Hi Kevin... I dont really pay much attention to the tool tables for drilling.... I have a box of #59 pcb drills and use those for everything... some things need to be a little bigger like TO-220 packages, and I just enlarge them by hand with a twist drill as needed. The #59 is a little large for 1/4w resistors and IC sockets, but it works ok. I have been keeping an eye open for a cheap box of #63 drills. If you load the eagle files, you should be able to look at the hole sizes used by the various packages in the eagle library(s). cheers
On Sun, 2008-11-16 at 12:27 -0600, Kevin Pauba wrote: > Thanks for the reply Lawrence! > > I have studied the code and consider this very fine work. It's admirable > that you've donated your time to share the knowledge. > > The gcode from the project was among the first I loaded into AXIS to > simulate milling the circuit board. BTW, did you happen to have the tool > table that was used to drill the board? That would help to determine the > hole diameters being drilled. > > Thanks again! > > On Sun, Nov 16, 2008 at 11:38 AM, Lawrence Glaister <[EMAIL PROTECTED]> wrote: > > > snip... > > Hi Kevin, > > If you have servo motors in the 12 to 24 volt range needing less than 5 > > amps current, (50-100w servo), and you enjoy playing with pics, the > > dspic servo is a great little project. It can be built using samples for > > most of the components. It is not the most efficient output stage as it > > uses a linear current source to drive the motors. You will need > > heatsinks and possibly a computer fan to keep things cool. The code is > > not that complicated on the pic, and it is fully open source, so you may > > be interested in building one or more to play with. I know of at least 3 > > tabletop machines that are using the amps. Power supplies can be put > > together cheaply by rewiring typical ham radio 12 volt linear supplies > > to generate +-25volts. (18vac transformer into a bridge rectifier and 2 > > capacitor banks). I am usually on the emc and emc-devel irc channels > > during the day if you have more questions. > > > > cheers > > LawrenceG > > > > > Regarding the step & direction servos ... > > > > > > Having worked with PIC microcontrollers in the past, I was interested in > > > maybe constructing the dspic-servo board (which uses the type 2 stepper > > > signals). In your opinion, would I be better off with one of the other > > > options you offered? > > > > > > Any feedback is appreciated. > > > > > > Thanks! > > > ------------------------------------------------------------------------- > > > This SF.Net email is sponsored by the Moblin Your Move Developer's > > challenge > > > Build the coolest Linux based applications with Moblin SDK & win great > > prizes > > > Grand prize is a trip for two to an Open Source event anywhere in the > > world > > > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > > > _______________________________________________ > > > Emc-users mailing list > > > [email protected] > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > -- > > > > ===================================================================== > > Lawrence Glaister VE7IT mailto:[EMAIL PROTECTED] > > 1462 Madrona Drive > > Nanoose Bay, B.C. http://members.shaw.ca/swstuff > > Canada V9P 9C9 http://gspy.sourceforge.net > > ===================================================================== > > > > > > ------------------------------------------------------------------------- > > This SF.Net email is sponsored by the Moblin Your Move Developer's > > challenge > > Build the coolest Linux based applications with Moblin SDK & win great > > prizes > > Grand prize is a trip for two to an Open Source event anywhere in the world > > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users -- ===================================================================== Lawrence Glaister VE7IT mailto:[EMAIL PROTECTED] 1462 Madrona Drive Nanoose Bay, B.C. http://members.shaw.ca/swstuff Canada V9P 9C9 http://gspy.sourceforge.net ===================================================================== ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
