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ronh72c10
08-09-2011, 04:38 PM
Since it looks like the original thread I posted got lost in the DB crash from a while ago I figured I'd reupload the plans.

Here's a GIF of the plans for the shrinker stretcher stand, You'll have to print it out since the detail won't show in Internet Explorer.

Inorder to better show the detail I omitted the other side since it's an exact duplicate.

Tubing thickness isn't that critical, this is just what I had in the scrap pile. If I was going to change one thing it would be to make item 6 a 2"x1" tube instead of the 1"x1" tube.

Parts List:

Item 1 - consists of 2 pieces of 2"x2"x24" square tube, 0.100" wall
Item 2 - consists of 1 piece of 2"x2"x20" square tube, 0.100" wall
Item 3 - consists of 2 pieces of 3"x1"x9" rectangular tube, 0.100" wall
Item 4 - consists of 1 piece of 2"x2"x37" square tube, 0.100" wall
Item 5 - consists of 2 pieces of 3"x1"x5" rectangular tube, 0.100" wall
Item 6 - consists of 2 pieces of 1"x1"x24" square tube, 16 gauge
Item 7 - consists of 2 pieces of 1.5"x1.5"x2" angle iron, thickness really unimportant
Item 8 - consists of 4 pieces of 3/8" turnbuckle, (cut from two complete turnbuckles), with the threaded end drilled out and tapped for 7/16"
Item 9 - consists of 2 pieces of 7/16"x32.5" threaded rod, check your length before cutting!
Item 10 - consists of 2 pieces of 5/8"x4" drill rod, grind the drilled end for clearance with Item 8, aprox 1.5"
Item 11 - consists of 2 pieces of 8" springs, (note at rest they are being stretched to 10")

All mounting bolts for the shrinker/stretcher units are 3/8" as are the pivots for the foot pedal.

The linkage was drilled for 5/16" bolts.

The stand height tube was an arbitrary 37", it was the longest piece of scrap I had. :)

Ron

ronh72c10
08-09-2011, 05:36 PM
A pic of the unit.

Ron

Pete's Metalshaping
08-09-2011, 06:34 PM
Ron,

Thanks for re-posting the plans.

Larry

ronh72c10
08-10-2011, 09:31 AM
A video overview of the stand:

http://www.youtube.com/embed/7ZdFtGeVJvw

Ron

Overkill
08-10-2011, 09:58 PM
I have basically the same design, and the problem I have is the small stub that replaces the handle, going into the shrinker, will work its way up and out of the hole. It has also worn a groove into that stub.

My solution - if I ever get to it, will be to replace the stub with harder metal, that is bent so that the angle between the pulling rod and the stub isn't so great. Bought a couple of HF pry bars, as they are hard and the right size, to make the new, bent stub, out of.

Others that have had this design apparently haven't had the issue. Why I do, I'm not sure, but thought I'd add the comment.