I found this post in sci.optics, and since there seems to be a lot of discussions on this stuff I thought I'd forward this to see if this is really something that might be used for a tele drive??? Bill Marriott btk@ix.netcom.com
"Spending $700, $800, or even $1000 on "brand-name" micro-stepping motors and controllers ? You can get at least 10 times the performance per dollar with this ensemble. No unreasonable repair bills when the driver fails. High Indent torque. Designed for long continuous life. Impeccible quality ! And, no lethal or line-referenced voltages appearing uninvited on your equipment or experiment !
MOTOR: 50 oz-in 500 step Oriental Motor 5 phase Powerful (Berger-Lahr design), 4‡ cont.-duty .75A rated motor. 1" by 0.25" Shaft, 20" cable. 0.72°/step. Prec. Ball-Bearings. 24T -belt pulley. Unused
DRIVER CARD: NEC Switch-Mode, Current Regulating 6.75"x 8.75" Driver Card. Takes 12-28 VDC1.5 A., TTL inputs: "Step-up", "Step-down", "Disable" Safe, unlike designs using rectified line voltage. For Portable Telescopes-12VDC card !, Valves, Robotics, Precision Drives, X-Y Tables, Focusers, Gratings. One jumper wire must be soldered in for Bi- Directional. drive. Layout, Schematics and tips included. On-Board Potentiometer Adjusts Motor Current from zero -1.5A Unused
ALSO INCLUDED: TIMING-BELT & PULLEY Kit 5 teeth/cm Belts: 85, 110, 112, 210 Pulleys: 25, 28, 28, 52, 52, 56, 72, 78 Included.
MOTOR-DRIVER COMBINATION WITH BELTS & PULLEYS $79
em@mediacity.com
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