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speed controllers

updated sat 25 nov 00

 

Jonathan Kaplan on fri 24 nov 00


Some time ago, Brent had some less then perfect motors on their wheels and
replaced them with thier current ones from another vendor.

We ended up replacing those less than perfect DC motors with the newer
ones. Took the older ones to a motor shop and had them rebuilt, some with
minor work others with a bit more work.

We purchased some DC speed controllers from Graingers, about $100 back then
and used them in combination with the motors to build motorized equipment
around the shop such as buffing machines for seams, motorized banding
wheels, etc etc..

You can also purchase motors, foot pedals, and speed controllers directly
from Brent.
Remember that on DC motors you can vary the voltage and hence change the
RPMs of the motor. Can't do this with AC motors. While there are ways to do
this on AC motors, they really are quite inferior. I have seen some pretty
cheesy rheostats on squirel cage blowers for kiln burners. Not very
adequate. The solution here is to use a manual butterfly valve after the
blower to vary the volume of air and just let the blower run full.

Jonathan

Jonathan Kaplan, president
Ceramic Design Group
PO Box 775112
Steamboat Springs CO 80477
voice and fax 970 879-9139
jonathan@csn,net
http://www.sni.net/ceramicdesigin

Plant Location:
1280 13th Street Unit 13
Steamboat Springs CO 80487
(please use this address for all deliveries via UPS, comman carrier, FEd
Ex, etc.)