Arbour dia and length for Commercial Clock Wheel Cutters

[Chris TickTockParticipant @christicktock]

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

[Chris TickTockParticipant @christicktock]

[Martin KyteParticipant @martinkyte99762]

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

[Chris TickTockParticipant @christicktock]

Posted by Martin Kyte on 18/08/2020 14:16:42:

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

[Steve CrowParticipant @stevecrow46066]

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

[Chris TickTockParticipant @christicktock]

Posted by Steve Crow on 18/08/2020 15:48:14:

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

[Martin KyteParticipant @martinkyte99762]

You can buy 1 Morse blanks you know.

regards Martin

[Peter HallParticipant @peterhall61789]

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

Pete

[Chris TickTockParticipant @christicktock]

Thanks Guys, all helpful

Chris

[John HaineParticipant @johnhaine32865]

Arbor! It isn't a leafy glade.

[Chris TickTockParticipant @christicktock]

Posted by John Haine on 18/08/2020 20:05:47:

Arbor! It isn't a leafy glade.

well spotted Jon

Chris

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