Accuracy in Rapid Prototyping Systems

From: MR ALBIN A HASTBACKA (KHVD07A@prodigy.com)
Date: Wed May 01 1996 - 00:40:55 EEST


-- [ From: Al Hastbacka * EMC.Ver #2.10P ] --

In an attempt to quantify the accuracy that is required for an
futuristic rapid prototyping system, I have polled several
different users from several application areas and have found the
following:

Name Application Accuracy
of Tool Pattern

User A Plastic Injection Molding Tools +/- 0.0007 to 0.0024
User B Sand Casting +/-
0.003
User C Castings +/-
0.005
User D Master Patterns +/-
0.001

It would appear from the above that an overall accuracy specification
of +/- 0.001 would meet essentially all of the requirements stated in
the survey.

I would like to know if the results listed above are in agreement with
what you believe an advanced rapid prototyping system should meet.

Regards,
Al Hastbacka



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