TagBot - first computer control test

Stage 2 of the TagBot project: A manual test drive, controlled by a computer.

Category:

Autos & Vehicles

Tags:

• tagbot
• robot
• drive
• by
• wire

[valiza123]

is that 600hz pwm?.

[hexarith]

@valiza123 in that video, yes. At that moment I was still strugling with the gate drivers and 600Hz was the highest I could go without dissipating to much heat in the MOSFETs. After I changed the transistors in the driver stage with HF amplifier types and replaced the gate protection zener diode with a SMD one, soldered directly between the MOSFET pins and better snubbers on the motor side I could yank up the switching frequency way up.

[hierola]

can you tell me where you bought the drive chain for the tank? thx.

[hexarith]

@hierola They are DIY, made from rubber-type transmission gear belts (there are also belts made from Polyurethane, which don't work for that method) and old mountainbike tyres, which where cut in slices and glued to the transmission belts using vulcanizing rubber glue.

[LackCrackGetWhack]

lol i think this is just a tank remote control toy u took apart

[hexarith]

Actually we started of a toy RC tank. But the chassis turned out to be insufficient for our needs. The motors (2x 120W) easily ripped the thing apart. So we built our own chassis.

However the thing is not controlled with a ordinary RC. It's controlled by a computer, and programms running on that, which can access a large assortment of sensors.

Yes, we can and do of course RC the thing if we want, like in the video.

[vicnexxprod]

eso no caminaria ni en el pasto

[crack1110]

then there's always to look on the street and search for money lol :P

[autonomous2010]

I mean legally. lol

[crack1110]

there is always a bank and a robber :P

[autonomous2010]

Yeah but making the whole thing would be costy. xD

[crack1110]

they exist , you can also use an wireless headset lol