That rings a bell. A group here used to send dxf or iges of simple switch boards done in a mechanical cad pkg. The boardshops they dealt with really didn't appreciate it at all. Hard to know what was to be filled and not, what line width was assumed (if any thought was given to it at all, etc. They eventually refused to accept anything other than gerber. The moral being that while the software ACCEPTS DXF or IGES input, that is not a gaurantee that they'll interpret it as you intended it to be. Communicate and check, if you must work this way. -Chris "Ryan, Ronald" <[log in to unmask]> Sent by: DesignerCouncil <[log in to unmask]> 02/07/2007 01:22 PM Please respond to "(Designers Council Forum)" <[log in to unmask]>; Please respond to "Ryan, Ronald" <[log in to unmask]> To [log in to unmask] cc Subject Re: [DC] Freeware Layout Tools Another Choice..... If the Engineer is familiar with AutoCad, he should be able to lay it out following some guidelines. Most Cam software (like CAM350), has a DXF-IN capability. The only thing I would suggest, is that he very carefully checks the Gerber verification files prior to fabrication. Ron -----Original Message----- From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of Charles Gervasi Sent: Wednesday, February 07, 2007 12:27 PM To: [log in to unmask] Subject: Re: [DC] Freeware Layout Tools I am interested in this question too. I briefly tried to use PCB123 until I got access to a machine with OrCAD PCB Designer (Allegro Lite). PCB123 didn't seem bad, but I never finished a board with it. My understanding, though, is that you cannot generate normal Gerber artwork with free programs. It generates a proprietary format that only the fab that makes the software accepts. They make their money at that point. My impression was if you know you're not going to fab more than a few boards, PCB123 is a good deal. I like OrCAD PCB Designer, which include OrCAD Capture and "Allegro Lite". I believe my company paid $6,000 for it. I really like Allegro. I have heard good things about EagleCAD, which is much cheaper. I am curious to hear if Allegro and PADS are really worth their high price tags. CJ -----Original Message----- From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of Jack Olson Sent: Wednesday, February 07, 2007 10:53 AM To: [log in to unmask] Subject: [DC] Freeware Layout Tools Greetings, I have an engineer who wants to use something like ExpressPCB or PCB123 or FreePCB to design easy-cheesy test boards. Does anyone have experience with any of these packages? best libraries? hidden "gotchas"? I hate to do a long evaluation process before he dives headfirst into something, so I thought I'd ask ya... 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