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i used this website to calculate the weight of the the Armour for my 4wd that got 8mm steel round the sides but i had to use 3mm on the base and aluminium for the top plate to keep it in weight, and i just weighed the wheels motors etc and its about 12kg without the wepons
http://www.matweb.com/tools/weightcalculator.aspx
it was drill powered not speed 900
Size of wheels? 100mm?
120mm diameter with bicycle tread
I'd be amazed if normal drills would handle that. Ours destroy themselves with smaller wheels and lower voltage...
Very fast machine then.
Unless you got a strange set Speed 900 replica's. What size of axle did they have?
Sorry, my fault! The replica speed 900 bot runs 120mm wheels on a 12mm axle. The drill bot would use 75mm robo challenge wheels
I ment, what axle does the replica 900 have. There are 3 major types.
5mm, fast runners, ment for applications as battery-leafblowers and such.
6mm, speed 900 size.
6.35 - 1/4 Ment for car applications.
5mm output shaft. These are the replicas from ebay
Fast runners then. 12K rpm @12V
@22.2V those want to run 22.2K rpm. With a gearratio of 7.5-1 the theoretical topspeed should be 71km/h, given time.
Unfortunatly, it will be something about 35 km/u, and the motors will run half speed, drawing more amps. Don't close of the vent holes, and maybe adding a small fan to keep the air flowing trough the motors at all times.
These are the ones some others and I are using:
http://www.ebay.co.uk/itm/12-v-ELECTRIC ... 45f7de0c88
I'm just unsure which direction to take?!