[kicad-users]Re: How to make little holes in the pads centers printing from Gerbview?
Subject: [kicad-users] Re: How to make little holes in the pads centers printing from Gerbview? If I'm not mistaken Print prints out FULL-SIZED holes, not SMALL centering hole! Other explanations: for .6-8mm drill open area should be 0.2-0.3mm. For 0.8mm thru-hole element a drill open area produced by Print command equals to the drill diameter. I think it's impossible to use 0.8mm open area for centering a 0.8mm drill! In OrCAD there is an option keep drill holes open which produces a same-sized holes for each thru-hole element. I can write a script for overruding every thru-hole padshape to force a Print command work correctly. Is it an only way? Excuse me for my bad english... It's used during manual board making for centering a drill. For home-made boards, rather than using the plot command to create gerbers, use the print command and print exact 1:1 for each layer. That way the layers print as they appear on the screen with the correct width and with open holes in the pads. Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs
Re: [kicad-users]Re: How to make little holes in the pads centers printing from Gerbview?
--- Vladimir Kalyaev [EMAIL PROTECTED] wrote: Subject: [kicad-users] Re: How to make little holes in the pads centers printing from Gerbview? If I'm not mistaken Print prints out FULL-SIZED holes, not SMALL centering hole! Other explanations: for .6-8mm drill open area should be 0.2-0.3mm. For 0.8mm thru-hole element a drill open area produced by Print command equals to the drill diameter. I think it's impossible to use 0.8mm open area for centering a 0.8mm drill! Hi Vladimir, You can also plot your board to a PostScript file. In the plot dialogue there is an option to plot drill holes as Real Size, Small Marks or none. If you don't have a PostScript viewing software you may need to install GhostScript + viewer Regards, Juan Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs
[kicad-users] KICAD gerber problems - tracks
Hi, i'm fairly new to kicad and working my way through but i can't seem to get my tracks to render/print correctly from the gerber file. I'll try to explain. At any corner of a track a gap is present. This image shows it http://bp3.blogger.com/_P9dAsDlNu1A/R77W8X36n7I/ABc/kt_sWXshgG8/s1600/error Those are 1mm tracks but are also present in smaller ones too. What am i doing wrong?
Re: [kicad-users]Re: How to make little holes in the pads centers printing from Gerbview?
Vladimir Kalyaev escreveu: If I'm not mistaken Print prints out FULL-SIZED holes, not SMALL centering hole! Other explanations: for .6-8mm drill open area should be 0.2-0.3mm. For 0.8mm thru-hole element a drill open area produced by Print command equals to the drill diameter. I think it's impossible to use 0.8mm open area for centering a 0.8mm drill! I did some tests (some years ago) and I finaly settled that holes *half the real size* are ideal. That is because dril centers are bigger for bigger drills, if you have a .8mm center for a 3.2mm hole it is just useless. What I used to do was to define all my pads with half the real diameter and fix that in the docs acompanying the drill file... Alain In OrCAD there is an option keep drill holes open which produces a same-sized holes for each thru-hole element. I can write a script for overruding every thru-hole padshape to force a Print command work correctly. Is it an only way? Just the same, a script could be made to fix that and generate the print file. On option could interest some people... Alain
Re: [kicad-users]Re: How to make little holes in the pads centers printing from Gerbview?
That's an excellent idea and so is the pilot drill size. I leared that from a machinist although he would use something like 1/3. --- Alain M. [EMAIL PROTECTED] wrote: Vladimir Kalyaev escreveu: If I'm not mistaken Print prints out FULL-SIZED holes, not SMALL centering hole! Other explanations: for .6-8mm drill open area should be 0.2-0.3mm. For 0.8mm thru-hole element a drill open area produced by Print command equals to the drill diameter. I think it's impossible to use 0.8mm open area for centering a 0.8mm drill! I did some tests (some years ago) and I finaly settled that holes *half the real size* are ideal. That is because dril centers are bigger for bigger drills, if you have a .8mm center for a 3.2mm hole it is just useless. What I used to do was to define all my pads with half the real diameter and fix that in the docs acompanying the drill file... Alain In OrCAD there is an option keep drill holes open which produces a same-sized holes for each thru-hole element. I can write a script for overruding every thru-hole padshape to force a Print command work correctly. Is it an only way? Just the same, a script could be made to fix that and generate the print file. On option could interest some people... Alain Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs
[kicad-users] Re: KICAD gerber problems - tracks
I'm new too but mine prints fine. Can't get to your link, says forbidden you don't have permission. Does it print OK from the normal print in pcbnew? You could try downloading a gerber utility like Viewplot and see if it looks correct in it. Does it look correct in print preview in Gerberview? Also make sure you use the Accurate scale option when printing. --- In kicad-users@yahoogroups.com, moomoo67 [EMAIL PROTECTED] wrote: Hi, i'm fairly new to kicad and working my way through but i can't seem to get my tracks to render/print correctly from the gerber file. I'll try to explain. At any corner of a track a gap is present. This image shows it http://bp3.blogger.com/_P9dAsDlNu1A/R77W8X36n7I/ABc/kt_sWXshgG8/s1600/error Those are 1mm tracks but are also present in smaller ones too. What am i doing wrong?
