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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\CSeptember 28, 1974



Professor John Luh
c/o Purchasing Department
Department of Electrical Engineering
Purdue University
West Lafayette, Ind. 47907



Dear Professor Luh:

\J
	Enclosed  is a  set  of  drawings  covering those  parts  not
included  in  the   original  set  plus  those  drawings  which  list
modifications to the drawings already supplied.  

	By now you probably have figured out how to assemble the main
column assembly.   If not, the  hole added to the  main column should
enable you to get at the inside screws. 

	I still  owe you some parts.  These include the potentiometer
elements for  the outer  joints, the  encoder  for joint  #3 and  the
wiring  and connector  components.   I expect  to ship  most  of this
within the  next week.   At  the present  time, I  am waiting  for  a
replacement for the #3 encoder.  The original ones I ordered were not
satisfactory,  so  I  am  attempting  to  get  them replaced  with  a
different model. 

	Included with this package of literature is some of  the data
you will need for wiring up  the arm and designing your servo system.
The servo  and interface drawings are by Tom Gafford who is designing
the Stanford Arm interface to the PDP-11/45.   Unfortunately he still
nas not completed his system,  so I can not tell you whether it works
or not.\. 

	
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Yours sincerely,



Victor Scheinman
    President

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VDS:pdp10