Eccentric Screw Chuck

July 23/2006
I made Jig to make eccentric works.I think that it is possible to use it more simply than 4-jaw chuck.Drawing
1.I make a disk part.The material is a duralumin with 10 mm thickness.The duralumin is moderate hardness and the shear-ability is outstanding.
2.I manufacture using WT-300 from here.I remove Joe of the Axminster and I install a disk.I confirm a center using the dial gage.
3.center hole with the center drill.
4.I open hole ø6.8m/m under M8.
5.Tapped M8.
6.Next, I manufacture a boss.
7.Tapped M8.
8.Next, I tapped of M5 at the boss of the side of the turn.This is for the hollow setscrew.
9.I glue together the bolt of M8~30L to the fixation boss.After that, I drum the spring roll pin of ø3m/m.
10.I force the hanger bolt of ø8m/m~40L into the turn boss.
11.All parts were complete. Next, a assembly.
12.I turn the rotation boss 30degree and mark it by the needle.
13.I mount it in the Axminster chuck which removed Joe.
14.I tried. There is a eccentric of 12 mm and it is twisted. It is scary though it is interesting.
15.The material is beech.
16.I set a number to know a turn position.

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