26-01-2007 14:34

tbmantia

Re: pic: 1584, lifter 4

How is that being geared down (or is it)? It looks to me you are using the smaller CIM motors.

26-01-2007 15:21

Travis Covington

Re: pic: 1584, lifter 4

Looks like a banebots planetary is in there too? Either way, this whole forklift/lifting system looks gorgeous. I am interested in how exactly it works. Any help?

26-01-2007 15:42

pirates

Re: pic: 1584, lifter 4

They are indeed geared down with the banebots planetaries. in addition there is a sprocket and chain drive reduction and the diameter of the drum which houses the cable acts as another form of gearing it down.

I also started a thread in the robot showcase.

26-01-2007 17:04

sonofdad123

Re: pic: 1584, lifter 4

are you sure that the whole mechanism will be able to lift 120 pounds? just curious if you've tested it on a person or something yet...

26-01-2007 17:46

pirates

Re: pic: 1584, lifter 4

not at all sure, but we sure hope!

26-01-2007 22:19

pirates

Re: pic: 1584, lifter 4

we tested it with a 120lb team member standing on the forks and it lifted him like it was its job! oh wait, it is it's job!!!!!!

26-01-2007 22:59

Lil' Lavery

Re: pic: 1584, lifter 4

Keep in mind you really need to lift about 150 lbs+weight of your forklift.
120(robot)+13(battery)+15(bumpers)=148 lb.s

26-01-2007 23:01

pirates

Re: pic: 1584, lifter 4

actually when we designed it we were aiming for 150lbs, most of the parts where there is lots of stress are rated for about 300lbs, so we just had to make sure the lift was physically strong enough but after the tests we did i dont see any problems so far.

26-01-2007 23:11

DanDon

Re: pic: 1584, lifter 4

Is there any sag towards the outer edge of the lift?

26-01-2007 23:14

pirates

Re: pic: 1584, lifter 4

nope, stiff as a board as far as I can tell, if so nothing major. It lifts 18in, we wanted to make sure to leave some room for wheels maybe hanging down depending on how we build the platform as well as if there were any sag.

27-01-2007 13:13

JamesBrown

Re: pic: 1584, lifter 4

Is there any back drive when power is killed?

27-01-2007 13:21

half geek

Re: pic: 1584, lifter 4

It looks like they have a ratchet attached to the drum.

27-01-2007 20:54

JamesBrown

Re: pic: 1584, lifter 4

Yep, looks like your right