Design Dilemma

[Laser]

I have no experience with spinners but that sounds a good ratio.

[Laser]

What voltage will you run the speed 900 at?

[ewan]

I'd say the Electronize will be fine if you're careful not to stall the motor too much. 40A is the /continuous/ current rating and a speed 900 at 12V has a stall current of 54A, obviously more at 14.4 or 18.5V but should still be within the controller's peak ability. And 4:1 is actually rather a high reduction

[Eventorizon]

Its currently 14.4V with my 2 NiHM packs but If i get a LiPol it will be slightly higher than that, the motor is rated up to 24V so I should be ok, fingers crossed, and could I get away with 3:1?

[razerdave]

I believe Drumroll uses a 3:1 ratio on his drum.

[ewan]

3:1 should be fine. I'd recommend a 18.5V Li-Po
Also remembered what the first CAD reminded me of, an American machine called Manta:

[jonny]

the electronixe will probably be fine, if it blows just replace it with a battleswitch and 100 amp solid relay. i run 2 speed 900s of one of them

[teamshock]

If I were you I would run the speed 900 at around 24v and use either a 4:1 or 3:1 ratio on the disc and either use the solid state or Automotive relays (70A ones work well).

[Eventorizon]

How do you go about boosting the power up from 18V to 24V. I know its somem kind of transformer (A couple of my flat mates had to get a mains Cree LED running of 2 AA batteries )

[MikeNCR]

How do you go about boosting the power up from 18V to 24V. I know its somem kind of transformer (A couple of my flat mates had to get a mains Cree LED running of 2 AA batteries )

Generally, that would just be buying a 6-7 cell pack instead of a 5 cell pack depending on the exact voltage you wanted.