Re: [PEDA] file formats for PCB manufacturers

2001-07-20 Thread DUTTON Phil
Jim, There are more than 1000 Certified Designers worldwide. Personally, I'm proud to be one of them. As far as I know,it is the only international qualification, recognising the baseline skills and knowledge required to be a board designer. Phil. Phil Dutton C.I.D. Senior CAD Technician IPC

Re: [PEDA] Drawing polygons that contain arcs, is more control po ssible?

2001-07-20 Thread Richard Thompson
Hi Brad /\say this is the track i just placed (for the outline) net name = outline | / |/(ooops, forgot the key part) add a small track named fill inside the area, then drag a polygon completely over it

Re: [PEDA] more footprints

2001-07-20 Thread HxEngr

Re: [PEDA] more footprints

2001-07-20 Thread Greg Olson
- Original Message - From: Dan G. [EMAIL PROTECTED] To: Protel EDA Forum [EMAIL PROTECTED] Sent: Friday, July 20, 2001 9:23 AM Subject: [PEDA] more footprints Greetings all, When editing a library part, the component description only allows 4 footprints to be associated with that

[PEDA] autorouter

2001-07-20 Thread Richard Thompson
Hi guys, Can anyone explain why the autorouter is giving me this error message please? one or more connections cannot be routed due to design rule violations this happens even if i try to just route a single component or net as well as the whole board. i have done a done a complete drc (and

[PEDA] Gerber specification

2001-07-20 Thread Ted Tontis
Yesterday there was a thread on file formats for PCB manufacturers. Here is where you can find the gerber specification in .pdf format. http://www.barco.be/ets/data/rs274xc.pdf Regards, Ted Tontis C.I.D. Engage Networks 316 N. Milwaukee Street Suite 214 Milwaukee WI, 53202 PH 414-273-7600 ext.

Re: [PEDA] more footprints

2001-07-20 Thread Madhu Annapragada
Well...I have been tempted to use a single schematic object (say a Schottky) and associate it with a number of different footprints (DO-41, C-16, DO-204AR, TO-220AC, D-PAK.. so on). Maybe that is what the original poster was asking about?? Madhu -Original Message- From: [EMAIL

Re: [PEDA] Drawing polygons that contain arcs, is more control po ssible?

2001-07-20 Thread Brad Velander
Thanks Richard, now I got it. I had missed the effect of the two nets. Thanks for re-explaining it, I must of been having one of those challenged moments. That is tricky. Brad Velander, Lead PCB Designer, Norsat International Inc., #300 - 4401 Still Creek Dr., Burnaby, B.C., V5C 6G9.

Re: [PEDA] more footprints

2001-07-20 Thread Brad Velander
Steve, It would be very easy to get more then 4 footprints if a person was using a generic transistor symbol. Especially if they are numbering pins using the EBC/DGS method. Using that method you could then come up with probably no less then 40 to 50 orientations/footprints. (One reason that I

Re: [PEDA] autorouter

2001-07-20 Thread Brooks,Bill
Hi Richard, I would suggest that you check your setup on Design Rules for the autorouter. It may be that the spacing you are telling the program to maintain is so large that there are no paths for the router to take that would not violate the spacing rule. - Bill Brooks Bill Brooks PCB Design

Re: [PEDA] Bow Twist

2001-07-20 Thread Brian Guralnick
On normal 2 layer PCBs, I've seen my boards stay flat fine through the SMT mounting process, but after the wave pass, they would have an arch in them. When I changes the design to a 4 layer board, it no longer happened. I think the material on the 4 layer was of better refinement than the 2

Re: [PEDA] Bow Twist

2001-07-20 Thread Harry Selfridge
It sounds like your wave soldering process is not set up correctly. The boards should be evenly heated through before wave soldering, then cooled uniformly. What you describe happens when the board is heated mostly on the solder wave side, causing softening of the resin and differential

Re: [PEDA] Bow Twist

2001-07-20 Thread Dennis Saputelli
yes I'm sure that was the problem on a few occasions Dennis Saputelli Harry Selfridge wrote: It sounds like your wave soldering process is not set up correctly. The boards should be evenly heated through before wave soldering, then cooled uniformly. What you describe happens when the

Re: [PEDA] Bow Twist

2001-07-20 Thread Pullen, Bill
Try increasing the pre-heater temp or slow the conveyer speed. You need the top side of the board at 200 degrees F before contacting the wave. Bill Pullen -Original Message- From: Harry Selfridge [mailto:[EMAIL PROTECTED]] Sent: Friday, July 20, 2001 12:54 PM To: Protel EDA Forum

[PEDA] importing power pcb files

2001-07-20 Thread Ted Tontis
I checked the archive for a thread regarding this but its not there. I want to take a power PCB v3.6 file and import it into protel. I was told at one time this could be done? How far back does the archive go? is there a more extensive one, or am I looking at the wrong archive?