Not much done today, ended up having to relign the lathes headstock it was cutting holes at strange angles, I think I hadn’t done the headstock screw up tight enough so the vibrations over time had allowed the head to move slightly, took me a good two hours messing about getting it to realign correctly.... with that said I aimed to make up the prop shaft coupling today and three attempts later I finally made one up that’s spot on...
It’s tiny in size 6.5mm in diameter, with motor spindle m3 hole, tapped for grub screws, the photo shows the screws very long.. they are the only spare ones I could find which are 8mm long, I will look in my spares box later for some 3/4mm ones so they don’t sit so pronounced, it’s a minor Thing. Even with them slightly long I doubt it will “unbalance the motor” seeing how there is one each side.
And yes I could have made the coupling thicker... but I used a scrap bit of 8mm stainless rather than cutting into my new stock, so it’s diameter was fixed from cleaning up surface marks from the vice. Long as it works all that matters and it was free! (Almost if you discount spending £10 on new taps, I know I will, it will make me feel better. Haha)
I’ve yet to tap the internal thread to M4 for the shaft as the taps have still yet to arrive in today lack of postman... I think it’s reduced service at present so I can only shrug as to when I might see them. But the coupling is pretty much done... so I can start mocking up the electronic tray for servo and motor, talking on rudder... I had to order a tiller for the rudder shaft, I literally had no more spares in the box for a 2.5mm shaft, but that worked to my advantage as I also ordered an adjustable linkage set since the servo was to be further to the front than the plan states, so I need to work as a slight angle to get the linkage to work correctly, the linkage set, is not a ball joint system that I would normally use, it’s one of the fast electrics exterior rudder with the spigot on the end, this I think will allow me to fit the linkage almost flat in the boat since I can mount it upside down.
Anyway lots of plans very little action... roll eyes.... have faith, my plans usually all come together in the end..