Geeetech

Well, using a hardened steel allen wrench, the screw holding the heating block on stripped too. The factory overtightens and as a result I need a whole new head just trying to change a freaken nozzle.

The flimsy wrench that comes with the A20M bent trying to loosen the nozzle. I used a craftsman wrench. The brass stripped. Tried vice grips. Is the next resort a new heater block? Thoughts. It is not coming out.

That did the trick

I just assembled my A20M and I have even more play in the bed than that. Nearly 1cm of play. A bit disappointing out of the box. I will try the adjustment suggested.