Quote:
Originally Posted by pfreivald
Any thoughts on gear ratios? We're looking at using a CIM with a planetary gearbox from Banebots and a spool winch, but the only ones we've ever used are 12:1 reduction -- probably inadequate for the job...
64:1? 128:1?
Advice would be appreciated.
Patrick
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Patrick,
There are many things to consider when selecting your gear ratio.
Specifically, what method are you going to use to lift yourself? I presume a spool and cable system of some sort. So you need to consider the radius of that spool. Changing the radius of the spool will affect the linear speed of your cable system, as well as the required input torque to lift the robot.
If you were to share a bit more information and specs on your proposed system, I am sure someone could give you more clear advice on what gear ratios to run.
Also consider how the mechanism will back drive after power has been cut off.
That aside, something I have not heard much about yet, is if anyone plans for their lifting mechanism to be able to work with multiple robots hanging off their bot.
Rob