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Made from 1/2" x 3" flat steel, this frame is heavy and very strong and solid. The two larger 3.5" long bolts are custom-made from 5/8in-11 threaded rod, they have a 45-degree cone tip and locking nuts. The small vertical stopper-bolt is made from 3/8" rod. It is 2" long with 1" dia washer welded on top and a locking nut. The small bolt setting determines the bottom point of arm travel. The pivot sockets on the jigger arm are 1" long and made from 1" steel rod, each has the 45-degree recess machined into it. The arm can be moved left or right and its tension set by adjusting the two larger bolts. The weighted collar on the back of the arm employs two pieces of 1" thick flat steel, it is heavy (important for convenience-of-operation). The triangular notch enables the arm to be lifted higher. The weight colar needs some sort of set screw to hold it in place. A number of corners need to be rounded or rubber-padded for safety reasons. If you would like this 3D file in Fusion 360 and STEP formats, it is available in the Files manager in your Insight-live.com account.
URLs |
https://insight-live.com/insight/recipes.php?OpenFile=He8Bgn7CMv
Shimpo jigger arm drawing |
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