New robot with chain drive

[Laser]

Re: New robot with chain drive

Hey clive what is the ratio in 44 toon and how many teeth do your sprockets have?

[geoff]

Re: New robot with chain drive

Team Torque have done a bit of R&D for a drive system based on Speed 900 motors for the new Pillow Torque. We have finally setteled on 2 stage 0.8mod (HD) spur gear set-up with an overall reduction ratio of 20:1

The Speed 900 has a KV of 680 rpm/v
So at 24v no load motor speed is +/- 16,000 rpm
20:1 ratio gives a wheel speed of +/- 800 rpm
Using a 4 wheel gives a ground speed of around 9mph (allowing for transmission losses) with exellent control and plenty of torque.

I have driven a machine with Speed 900's @ 19.2v with a ratio of 6:1 0n a 5 wheel and it was truly scary undertaking (WAY too twitchy for me!)

[Laser]

Re: New robot with chain drive

Geoff, how many teeth did the gear on the wheel have?
And did you get the gears from Technobots?

[rob]

Re: New robot with chain drive

Geoff, how many teeth did the gear on the wheel have?
And did you get the gears from Technobots?

Check out these wheels and gears, Pm him or email if you want them
viewtopic.php?f=166&t=3461

[Laser]

Re: New robot with chain drive

Thanks Rob, but i'm going to make my own gearboxes

[razerdave]

Re: New robot with chain drive

I have driven a machine with Speed 900's @ 19.2v with a ratio of 6:1 0n a 5 wheel and it was truly scary undertaking (WAY too twitchy for me!)

That wasn't Satanix by any chance was it ?

I prefer gear drive to chain drive, simpler IMHO.

[cliveb]

Re: New robot with chain drive

Hi Ben
sorry for the late reply but I have only just seen your question.I will be back in my garage on monday so if you still want details on the drive train in 44 Toon pm me a list of questions and I will get you all of the details you want.

Clive

[Laser]

Re: New robot with chain drive

What is the best ESC to run 4 Speed 900 on 30v for under £200?

[razerdave]

Re: New robot with chain drive

I would say Sidewinder or Victors.