Hey Michael, I too am in the Houston area. Specifically I live in Pecan Grove in Richmond. I shop at EPO on Fondren quite often. Maybe I'll see you there sometime. Regards, Jim -----Original Message----- From: michael brown To: PICLIST@MITVMA.MIT.EDU Date: Saturday, February 23, 2002 9:47 PM Subject: Re: [EE]: Some stepper motor advice, please >> Michael- >> Glad things are working out. I have been playing with floppy steppers, >and they >> are probably ok for my application, but where did you get the 'real stump >> pullers' - I think I could afford $7 each ;-) >> David > >I got them from a surplus store here in houston. They seem to have come >from some type of medical machine. There is a nifty assembly attached that >with about 15 or 20 little "fingers" in a line. When the motor turns, the >"fingers" move up and down in a moving sine wave type pattern. They were >used as a pump in some type of dialysis or bypass machine. > >I probably shouldn't have called them stump pullers, but they are >significantly more powerful than the only slightly smaller floppy motors. >They've had these for over a year, and they don't seem to be selling too >fast. However, some engineer, selling 8052-type development boards just put >together a demo using one of those stepper motors, so they might dry up >quick. You just never know. > >I got them from Electronic Parts Outlet (aka EPO) here in houston. If you >need, I could get their phone number for you, or even get some and ship them >to you. They are used and asis, but the two that I got work fine. > >BTW, do you know any way to get them to quiet down or to turn more smoothly. >I am already half stepping them, but that is just not as smooth as I'd like. > >michael > >-- >http://www.piclist.com hint: The PICList is archived three different >ways. See http://www.piclist.com/#archives for details. > > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.