A new toolpost spindle, part 1

 

 

 

3D printed expanding fixture for op 2

 

 

Drive unit mounting parts

All bonded together

A torsion-less bar, if you will

Assembled Rotors

That's looking like a drive unit

 

Missing a rotor

Machining a new shaft for the rotor:

Improvised chip deflector for roughing

nice

Other side done

bearing and lock ring test fit

Next to the stock shaft.  Going for a normal press vs the straight knurl on the stock shaft.

I don't own a 2d printer and didn't plan far enough ahead to print the drawing at work, so this happened

Making More Kart Parts

 

Single-point keyway broaching

Ring Gear Machining

Lathe Spindle Motor Upgrade

Motor bracket laser cut and bent from .188" steel by SendCutSend:

Crufted NEMA-56-size Clearpath servo motor - integrated motor drive, plugs straight into single or 3-phase mains.

1:1 belt to the spindle:  

Pile of junk being replaced:

Spin-down comparison vs the original motor from 900 RPM: