Help with gear ratios

[daveimi]

"High speed costs!!! If you want a robot to be cheap and fun keep the speed down, the quality high, and the concept clever"

This is exactly where I'm coming from. I think I'm going to stick with the wheel chair motors as I know I can get replacements for £20. I know they aren't a daft wattage (about 250W), but as you say "real world" torque was incredible. I could sit in the wheel chair (12stone) with my cage fighting brother in my lap (16stone) and the torque of both motors happily pushed us up the drive at full chat and up the kerb etc. The other thing was get some mags, get gearboxes built, but then trying to source replacements is my big worry. I know home built gearboxes will be much higher quality that the wheel chair items but I live a few doors down from a mobility shop so it's been incredibly easy to get hold of everything. Don't know what to do! And they fit nicely into my body shell.

[adz600]

Just fit 4 off them a wotty or roboteq will run twin wheelchair motors with ease also would look good and should have lots of grip,still loads of space in the shell for a linear drive motor and a lifter could be cool

[daveimi]

Yeah been thinking it needs a weapon rather than be just an invert-able wedge.

[Max]

Yeah been thinking it needs a weapon rather than be just an invert-able wedge.

I'd take it one step at a time, start with just an invertible wedge but leave space to add a weapon at a later stage after you've taken it to an event or two.

[terry]

Lol @ Craig ... Tin snail flippers !

[adz600]

good list 3 attempts with ceros and have not got passed no3 three yet, one blown roboteq, one blown mega wotty, then a mega wotty on fire god love lipo and perm motor combination, but thinking of trying again with nicads to limit the current pull.

all in all three fights and around 2 minutes run time total and one fire

[mattsdragons]

At least it keeps the pneumatic system from freezing up

[daveimi]

Lol Craig that made me laugh.