Re: gEDA-user: Problem With SOT23-5? Invisible "Guardband" Around Landpattern; Arcs in Silkscreen

2011-07-31 Thread John Luciani
The problem in the SOT23-5 may be the dash in the filename. Try changing to a name like SOT23_5. (* jcl *) -- http://www.wiblocks.com ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user

Re: gEDA-user: please recommend me a good water soluable flux

2011-04-09 Thread John Luciani
Kester 2331-ZX Aggressive flux so make sure you clean thoroughly. (* jcl *) -- http://www.wiblocks.com ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user

Re: gEDA-user: TDSON-8 footprint

2011-03-19 Thread John Luciani
Not sure the pitch you require but I have a couple of SON's at http://www.luciani.org/geda/pcb/pcb-footprint-list.html (* jcl *) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user

Re: gEDA-user: Board cleaner recommendations

2011-02-23 Thread John Luciani
On Wed, Feb 23, 2011 at 2:38 PM, yamazakir2 wrote: > After you get done soldering and fluxing up your board to solder a lot > of SMT components, what do you guys use to get it looking flux-free > and clean again? I tried MG Chemical flux remove and while it does > remove the flux, after washing it

Re: gEDA-user: OT: High Temperature Connector

2011-02-12 Thread John Luciani
On Sat, Feb 12, 2011 at 7:00 PM, John Griessen wrote: > > PS  the Zierick IDC connectors are all copper, and reflowable, so they can > do 150 deg C > forever.  Copper doesn't have any annealing properties that change any lower > than > 400 deg F I am sure.  Tin is also good at 400 deg F.  That's

Re: gEDA-user: OT: High Temperature Connector

2011-02-12 Thread John Luciani
On Sat, Feb 12, 2011 at 4:26 PM, Steven Michalske wrote: > Or 1/4 inch quick disconnects. > What about just soldering the wires? This is for volume production of MCPCB. Connectors are preferred. Are 1/4 inch quick disconnects the same as faston tabs? The vertical tabs are too tall. Not sure abou

Re: gEDA-user: OT: High Temperature Connector

2011-02-12 Thread John Luciani
Thanks to everyone for the suggestions. The Phoenix style are a bit too tall. The Omnetics are too expensive but the Omnetics site did mention the materials that the 125degC and 200degC rated were made of so I was able to find parts at Tyco and Molex with the high temp materials. I had originally

gEDA-user: OT: High Temperature Connector

2011-02-11 Thread John Luciani
I am looking for a low profile wire to board connector - either two contacts 5A per contact or four contacts 2.5A per contact. I need a temperature rating of at least 110degC (preferable >120degC). UL recognized is required. Being able to remove the wires would be nice but is not a requirement. We

Re: gEDA-user: anyway to make rectangular holes such as these?

2011-01-31 Thread John Luciani
On Mon, Jan 31, 2011 at 1:29 AM, yamazakir2 wrote: > http://products.cui.com/getPDF.aspx?fileID=4458 > I use large round holes -- http://wiblocks.luciani.org/PICO/PICO1TR-index.html IIRC the footprint is in the gEDA section at luciani.org (* jcl *)

Re: gEDA-user: Beginner question about the default title block

2010-12-22 Thread John Luciani
On Wed, Dec 22, 2010 at 2:55 PM, kai-martin knaak wrote: > Johnny Rosenberg wrote: > >> things like ”DRAWN BY”, ”TITLE”, ”REVISION” and so on. Am I supposed >> to  fill that in by using the Text tool or is there a more proper way >> to do it? > > Yes, this is the proper way with the default title

Re: gEDA-user: 2mm 2 x 4 surface mount header

2010-12-16 Thread John Luciani
On Wed, Dec 15, 2010 at 10:42 PM, George M. Gallant, Jr. wrote: > I am looking for the footprint for a 2 x 4 2mm surface mount header. I have some for one of the Molex series at http://www.luciani.org/geda/pcb/pcb-footprint-list.html (* jcl *) ___ g

Re: gEDA-user: Clearance in fiducials & blocking solder paste

2010-12-05 Thread John Luciani
Arcs aren't allowed in footprints. You can overlay rectangular pads along an arc if you need to. The footprint I use for fiducials is below. The request from the assembly house was 1mm pad with 3mm clearance. The board that assembled my last board did not mention any problems (and the board worked

gEDA-user: At least gnetlist 20030901 is required for m4-xxx options.

2010-12-03 Thread John Luciani
When I run the command gsch2pcb --use-files --elements-dir /local/lan/pcb/packages --skip-m4 ELE2_r0.sch I get the error message At least gnetlist 20030901 is required for m4-xxx options. I am on Ubuntu (Mavrick Merrkat) and used apt-get to install the tools. Using the --verbose option produces

Re: gEDA-user: Photo mode to the rescue...

2010-09-07 Thread John Luciani
On Mon, Sep 6, 2010 at 10:09 PM, Eric Brombaugh wrote: > Whenever I post pix from photo mode I always get questions about what tool I > used to do them. Surprising that none of the big pro tools out there provide > that. Who says OSS apps always follow the lead of the proprietary SW world? I ha

Re: gEDA-user: Thermal pad (heatsink)?

2010-07-03 Thread John Luciani
On Sat, Jul 3, 2010 at 8:31 PM, Matthew Lai wrote: > Hello, > > How do I add thermal pad (heatsink, NOT thermal relief pad!) in PCB? > Rectangles/polygons don't clear solder mask. Make a footprint with a large pad. (* jcl *) ___ geda-user mailing lis

Re: gEDA-user: volunteers wanted in LA area

2010-07-01 Thread John Luciani
On Thu, Jul 1, 2010 at 1:04 AM, DJ Delorie wrote: > In October I'm going to be giving a presentation at a conference What is the name of the conference? (* jcl *) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailma

Re: gEDA-user: SMA connector footprint

2010-05-24 Thread John Luciani
On Mon, May 24, 2010 at 3:57 PM, wrote: > Hi all, > i'm new in making pcb's and was wondering what footprint should i use > for an sma connector? > Thanks. I have a couple at -- http://www.luciani.org/geda/pcb/footprints-gif/Connector-gif.html (* jcl *) -- Closed Tools + Open Files !=

Re: gEDA-user: pcb 45 degree angles

2010-05-19 Thread John Luciani
When this happens to me it is caused by not starting on the end point. Sometimes, especially with 45 deg traces, the end point can be a little tough to select. Also if you have changed to a coarser grid it can be more difficult to hit the end point. (* jcl *) -- Closed Tools + Open Files != Open

Re: gEDA-user: Database on symbols, footprints and other (was "Re: gattrib")

2010-05-07 Thread John Luciani
On Fri, May 7, 2010 at 2:45 PM, Dave McGuire wrote: > On May 7, 2010, at 12:49 PM, Windell H. Oskay wrote: >>> >> I wonder how third-part component search services (like findchips.com and >> octopart) presently search the distributors. Does anyone know? There must >> be some sort of API that th

Re: gEDA-user: Double sided surrface mount pad

2010-05-04 Thread John Luciani
On Tue, May 4, 2010 at 8:33 AM, George M. Gallant wrote: > I recently designed a small board that contained multiple instances > of a devices that utilized copper on the bottom layer for heat > dissipation (not ground). I ended up using closed loop trace around > these large pads as a keep

Re: gEDA-user: Copper-free area in footprint

2010-05-03 Thread John Luciani
On Mon, May 3, 2010 at 12:49 PM, Tamas Szabo wrote: > John Luciani wrote: >> >> On Mon, May 3, 2010 at 12:12 PM, Tamas Szabo wrote: >>> >>> My best idea is, that I do it by pads which have a zero width and a >>> specified clearance. Unfortuna

Re: gEDA-user: Copper-free area in footprint

2010-05-03 Thread John Luciani
On Mon, May 3, 2010 at 12:12 PM, Tamas Szabo wrote: > > My best idea is, that I do it by pads which have a zero width and a > specified clearance. Unfortunately, those will have a rounded corner, so > rectangular corner seems impossible (I can reduce the radius, if I make it > from more pieces, bu

Re: gEDA-user: help needed regarding PCB componet

2010-04-20 Thread John Luciani
My SQFP-50P-1480L1-1480L2-80N looks like it could work (see http://www.luciani.org/geda/pcb/pcb-footprint-list.html). Double-check the dimensions against your component and process specs. (* jcl *) -- Closed Tools + Open Files != Open Hardware You can't create open hardware with closed EDA too

Re: gEDA-user: Footprint with asymmetric solder mask

2010-04-13 Thread John Luciani
2010/4/13 SZABO Tamas : > Hi, > > I would like to create a footprint where the pad is not in the center, and it > is not symmetric for all sides. > > Is it possible somehow? You can overlay multiple pads. Give each pad the same pin number. (* jcl *)

Re: gEDA-user: complete project sample?

2010-04-10 Thread John Luciani
On Sat, Apr 10, 2010 at 9:48 PM, DJ Delorie wrote: > > Yes, I got microsd working. Next time, though, I'm putting a P-MOSFET > on the power line so I can software power cycle it. > http://www.delorie.com/tmp/microsd.c Excellent. Thanks!!! I will give this a try tomorrow. I made the same omissio

Re: gEDA-user: complete project sample?

2010-04-10 Thread John Luciani
On Sat, Apr 10, 2010 at 6:58 PM, DJ Delorie wrote: > >> I can think of a few uses for your USB GPIO pod!-Patrick > > I use it mostly for testing out new components. I have added a > micro-sd module for it, and most recently it's wired up to a new > ethernet chip from micrel. Do you have uSD code

Re: gEDA-user: complete project sample?

2010-04-10 Thread John Luciani
I used gEDA/PCB to do a remix of ladyada's drawdio remix. The zip file contains the schematic (with embedded symbols) and the PCB file. No gerbers but just do an export from the PCB menu. The documentation file contains hard copies of the schematic, board layout and bom. Each line item in the bom i

Re: gEDA-user: paid help?

2010-04-06 Thread John Luciani
I have 1000 or so footprints at http://www.luciani.org/geda/pcb/pcb-footprint-list.html The gEDA scripts and libraries that I use are also on the site. Stefan's 15min-90min estimate for footprint creation seems about right. With a script you can generate families of footprints and amortize that ti

Re: gEDA-user: Funding for server

2010-03-15 Thread John Luciani
Popup ads and ads intermixed with gEDA content would be distracting but I don't believe that is what is being suggested. A sidebar of text ads does not seem bad. Occasionally useful and easy to ignore. (* jcl *) -- You can't create open hardware with closed EDA tools. twitter: http://twitter.c

Re: gEDA-user: solder paste output (was: Open Source mech)

2010-03-10 Thread John Luciani
I was thinking of a post-processing script. For each footprint you would look up to see if there was a corresponding stencil footprint (maybe a .sfp file). If there was that would be used. If not then a rule would be applied to create the pattern. You could have specific rules for groups of compon

Re: gEDA-user: Looking for my first fab shop.

2010-03-08 Thread John Luciani
I would also go with fast and quality for the reasons that Dave stated. I would use PCB Express or Advanced Circuits. Highest quality boards in 2-5 days (depending on service). If you have more than one design panelize and cut them yourself. If you have friends that want PCBs group all your design

Re: gEDA-user: TO-92 Best Practices

2010-03-03 Thread John Luciani
I have been using the Bausch & Lomb Magna Visor Magnifying Visor 81-42-00 It is $40 from Amazon and comes with three lenses. Works very well. I keep one in the garage (woodshop) and one on my bench. I also use the Luxo 17113 (magnifier + light). (* jcl *) -- You can't create

Re: gEDA-user: TO-92 Best Practices

2010-03-02 Thread John Luciani
On Tue, Mar 2, 2010 at 1:25 AM, Donald Tillman <[1]...@till.com> wrote: On Feb 27, 2010, at 3:57 PM, John Luciani wrote: I use two different footprints. Both footprints have the pins inline. One footprint spaces the leads 1.39mm the other 2.60mm. The 2.60mm

Re: gEDA-user: TO-92 Best Practices

2010-02-27 Thread John Luciani
On Sat, Feb 27, 2010 at 6:27 PM, Donald Tillman <[1]...@till.com> wrote: Hey folks, What's considered Best Practices for TO-92 packages? I use two different footprints. Both footprints have the pins inline. One footprint spaces the leads 1.39mm the other 2.60mm. The 2.60m

Re: gEDA-user: I am such a troll for posting to slashdot

2010-02-27 Thread John Luciani
equivalents. Obviously I can't just rip off XCircuit symbols with a converter, but I'll see if I can see about producing similarly styled graphics in gEDA using paths. (I might trace some bits). It is about time we had some pretty symbols ;). John Lucia

Re: gEDA-user: I am such a troll for posting to slashdot

2010-02-27 Thread John Luciani
Without a Windows port you will have a beginners interface (and documentation) but no beginners ;) I have talked to a lot of people at the Arduino Users Group and at dorkbot and the majority are Windows, a fair number on MAC and a few on Linux. Eagle has done excellent marketin

Re: gEDA-user: any last minute advice prior to sending out for PCB fab

2010-02-25 Thread John Luciani
Fiducials and Keepouts -- The last mfg I dealt with recommended that the fiducial be a copper circle with a diameter between 0.5mm and 3.5mm and that the solder mask diameter be three times larger than the copper. I made a single 1mm pad footprint with the 3mm clearance. IIRC the

Re: gEDA-user: any last minute advice prior to sending out for PCB fab

2010-02-23 Thread John Luciani
Check the gerbers and drill files using gerbv. I use a script that zips and renames all the files for the fab house. I take the zip file that is created, unzip it and check those files with gerbv. For a system of boards that plug into each I might panelize them so that they all al

Re: gEDA-user: PCB Prototype houses that do 0.031" boards?

2010-02-17 Thread John Luciani
On Wed, Feb 17, 2010 at 2:52 PM, Jason <[1]g...@lakedaemon.net> wrote: Bob Paddock wrote: Anyone know of a proto-house that will do 0.031" thick boards? Advanced Circuits [2]http://www.4pcb.com will do them, you just have to move away from the prototype stovepipe (no solderm

Re: gEDA-user: Seeking Xicon 42IF footprint

2010-02-14 Thread John Luciani
On Sun, Feb 14, 2010 at 3:23 PM, David Griffith <[1]dgri...@cs.csubak.edu> wrote: On Sun, 14 Feb 2010, John Luciani wrote: Does anyone have a ready-made footprint for the Xicon 42IF series of transformers? That looks similar to the package for the Toko Inductors I u

Re: gEDA-user: Seeking Xicon 42IF footprint

2010-02-14 Thread John Luciani
That looks similar to the package for the Toko Inductors I used on a Theremin. Check the inductor section at [1]http://www.luciani.org/geda/pcb/pcb-footprint-list.html (* jcl *) On Sun, Feb 14, 2010 at 1:43 PM, David Griffith <[2]dgri...@cs.csubak.edu> wrote: Does anyone

Re: gEDA-user: OT: Latex

2010-02-06 Thread John Luciani
On Sat, Feb 6, 2010 at 2:10 PM, gene glick <[1]carzr...@optonline.net> wrote: Dave McGuire wrote: First off, thanks for the input from all. So you write in a text editor, add in your own codes? I write a lot of macros. If you decide to use EMACS I would highly recommend

Re: gEDA-user: OT: Latex

2010-02-06 Thread John Luciani
On Sat, Feb 6, 2010 at 6:26 AM, gene glick <[1]carzr...@optonline.net> wrote: Do you all use Latex for editing docs, or maybe open office or other? I'm getting fed up with the open office bugs and starting to think that Latex is a better alternative. Busy compiling Lyx as we

Re: gEDA-user: Pin pads on only one side

2010-01-31 Thread John Luciani
On Sat, Jan 30, 2010 at 8:10 PM, Phil Frost <[1]ind...@bitglue.com> wrote: Is there some way to instruct PCB to put a copper pad for through-hole pins only on the bottom of the board? I'm etching two sided boards, and I don't solder to the top side since it makes rew

Re: gEDA-user: [SOT] suggestion for a SMT switch

2010-01-02 Thread John Luciani
Why wouldn't you use the transistor or the FET? An MMBT3904 or an N-channel FET is more suitable for this application than a 1G125. I would go with the MMBT3904 since you have a low voltage system. I used these to drive pager motors in a haptic compass. I am not sure about

Re: gEDA-user: gschem rotate symbol 45 degrees

2009-12-29 Thread John Luciani
You will have to make rotated symbol. When you rotate a component that has both end points on grid at least one end point will be off grid unless the rotation is by an integer multiple of 90 degrees. (* jcl *) -- You can't create open hardware with closed EDA tools. twit

Re: gEDA-user: Multiple copies of single, small board

2009-12-23 Thread John Luciani
For 20 identical copies I would just do it manually. It would be about five minutes of work. I place a 50mil space between copies. This enables me to make a single cut (between rows/cols) with a hacksaw blade. I place copper at least 25mils from the edge (typically 50mils). If I

Re: gEDA-user: Footprint recognition

2009-12-16 Thread John Luciani
2009/12/16 Goran Meki� <[1]m...@ns-linux.org> � � Is there a way to recognize what footprint I need for an element other then printing them all and comparing it to real element? Let's say it's 2200uF polar cap. I know it's RCY*, but how to figure out what's *? Th

Re: gEDA-user: "Analog" books

2009-11-24 Thread John Luciani
On Tue, Nov 24, 2009 at 9:34 AM, Karl Hammar <[1]k...@aspodata.se> wrote: Can anyone recommend some good books on analog circuit design for audio, precision/low noise op.amp., emc, active filters and similar ? National Semiconductor use to publish the "Audio/Radio Handboo

Re: gEDA-user: Footprint requests for pcb

2009-11-24 Thread John Luciani
On Tue, Nov 24, 2009 at 3:13 AM, Anthony Shanks <[1]yamazak...@gmail.com> wrote: Sorry but can you give me a direct link? I can't find it on the site. [2]http://www.luciani.org/geda/pcb/pcb-footprint-list.html (* jcl *) -- You can't create open hardware with closed E

Re: gEDA-user: Footprint requests for pcb

2009-11-23 Thread John Luciani
I should have the 2.1mm jack and the SC70-5 at [1]luciani.org (* jcl *) -- You can't create open hardware with closed EDA tools. twitter: [2]http://twitter.com/jluciani blog:[3]http://www.luciani.org References 1. http://luciani.org/ 2. http://twitter.com/jluciani

Re: gEDA-user: OT: Learning Scheme? WAS: How to deal with single/dual parts?

2009-11-22 Thread John Luciani
You could also try some of the links at [1]http://www.schemers.org (* jcl *) -- You can't create open hardware with closed EDA tools. twitter: [2]http://twitter.com/jluciani blog:[3]http://www.luciani.org References 1. http://www.schemers.org/ 2. http://twitter.com/jl

Re: gEDA-user: How to deal with single/dual parts?

2009-11-20 Thread John Luciani
On Fri, Nov 20, 2009 at 6:46 AM, Dan McMahill <[1]...@mcmahill.net> wrote: Michael Sokolov wrote: > Bill Gatliff <[2]b...@billgatliff.com> wrote: > >> Now I'm beginning to see the problems with slotting and symbols the way >> we're doing them now: they unnecessarily tie th

Re: gEDA-user: Cheaper right angle component video terminal?

2009-11-16 Thread John Luciani
On Mon, Nov 16, 2009 at 5:16 PM, Ben Jackson <[1]...@ben.com> wrote: On Mon, Nov 16, 2009 at 01:47:48PM -0800, Anthony Shanks wrote: > I see, I actually like the black frame, I was just interested if any > company sold them for cheaper. I'll just use the digikey part. I'm sure t

Re: gEDA-user: missing pcb footprints.

2009-10-26 Thread John Luciani
I put all of the footprint files (or symlinks) that I use for production boards in a single directory. I also use descriptive footprint names. To find a footprint I use dired mode in EMACS. Very easy to find to footprints. For semiconductors and some specialized components I add

Re: gEDA-user: .pcb question

2009-10-25 Thread John Luciani
On Sun, Oct 25, 2009 at 4:15 PM, Gene Heskett <[1]gene.hesk...@verizon.net> wrote: On Sunday 25 October 2009, John Luciani wrote: >I am not sure if the Roland uses NGC or some other format. >The commands looked a lot plotter control commands to >me. Me ei

Re: gEDA-user: .pcb question

2009-10-25 Thread John Luciani
There is a python script, from the MIT Media Lab, that converts Gerber files into a format used by a Roland milling machine. The python script is at [1]http://web.media.mit.edu/~neilg/fab/dist/cam.py I am not sure if the Roland uses NGC or some other format. The commands looked a

Re: gEDA-user: net= attributes, symbols and schematics

2009-10-19 Thread John Luciani
On Thu, Oct 15, 2009 at 2:54 PM, Stephen Williams wrote: > > I was thinking about multi-part symbols, actually. It would be > kool to draw a symbol for all the business pins and another symbol > for the power pins. Then I could have a sheet just for power/gnd. This is what I would do. I would als

Re: gEDA-user: gsch2pcb shorting circuits in netfile

2009-10-18 Thread John Luciani
Open up the symbols in a text editor and see if there are net name attributes attached to the connector pins. If there are then just remove them. (* jcl *) -- You can't create open hardware with closed EDA tools. twitter: http://twitter.com/jluciani blog:http://www.luciani.org __

gEDA-user: [OT] MIT Great Glass Pumpkin Patch

2009-10-04 Thread John Luciani
Photos from the 2009 MIT Great Glass Pumpkin Patch are [1]http://www.luciani.org. Also a couple of photos from the MIT museum. (* jcl *) -- You can't create open hardware with closed EDA tools. twitter: [2]http://twitter.com/jluciani www: [3]http://www.luciani.org Referenc

gEDA-user: gschem/PCB mentioned in pocsci (linked from Make Blog)

2009-10-02 Thread John Luciani
[1]http://blog.makezine.com/archive/2009/10/how_to_-_get_professionall y_printed.html [2]http://www.popsci.com/diy/article/2009-09/getting-your-circuit-boar ds-professionally-printed (* jcl *) References 1. http://blog.makezine.com/archive/2009/10/how_to_-_get_professionally_p

Re: gEDA-user: pcb drill size and finished hole size

2009-08-26 Thread John Luciani
On Wed, Aug 26, 2009 at 8:23 PM, gene glick <[1]carzr...@optonline.net> wrote: how much does plating reduce the hole size? It just occurred to me that I have to allow for some reduction in finished hole size due to the plating and whatever other stuff goes on.

Re: gEDA-user: EPS Printing of PCBs

2009-08-18 Thread John Luciani
On Tue, Aug 18, 2009 at 6:39 PM, DJ Delorie <[1...@delorie.com> wrote: as-shown uses the board's ShowSolderSide flag (the tab key changes this) to decide which side to print. I don't know of a way to force that flag from the command line, but I suppose you could perl-

gEDA-user: EPS Printing of PCBs

2009-08-18 Thread John Luciani
I use the commands pcb -x png --only-visible --ben-mode --dpi 600 pcb -x png --only-visible --ben-mode --ben-flip-x --dpi 600 to generate top and bottom pictures for PCB layouts. I would like to get EPS files instead of PNGs. Are there EPS printing options for this? The co

Re: gEDA-user: B9A pin base

2009-08-03 Thread John Luciani
2009/8/3 Goran Meki� <[1]m...@ns-linux.org> � � Does anyone has B9A pin base (12AX7 tube, for example) for pcb? I've searched everything that came to my mind, but found nothing. How to put tube on a PCB (software, not the real board), anyway? Thanx! I wrote a script th

Re: gEDA-user: placing a connector footprint "out" of a board

2009-08-02 Thread John Luciani
I do this all the time (even as we speak ;) You need to find out how the manufacturer wants you to specify the board perimeter. With PCB Express I place a one mil line on the top layer. (* jcl *) -- You can't create open hardware with closed EDA tools. [1]http://www.luciani

Re: gEDA-user: RFC refdes positions on pcb

2009-07-30 Thread John Luciani
On Thu, Jul 30, 2009 at 6:35 AM, gene glick <[1]carzr...@optonline.net> wrote: John Luciani wrote: >Since S6.S401 is repeated for all refdeses can you just put a box >around the sub-circuit and label it S6.S401? You could then replace the three >

Re: gEDA-user: RFC refdes positions on pcb

2009-07-30 Thread John Luciani
On Wed, Jul 29, 2009 at 10:21 PM, gene glick <[1]carzr...@optonline.net> wrote: Any comments on this sort of refdes position? [2]http://geocities.com/motorcity/9424/geda/refdes_sample.png I would find it difficult to use. Rather than reading a refdes you have to perform

Re: gEDA-user: sharing presentation materials for gEDA talks

2009-07-29 Thread John Luciani
There is a video of Stuart's gEDA presentation at [1]http://tinyurl.com/bbt2rc This was from Ignite Boston, Feb 2009. (* jcl *) -- You can't create open hardware with closed EDA tools. [2]http://www.luciani.org References 1. http://tinyurl.com/bbt2rc 2. http://www.luci

Re: gEDA-user: one year later...

2009-07-24 Thread John Luciani
Are you sure that was a tornado? Looking at those pictures it appears to be a message from aliens addressed to William Hemmel ;) (* jcl *) -- You can't create open hardware with closed EDA tools. [1]http://www.luciani.org References 1. http://www.luciani.org/ __

Re: gEDA-user: gerbv-2.3.0 released

2009-07-14 Thread John Luciani
On Tue, Jul 14, 2009 at 1:17 PM, Dan McMahill <[1]...@mcmahill.net> wrote: John Luciani wrote: >On Tue, Jul 14, 2009 at 2:07 AM, Dan McMahill <[1][2]...@mcmahill.net> >wrote: > >Mark Rages wrote: >> What is the lik

Re: gEDA-user: gerbv-2.3.0 released

2009-07-14 Thread John Luciani
On Tue, Jul 14, 2009 at 11:10 AM, DJ Delorie <[1...@delorie.com> wrote: > Can PCB plot gerber files from the command line? It can't read a gerber file and plot it, if that's what you mean. It always loads a .pcb and does whatever with it. Sorry for the poor choice of

Re: gEDA-user: gerbv-2.3.0 released

2009-07-14 Thread John Luciani
On Tue, Jul 14, 2009 at 2:07 AM, Dan McMahill <[1]...@mcmahill.net> wrote: Mark Rages wrote: > What is the likelihood of moving --photo-mode from pcb to gerbv where > it belongs? don't know about *moving* it. I'm certainly not opposed to *adding* it to gerbv tho

Re: gEDA-user: Where can I buy wire like that used for leads on components?

2009-07-10 Thread John Luciani
On Fri, Jul 10, 2009 at 9:19 PM, Michael B Allen <[1]iop...@gmail.com> wrote: Where can I find wire like that used for smallish ceramic disc capacitors and other similar components? I don't care if it's insulated but insulated wire is almost always copper which is not as

Re: gEDA-user: More robust support of multi-part symbols.

2009-07-08 Thread John Luciani
On Wed, Jul 8, 2009 at 2:36 PM, John Doty <[1]...@noqsi.com> wrote: On Jul 8, 2009, at 12:25 PM, John Luciani wrote: >Putting vendor information into the schematic is not a good idea. > True, but... Using your project symbols as capsules for that data i

Re: gEDA-user: More robust support of multi-part symbols.

2009-07-08 Thread John Luciani
On Wed, Jul 8, 2009 at 2:08 PM, Bill Gatliff <[1]b...@billgatliff.com> wrote: John Luciani wrote: >aggregates the attributes manufacturer and manufacturer_part_number, > Are those two attributes a common convention? I've been using

Re: gEDA-user: TI's "SOT25" DBV footprint...

2009-07-08 Thread John Luciani
I would keep the footprint pin numbering consistent with the schematic symbol and datasheet pin numbering. If that means additional symbols and footprints then I would create them. If there are differences between mfgs of the same part number then I would attach a mfg suffix t

Re: gEDA-user: More robust support of multi-part symbols.

2009-07-08 Thread John Luciani
This sounds good to me. If some of this code is used by the BOM utility then aggregating other attributes by refdes could be useful. I have my own BOM script that aggregates the attributes manufacturer and manufacturer_part_number, in a hash, by refdes. (* jcl *) -- You can

Re: gEDA-user: MOSFET high-side driver schematic symbol suggestion?

2009-07-06 Thread John Luciani
I would use the square box with pins too. (* jcl *) -- You can't create open hardware with closed EDA tools. [1]http://www.luciani.org References 1. http://www.luciani.org/ ___ geda-user mailing list geda-user@moria.seul.org http://

Re: gEDA-user: Toporouter Updates

2009-07-02 Thread John Luciani
On Thu, Jul 2, 2009 at 1:55 PM, Eric Brombaugh <[1]ebrombau...@cox.net> wrote: Anthony Blake wrote: > By the way, the LCD project was very cool. Will the board be available > at some stage? That's my intent. I've got it pretty much ready to go now, but BatchPCB's DRC

Re: gEDA-user: RFC: Towards a better symbol/package pin-mapping strategy

2009-06-29 Thread John Luciani
On Sun, Jun 28, 2009 at 9:46 PM, Dan McMahill <[1]...@mcmahill.net> wrote: For transistors and IC's, I have no problems with the "enumerate them all" approach I've taken. This is what I been doing too. All semiconductors are enumerated. Since all of the graphics are

Re: gEDA-user: cylindrical SMT power resistor pad design: how to do a semi-circular cutout

2009-06-27 Thread John Luciani
On Sat, Jun 27, 2009 at 7:26 AM, S. Aguinaga <[1]sa...@yahoo.com> wrote: I need to create a footprint for a cylindrical SMT resistor. Do you fellows have some pointers for me to generate the semi-circular cut out? You won't be able to get a circular cut-o

Re: gEDA-user: Handling odd solder paste shapes

2009-06-25 Thread John Luciani
On Thu, Jun 25, 2009 at 8:24 PM, DJ Delorie <[1...@delorie.com> wrote: Picoliters? All we need now is an inkjet printer that can print solder paste instead of ink. At Vicor we had a robot with a syringe that dispensed solder paste dots. (* jcl *) -- You can't create

Re: gEDA-user: Handling odd solder paste shapes

2009-06-25 Thread John Luciani
On Thu, Jun 25, 2009 at 12:24 PM, DJ Delorie wrote: > Me, I have a perl script that post-processes that layer to adjust the > sizes for the paste I want. I was thinking of doing a Perl script that would substitute stencil footprints (.sfp) if they were found. Otherwise a generic adjustment would

Re: gEDA-user: CNC Milling

2009-06-19 Thread John Luciani
The Fab Lab in Boston uses a Roland Modela MDX-20. There is a python script that translates the gerber files that Eagle creates into routing commands (http://web.media.mit.edu/~neilg/fab/dist/cam.py). I brought a couple of Gerber files (created with gEDA/PCB) to try routing a board using the milli

Re: gEDA-user: [PCB] netlist corrupt??

2009-06-17 Thread John Luciani
Are routing traces with "new lines clears polygons" enabled? My guess (without seeing the board) is that you have a trace or piece of a trace underneath a pin or a pad. If there is a polygon near it may produce a short. (* jlc *) ___ geda-user mailing

Re: gEDA-user: Question about gschem DRC errors when using separate power pin symbols.

2009-06-11 Thread John Luciani
Did you change the slot attribute for each of the comparators? (* 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/listinf

gEDA-user: IPC Least/Nominal/Most

2009-06-11 Thread John Luciani
For hand soldering which footprint variation are people using? My existing passive footprints are very generous in length making for very easy assembly by hand. I would like to get some smaller footprints that are not too difficult for hand assembly. The IPC M footprints do not look too difficult.

gEDA-user: Narrow Pads in RESC1608L

2009-06-10 Thread John Luciani
I am wondering if the RESC1608L pad length is correct. The difference between the RESC1608L and CAPC1608L is apx 30%. The difference between RESC2012L and CAPC2012L is about 10%. I have not looked at heights or calculated the values using the IPC-7351 equations. The RESC1608L pads look very narrow

Re: gEDA-user: Soldering supplies

2009-06-10 Thread John Luciani
On Wed, Jun 10, 2009 at 11:24 AM, Frank Miles wrote: > Since DJ mentioned impedance level concerns associated with different kinds > of flux: please note that the flux pen shown in John Luciani's generally > excellent recommendations leads to seriously low electrical conductivity. > [At least for h

Re: gEDA-user: Soldering supplies

2009-06-10 Thread John Luciani
On Wed, Jun 10, 2009 at 9:19 AM, DJ Delorie wrote: > >> Well said. Tiny tips and tiny solder are the wrong approach. > > Of course, size is relative. 0.020" solder and 0.020" tip come in > handy when soldering 0201 or 0402 parts, or trying to fix a single pin > on 0.5mm pitch. And when trying to

Re: gEDA-user: Soldering supplies

2009-06-09 Thread John Luciani
The supplies and tools I use for SMT assembly are listed at http://tinyurl.com/5foeou (* 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

Re: gEDA-user: Surface mount footprint pin pitch changes at different magnifications in PCB

2009-06-05 Thread John Luciani
hostview to view and print postscript files. Also I have a postscript cartridge in my printer. (* jcl *) On Fri, Jun 5, 2009 at 4:33 PM, John Luciani <[1][2]jluci...@gmail.com> wrote: On Fri, Jun 5, 2009 at 4:27 PM, Rob Butts <[1][2][3]r.but...@gmai

Re: gEDA-user: Surface mount footprint pin pitch changes at different magnifications in PCB

2009-06-05 Thread John Luciani
On Fri, Jun 5, 2009 at 4:27 PM, Rob Butts <[1]r.but...@gmail.com> wrote: I'm exporting a postscript file and then converting that to a pdf with the ps2pdf command. I then come up in windows and print the file to my Samsung laser printer. I have to do this be

Re: gEDA-user: Unplated pin with one-side copper ring

2009-06-01 Thread John Luciani
On Mon, Jun 1, 2009 at 8:35 AM, Tamas Szabo <[1]sza2k...@freemail.hu> wrote: Hi, Can I make a pin without plating and put the footprint only to the component side? If yes, how can I do it? It sounds like you want a copper ring with an unplated hole. IIRC pins create co

Re: gEDA-user: PCB layout for dc/dc-switching converter

2009-05-29 Thread John Luciani
On Fri, May 29, 2009 at 10:35 AM, Stefan Salewski <[1]m...@ssalewski.de> wrote: On Fri, 2009-05-29 at 09:41 -0400, John Luciani wrote: > It would be difficult to get that exact layout with real components > but you should be able to get very close. Yes. My shield

Re: gEDA-user: PCB layout for dc/dc-switching converter

2009-05-29 Thread John Luciani
It would be difficult to get that exact layout with real components but you should be able to get very close. I would be surprised if you see a difference between connecting a pad with two or three 10mil traces and a solid plane. I would worry more about the problems caused with han

Re: gEDA-user: Breadboard drawings with pcb?

2009-05-25 Thread John Luciani
On Mon, May 25, 2009 at 5:05 PM, Josef Wolf <[1...@raven.inka.de> wrote: On Mon, May 25, 2009 at 02:52:31PM -0400, John Luciani wrote: > For the PCB layout I would make a breadboard footprint (along the lines of > the patterns of *[2]http://tinyurl.com/5bxzgh

Re: gEDA-user: Breadboard drawings with pcb?

2009-05-25 Thread John Luciani
For the PCB layout I would make a breadboard footprint (along the lines of the patterns of [1]http://tinyurl.com/5bxzgh ). (* jcl *) -- You can't create open hardware with closed EDA tools. [2]http://www.luciani.org References 1. http://tinyurl.com/5bxzgh 2. http://www

Re: gEDA-user: Outsourcing PCB layout

2009-05-21 Thread John Luciani
On Thu, May 21, 2009 at 7:10 PM, Kai-Martin Knaak <[1]...@familieknaak.de> wrote: On Thu, 21 May 2009 19:02:04 +, Michael Sokolov wrote: > [2]http://ifctfvax.Harhan.ORG/OpenSDSL/OSDCU/OSDCU-AA.bom > [3]http://ifctfvax.Harhan.ORG/OpenSDSL/OSDCU/shortbom.txt Thanks. I'

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