Electric motor advice needed please

The motor has broken on our Clarke lathe so I've been looking for a
replacement. The switch broke too and this it proving difficult to replace.
The systems runs a 3/4 hp with reverse and a 16mm drive shaft.
I can source a 3/4 hp with 19mm drive shaft and reversing starter at
around £180 - gulp
I've thought about just getting a cheap pillar drill and using the motor
and one-way switch...
Just wondered if anyone had any other leads/ideas
thanks in advance
Lee
Reply to
Lee Griffiths
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You should be able to get a cheaper motor on ebay and an NVR switch.
The shaft can be turned down on the lathe. Bolt the motor on the bed dead true on the lathe axis. Mount a tool bit at centre height or a thou below. Power up the motor and reduce the shaft until the pulley fits. Make sure you are turning parallel by regular measurement.
Bob
Reply to
Bob Minchin
Goedendag Lee ;-)
Build the motor yourselve?
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(Don't worry, I took care of spammers and viruses right from the start of the group)
Excellent motorbuilding articles by Brian Mulder,they cover the all the basics, a must read:
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-> Articles by SouthEasterners.
-> Electric Motors - part 1-5
Do-it-yourself motor homepages, manuals/tutorials, checks and tests in this motor builders tips and tricks thread. The checks and tests may save you from frying your controller or motor. Thread is active, bookmark it for future reference and subscribe to it:
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(sticky thread, at top of that subforum)
The 'bible'
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Two instructive motor winding/assembly videos, 14 & 10Mbyte respectively (cd-rom and lrk have different winding diagrams!)
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Vriendelijke groeten ;) Ron van Sommeren
near Nijmegen, the Netherlands
int. electric fly-in
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Reply to
Ron van Sommeren
Presumably this a single phase motor ? Are you stuck for space (motor diameter and length), or is there plenty of room ? Interesting to know why it went, a 3/4 horse should be plenty for a small lathe. Maybe it overheated and the replacement would benefit from extra cooling. Machine Mart list a cheap and cheerful motor that might do the job (3/4horse 19mm) for =A370 ish - but then the same may happen to that.
Or maybe you should take the opportunity to swap to three phase motor and use a phase converter, as modern phase conveter/inverter units allow all sorts of nice soft start, fast stop options, so act as your starter, and at the same time they allow speed control.
Steve
Reply to
Cheshire Steve

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