Bosch 750s

[JamesDavies]

We have 2 12V SLAs 22ah (just like the ones in battleaxe I noticed this weekend).

[mightymouse]

James,

I am currently fitting a pair of F30-400 motors from robotmarketplace at $109 apiece, supposedly double the power of the Bosch's at 2hp - 1500watts.
Should be running at Maidstone with them so wait till then and I will know whether they are a good investment.

The pair cost me just over £200 with delivery and £16 import duty.

Trev

[maddox10]

Strange, the F30-400 is priced @ $239 .
The E30-400 is priced @ $109.
Peak HP =2.1= 1565W. Torque is comparable with the 750.

Advantages, smaller and lighter than the Bosch 750, easier available and cheaper.

Disadvantage, runs about twice as fast. So any gain in weight and size will be eaten with the gearing.

[JamesDavies]

Thanks Trevor! Been looking at robot marketplace... Found some cracking 32 hp motors (which would require a mortgage). What motors were you previously using?

[mightymouse]

James

CIM motors - more discontinued than the bosch's

Motors are E30-400, my mistake

Trev

[JamesDavies]

I have a feeling the old ones are the same ones that are in Leveller at the moment...

New ones look good- hope they work well!

[blazerbotics]

Your batteries wont be helping, they will only be able to supply 80amps, I run them in UFO and they just cant supply the current needed. I would suggest upgrading batteries before the motors, if you upgrade your motors you will still have the same problem.

[JamesDavies]

Really? I see... What batteries would you suggest instead?

[terry]

Nicad and nimh are rarely used now, unless bought cheap from someone else, a123 are hard to get at the moment , maybe the only choice is Lipo, they can be inexpensive and you only need a few of them, making them a prefered choice for many roboteers now.
They Will supply serious amps at stall though .

[JamesDavies]

I see- what do you use in Toxic Terry? I'll look into it... Is what sort of amphourage would be reasonable?