Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia
I take it the O-Ring = some sort of slip/friction drive ?
a Direct Drive outrunner brushless is bound to destroy the spinning magnets on the first impact otherwise _________________ Great minds discuss ideas. Average minds discuss events. Small minds discuss people
Wed Nov 15, 2006 10:27 pm
dyrodium Experienced Roboteer
Joined: 24 Aug 2004
Posts: 6476
Location: Sydney
Nope, not direct drive. Would risk that! The O ring is the belt, between the two small metal pulleys. ATM the only hurdle is attaching one of them securly to the brushless shaft, as they lack any setscrews or similar. I might end up ordering something from somewhere. _________________ ( •_•)
Hmm the problem though is there's no area outside the pulley... unless you mean I could do it into the pulley surface itself... hmm... Kewl! _________________ ( •_•)
Through the middle of the pully will work if it doesn't have a boss. Just make sure the grub screw is flush with the serface so it doesn't wear the belt/o-ring _________________ https://www.halfdonethings.com/
Thu Nov 16, 2006 3:04 pm
dyrodium Experienced Roboteer
Joined: 24 Aug 2004
Posts: 6476
Location: Sydney
Well, that didnt work. The pulley got deformed and I dont have a tap set so was trying to use screws!
I decided to reuse the old frame, seeing as it's a lot of hard work already done. I've replaced the crappy thin bar with a thick steel bar, which is longer and heavier, and hits harder! Good thing about this design is I can easily change the ground clearance. Seen here, it's under 1mm hehe.
Piccies so far:
And how the electronics will fit in (not yet in there)
... yes, its a huge brushless esc lol. _________________ ( •_•)
Beetle's have been put on hold till after robowars, however afterwards i've got plans to make a full professional one seeing as welch and nick will finaly have time to do theirs!
Just a question mainly directed at nick regarding timing belts, what width would you say is advisable? I'm thinking 10mm is slightly over kill... 5mm?
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