Motorized rollerskates, how do i calculate which dc motor to use? Some better than others? Answered
I'm going to try and fulfill one of my childhood dreams; making a pair of electrically powered rollerskates.
However i'll need your help if i am to succeed!
I have decent knowledge of soldering and the electronic circuit wont really be a problem - i'll wire everything to an arduino duemilanove
So here's my questions:
1. I'll need a motor, is there a specific motor type that is best suited for the purpose?
max loadage: 80kg
speed range: 0-20km/h (~12mph)
Something like this, but in rollerskate format: http://www.skateelectric.com/index.php?option=com_content&task=view&id=38&Itemid=45
If anyone could point me in the right direction in regards to motor type and motor calculation i'd be really really grateful.
I know that voltage is equal to velocity and amperage is equal to torque - and that torque is used as force to drive the wheels under pressure/friction.
I've done quite a lot of research already, but i always hit a dead end, nothing here on instructables seem to cover the topic regarding dc engines - and no, i'm not insane enough to power a pair of rollerskates with an angle grinder - i want to have fun, not carve up the pavement and break bones (or spontaniously combust)
ps:or this http://www.youtube.com/watch?v=HQzzjBR9Etw
I'll do an instructable on this if i get it working, all i need is help with the motor, i'll do the speed regulating myself and all that jazz.