Arbour dia and length for Commercial Clock Wheel Cutters

Hi Guys,

I intend experimenting with a commercial clock wheel / pinion cutter. I have looked at a few sites but am unsure on a few points. Could any one help?

firstly My Mill is Sherline and Sherline do supply commercial cutter arbours as follows:

7/8 dia arbour. These come as short or standard length.

1 inch dia arbour again in short and standard length.

So are most( relevant to clock work) cutters in the UK 7/8 or 1 inch and is the standard length a better first time purchase over the longer standard arbour. I imagine the different arbour lengths are to accommodate z axis space but as yet I am fairly ignorant over these matters.

Chris

Presumably you have a lathe, why not turn up your own arbors to suit whatever you are doing.?

7/8" and 1" sound like arbors for Gear cutters which are generally larger than clockmakers cutters.

Typical PP Thornton pinion cutters are 24mm dia around 4.5mm thick and have a 7mm bore.

**LINK**

regards Martin

Thanks Martin,

As i am not yet retired time can be a big restraint and I still would need to know the right size arbour to make so your detail is useful. I have some old I would imagine involute cutters I was given with a 25mm bore. I have been advised these can be used to touch up teeth or leaves but hey as yet I have little idea, so asking as much as possible along side my research.

Chris

Here's a Morse No1 arbor I made for my Sherline. Using the spacers and sleeves, it holds Thorntons Mod 0.5 cutters and 0.5 mm slitting saws at the same centre height.

Cheers

Steve

Steve,

A big thank you, I am just ordering the lathe attachment to make the MT.

Chris

You can buy 1 Morse blanks you know.

regards Martin

You don't need an attachment to make the MT. Just swivel the headstock to the right angle.

Pete

Thanks Guys, all helpful

Chris

Arbor! It isn't a leafy glade.

well spotted Jon

Chris