Designs? Compact Winch using M-Motor

[andythenorth]

Anyone got a clever design for a compact winch, using PF M-Motor?

Wish-list features:

- free-spooling option (for fast unreeling of winch line), probably via driving ring

- worm drive

- clutch gear before worm

- self-contained module on 5x11 open frame http://www.bricklink.com/catalogItem.asp?P=64178

I can come up with something but it might not be the most efficient design

[EyesOnly]

Well you could look at pictures from the new Boss crawler. Not sure which tread they are in but i do remember seeing pictures of it. It's not on a frame but it is compact.

Edit

Found it. It was in Egors own review. The text is in russian but scroll down for pictures of the winch.

http://brickgarage.b...x4-crawler.html

http://brickgarage.b...9398-41999.html

Another edit

https://picasaweb.google.com/ekarshiev/41999Review_markedI?authkey=Gv1sRgCOGAy-7kt5HeFw

Edited July 27, 2013 by EyesOnly

[rm8]

Yes, wait till 1 august and you can see winch at BOSS crawler/41999 which is compact and powerful

[andythenorth]

Nice tip thanks.

I wouldn't have considered mounting the winch drum vertically, neat idea.

Doesn't have free-spool (far as I can tell), but ticks all the other boxes.

Wonder how much line-pull torque the clutch gear can handle? My goal is about 1kg of truck on a 45' slope. Might need to move the clutch gear to before the worm?

Edited July 27, 2013 by andythenorth

[EyesOnly]

If i'm not mistaken then the string used in the boss is the same as in the new crane. Look at this review thread about the crane to see what i mean.

Wonder how much line-pull torque the clutch gear can handle? My goal is about 1kg of truck on a 45' slope. Might need to move the clutch gear to before the worm?

I don't know how much torque it handles but i've heard about people using double clutch gears to allow for more torque. I have no idea where i read that. I think that you will be fine with one if you use it as you drive and not just use the winch alone, but i'll let people with experience answer that.

[efferman]

maybe this is a solution for you

freepull function at 25 seconds

[EyesOnly]

Ok maybe i'm wrong about the string. According to bricklink the new crane uses the same string as 8421, part x77cc250 Black String, Cord Medium Thickness 250cm.

Nice tow truck efferman. I like the free-wheeling function.