looking for some of the large white gears on ER1 drive unit

    First, please read this document on how to measure and specify gears:

    http://bostongear.com/pdf/gear_theory.pdf

    Then measure the gear you need to replace, and count the teeth,

    Then start looking for the correct part.  Try Berg, Stock Drive Products,
and Small Parts, Inc.  Look under moulded Delrin or nylon spur gears.

                    John Nagle

On another note, that's not a "gear" at all.  It's a sprocket
for a toothed belt.

                John Nagle

John Nagle wrote:

That looks like a timing belt pully that I got from Stock Drive
Products.
-howy

I just noticed it looks like Evolution is selling the ER1 robot again,
but now it costs $7,500.00 instead of $300.  I would love to know how
many of these they are selling per year.

-howy

Yeah - they are *really* selling the software with the 'bot almost as a
"freebie".
JCD