Sherline Threading Encoder Mount

This is the Ahha CUI Stack 1000 line threading encoder. The shaft diameter is 1/4" and the OD is approximately 1.5"

I needed to design an adapter which would mount this encoder on the headstock of the lathe and not interfere with the normal operation of the lathe.

This is a stock image of the Sherline lathe which I will mount this encoder. The mount will work on all versions of the Sherline lathe.

The encoder mount will also function on the Sherline mill for any operation where you may need to position the spindle in conjunction with a programmable spindle speed control.

Here you can see the flag shaped mounting plate which clamps on the outside diameter of the encoder.

Here you can see that the adapter plate is attached to the Sherline spindle housing with 2 button head screws.

Another view of the bracket and encoder.

Here is the front view of the belt cover that I designed and fabricated.

In this view of the belt cover you can see that the cover has been hogged out leaving a standoff which locates the cover to the adapter plate and provides a means to rigidly screw the cover in place.

An additional spacer was needed to fill the space between the encoder mount plate and the belt cover.

End view of the completed Sherline encoder mount bracket and belt cover.

Another view of the completed Sherline encoder mount bracket and belt cover.

In this view you can see the CPC connector that has been installed between the DC motor and the factory speed control. This connector allows the stock speed control to be disconnected and the motor to be connected to the programmable 4 quadrant drive which is controlled by the CNC system.