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Old 07-20-2007, 09:35 AM   #1
Dave Nowlin
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Any body here made a set of improved roto-chocks?

I am making a set of roto-chocks that are made entirely of aluminum and stainless steel. The clamping action is done by rotating a stainless steel nut on a piece of stainless allthread which is 1/2 inch in diameter. The upper and lower clamps are made of thick wall 2 inch aluminum square tubing that have a 20 degree angle cut at each end. These clamps are then fitted with stainless steel pressure pads which are 2 1/4 inch x 3 1/2 in. The pads are held in place by 3/8 inch stainless steel bolts which serve as axles so the pads can pivot slightly to achieve as much contact as possible. I would post a picture here later this afternoon if I could figure out how.
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Old 07-20-2007, 09:41 AM   #2
Britney 10
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Dave, Check out this link on how to post pictures here on the MOC.

http://www.montanaowners.com/AddingPhoto.html
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Old 07-21-2007, 05:12 AM   #3
Ozz
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Nice craftmanship Dave.
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Old 07-21-2007, 06:17 AM   #4
Snownyet
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Thats nice, be sure to lubricate those threads. Stainless is very prone to thread galling in an application like that were the nuts are moved frequently. It would be awful to have that in place and end up with siezed threads and no way to get it off without cutting the rod.
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Old 07-21-2007, 10:22 AM   #5
nailbender
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Great idea and well constructed. It looks like it will last a long time.
Do you use a ratchet type wrench for adjusting?
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Old 07-21-2007, 01:05 PM   #6
Dave Nowlin
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It's easier to use a ratchet but you don't have to. At first I wasn't going to use pivoting end pieces but decided I could get more pressure on the tire face if they pivoted to get maximum contact. These cost way less than half of what the Roto-Chocks cost and no plastic.
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