Dual Z lead screws
After running my printer for a while, I found there was an inconsistency in the Z height. As the printer only lifts the gantry from one side, the other side tended to droop. This caused inconsistency in the prints. The solution to this is to add a second screw, so that both sides of the gantry are raised and lowered together.
doing this has improved the consistory of the prints. Especially as the bl touch results are now more repeatable.
