Beavermill conversion to CNC

[Andre]

I have been working on the main spindle assembly.
I change it to a toothed drive pulley instead of a V belt.
But as I find out this is not as easy as it looks.
First I redesigning the assembly in my new CAD/CAM module.

[Andre]

The first thing I did was making the core pieces to combine the different pulleys together .

[Andre]

Next thing I did was drill the pulleys.

[Andre]

I had to make a groove in the soft jaws so the pulleys would fit in to it.
And turn it to the right dimension of my pulley.

[Andre]

It is very important centering the piece so the deviation is minimal in this case 0.02mm both in axial and radial direction.
The belt will run smooth and with less vibrations.

[Andre]

Now the workpiece is ready for ruffing out and finishing .

[Andre]

Measuring our workpiece is very important in this case I want to have about 0.02mm play so there will be enough space to glue everything together with a strong adhesive .

[Andre]

Now it is time for facing the workpiece and break sharp edges .
I find it one of the most important things a good machinist got to do (break sharp edges) so our workpiece looks as it coming out a factory and not looks like it came out of the bin.
Kind regards,
Andre.


Experience is the sum of stupidities you have done.

[Andre]

After we made a keyway in the core piece of the motor side we started to glue all the pieces together .

[Andre]

Now it is time for some drilling operations.
First thing to do is make sure your workpiece is correct centered .
The next thing I do is make a centerhole.
Drill with the right size so the holes who needs tapping also can be don.
And break sharp edges.