Hi xpylonracer
To do this, I first have to remove the three-jaw chuck from the main spindle.
As far as I remember, the spindle mount is a very unusual system on this "Asian copy" of an EMCO Compact 8.
I've never seen a spindle mount like this before.
When I bought a very high quality Roehm Ø 110 mm ( Ø 4,33 in) three-jaw chuck many years ago,
I had to search for a long time until I found something suitable.
Then I had to make an intermediate flange out of gray cast iron for the three-jaw chuck as an adapter to the main spindle.
I'll make you a sketch, but give me some time.
But I can only determine the dimensions for you with a caliper and a protractor.
For the cone, this is more of a rough estimate.
Dieter
Roehm Ø 110 mm (4,33 in) three-jaw chuck
Spindle mount
Gray cast iron intermediate flange
Three-jaw chuck mounted on the flange
To do this, I first have to remove the three-jaw chuck from the main spindle.
As far as I remember, the spindle mount is a very unusual system on this "Asian copy" of an EMCO Compact 8.
I've never seen a spindle mount like this before.
When I bought a very high quality Roehm Ø 110 mm ( Ø 4,33 in) three-jaw chuck many years ago,
I had to search for a long time until I found something suitable.
Then I had to make an intermediate flange out of gray cast iron for the three-jaw chuck as an adapter to the main spindle.
I'll make you a sketch, but give me some time.
But I can only determine the dimensions for you with a caliper and a protractor.
For the cone, this is more of a rough estimate.
Dieter
Roehm Ø 110 mm (4,33 in) three-jaw chuck
![roehm-futter.jpg roehm-futter.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/108/108097-roehm-futter.jpg)
Spindle mount
![spindelaufnahme-resize.jpg spindelaufnahme-resize.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/108/108098-spindelaufnahme-resize.jpg)
Gray cast iron intermediate flange
![zwischenflansch.jpg zwischenflansch.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/108/108099-zwischenflansch.jpg)
Three-jaw chuck mounted on the flange
![futter-montiert.jpg futter-montiert.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/108/108100-futter-montiert.jpg)
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