[Dr_C2]

Then plan:

As mentioned earlier, the ‘small’ SSD compatible decoder sits above the motor with a two-wire ultraflexible connection to the sure-change mounted LED. The LED is not show fitted in the above photo. Happily it does all fit.

We decided to replace the ‘simple spring’ style of universal joiner with a propshaft ‘liner’ approach to reduce internal transmission friction/loading.

The photo shows six of the required liners. These have an outer diameter of 2mm and an inside diameter of 1.5mm. Perfect!

The pinion gears fit ‘tightly’ onto the liner using a slot.it pinion pusher/puller. The liner is then a sliding fit onto the 1.5mm motor shalf. This is where the high temperature epoxy comes into play. Not yet tried - so if anyone has a better idea please let us know?

Positioning while the epoxy cures will be critical to achieve the correct propshaft length so the pinion correctly engages length-wise with the crown gear.

The final step will be to install axle stoppers to set the optimal meshing with the crown gear.

So that’s the plan :)

c