Solder:
I do a lot of soldering. You need to get the metal good and hot for the stuff to stick properly. Simple contact with the hot metal is not enough to give you a good joint. The temperatures involved are well above where the motor starts to get bothered.
Torque:
My main concern on torque is for acceleration and deceleration. I agree that the "smooth running" torque is quite low, even on a 2X LISA. Since most of the time in any move is either speeding up or slowing down, those speeds eventually do matter.
Clamp:
A two piece clamp (as opposed to a bushing) could indeed be made pretty easily. It would take a bit of modeling to see how well it fits inside the bolt pattern of the motor (using front facing bolts...). The whole lathe digression is indeed constructing excuse for a lathe not a need for a lathe.
Other motions:
There are a *lot* of other approaches to moving a gizmo around. Rotary build table with z lift is one that you don't see very often....
I do a lot of soldering. You need to get the metal good and hot for the stuff to stick properly. Simple contact with the hot metal is not enough to give you a good joint. The temperatures involved are well above where the motor starts to get bothered.
Torque:
My main concern on torque is for acceleration and deceleration. I agree that the "smooth running" torque is quite low, even on a 2X LISA. Since most of the time in any move is either speeding up or slowing down, those speeds eventually do matter.
Clamp:
A two piece clamp (as opposed to a bushing) could indeed be made pretty easily. It would take a bit of modeling to see how well it fits inside the bolt pattern of the motor (using front facing bolts...). The whole lathe digression is indeed constructing excuse for a lathe not a need for a lathe.
Other motions:
There are a *lot* of other approaches to moving a gizmo around. Rotary build table with z lift is one that you don't see very often....