Re: PCB DESIGN industry standard
2007-11-14 by alioth10
... operating systems so guess I would have to buy a new box for linux or ... No, there are several options open to you without buying a new computer: - buy a
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Re: [Homebrew_PCBs] Re: PCB DESIGN industry standard
2007-11-14 by Steve Wiseman
... OK, cheers. Sounds like it s time for another try, once this rush-job s out of the way. Where s a good place to hang out for support & tips on geda? Steve
Re: [Homebrew_PCBs] PCB DESIGN industry standard
2007-11-14 by Stefan Trethan
As others have said Protel(Altium) and Orcad are definitely some of the names in the business. But there is not really any problem to use another decent
Re: [Homebrew_PCBs] Re: PCB DESIGN industry standard
2007-11-14 by DJ Delorie
... Or run gEDA on Windows. A little trickier to build and install, but it can be done. ... Linux is free, you can run it under vmware or something. ... The
RE: [Homebrew_PCBs] Re: PCB DESIGN industry standard
2007-11-13 by AD5VJ Bob
Looks like I am lost on Geda too bad it looks like something that my son could use in order to get used to the way things work with EDA for sure. I like the
Re: [Homebrew_PCBs] Re: PCB DESIGN industry standard
2007-11-13 by DJ Delorie
... Sadly, we agree.
Re: [Homebrew_PCBs] Re: PCB DESIGN industry standard
2007-11-13 by DJ Delorie
... The geda/pcb file formats are well documented, public, and ASCII. The only limiting factor is getting the other packages to produce something in a format
Re: [Homebrew_PCBs] Re: PCB DESIGN industry standard
2007-11-13 by DJ Delorie
... The really interesting boards are all NDA. I have them so I can fix pcb bugs. Suffice to say, one of them was the reason PCB can do more than 16 layers.
Re: PCB DESIGN industry standard
2007-11-13 by Andrew
... I have manualy teardropped pads for many years when I used protel. When doing home etched boards (read hand drilled) the ammount of time lost doing
Re: [Homebrew_PCBs] Re: PCB DESIGN industry standard
2007-11-13 by Steve Wiseman
... Is there any way to import existing libraries from other packages? Protel s happy to export cleartext ASCII libraries, and import at least some others, so
Re: [Homebrew_PCBs] Re: PCB DESIGN industry standard
2007-11-13 by Steve Wiseman
... Do you have links for complex stuff? Things like BlackfinOne are an order of magnitude or two simpler than I d like... Then again, my first real gEDA
Re: [Homebrew_PCBs] Re: PCB DESIGN industry standard
2007-11-13 by DJ Delorie
... Well, at least it can be done - I ve seen a number of really complex boards get done with it. All the developers are users too, and we re actively working
Re: [Homebrew_PCBs] PCB DESIGN industry standard
2007-11-13 by Bob Macklin
I have used both Protel and OrCad. I pefer Orcad and still use it. It s much better than the lower cost freebies that are availble. But in my case I have had
Re: [Homebrew_PCBs] Re: PCB DESIGN industry standard
2007-11-13 by Steve Wiseman
... For contract work, I use Protel (well, Altium Designer 6), but I also have older versions of Orcad (came bundled with Specctra) and Pads (bought for me by
Re: [Homebrew_PCBs] PCB DESIGN industry standard
2007-11-13 by Larry Geib
There are several. Two common ones are Protel and ORCad. Larry
Re: PCB DESIGN industry standard
2007-11-13 by Steve
And what I d -really- like to see, is people adding links to their favorite Schematic Capture/PCB Routing programs to the Links area in the
Re: PCB DESIGN industry standard
2007-11-13 by Steve
That is an excellent question. I don t think there is one answer to that, however I am also very interested in the answer(s). Yep, the guy who started the list
PCB DESIGN industry standard
2007-11-13 by AD5VJ Bob
Can anyone please tell me what is considered the standard commercial application in the electronics industry for PCB design? Or is there one?? Tnx Bob AD5VJ
Re: direct laserjet to copper - not
2007-11-12 by pgdion1
... I tried this with some 1 wide copper tape stuck to paper. I was hoping it might work and could be used for flexible thin boards. It didn t transfer well
Re: [Homebrew_PCBs] direct laserjet to copper - not
2007-11-12 by Stefan Trethan
You could stick some tape on the back of the aluminum foil and try to etch it with disposeable etchant. This will show if it works or not. It would probably
Re: [Homebrew_PCBs] Home Reflow soldering W/O Soldermask
2007-11-12 by DJ Delorie
... I do 0.5mm pitch without mask on a hotplate. At that fine a pitch, the mask doesn t really help much anyway. Just use some solder wick if there are any
Re: [Homebrew_PCBs] direct laserjet to copper - not
2007-11-12 by Lez
... well if the copper i have went through i d love to, but from what i m seeing on foil, looks at least 75%, not being an expert on this judging transfer by
Re: [Homebrew_PCBs] direct laserjet to copper - not
2007-11-12 by Stefan Trethan
... Maybe even the corona wire wil be enough to push some charge on the surface of the drum. Works with paper after all. Lez, i know you say it looks OK, but
Re: [Homebrew_PCBs] Home Reflow soldering W/O Soldermask
2007-11-12 by Stefan Trethan
Works fine. For some very fine pitch components it is even recommended to go without mask between pins. The only difficulty is traces between pads, you may get
Home Reflow soldering W/O Soldermask
2007-11-12 by art_lammoglia
Hello group. I was wondering if anyone here has attempted home reflow (toaster/hotplate) soldering of a fine pitch device on a non- soldermasked board? All
Re: [Homebrew_PCBs] direct laserjet to copper - not
2007-11-12 by Lez
... tried this with my hpl4, works 100% onto tin foil stuck to a sheet of a4 copier paper (usa: aluminum cooking / turkey foil ?) maybe it works for me as the
Re: [Homebrew_PCBs] direct laserjet to copper - not
2007-11-12 by DJ Delorie
Ok, wild thought. Can you image toner directly onto dry photomask then? * Does the laser use UV at all, exposing the mask? * Will the toner stick to DPM? *
Re: [Homebrew_PCBs] direct laserjet to copper - not
2007-11-12 by Andrew Tweddle
... The basic theoretical reason that laser drum straight to copper circuit board won t work is that it(the copper surface) provides a short circuit onto the
Re: [Homebrew_PCBs] direct laserjet to copper - not
2007-11-11 by agscal -AGSCalabrese
The copper just does not get hot enough I would guess. On Nov 11, 2007, at 11:20 AM, DJ Delorie wrote: Got some 8 mil thick clad, tried sending it through an
Re: [Homebrew_PCBs] direct laserjet to copper - not
2007-11-11 by DJ Delorie
... Hence old laserjet and not new laserjet ;-) I knew the risks. The printer barely works on its own anyway. And the paper prints were done after the
Re: [Homebrew_PCBs] direct laserjet to copper - not
2007-11-11 by Stefan Trethan
Probably you already damaged the drum or fuser coating. Direct laser printing will not work easily for several reason, many discussed here at great length
direct laserjet to copper - not
2007-11-11 by DJ Delorie
Got some 8 mil thick clad, tried sending it through an old Laserjet 4. The panel went through OK, but the toner just didn t stick to it. I saw a faint image
New Elektor reflow oven (Dec 07)
2007-11-09 by warrenbrayshaw
A new reflow oven construction project will be in the December edition of Elektor magazine: In their words SMD Reflow Oven Controller Back in the January 2006
Re: direct inkjet, I can't figure this out
2007-11-08 by Steve
And of course the idea is to get this all figured out so that once you follow the plans/procedures to the letter, you just drop the board in the printer, bake
Re: [Homebrew_PCBs] Re: direct inkjet, I can't figure this out
2007-11-08 by Christopher Hart
Short term - definately not. Long term - probably! We want to minimize the supplies we need to buy.
Re: [Homebrew_PCBs] Re: Breaking the 6/6 barrier
2007-11-07 by DJ Delorie
... Actually, I already thought of this. When I wrote the postscript output plugin for PCB, I added a bloat option that lets you expand all the toner by
Re: Breaking the 6/6 barrier
2007-11-06 by warrenbrayshaw
Not mentioned so far in this round, is the technique of allowing for the side etching of the trace in your pattern design. Depending on the copper thickness
Re: [Homebrew_PCBs] Re: New here and a question.
2007-11-06 by Markus Zingg
Optically the resist looks like the one I used bevore switching to the Ordyl, but do you really have to apply it wet?? I belive you went through 25 so small
Re: New here and a question.
2007-11-06 by Chris
Thanks I will look for it. Google only got 10 results with only 3 of those in English. I have seen whole rolls of what I buy, but I haven t ordered because I
Re: Breaking the 6/6 barrier
2007-11-06 by dagmargoodboat
... We have to distinguish between sharply defined dots in staggered positions (staggered due to aliasing, for example), from smudged dots. Angling the
Re: cutting SMALL! PCB's
2007-11-06 by Dennis
Hi Greg, My $0.02... Since your strips are only a 0.1 wide, you ll want a method that minimizes waste. A sheet metal shear would be ideal. Harbor Freight has
Re: [Homebrew_PCBs] Re: New here and a question.
2007-11-06 by Markus Zingg
Chris, I use Ordyl Alpha 900, but there are other products around. They are used to produce PCBs. You may want to contact a board house near you to ask for a
Re: [Homebrew_PCBs] Re: Breaking the 6/6 barrier
2007-11-06 by Leon
... From: DJ Delorie To: Sent: Tuesday, November 06, 2007 12:16 AM Subject: Re: [Homebrew_PCBs] Re: Breaking
Re: New here and a question.
2007-11-06 by Chris
Markus, Thanks, I will just stick to Ferric Chloride. If it s daytime I expose outside in about 1 minute. I am interested in the resist film you mentioned. The
Re: [Homebrew_PCBs] direct inkjet, I can't figure this out
2007-11-06 by p flex
I m just getting the last of my bugs out of my C84 printer. It sounds like, one, you need to get more ink down smoothly, and two, you need to cure it better.
Re: [Homebrew_PCBs] Re: Breaking the 6/6 barrier
2007-11-06 by DJ Delorie
... I was thinking that less waviness in the print gives you more leniency elsewhere. At least, my prints don t have a definite edge , it s more of a 3 thou
Re: Breaking the 6/6 barrier
2007-11-05 by dagmargoodboat
... I don t think that s super critical for signal traces--as long as the trace exists & survives etching without breaking; we don t care if it s a little
Re: OHP Film, Transperancy, Acetate Film
2007-11-05 by Dennis
Hi Parag, I can t answer your questions about the differences, but can tell you what did and didn t work for me. I ve had good success with HP Inkjet
Re: [Homebrew_PCBs] New here and a question.
2007-11-05 by Markus Zingg
Chris, I don t think that you can much optimize your process by changeing the etchant. You easily can optimize the etching process itself though. You may want
Re: [Homebrew_PCBs] New here and a question.
2007-11-05 by Leon
... From: Chris To: Sent: Monday, November 05, 2007 8:19 AM Subject: [Homebrew_PCBs] New here and a