Whaaaat? (throws hands into air, runs to check¡)
Phew, my U3 definitely has round section pulleys.
I realise now that round section belts run perfectly well in V grooved pulleys, which would have been considerably easier¡ I think I must be developing some engineer¡¯s OCD (is this a good thing? I don¡¯t know¡)
Anyway, the first pulley (the motor one) is done, thankfully without burning out the old motor.
(I knew that test spindle that I turned a while back would come in useful one day).
The old belt just?stretches, so I can use the new motor(s) to turn the next pulley, which will then be installed and used to turn the last one.
When finished it will be 1:1 gearing, as I have the PWM controller for speed.
Cutting waste out with a parting tool certainly helped, but I think this is at the limits of the U3, if not slightly beyond it. Very slow progress!
