Jon Elson wrote: > I have been working on a drive for brushless servo motors. I just got the > prototype running, and I am impressed by how well it is working, > already. I'm working with a Pittman 4443 motor I got on eBay a while > ago. These would make great motors for small routers and desktop > mills. They are NEMA size 17 but long. Amazingly, the VHDL code for > the drive's CPLD worked first time! I sure didn't expect that! So, I am > already at the step to design a board for it. > > Jon
Sounds interesting. Sinusoidal commutation? Perhaps throw a page together to show your progress ;) I very reluctantly put steppers on my Leadwell VMC wghen I could not find drivers I would be SURE would work with the original motors. (300w, Halls + encoders 5000ppr). Still it's now almost earned some new motors. Wayne.... -- --------------------------------------------------------------------------- Wayne M Weedon Email: [EMAIL PROTECTED] Fdos Design Poole UK Tel +44-1202-677025 Fax +44-1202-770515 Mobile: 07774 439915 Specialists in small batch & Production Mechanical/Electrical Engineering --------------------------------------------------------------------------- ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
