via LPT. Just install any
Winboard pcb layout vs. Dell 1720 laser printer
2010-01-19 by grantfair2001
I can t print any of my many PCB layouts with my new printer. I have a lot of PCBs laid out with Winboard 2.25. (The company selling it went out of business
RE: [Homebrew_PCBs] Re: Reducing concentration of HCl from 10% to 40%
2010-01-19 by Roger Blair
Stefan, Yes, there is. Finally after half a dozen different places that only sell 10% HCl, or muriatic acid replacement , today I finally found a bona fide
Re: Reducing concentration of HCl from 10% to 40%
2010-01-19 by halamander
You can purchase Muriatic Acid at any place that sells pool supplies. It is aqueous HCl. I don t know what concentration it comes in, but it s reasonably
Re: [Homebrew_PCBs] Re: Reducing concentration of HCl from 10% to 40%
2010-01-19 by Stefan Trethan
I m absolutely positive there s HCl to be bought in California somewhere. It s just a matter of finding the source. ST
Re: Reducing concentration of HCl from 10% to 40%
2010-01-19 by Lee Studley
Unfortunately, in California breathing air is considered a carcinogen. ... __________ Information from ESET Smart Security, version of virus signature database
Re: [Homebrew_PCBs] Re: Reducing concentration of HCl from 10% to 40%
2010-01-19 by Harvey White
... Need question mark after Lowes..... H.
Re: [Homebrew_PCBs] Re: Reducing concentration of HCl from 10% to 40%
2010-01-19 by Harvey White
On Mon, 18 Jan 2010 23:15:29 -0800, you wrote: In California, you can t buy concrete cleaner (approximately $6 to $7 per gallon) at Lowes. I m sure that Home
Re: Reducing concentration of HCl from 10% to 40%
2010-01-19 by ikc46118
Are you sure you didn t slip a decimal point somewhere? This is a very concentrated acid, much more than you would need for PCB etching. A saturated solution
Re: [Homebrew_PCBs] Reducing concentration of HCl from 10% to 40%
2010-01-19 by Adam Seychell
... You would end up less than you started with as others have commented. 30~35% (wt) HCl is readily available as brick cleaner/ pool acidfier here in
Re: [Homebrew_PCBs] Re: Reducing concentration of HCl from 10% to 40%
2010-01-19 by lists
In article , ... Certainly will. It s 40 years or so since I did any chemistry but I seem to recall drying organics with anhydrous
Re: [Homebrew_PCBs] Re: Reducing concentration of HCl from 10% to 40%
2010-01-19 by Stefan Trethan
The HCl will definitely boil out first (around 50C lots of it turns to fumes). ST
RE: [Homebrew_PCBs] Re: Reducing concentration of HCl from 10% to 40%
2010-01-19 by Roger Blair
Hal, I (obviously) wasn’t aware of the properties of HCl… If there’s no other (practical) way of reduction, I’ll have to find out if it’s possible to
Professionally Fabricated PCBs
2010-01-19 by bebx2000
At the outset let me say that I have no monetary interest; I simply subscribe to DorkbotPDX RSS feed and this popped up (01/16/2010):
Re: Reducing concentration of HCl from 10% to 40%
2010-01-19 by halamander
Roger, I think you will find that this is not a particularly effective technique. HCl in its native state at room temperature is a gas, what you purchase is
Reducing concentration of HCl from 10% to 40%
2010-01-19 by Roger Blair
I wish to prepare some HCl/H2O2 etchant, and I have 10% HCl. (10% HCl is $5 per gallon, but 40% HCl which is what I need is a lot more expensive) The solution
Re: Help with Eagle PCB
2010-01-19 by rdheiliger
Thanks, I had downloaded Ghostscript but the command line threw me. GSView takes the mystery out of it. The output is accurate too. Check with my calipers. I
Re: [Homebrew_PCBs] Re: Dr Bob Beck /PATENTS
2010-01-19 by William
... proof of function is not required for a patent to be issued. if you search, you will find patents for time machines. ~ Wm.
Re: Help with Eagle PCB
2010-01-19 by awakephd
I m assuming you are on a Windows platform? You might check out Ghostscript and GSView for Windows (http://pages.cs.wisc.edu/~ghost/doc/GPL/gpl864.htm). You
Re: Help with Eagle PCB
2010-01-18 by rdheiliger
I followed the below steps, but can find no program that will print the negative scaled correctly. I also tried using the CAM output set to PS_Inverted
Re: [Homebrew_PCBs] Re: Dr Bob Beck Blood Cleaner...
2010-01-18 by Leon Heller
... Rubbish! Leon
Re: Dr Bob Beck Blood Cleaner...
2010-01-18 by Lee Studley
For Crohn s, make sure you rule out Celiac ( Gluten intolerance ) Google it. Otherwise there are some odd remedies that get overlooked often because they
Re: Dr Bob Beck Blood Cleaner...
2010-01-18 by awakephd
Regardless of whether or not this works, what you are asking of this group is highly dangerous -- making a PCB to be used in an experimental medical procedure
Re: Dr Bob Beck Blood Cleaner...
2010-01-18 by alienrelics
Stefan, well said and I agree with every word. A reminder to everyone - discussions of making PCBs only. If you wish to discuss the design of the electronics,
Re: Dr Bob Beck Blood Cleaner...
2010-01-18 by robbbryder
Leon, is it wierd, or maybe just suppressed info.. ? The following is from US Patent 5188738. Dr Beck used this as the basis for the circuit I m asking be
Re: [Homebrew_PCBs] Dr Bob Beck Blood Cleaner...
2010-01-18 by Stefan Trethan
I m very sorry about your son, I hope he does get better soon. It can be very frustrating when there is no really effective cure that medicine can provide,
Re: [Homebrew_PCBs] Dr Bob Beck Blood Cleaner...
2010-01-18 by Leon Heller
... Weird!!!! I ve had Crohn s disease for 45 years and have had five operations for it and my brother died from it three years ago. I fail to see how a gadget
Dr Bob Beck Blood Cleaner...
2010-01-18 by robbbryder
Hello Group, I spent the last week visiting my 17 year old son in the hospital... Seems he has Crohn s disease.. which required the removal of about a foot of
Re: [Homebrew_PCBs] Tinning adapter for soldering iron
2010-01-17 by lists
In article , ... I live in Kenilworth. -- Stuart http://www.torrens.org.uk/ZFC/gallery/winsor.html
Re: [Homebrew_PCBs] Re: SMD soldering
2010-01-17 by lists
In article , ... I was reading an article recently in an old (1950s) copy of Wireless World about