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\\M1BDR25;\M2SIGN57;\M3NGR25;\M4NGR20;\F2\CVICARM
\F3\C154 EAST DANA STREET
\CMOUNTAIN VIEW, CA. 94041
\F4\←L\-R\/'7;\+R\→.\→S   Telephone:
\←S\→.415-965-0557
\F1\CMarch 12,1975



Professor George N. Saridis
School of Electrical Engineering
Purdue University
Lafayette, Indiana 47907  


Dear Professor Saridis:

\J
	Enclosed is some preliminary information  on the Model M.I.T.
manipulator you  have on order.  The layout  drawings are to scale so
you can  get  some rough  dimensions  from  them.   The  installation
instructions  cover a  suggested control  scheme.   I should  add that
while  some laboratories  like M.I.T. have  a computer  based servo system,
there  are several  groups  who  are building  hardware  based  servo
systems.   The hardware systems seem  easier to implement  but in the
long run,  at least  some  software servo  routine is  necessary  for
optimum performance.  

	Also included is a wire list  for your interface connections.
The  cable between the  arm and computer  interface is  a standard 50
conductor 3-M ribbon cable with the pin assignments as listed.  

	We are  currently wiring up  your arm  and if  all goes  well
should have it ready very early in April.  In the meantime I hope the
enclosed information is satisfactory. \.

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Yours sincerely,



Victor Scheinman
    President

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VDS:pdp10