Difference between revisions of "WhimWiki A Wheelchair That Makes Sense:Current events"

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Building a wheelchair with off-the-shelf parts is exciting and challenging. Our biggest obstacle is connecting the wheel to the motor in a way that it has a braking system. As a non-mechanical person, I don't totally get the hows and whys of it, but I do get the part about how bicycle wheels don't drive backwards. So, our engineers are working on how to solve this problem as cheaply and easily as possible.
 
Building a wheelchair with off-the-shelf parts is exciting and challenging. Our biggest obstacle is connecting the wheel to the motor in a way that it has a braking system. As a non-mechanical person, I don't totally get the hows and whys of it, but I do get the part about how bicycle wheels don't drive backwards. So, our engineers are working on how to solve this problem as cheaply and easily as possible.
  
We did consider hub motors. You can see all kinds of these advertised on YouTube... motors that you pop onto a manual wheelchair and off you go. Oh, boy, do I have problems with these. Gut instinct mostly, but some specifics I can name are: low speed, cost, instability... We wavered back and forth for several meetings, but finally decided not to go that route.
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We did consider hub motors. You can see all kinds of these advertised on YouTube... motors that you pop onto a manual wheelchair and off you go. Oh, boy, do I have problems with these. Gut instinct mostly, but some specifics I can name are: low speed, cost, sturdiness concerns, brake questions, low torgue for getting over bumps... We wavered back and forth for several meetings, but finally decided not to go that route.
  
 
Back to the drawing board:  
 
Back to the drawing board:  

Revision as of 22:43, 2 February 2014

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