I quickly found the dovetail slide adjustment for the lathe. I adjusted it up and it now has zero slop.
I am in the process of tapping out the 5 mm holes in the prop hub. Not experiencing any difficulty, however, I am withdrawing the tap at about half way and blowing out the swarf with compressed air. Finish with a plug tap at 18 mm depth minimum.
My flying buddy John Garland of Garland engineering, Singleton, NSW Australia machined me up two excellent drilling guides on his CNC lathe. That was a task I was not looking forward to doing myself. Two sets of holes, one set at the 4.2 mm tap drill size and one set at the 5 mm clearance size.
Many thanks to John!
I have made a little bracket to mount the hall sensor. All I need to do is to machine up a prop centreing spigot, assemble everything and devise a strong safe bench mount before giving it a start. Oh, and there is the timing and fitting of the magnet in the prop hub to do also. The only magnets I have are very small, perhaps 3mm. Will they be big enough?


I'll post the pictures later when the site responds better.