Someone with a recent Cowells ME90 lathe

This topic has 3 replies, 2 voices, and was last updated 9 September 2020 at 11:58 by Renaud Olgiati.

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8 September 2020 at 13:45 #494698
Renaud Olgiati
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@renaudolgiati73671
My Cowells lathe is almost forty years old, from the days when it was not a 90E or 90ME, but a "10-200A Lathe with Auto-traverse".

I read in the recent 90ME data sheet from the Cowells site that the lathe now comes fitted with double pulleys on both motor and countershaft, giving the lathe two speed ranges.
I think this might be a worthwhile upgrade to my machine, which I could easily machine myself, and in the hope of avoiding tedious calculations, could a kind soul who has such a machine give me the outside diametres, for both speeds, of those pulleys ?
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8 September 2020 at 13:45 #27622
Renaud Olgiati
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@renaudolgiati73671
Help needed with dimentions of pulleys.
9 September 2020 at 11:04 #494835
Kiwi Bloke
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@kiwibloke62605
Hello Renaud.

The driven pulleys on the countershaft: 73.99mm, 57.62mm.

The motor pulleys: 26.59mm, 45.09mm.

These diameter measurements are across the 'top' of the Vee (max. dia.) and are by digital calliper. Access to the motor pulley in situ is a bit awkward, so say give or take 0.02mm.

Good luck with your modification!
9 September 2020 at 11:58 #494848
Renaud Olgiati
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@renaudolgiati73671
Posted by Kiwi Bloke on 09/09/2020 11:04:30:

Good luck with your modification!

Thank you; I can now start to turn metal, having found in my store of old rubbish a piston of the right diametre, the crown of which will become the ountershaft pulley !
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Someone with a recent Cowells ME90 lathe

Someone with a recent Cowells ME90 lathe

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