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8th February 2024, 11:10 PM #1Senior Member
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vicmarc multi purpose jaws not step jaws
Can anyone enlighten me please.
How do the Vicmarc multi purpose jaws differ to the step jaws.
I have searched the internet for some info but all I can find is the description which
suggests they are versatile as,"By removing one or more of the dovetail segments from these jaws, they are adaptable to a variety of uses"
How can this work? are they suggesting you remove 1 jaw and only use 3 ?? surely not.
Cheers
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8th February 2024, 11:29 PM #2
Looks like the inner dovetail segments can be removed.
Swifty
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9th February 2024, 08:19 AM #3Senior Member
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Both rings are removable and there are also some threaded holes that would take studs or pads I think. Not really big enough to work as Cole jaws though.
With the multi purpose jaws you can effectively make two large sizes of dovetail jays by w
fitting the appropriate rings.
Step jaws have a number of sizes fixed on the jaws.
The chuck manuals available on the Vicmarc Website have good diagrams.
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9th February 2024, 08:47 AM #4
The multi-purpose jaws can be used with all four, three or two of the dovetail segments to hold irregular (face plate) blanks, or for performing offset turning on face plate orientated blanks for items such as necklace pendants etc.
They can also be used with custom made secondary jaws bolted to the Vicmarc jaw bases or hold down clamps / buttons, with the dovetail segments removed. The secondary jaws can be made from plastics, wood, plywood etc.
Like everything in turning there are associated hazards and practical / safe limits in undertaking such tasks using the above proceedures.
ps Mike Darlow covers a wide range of work holding techniques in his books, including supplementary jaws etc.Mobyturns
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9th February 2024, 09:13 AM #5Senior Member
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- Geelong, Victoria
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See
https://www.vicmarc.com/_files/ugd/4...28ca1dc348.pdf
Pages 14 and 16 have the two sets of jaws illustrated.
Bruce
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9th February 2024, 09:27 PM #6GOLD MEMBER
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Mine are from the 90ies, with 3 sets of jaws. I usually run with the smallest and the largest sets removed. They grip a 108mm tenon, my favourite size.
Rgds,
Crocy.
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11th February 2024, 09:32 AM #7Senior Member
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- Blue Mountains NSW
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vicmarc jaws
Thank you everyone for your replies
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