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HomeAircraftHelicopterAerial Photography and Video › o-ring servo drive?
02-07-2006 03:01 AM  12 years agoPost 1
DANNO

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St. Petersburg, Florida

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ive seen some home made mounts use an oring belt drive for pan/tilt. can anyone tell me where orings and oring pulleys can be found?
thanks
Dan

www.skypiximaging.com

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02-07-2006 03:46 AM  12 years agoPost 2
CKY

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Sunshine Coast, BC, Canada

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I make the pullies out of plastic, wood, or a lamination. O-rings can be found in any hardware, automotive supply store.

Servo pulley is a turned down LARGE Du-bro control arm. Just chuck it up in a drill press and turn it to desired diameter and file the o-ring groove in it.

Simple,
Chris

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02-07-2006 02:11 PM  12 years agoPost 3
AeroPicsNH

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Amherst, NH

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I have found a little trick that I still can't quite believe works so well.

For O-ring drive belts..just get a ring bigger than the one that fits around your two pulleys, cut it to the exact length you need, and put a bit of CA and glue the two ends back together.

It holds really well. Much better than I would have predicted.

Pete

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02-07-2006 02:32 PM  12 years agoPost 4
DANNO

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St. Petersburg, Florida

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cool thanks guys

www.skypiximaging.com

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02-07-2006 02:37 PM  12 years agoPost 5
z11355

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New England

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might also want to try sdp-si.com or servocity or some of the
robot/battlebot online stores.

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02-07-2006 02:47 PM  12 years agoPost 6
TCGliderguy

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Albuquerque, New Mexico

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You can get O-rings.... and most everything else in the civlized world at McMaster-Carr. They are a huge industrial hardware outfit.... and have things like G-10 epoxy board, HDPE plastics, etc...... and cut them to user friendly sizes.

Go to http://www.mcmaster.com and they have a great search engine on their website....

-Taylor

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02-07-2006 02:48 PM  12 years agoPost 7
DANNO

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St. Petersburg, Florida

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i have come across a few "robot/battle bot" sites....great stuff...i never knew people were so into these things....

www.skypiximaging.com

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02-07-2006 05:36 PM  12 years agoPost 8
peaks view

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City, State

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..

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02-07-2006 05:41 PM  12 years agoPost 9
ESWLFSE

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Liberty Hill, TX

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sdp-si has it all. I like the O-ring idea because it serves as a built-in over travel and slipper clutch in case of binding or whatever.

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02-07-2006 05:48 PM  12 years agoPost 10
peaks view

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02-07-2006 06:54 PM  12 years agoPost 11
ESWLFSE

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Liberty Hill, TX

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The stuff is hard to find on the site and there are tons of options for pulley diameter, belt size, etc. Just order all their free catalogs.

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02-07-2006 07:12 PM  12 years agoPost 12
MPA

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Australia

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From here
http://runryder.com/t209559p1/

Incline the drive pulley axis (servo) at an angle so that the belts are just touching at the cross over point, not gripping each other at all when turned.
Cross over belt drive increases the wrap around the both pulleys.

rvv.com.au

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02-07-2006 08:24 PM  12 years agoPost 13
peaks view

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02-07-2006 11:46 PM  12 years agoPost 14
MPA

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Australia

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Matt

Got that pulley down the hardware.

Bathroom cabinet rollers,
knock the guts out of it, put a split wire gromment in the middle and a bolt through to secure it to the hub.

Thats a servocity aluminum hub.
Threaded in the centre to accept a bolt, the set/grub screw is used to lock the centre bolt when the centre bolt is done up enough to grip.

Hasnt thrown the belt yet.
But, for simplictity I am considering dumping the hub and making pulleys now I have a mill drill and lathe here, but make them with longer sides on the pulley.

Cheers

rvv.com.au

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02-08-2006 12:04 AM  12 years agoPost 15
DANNO

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St. Petersburg, Florida

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wow mpa you really mcguivered that!

www.skypiximaging.com

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02-08-2006 05:52 PM  12 years agoPost 16
the19hole

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Lexington, KY

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Hey Danno, these guys have it all!

https://sdp-si.com/eStore/

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