perm filename IVAN.VL[1,VDS] blob sn#268337
filedate 1977-03-02 generic text, type C, neo UTF8
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C00002 00002 \|\\M1BDR30\M2SIGN57\M3NGR25\M4NGR20\F2\CUNIMATION INC.
\F3\C154 EAST DANA STREET
\CMOUNTAIN VIEW, CA. 94041
\F1\CMarch 3, 1977
Professor Ivan Sutherland
Department of Computer Sciences
California Institute of Technology
Dear Professor Sutherland:
Les Earnest has asked me to reply to your letter requesting
information on motors, gearing and encoders, as I am the person who
developed the Stanford manipulators.
Motors: You are interested in pancake type motors. These are made
by Printed Motors, Inc. Glen Cove, N.Y. Enclosed is a general brochure
on them. They make a good quality motor here in the U.S., and they import
a lower cost version from Japan. I used 2 of these in each Stanford Arm.
They have local reps who can give you more literature. Other high quality
motors are made by Magnetic Technology; Canoga Park, Ca. and Inland Motor
Corp; Radford, Va.
Gearing: The high ratio inline gear units are made by USM
corporation of Wakefield, Mass. They are called Harmonic Drives and are
available in several sizes and with different gear ratios. They too have
local reps, and also offer lower cost imported versions.
Encoders: The Stanford arms do not have encoders, but some of my
more recent manipulators do. I currently favor Litton Industries
Encoders; Chatsworth, Ca. Also good are Baldwin, Teledyne-Gurley and
Dynamics Research. They come in different sizes, with varying counts and
different types- incremental, absolute, with and without electronics, and
housed or unhoused.
I hope this information gets you on your way. I have also taken
this opportunity to enclose some of my company sales literature.\.