Ralph 12 Nm is a beast if you run it at its rated current. I have one on my mill and managed to shear a drive key using the stepper at full rated current. Fortunately the stepper drive has lower current settings.....its on about half rated current now.
Don¡¯t (how do I know ? ) use it at full current with out a trip switch to prevent end stop crashes.
By the way with Lindo¡¯s corollary.....tools are not the only things cats make off with ! interesting curls of steel and aluminium also walk too. And they end up in funny and not so funny places....a freshly made bed ?
And of course O¡¯flanagan held that Murphy was an optimist.
Regards ?Bob