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Seeking advice on DC motor speed control

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NormanV:
I am hoping that someone can advise me on this. I have obtained two 180v 2.5A 1/2HP DC permanent magnet motors. I wish to control the speed of them and have found this on ebay:-  http://www.ebay.co.uk/itm/161069549443?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649
To my limited knowledge it looks as if it would do the job, I aim to use the motors on a lathe and a milling machine. Could anyone tell me if they think that this controller is suitable.
thanks in advance.
Norman

John Rudd:
I see no reason why it won't work.....
In fact I have one exactly the same......

PM sent...

philf:
Norman,

I would add another resistor in series with the speed control pot to limit the output as at 220V output it could well damage your motor.

Beware that you may also get clobbered for VAT which isn't too bad at about £7 (on the value of the goods plus postage) but Royal Mail will charge £8 on top of that for collecting it (and to add further insult to injury they'll charge VAT on the £8). You may end up paying around £51 in total. If you're OK with that then fine. It seems to be the luck of the draw as to whether the carrier will try to get the VAT out of you.

Phil.

John Rudd:

--- Quote from: philf on January 11, 2014, 08:49:07 AM ---Norman,

I would add another resistor in series with the speed control pot to limit the output as at 220V output it could well damage your motor.


Phil.

--- End quote ---
Ooops, yes I omitted to point that factor out......my bad..

NormanV:
What size resistor?
Phil, as to the VAT on the service(?) from Royal Mail I had a similar problem in a previous life. I used to be a wine maker and there was excise duty to be paid on it and then VAT on the duty! Taxing the taxes, they do it on petrol also.

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