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Toolpost Miller

setting up with a spindle motor

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NICHOLAS ELLIS04/05/2017 17:29:23
9 forum posts

I have purchased a chinese spindle motor, with variable speed, which can be mounted as a toolpost miller, gear cutter etc.'The unit looks fine but comes with a #n ER11-A collet which is for a rather too small 1/8" shaft.

This collet holder is mounted on the motor shaft, which is 1/4" and looks as if it is held on by 2 grub screws.

However If I slacken off or remove these screws It will not budge, even with a puller. If it is threaded, which I doubt, there is no way to hold the shaft to undo it.

I was hoping to buy a similar holder for an ER 20 collet, so I can use it with Thornton cutters, for cutting wheels for clocks.

Does anyone know how to remove this collet holder please? Your comments woild be most gratefully received!

N,Ellis

Nick Wheeler04/05/2017 18:24:49
1227 forum posts
101 photos

I set mine up as it came:

 

millingmotor[1].jpg

 

and

 

millingmotor2[1].jpg

 

That's the vertical slide left over from my mini-lathe mounted to a Wm250, and the spindle motor mount bolted directly to it.

 

To answer your question, I think the collet holder is machined directly into the spindle.

Edited By Nicholas Wheeler 1 on 04/05/2017 18:25:54

Nick Hulme04/05/2017 18:48:27
750 forum posts
37 photos
Posted by NICHOLAS ELLIS on 04/05/2017 17:29:23:

I have purchased a chinese spindle motor, with variable speed, which can be mounted as a toolpost miller, gear cutter etc.'The unit looks fine but comes with a #n ER11-A collet which is for a rather too small 1/8" shaft.

ER11 Collets are available up to 7mm

Martin King 204/05/2017 20:22:42
avatar
1129 forum posts
1 photos

Hi guys, can you pls post a link for this spindle supplier?

Martin

NICHOLAS ELLIS04/05/2017 22:50:21
9 forum posts

CNC ROUTER MILLING Air-Cooled 0.4KW Spindle Motor & PWM Speed Controller & Mount

Look for this on ebay. Nick

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