Motor for a forklift

[calvin1631]

We are going with a forklift design and with the absence of the minibike motor we are looking for an alternate to raise/lower our forklift. Would using both fp motors create enough torque to lift a 6lb structure plus the 10lb ball at a reasonable speed? Or would the globe motors be a better alternative?

[Jon Jack]

Originally Posted by calvin1631

We are going with a forklift design and with the absence of the minibike motor we are looking for an alternate to raise/lower our forklift. Would using both fp motors create enough torque to lift a 6lb structure plus the 10lb ball at a reasonable speed? Or would the globe motors be a better alternative?

Yes. As long as you use a gear box. We actually just used our 2007 lift to lift the ball and it is driven by just 1 FP motor using an AM Planetary and a 56mm BaneBots Planetary. It was fast, but it was moving at a snails speed either.

[pakratt1991]

we're probably using the a FP also, and for the same idea... probably...

[AndyB]

FP motors with the gearboxes are more powerful than globe motors. so yes, i would advise using FP's.

[EricH]

Originally Posted by Jon Jack

Yes. As long as you use a gear box. We actually just used our 2007 lift to lift the ball and it is driven by just 1 FP motor using an AM Planetary and a 56mm BaneBots Planetary. It was fast, but it was moving at a snails speed either.

Two FPs, stock gearboxes, is a classic BeachBot trick. The 2007 (and 2005, if we hadn't used a PVC arm) robot arm could lift our driver, and he's at least robot weight (I think...)--at least 2007 could before we took off one motor to make ramp weight. Our 2004 robot had 2 FPs on one drum and winched itself up on a bar--that's 120 pounds + battery, all on two FPs through the gearboxes and the frame through screws in the mounts. Two FPs might even be overkill, but you might want that.

[Matt C]

Remember that the van door motor is back in the kit. (I haven't checked to see if it's the same as previous years as far as performance but I would assume it's similar). In 2k1 we used a van door motor tied to a drum. The Van door motor can be direct driven as is because it has a worm gear box built into the casing.

FYI: If you didn't know, 2k1 had similar size/weight balls.

On second thought, it would probably be faster using the FPs, but just throwing more ideas out there.

[Justin M.]

We used the keyang motors last year to work our arm. Those things are super torquey and don't backdrive.

[Drwurm]

Teams 968 and 254 used 2 FPs and a rotating drum last year for their lift bots.