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

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looking for some of the large white gears on ER1 drive unit pogo 02-13-2006
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Posted by pogo on February 13, 2006, 10:57 pm
Anyone know where I might start looking for some of the large white gears
attached to the drive wheels on the "mini-me" robot shown here ?

http://www.evolution.com/er1/what_pictures_built.masn?pic 

Thanks !
JCD



Posted by John Nagle on February 13, 2006, 11:16 pm
pogo wrote:
> Anyone know where I might start looking for some of the large white gears
> attached to the drive wheels on the "mini-me" robot shown here ?
>
> http://www.evolution.com/er1/what_pictures_built.masn?pic 
>
> Thanks !
> JCD

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

Posted by John Nagle on February 13, 2006, 11:24 pm
On another note, that's not a "gear" at all. It's a sprocket
for a toothed belt.

                John Nagle

John Nagle wrote:
> pogo wrote:
>
>> Anyone know where I might start looking for some of the large white gears
>> attached to the drive wheels on the "mini-me" robot shown here ?
>> http://www.evolution.com/er1/what_pictures_built.masn?pic 
>> Thanks !
>> JCD
>
>
> 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

Posted by howy on February 14, 2006, 2:19 pm
>Anyone know where I might start looking for some of the large white gears
>attached to the drive wheels on the "mini-me" robot shown here ?
>http://www.evolution.com/er1/what_pictures_built.masn?pic 

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


Posted by howy on February 14, 2006, 2:49 pm
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



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