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Fitting a Chuck to a Rotary Table

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Joseph Noci 107/12/2018 07:16:00
1323 forum posts
1431 photos

Just made 12 M8 fine stainless hex-head bolts for a mates bike - made the bolt from round bar and machined the hex on the rotary table using the 3-jaw chuck. Centred the chuck with a piece of 8mm bar in the chuck, and then did the bolts one after another - no faffing with 4 jaws ( or 2 at least..) each bolt time...The chuck centres as quickly as one would centre a bar in a 4-jaw.

The same backplate /centering ring also takes the 5C collet chuck, so the centering ring mechanism works a treat.

Joe

Jon08/12/2018 21:17:18
1001 forum posts
49 photos

Drill through the chuck and in to rotarty table and thread, job done.


Got a piccy on here you can make out two screws going through.
https://www.model-engineer.co.uk/sites/7/images/member_albums/75533/628887.jpg

Tim Stevens08/12/2018 21:22:19
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1779 forum posts
1 photos

You will find that it turns out not to be critical, getting the hex exactly in line with the shank of the bolt. Many commercial bolts are going to be worse, in this respect, than yours.

Cheers, Tim

larry phelan 109/12/2018 12:41:30
1346 forum posts
15 photos

Some great ideas there regarding Rotary tables,much food for thought !

Thanks everyone smiley

Chris Trice09/12/2018 15:38:29
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1376 forum posts
10 photos
Posted by Ian Parkin on 16/07/2010 18:24:26:
The way I get it concentric is place my morse taper test bar in the hole in the RT
then place the chuck over it
clamp the jaws onto the test bar then bolt the chuck down
undo jaws and knock the test bar out
 
Ian

Edited By Ian Parkin on 16/07/2010 18:27:09

I do the same.

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