Post by thread:EAGLE

part 0 516 bytes content-type:text/x-vcard; charset=us-ascii; (decoded 7bit) In the autoruter set layer 1 "0 1" Francisco > Aaron wrote: > > Can anyone tell me how to ONLY produce a single sided board in Eagle? > > Regards > > Aaron Content-Type: text/x-vcard; charset=us-ascii; name="briones.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Francisco Armenta Content-Disposition: attachment; filename="briones.vcf" Attachment converted: wonderland:briones.vcf (TEXT/CSOm) (0000F833)

> Aaron wrote: > > Can anyone tell me how to ONLY produce a single sided board in Eagle? > > Regards > > Aaron Skip the autorouter. Use only the bottom. You specify which layer a trace is on when you lay out the board. Has anyone tried etching a board, using a negative made by printing from a laser printer onto acetate, in reverse (light for dark, dark for light)? I layed out a board single sided, so I could expose and etch it myself at home. But I haven't tried to make one yet, and I wondered if it could be done without an actual negative. Russell Hedges

> Has anyone tried etching a board, using a negative made by > printing > from a laser printer onto acetate, in reverse (light for dark, dark for > light)? I layed out a board single sided, so I could expose and etch it > myself at home. But I haven't tried to make one yet, and I wondered if > it could be done without an actual negative. > I have tried this, and it sort of works, but my results left a lot to be desired. For some reason, I have better results when I use the positive process. Maybe your printer is better at printing large areas of "dark" than mine (HP 1600C). For getting a negative image (and a positive image image, either by starting with a negative or by doing the process twice), i have found that Datak Pos-Neg film works really well. The contrast is orders of magnitude better. I think I got mine from Electronix Express. Phil Eisermann H:(440) 284-3787 (spam_OUTmazerTakeThisOuTix.netcom.com) O:(440) 329-4680 (.....peisermaKILLspam@spam@ridgid.com)

I have used the Desk Top Fabrication system by DynaArt Designs. They have a catalog/flyer they can send, call 813-524-1500. I don't work for them, and I have used their product in our plant to manufacture boards (VERY small number of units). Terry At 08:23 AM 11/18/99 -0500, you wrote: {Quote hidden}>> Has anyone tried etching a board, using a negative made by >> printing >> from a laser printer onto acetate, in reverse (light for dark, dark for >> light)? I layed out a board single sided, so I could expose and etch it >> myself at home. But I haven't tried to make one yet, and I wondered if >> it could be done without an actual negative. >> >I have tried this, and it sort of works, but my results left a lot >to be desired. For some reason, I have better results when >I use the positive process. Maybe your printer is better at printing >large areas of "dark" than mine (HP 1600C). > >For getting a negative image (and a positive image image, either >by starting with a negative or by doing the process twice), i have >found that Datak Pos-Neg film works really well. The contrast is >orders of magnitude better. I think I got mine from Electronix Express. > > >Phil Eisermann >H:(440) 284-3787 (mazerKILLspamix.netcom.com) >O:(440) 329-4680 (.....peisermaKILLspam.....ridgid.com) > > ----------------------------------------------------------------- Sent from the desk of: Terry Allen Steen, EE EraseMEengineeringspam_OUTTakeThisOuTmarinapower.com 332 McLaws Circle, Ste 111 757-258-8800 (Voice) Williamsburg, Va 23185 757-258-8805 (FAX) ----------------------------------------------------------------- !I AM A WHALE MAIL USER! If you have a large file to send, goto http://www.whalemail.com send them to: mplengineer Give me your account and I will use it also ----------------------------------------------------------------- Visit our web-site: http://www.marinapower.com -----------------------------------------------------------------

Sure, Aaron, I do this all the time. Most autorouters will always try to make a double sided board. I finally stopped fighting and just go ahead and let the autorouter put traces on both sides. Then, I attack the autorouted board. I place all the traces possible on the solder side, re-route a few of them to make it possible, but then finally I am stuck with a few traces on the component side that I just can't route. These are your jumper wires. -- Lawrence Lile -----Original Message----- From: Aaron <azzi_bspam_OUTAZZNET.FREESERVE.CO.UK> To: @spam@PICLISTKILLspamMITVMA.MIT.EDU <KILLspamPICLISTKILLspamMITVMA.MIT.EDU> Date: Tuesday, November 16, 1999 3:00 PM Subject: Eagle Can anyone tell me how to ONLY produce a single sided board in Eagle? Regards Aaron

Hi Justin, AFAIK, you cannot do it in Eagle, but you can do it through the Printer settings. Goto Printer->Properties->Graphics and select 'Print as negative image.' I am not sure if there are other way, perhaps you should send a mail to the Eagle user chat or Eagle support newsgroup. The bad thing about doing the settings through the Printers properties, ( which I think you already know of ) is that if your circuit size is less than a size of the paper defined, then the remaining part will also be printed with black. To reduce the wastage, you can actually, define a custom size paper. But they will still have a minimum range. Good Luck. {Original Message removed}