gEDA-user: PCB+GL Branch.. now with less memory leakage!
Aside from the two minor leak fixes I just committed to the PCB GIT repository, there was a pretty horrendous leak of polygon contours introduced in the PCB+GL branch, which is now fixed. (Now I can do my DRC checks without hitting swap, or having to restart PCB after 4-5 runs!) For those using the PCB+GL branch, I suggest updating. before_pours is the branch you want, as usual. -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
DJ Delorie wrote: Just got a box of panels from Advanced Circuits. Five panels, ten boards per panel (two each powermeter, usb-gpio pod, and three pod modules - ten sets of boards total). Joy! Unfortunately, I have no way of separating them into individual boards yet. Sadness! But I do have a 60 degree v-scoring bit for my router table. Joy! Last time I used it, the pcbs were too flexible for the big hole the table had around the bit. Sadness! I was thinking of taking an old 7 table saw blade and re-grinding it to a 60 degree point. I can make a zero-clearance insert for it, to ensure correct cuts. Joy! However, I don't have any of the parts for the boards yet. Sadness! But now I get to go through the BOMs, figure out the best parts to use, put together a digikey order, come up with some hobby money, and wait for it all to arrive. Joy! No, wait... sadness? Crap. Don't forget the perforations, or routed grooves next time :-) There should be a DRC check to prevent that kind of slip. Steve ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
AP Circuits recommended 35mil holes on 50 mil centers to simulate a score line in the past. Oh sure, now he tells me ;-) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
On Tue, 2009-03-31 at 21:18 -0400, DJ Delorie wrote: Just got a box of panels from Advanced Circuits. Five panels, ten boards per panel (two each powermeter, usb-gpio pod, and three pod modules - ten sets of boards total). Joy! Unfortunately, I have no way of separating them into individual boards yet. Sadness! I think you can score them with a utility knife on both sides and snap them apart. Run it along a straight edge, to make the line straight. Do it a number of times to make the scoring deep. Put on edge of table and it should break apart along the line. Kip -- Kipton Moravec AE5IB .- . . .. -... == Four Way Test Is it the Truth? Is it Fair to all concerned? Will it build Goodwill and Better Friendships? Will it be Beneficial to all concerned? - Herbert J Taylor (1932) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
I think you can score them with a utility knife on both sides and snap them apart. I've tried that before with no luck. The boards are just too thick to be able to score reliably and deeply enough. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: Is anybody working on SRC?
Just our of curiosity is anybody working on an SRC flow for gschem? It would be nice to have an SRC interface for connect by name, floating/dangling nets, unnamed nets, shorted outputs, etc. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: Some questions about gnuplot
Is it possible to change the crosshair color in gnuplot? I changed the background to black and the foreground to gray (using .Xresources), but the crosshairs when mouse hovering over the plot are still black so it looks invisible. Also, is there a way to load a script for gnuplot on startup? For example running the command gnuplot somescript.p and have a graph automatically pop up as if you entered the gnuplot prompt and typed load 'somescript.p' ? ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
DJ Delorie wrote: I think you can score them with a utility knife on both sides and snap them apart. I've tried that before with no luck. The boards are just too thick to be able to score reliably and deeply enough. Yeah, its tough to do yourself. Did you just forget to put the necessary grooving in your drill info, or haven't you crossed that bridge before? Some people still use a row of holes as a snap-off line, but grooving with a router is pretty much the norm now. Steve ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Some questions about gnuplot
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Also, is there a way to load a script for gnuplot on startup? For example running the command gnuplot somescript.p and have a graph automatically pop up as if you entered the gnuplot prompt and typed load 'somescript.p' ? Try gnuplot -persist somescript.p Without the -persist option you actually get a graph for a split second before gnuplot exists and closes it again. Best regards Tomaž -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFJ068YsAlAlRhL9q8RAtZ5AJ4/cyXcKCP8iEXchskmt2AMGSWlUACfcYlV 8jVEtlEdNgKAZeCM3vrB02E= =VpVI -END PGP SIGNATURE- ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
Yeah, its tough to do yourself. Did you just forget to put the necessary grooving in your drill info, or haven't you crossed that bridge before? 33each doesn't allow v-scoring or tab routing. I did pay extra for multiple parts though, I figured an extra $50 to get 50 boards instead of 5 was a good deal. Some people still use a row of holes as a snap-off line, but grooving with a router is pretty much the norm now. I tried that with my wood router, but it didn't work so well. On the Joy side of the equation, I just finished regrinding a circular saw blade for v-scoring, and it worked like a charm. I took an old plywood blade (7-1/4 diam, teeth about 3/16 apart) and did an initial grind with my angle grinder, then a final grind with a coarse/fine grit stone. Note: the blade was mounted backwards, so the teeth would not cut anything (nor be damaged by the process), but it was running. I used a 30-60-90 triangle to gauge the angle. GENTLE pressure is all that's needed, and it took less than a total of a minute of grinding to get those tiny points where I wanted. After fine tuning the height to cut about 1/3 of the way through each side, the board easily snapped in two along the cuts. No evidence of any burning, either. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
On Wed, Apr 01, 2009 at 03:24:38PM -0400, DJ Delorie wrote: On the Joy side of the equation, I just finished regrinding a circular saw blade for v-scoring, and it worked like a charm. I took an old plywood blade (7-1/4 diam, teeth about 3/16 apart) and did an initial grind with my angle grinder, then a final grind with a coarse/fine grit stone. Note: the blade was mounted backwards, so the teeth would not cut anything (nor be damaged by the process), but it was running. Wait, you mounted a blade in a table saw (backwards) and then ran the table saw and worked the blade with an angle grinder? You have balls of steel! -- Ben Jackson AD7GD b...@ben.com http://www.ben.com/ ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: Bitmap background - Was: Re: Reverse engineering with PCB?
Sometimes I wish, that the PCB offers another reverse-engineering related functionality. It could be possible to place (precise scaling and rotating would be necessary) the photograph or the scan of the PCB as the background, and then draw tracks on it. It could be useful for utilising of different free resources - e.g. the PCB layouts from the chip manufacturers' application notes or from magazines. It could be also useful for reusing of my own old designs - either prepared with old, not existing any more PCB programs, or just drawn by hand. -- Regards, Wojtek ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
Wait, you mounted a blade in a table saw (backwards) and then ran the table saw and worked the blade with an angle grinder? Yes. With full safety gear and my paranoid dial set to 11. It turned out to be quite a letdown, though. It went smoothly with no indications of the types of instabilities or panic I anticipated. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: Orange pins in PCB
I have to make some traces on a board .050. In doing this it caused two pins on a connector to turn orange designating a short. I ripped up all routes and re-optimized all rats but the two pins on the connector are still orange. How do I get rid of the orange pins? Thanks ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Bitmap background - Was: Re: Reverse engineering with PCB?
Oooops... I was not able to find it. Sorry and thanks a lot for the pointer. -- Regards, Wojtek On Wed, Apr 1, 2009 at 9:53 PM, DJ Delorie d...@delorie.com wrote: It could be possible to place (precise scaling and rotating would be necessary) the photograph or the scan of the PCB as the background, and then draw tracks on it. We have that already. Have had it for a long time, too. http://www.delorie.com/pcb/bg-image.html ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Orange pins in PCB
On Wed, Apr 01, 2009 at 03:57:59PM -0400, Rob Butts wrote: I have to make some traces on a board .050. In doing this it caused two pins on a connector to turn orange designating a short. I ripped up all routes and re-optimized all rats but the two pins on the connector are still orange. How do I get rid of the orange pins? There was a bug a long time ago where the orange pins would not get reset. If you are using a version more than a year old you should upgrade. If not, you may have a small bit of trace hidden under the pin. Turn off the pins layer to check. These happen when your pin is slightly off grid and your line settings cause the tiny makeup angle to be at the end of the line. -- Ben Jackson AD7GD b...@ben.com http://www.ben.com/ ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Orange pins in PCB
I have to make some traces on a board .050. In doing this it caused two pins on a connector to turn orange designating a short. I ripped up all routes and re-optimized all rats but the two pins on the connector are still orange. How do I get rid of the orange pins? find or select something else, then unfind or unselect it. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: gschem Bus tutorial
Someone with rights on the wiki should add at least a link to that email there. On Tue, Mar 31, 2009 at 2:38 AM, Paul Tan pt75...@aim.com wrote: Hi Ed, In general, current gEDA architecturally supports any kinds of BUS implementation. Specifically, current Gschem/Gnetlist Verilog netlister supports simple BUS, e.g., data_bus[31:0], etc., including true hierarchy. An example to demonstrate gEDA hiearchical Verilog design with bus has been posted: http://archives.seul.org/geda/user/Jan-2009/msg00056.html However, most other backends, such as PCB, has not yet implemented BUS in netlisting. PCB Netlisting with BUS support can be implemented using similar strategy as Verilog Netlisting. In essence, the answer to your question depends on which backends tools you are using. Best Regards, Paul Tan -Original Message- From: Kingston Co. fred...@sb.net To: geda-user@moria.seul.org Sent: Sun, 29 Mar 2009 5:47 pm Subject: gEDA-user: gschem Bus tutorial Is there a tutorial anywhere? I cannot find any detailed info on how to use this tool. Thanks, Ed Kingston Co. fred...@sb.net ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user -- http://www.coe.neu.edu/~efoss/ http://evanfoss.googlepages.com/ ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: PCB+GL Branch.. now with less memory leakage!
Funny title On Wed, Apr 1, 2009 at 8:53 AM, Peter Clifton pc...@cam.ac.uk wrote: Aside from the two minor leak fixes I just committed to the PCB GIT repository, there was a pretty horrendous leak of polygon contours introduced in the PCB+GL branch, which is now fixed. (Now I can do my DRC checks without hitting swap, or having to restart PCB after 4-5 runs!) For those using the PCB+GL branch, I suggest updating. before_pours is the branch you want, as usual. -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user -- http://www.coe.neu.edu/~efoss/ http://evanfoss.googlepages.com/ ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Bitmap background - Was: Re: Reverse engineering with PCB?
On Wed, 2009-04-01 at 15:53 -0400, DJ Delorie wrote: It could be possible to place (precise scaling and rotating would be necessary) the photograph or the scan of the PCB as the background, and then draw tracks on it. We have that already. Have had it for a long time, too. http://www.delorie.com/pcb/bg-image.html NB: Doesn't work in the PCB+GL branch, as I never got around to coding the support. -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
Future warning, don't do that to an old carbide tipped blade. The braising holding on the carbide might be a touch brittle, and cause a few teeth to launch. Welcome to the world of toolmaking :-) on a side note, a diamond saw blade probably wouldn't do what you want. They are not designed for sharp points. there usually diamond flake imbedded into a compound that rubs away to expose new bits of dust. so a sharp point would be quickly rounded off. On Apr 1, 2009, at 12:53 PM, DJ Delorie wrote: Wait, you mounted a blade in a table saw (backwards) and then ran the table saw and worked the blade with an angle grinder? Yes. With full safety gear and my paranoid dial set to 11. It turned out to be quite a letdown, though. It went smoothly with no indications of the types of instabilities or panic I anticipated. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: Adding a via in PCB
I use PCB version 20070208 and I'd like to add a via to route a trace from one side of the board to the other. I tried copying a via from a component but I can't copy and paste it. The cursor changes to a hand and it won't let me copy it. Is this possible? ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Adding a via in PCB
I use PCB version 20070208 and I'd like to add a via to route a trace from one side of the board to the other. I tried copying a via from a component but I can't copy and paste it. The cursor changes to a hand and it won't let me copy it. Is this possible? Components (elements) do not have vias, they have pins. To create a via, use the via tool (F1). Or, while routing traces, simply click on the last point of one trace, switch layers, and continue routing. The via is added automatically. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
Future warning, don't do that to an old carbide tipped blade. I purposely avoided the carbide blades, for exactly that reason. on a side note, a diamond saw blade probably wouldn't do what you want. They are not designed for sharp points. Right, but if they're thin enough, I could just cut the FR4. Carbide would dull too quickly. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
Why didn't you want to use your scroll saw? (* jcl *) -- You can't create open hardware with closed EDA tools. http://www.luciani.org ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
DJ Delorie wrote: I think you can score them with a utility knife on both sides and snap them apart. I've tried that before with no luck. The boards are just too thick to be able to score reliably and deeply enough. That old wives tale comes from the days when paper/phenolic boards where the norm. Does not work on FR4 ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
Why didn't you want to use your scroll saw? * It would take a long time to make all those cuts (130 inches total). * I would go through many blades. * The edges wouldn't be that straight. I've thought of getting carbide scroll saw blades, but you'd also want dual-cut blades to clean up the underside edge. That means specialty blades, which are expensive, and they'd still dull pretty quickly. The soldering challenge boards were only 99 inches of cutting and I recall not liking using the scroll saw for them. This is what fricken lasers are for :-) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
On Wed, Apr 1, 2009 at 7:32 PM, DJ Delorie d...@delorie.com wrote: Why didn't you want to use your scroll saw? The soldering challenge boards were only 99 inches of cutting and I recall not liking using the scroll saw for them. Do you remember apx how many blades you went through? I was thinking of getting a shear. If it works well enough it could pay for itself pretty quickly. (* jcl *) -- You can't create open hardware with closed EDA tools. http://www.luciani.org ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
I recently ordered a batch of 4 layer boards from 66each and was able to get 7 different boards on the panel. I made a router table from my Dremel tool from MDF and used an 0.031 carbide end mill set to cut about half way through the board. After routing both sides, the edges I routed are hard to tell from the ones Advanced Circuits routed. The FR4 dust was bad, so you may want to wear a mask if you do it this way. Darrell Harmon On Tue, Mar 31, 2009 at 8:18 PM, DJ Delorie d...@delorie.com wrote: Just got a box of panels from Advanced Circuits. Five panels, ten boards per panel (two each powermeter, usb-gpio pod, and three pod modules - ten sets of boards total). Joy! Unfortunately, I have no way of separating them into individual boards yet. Sadness! But I do have a 60 degree v-scoring bit for my router table. Joy! Last time I used it, the pcbs were too flexible for the big hole the table had around the bit. Sadness! I was thinking of taking an old 7 table saw blade and re-grinding it to a 60 degree point. I can make a zero-clearance insert for it, to ensure correct cuts. Joy! However, I don't have any of the parts for the boards yet. Sadness! But now I get to go through the BOMs, figure out the best parts to use, put together a digikey order, come up with some hobby money, and wait for it all to arrive. Joy! No, wait... sadness? Crap. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
Do you remember apx how many blades you went through? I recall that each blade was good for about 20 inches. You can extend that if you put a piece of plywood under the pcb, letting you use 2 (or even 3) different parts of the blade. I was thinking of getting a shear. If it works well enough it could pay for itself pretty quickly. This is the most common model on Homebrew_PCBs: http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=90757 Some folks get this bigger one instead: http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=5907 but I've been drooling over this intermediate one, which also has a slip roller: http://www.grizzly.com/products/Sheet-Metal-Machine-12-/G6089 ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
On Wed, Apr 1, 2009 at 7:43 PM, Darrell Harmon dlhar...@dlharmon.com wrote: I recently ordered a batch of 4 layer boards from 66each and was able to get 7 different boards on the panel. I made a router table from my Dremel tool from MDF and used an 0.031 carbide end mill set to cut about half way through the board. After routing both sides, the edges I routed are hard to tell from the ones Advanced Circuits routed. The FR4 dust was bad, so you may want to wear a mask if you do it this way. Do you have a picture of your setup? Any idea how many linear inches you get per end mill? (* jcl *) -- You can't create open hardware with closed EDA tools. http://www.luciani.org ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: DRC stuff
Help me out, please. 1. What does potential for broken trace mean? 2. Why does it report so many DRC errors, copper areas too close, when I routed with 10 mil space and list DRC as 10 mil clearance? thanks gene ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
-Original Message- From: geda-user-boun...@moria.seul.org [mailto:geda-user-boun...@moria.seul.org] On Behalf Of DJ Delorie Sent: Wednesday, April 01, 2009 7:45 PM To: geda-user@moria.seul.org Subject: Re: gEDA-user: the joy and sadness of new boards ... but I've been drooling over this intermediate one, which also has a slip roller: http://www.grizzly.com/products/Sheet-Metal-Machine-12-/G6089 What is a slip roller? I don't recall that term from my high school shop class... D ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
What is a slip roller? I don't recall that term from my high school shop class... It's for curving metal - tubes, wire circles, etc. http://www.grizzly.com/products/36-Slip-Roll-22-Gauge/G5770 ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
On Apr 1, 2009, at 4:43 PM, Darrell Harmon wrote: FR4 dust was bad, so you may want to wear a mask if you do it this way. put your shop vac pulling the dust away from the side of the dremel ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: DRC stuff
On Wed, 01 Apr 2009 19:52:49 -0400, gene glick wrote: 1. What does potential for broken trace mean? There are tracks that overlap less than the minimum recommended value. This value can be configured in preferences - sizes 2. Why does it report so many DRC errors, copper areas too close, when I routed with 10 mil space and list DRC as 10 mil clearance? Was the auto DRC setting always active? Unfortunately, there is no auto DRC checking when moving or stretching tracks. So you might have violated minimum clearance without noticing. HTH, ---(kaimartin)--- ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: the joy and sadness of new boards
http://www.t-tech.com/order/product.asp?sectionid=1catid=71productid=580 Grizzly has one similar to that too, but that type as no brake or slip roll. And it's quite a bit more expensive than the other models! ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: DRC stuff
I see if I set the minimum space for DRC at 9.9 mil, it's ok after I moved the big offenders. Is that sufficient? ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: DRC stuff
Well, 9.99 is closer. The way bloat works, it increases everything by bloat/2 and anything that touches fails. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: DRC stuff
On Thu, 2009-04-02 at 00:25 +, Kai-Martin Knaak wrote: On Wed, 01 Apr 2009 19:52:49 -0400, gene glick wrote: 1. What does potential for broken trace mean? There are tracks that overlap less than the minimum recommended value. This value can be configured in preferences - sizes I still see PCB complain about these in instances I can't understand what it is griping about. Might be a bug. KMK's explanation of the feature's intention is correct though. Aside from the historical reason for its existence (back when each line was drawn individually by the photo-plotter, features had to have an overlap in case of registration issues), it helps catch places where you might have two correctly sized lines just touching at their circular capped ends. (Leaving a piece of copper less than the allowed thickness, but which would not be caught by the DRC rule which checks the line widths). 2. Why does it report so many DRC errors, copper areas too close, when I routed with 10 mil space and list DRC as 10 mil clearance? Assuming there are no real violations on the board, it could be a rounding error, or a inclusive / exclusive test bug. Try setting your DRC rules to allow 9.9 mil spacing.. does the reports go away? -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: powermeter boards available
Those of you who are interested in powermeter boards [1] please contact me. I assume that in this crowd, you folks won't need me to do any soldering for you ;-) (note: there *are* two QFNs) Parts will cost you around $180 per board, plus whatever current transformers you choose. Most of the cost is for the 16 ADE power meter chips. I've got ten boards total, four for me and one pre-claimed. That leaves five for this crowd. Cost is $20 each plus shipping, call it $22, US funds. [1] http://www.delorie.com/electronics/powermeter/ ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
