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Thread: High torque / Low speed recommendations for the following idea ?

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Old 05-13-2011, 01:52 AM   #1
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Join Date: May 2011
Location: Uk
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Default High torque / Low speed recommendations for the following idea ?

This is bit off - topic but I thought Id come here and try an way to see if any one can help with an idea I have to try to give myself some mobility by using my e-walker with a motor.

Which you can read more about this here below ( if you like )
http://endless-sphere.com/forums/vie...hp?f=7&t=18558

I want to be able to use this motor for rougher terrain, inclines or just for whenever i need it but also with freewheel , so that I can use manually ( freewheel ) or with the assist.

My question is whether there are any controllers currently being used by folk here that would allow me to achieve these slow mobility speeds ( 1- 4 mph ) with a drill motor ( i.e. 18 / 24 v dewalt ) and gear ratio 1: 80 - or at least no bigger than 88 tooth sprocket ( unless i change my wheels )

The Specs for my kneewalker are as follows.

( 7.5 / 8 " wheel diameter , 29lbs knee walker and about 175 or 80 lbs of raw flesh i.e. me, )

Ideally Id rather have controller i did not have to programme unless it was unavoidable or cheap ( not over grand like some )

Someone on a robot forum suggested a analog controller such as this http://www.robotshop.com/analog-motor-controllers.html would be the best way to go , but im not really that well versed on electronics so have no idea how difficult something like this would be for a virtual beginner .

Any way if any has any ideas or suggestions id be grateful to hear them.


thanks for reading.
melon
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