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Wheel holding arbor.

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raynerd:
You know I`ve been thinking about this and these would work a treat in a 2MT as I could use a sleave 3MT to work in either lathe headstock and then remove the sleve to work in the rotab. Only problem I can see is that the effective range 5.5mm as the smallest. This is still a little too large and would really need a working range from 4-8 mm. can you just confirm I am correct?

Chris

raynerd:
I`ve been reading the other thread on making an expanding mandrel. Would it work for something as small as M4?

bogstandard:

--- Quote ---Would it work for something as small as M4?
--- End quote ---

Surely the way to do it is try it, if it doesn't work, you will have your answer.

There are some questions that just can't be answered because we have never done it, time for you to learn something by your own trial and error.

raynerd:
Yes, I may give it a go although my fixed mandrel is working well and besides, the bore sizes for the wheels I need are 4mm, 6mm and 8mm so I know for sure that it won`t expand, probably not nearly enough, to even encompass two of these sizes. It will probably be as effective to make individual arbors for each size and build up a range of wheel holders in metric sizes. The Bergon clock wheel holders are just a straight shank style so clearly this method is used for a reason.
Thanks anyway - again, I`m trying to find one mandrel that will do a job but it looks like most people use a collection of sizes for different wheel bores.

NickG:
So what's next Chris? Is this the main project now or are you back on the QCTP now?!  :poke:

Nick

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