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Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Sat 03 November 2012, 15:31

Replies: 449

Reduction Drive by belt - a collection of various designs and how to build your own.

Views: 478,943

Posted By smreish

Ideal resolution for a MM is anywhere between 3:1...

Ideal resolution for a MM is anywhere between 3:1 to 4:1 for a good compromise between speed, resolution and backlash if you go with Belt Drive transmission.

Gearbox I have found 7.2:1 is perfect...

Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Wed 15 September 2010, 04:21

Replies: 449

Reduction Drive by belt - a collection of various designs and how to build your own.

Views: 478,943

Posted By smreish

Chopper, Good note on the "cornering" speed. ...

Chopper,
Good note on the "cornering" speed. Noted well in the gecko design criteria for those really interested.
Good luck.
Sean

Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Mon 13 September 2010, 12:52

Replies: 449

Reduction Drive by belt - a collection of various designs and how to build your own.

Views: 478,943

Posted By smreish

Noted and reasonable.

Noted and reasonable.

Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Sun 12 September 2010, 18:37

Replies: 449

Reduction Drive by belt - a collection of various designs and how to build your own.

Views: 478,943

Posted By smreish

These are NEMA 34 gearboxes.....for the right...

These are NEMA 34 gearboxes.....for the right price just in case people are looking.
About the same cost after you consider all those pulleys and bearings.
...

Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Sun 22 August 2010, 14:19

Replies: 449

Reduction Drive by belt - a collection of various designs and how to build your own.

Views: 478,943

Posted By smreish

Hennie, I wish they had real go-carts. They...

Hennie,
I wish they had real go-carts. They were playing races with their little matchbox cars - dozen's of them all around the couch!

Vroom....vroom.

:D

Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Sat 21 August 2010, 14:04

Replies: 449

Reduction Drive by belt - a collection of various designs and how to build your own.

Views: 478,943

Posted By smreish

The only thing I have to add is everyone has an...

The only thing I have to add is everyone has an opinion.

I am happy that chopper's solutions works well for him.
But, if I look at my machinist handbook and such from engineering school, I find...

Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Thu 17 September 2009, 18:31

Replies: 449

Reduction Drive by belt - a collection of various designs and how to build your own.

Views: 478,943

Posted By smreish

...or you could weld the small pinion to the...

...or you could weld the small pinion to the larger and just use the smaller diameter shaft.
That would make all your parts off the shelf and a simple "bolt" on like shaft for the assembly.

Just...

Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Mon 20 July 2009, 18:16

Replies: 449

Reduction Drive by belt - a collection of various designs and how to build your own.

Views: 478,943

Posted By smreish

Chop, Thanks for the shout-out! :D Ah, just...

Chop,
Thanks for the shout-out! :D
Ah, just post a pic or two, that's what keeps us all in this together...pictures.

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