fighting robot

**1970DenisT** · 07-21-2011

Originally Posted by elaughlin

That arena is damn impressive.
Is there someone or some business that funds all of this?
And are all the vehicles the same?

Thank you!
We have another business to keep our childhood dreams.

Yes, all vehicles are the same now. This is a third design of hull because we continuously change, improve and strengthen it.

**1970DenisT** · 07-21-2011

Originally Posted by Gertlex

And can we bring ours and fight yours?

What battery is used? Looks like 12 cells in that pic above... 8 hours is crazy battery life, too!.

welcome, we are always glad to see you in our club

We assembling batteries by ourselves.
18 Li-ion notebook batteries with capacites of 2200 or 2400 mAh. We paralleling 6 batteries in one section and then put 3 sections in series connection.
The result voltage is 3.6V * 3 = 10.8V
All 3 sections are placed in shrinkwrap, we also add balancing connector. Total weight of battery is 0.85 kg.

**scowby** · 07-22-2011

I like this project. What about the wheel motors? Problem is finding a good power/weight ratio. It looks like your tanks go fast. What kind of motors are you using?

**1970DenisT** · 07-25-2011

Originally Posted by scowby

I like this project. What about the wheel motors? Problem is finding a good power/weight ratio. It looks like your tanks go fast. What kind of motors are you using?

Planetar gear motors are part of industrial screwdrivers, purchased in China. We use only 1/3 of its capacity. The voltage rate of motors is 36V, we supply only 11.8V.