Turning Archive 2004

Subject:
Vicmarc scroll chuck

Wolf Kiessling
>I have a Vicmarc VM100 scroll chuck that has an insert for a 1"8tpi spindle. I will have to change the insert to accomodate a 1.25" 8tpi spindle if I get the new lathe I want. I tried to remove the insert this morning but find myself unable to do so. I inserted the aluminum lever into the insert hole but can't turn it. I started beating on it with a hammer but stopped very quickly before I broke the lever.

Is there a trick to changing the insert? Can anyone provide some insight for this? Does that thing possibly a left hand thread? The owners manual certainly doesn't say anything about that.

Wolf Kiessling

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