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From seeing some of the fight videos I think the reason you were never pushing with Conker is you didn't have any wedges and the others were always getting under you, Satanix included. You could've had all the power in the world but as they were lifting your wheels off the ground it was to no effect.
That to, but even if it was a straight shoving match I reckon Satanix would have won cos I always had the back 2 wheels on the ground when he was pushing me and yet back I went (with half the grip and torque available I know but still, poor conker)
Alu seems the best bet with live axles as I am using such a small gear (the 12 tooth). 2 Half's, bolted in each corner and then bolted to the base sheet with 4 more. Hopefully tough and rugged. I think KIS will play a large part in the design!
Thanks for the input :) To the Mac!
It doesn't matter what motors you use, if you have a good wheel base, grip and are able to get under the other robot you will push it, also try to aim for 4wd everytime if space allows it, with 2wd the grip is always changing because the robot rocks on the centre point
Silly question to go on the end but does anyone know the RPM/V of a speed 900?
The box says nominal 12V, but range from 6-40V. And the speed is given as 6500 rpm.
Does this mean 6500 rpm at 12V? There website is useless and stupidly I threw out the boxes thinking I would not need them again.... grrrr
If I go with what I know then on a 6 cell lipo, 22.2V, then its...
(6500/12)*22.2=12025 rpm
Am I right?
Edit: Conker does/did have 4 wheels but cos Satanix got under it was only the back 2 on the ground
To back Kenny up, I believe Cobalt uses 550 size motors on Banebots gearboxes. Only difference between them and the gimsons is the Ali gearbox housing. Cobalt also only had 2 for drive.
Just goes to show how important good weight distribution, 4wd and a ground riding wedge is.
your calcs are right
i find this handy when working things out and cadding for graupner motors
http://homepage.ntlworld.com/edward.mat ... aupner.htm
If you go up a wedge it doesn't matter if you've still got two wheels on the ground as you've got nothing to push against- unless there's something stopping the robot from riding up on the wedge the best you can expect to do is drive back off the wedge if you've got any traction left.
We had four standards drills and I felt our machine had superior drive to many. Our design meant that we could drive off wedges, and (it was rare) but when we did get underneath we had plenty of power for pushing.
I'd agree with the notion that power isn't everything. Then again, I completely agree, Satanix's drive is immense! Certainly not a bad thing to aim for.