Power Feed to Milling Machine Table

[Michael GilliganParticipant @michaelgilligan61133]

Posted by here again on 04/08/2016 11:22:11:
Havent seen anyone suggest a 90w 230v speed controlled sewing machine motor..Must be a reason -what is it?I have one looking for a use☺

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You may find it underpowered at slow speed … The nominal full speed is much too high for a table drive, and would require much gearing-down.

Personally, I would use the sewing machine motor for a drilling spindle [as demonstrated by Rodney Jenkins]

MichaelG.

[Ian S CParticipant @iansc]

I used a sewing machine motor to power my Supper Adept, the motor didn't really have enough power, and after very little use the armature burned out, it has been replaced with a 4 pole 180W shaded pole motor. It doesn't have the revs of the universal motor, nor does it have variable speed, but it is adequate, I can take a .010" cut on a 1" diameter bit of stainless ( not sure of the grade, maybe 303).

Ian S C

[AjohnwParticipant @ajohnw51620]

The reason I went for a 24v wiper motor was more power over a 12v one. 24v is usually only used on HGV's and in order to keep the current levels down.

The other reason was for a table feed and possibly using steppers. However if a 12v motor is driven 50:50 on off it should be pretty happy.

I thought that a 4046 might be the nicest and simplest thing to pulse a stepping motor driver with. But I probably have a couple from years ago some where. Also 555's. A quick look bought this link up – a bit garbled

**LINK**

There should be some better info about even though they are usually just used a phase locked loop. As it mentions R1, R2 and C1 sets what it does and I would probably use anything from 5 to 10k for the pot or fixed resistors, The supply voltage wont be critical but 24v is I think too high.

John

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[Keith LongParticipant @keithlong89920]

Here again – another MAJOR drawback with a sewing machine motor is that generally they aren't reversible as they use offset brushes, you buy them as clockwise or anti-clockwise rotation. Also having opened one up to try accessing the leads I quickly gave up on that idea, as the only way I could see to do what I wanted, would have virtually destroyed the motor and connections.

[here againParticipant @hereagain]

I m still looking for a use for a sewing machine motor then!
Jonathon

[Keith LongParticipant @keithlong89920]

Jonathon – I use one for powering a small cross slide mounting milling/drilling spindle, works quite well. You could also use one to power a small tool-post grinder.

[Peter TuckerParticipant @petertucker86088]

Posted by here again on 04/08/2016 17:31:52:
I m still looking for a use for a sewing machine motor then!
Jonathon

Find a sewing machine to put it on.

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