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View Full Version : pic: 1584, lifter 4

pirates
26-01-2007, 14:33
[cdm-description=photo]26432[/cdm-description]
tbmantia
26-01-2007, 14:34
How is that being geared down (or is it)? It looks to me you are using the smaller CIM motors.
Travis Covington
26-01-2007, 15:21
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?
pirates
26-01-2007, 15:42
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.
sonofdad123
26-01-2007, 17:04
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...
pirates
26-01-2007, 17:46
not at all sure, but we sure hope!
pirates
26-01-2007, 22:19
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!!!!!!
Lil' Lavery
26-01-2007, 22:59
Keep in mind you really need to lift about 150 lbs+weight of your forklift.
120(robot)+13(battery)+15(bumpers)=148 lb.s
pirates
26-01-2007, 23:01
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.
DanDon
26-01-2007, 23:11
Is there any sag towards the outer edge of the lift?
pirates
26-01-2007, 23:14
Is there any sag towards the outer edge of the lift?

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.
JamesBrown
27-01-2007, 13:13
Is there any back drive when power is killed?
half geek
27-01-2007, 13:21
Is there any back drive when power is killed?

It looks like they have a ratchet attached to the drum.
JamesBrown
27-01-2007, 20:54
It looks like they have a ratchet attached to the drum.

Yep, looks like your right