O-ring drive belt

[Brian Rupnow]

This is the a video of the reduction pulley and an o-ring drive belt added to my latest steam engine.

 

[Philjoe5]

Brian,
Cool video. What is the relationship between the thickness of the O ring and the groove width and depth in the pulleys?

BTW if the huge gear next to your engine is your next project, I can't wait ;D

Cheers,
Phil

 

[Brian Rupnow]

I made the grooves in the pulleys 0.020" deep x 0.100 wide. The o-ring is .093" diameter. This is all guess work at present, but ya can't argue with success. Its not like a v-belt that fits into a v shaped groove to transmit more torque without slipping. These little engines couldn't really cope with the power loss that is inherent in a v-pulley system. The big gear, and the casting beside it are---believe it or not---parts of the drive for a cookie dough machine I am designing. My customer, owner of a commercial bakery, reclaimed the drives, castings, and extruder rolls from a strip dough processor out of California, and I am using them as the basis for a machine that makes literally millions of frozen cookies for distribution in the major grocery stores.

 

[Powder keg]

Great job there Brian!!! Nice Video to

I can't wait to see your Bubble machine.

Wes

 

[Brass_Machine]

I see someone found Rick's smilies

Can't wait to see the bubble machine!

Eric