Team Bitza

[PJ-27]

Since we now have a few robots I thought we'd make a new thread for the team and put everything there.

First up some photos!

[PJ-27]

Some help required.

I need to control, via R/C what I believe to be a SPDT/CO switch...

The actual switch has three positions, centre is off left is on on and right is the other. Can someone advise a suitable RC switch to control this please?

Don't want to use servos.
Thanks!

[PJ-27]

Any one?

I think this will do it:
http://www.ebay.co.uk/itm/2-WAY-Radio-C ... 3379e61eb9

[PJ-27]

What MOD gears do people typically use in FWs?

As far as I can tell MOD is simply the distance between teeth on the gear, is that correct?

Also, am I correct in thinking that gearing ratio between 2 gears to be the division of how many teeth each has?

So a 5:1 reduction would be achieved with a 10T pinion and a 50t spur?

[razerdave]

Yep, nailed it in 1.

I use Mod 1 gears in Satanix. Not had them wear out yet.

[PJ-27]

What sort of top speed do people aim for when doing their gearing reductions? About 10mph? Or higher?

[Ellis]

Our machine can do about 10mph and it feels plenty fast for a small arena. A 12v drill setup at 12v does about 7mph. Maybe use that as a guide?

Unless you're confident your drive motors will get you to 10mph quickly it's perhaps best to aim a little lower?

Is this for a new machine or Bitza upgrades?

[PJ-27]

New machine, on paper works out at 3hp in the drive! All made from bits and bobs, just trying to figure out a suitable gear reduction.

[archie2000]

THATS my kind of robot
that's like 20x more powerful than gimsons
i don't beleive it will work but just hope someone is clearing out their cellar and saying,
do i really need this binfull of rare earth magnets.
3hp isn't going to stick to the floor
and guess what.
USLESS POINT OF REFERENCE:
http://shop.mobileweb.ebay.co.uk/search ... Kw=true&cm
d=SREF
nope

[PJ-27]

No magnets, unless we happen to find some, we do have some incredibly wide wheels though!

So what sort of top speed do people aim for? Cobalt seemed a good speed, Satanix perhaps too high, the new Aftershock had good drive, 540 moved like a fly!