Hi Mike, I experimented with the Sigma motors on my Bridgeport and found the best overall performance was by just using 2 coils: 2 connected to phase A+ 8...
I did not have success with gecko drives on my bridgeport. IF YOU do run them make sure to heat sink them with a fan. I lost 4 total... Larken Cobra drives...
This list is for the discussion of CNC and related topics including CAD, CAM, EDM, & DRO. The list focuses on the construction of home shop CNC machines along...
CAD_CAM_EDM_DRO@yahoo...
Apr 1, 2004 10:23 am
71667
Hi David, So far I have had no problems with my Geckos at full current and 75V. They do need reasonable heatsinking though. I used a 300mm x 200mm piece of 3mm...
Hi Les, I sold off my original steppers, wish I could try that( your suggested ) combo again. Is yours a series I or II? table weight may be the difference....
Did approximately the same on mine with similar results. Rapids were even faster if I remember right. Mill currently under reconstructive surgery ;-( Jeff ......
... Just a note to clarify things about the TNG: "Dead" simply means that there won't be another version of the TNG released. That doesn't mean it is useless....
... Is this what you tried? http://lists.sourceforge.net/lists/listinfo/emc-users If that doesn't work for you, there are links to the list administrators at...
Hi Les, You brought up a really good point I dont think we've considered on these retrofits: specifying if its a seriesI or a II for these stepper wiring. My...
... There are some things you need to understand about the BOSS. The transformer and rectifier will not be sharing the load between all 3 phases. I think the...
... No, you most likely couldn't! EMC requires a REAL TIME kernel. This requires patching the kernel source code and recompiling. It is extremely tricky to...
... Yes, of course, the Gecko 201A drives DO run hot at higher currents. You need large heat sinks with fan cooling for sure. I have a heat sink 8" by 4" for...
... The technical differences aren't all that significant. Either one will work. I prefer RTAI because they are true open source. The folks who did RTLinux...
... Yes, that's right. These apply patches to 30+ kernel source files, then the kernel must be compiled using the libraries that were intended for use with ...
BDI-Live is based on Morphix http://www.morphix.org which is derived from Knoppix. However, Morphix has several features that make it far more attractive for...
I intend to clamp a wire-wound resistor across the filter cap on my 68.7v DC PS. I have 3 75v 2A servos running. Assume the purpose of this is to absorb energy...
This is not correct, because you are using a "power" equation on a device that doesn't use power. The equations you cite are used for calculating the way max...
OK, fair enough, but: If you look at the A ratings listed on the side of the relay you get; 35A @ 277 VAC 15A @ 600 VAC Calculated out very close mathematical...
Michael: Your questions, as good questions always should, made me start thinking even more about this-and as usual, when I think, I realize just how little I ...
I am new at cad cam. I have a pc running windows 98. I bought Bob/Cad version 18 to do my cad cam. I thought that it would make my G code and it would also do...
Sounds like you need a machine controller-general favorites here seem to be either EMC for Linux, or Mach2 for Windows(but I don't think it will work under...
Andy: Your are correct. Mach2 will NOT run on Win98. It requires it's pulse driver to run at ring 0 and only W2K and later will do that. Theres also TurboCNC...
... No, absolutely not. The ratings of relays, especially for DC current breaking applications, is not anything like Ohm's law. A 28 V relay cannot be used...
Hi, I have now completed the development and testing of the DigiSpeed DC motor speed controller. Its purpose is to allow spindle speed control from CNC ...
I started out hacking a gamepad, burned up the one I purchased tinkering with a power supply and meter. Now I have been directed to the site showing pinouts on...
I agree with Jon. Another point: DC arcing will tend to pit the contacts with microscopic "dimples". After a while, the two surfaces of the contact are not...
