Whats wrong with the extruders? I just got new stock of my setups. They are great.
Printable View
Really haven't ever had to source any. Maybe monoprice? They have flashforge belts.
I'll have to look but it is should be at the default. I was still having first layer issues but this cube has no bottom layer. The height issue gets worse with taller prints so it seems it compounds by layer.
The last prints before the meltdown I was getting the sides dialed in pretty good but a 20mm high cube no top or bottom was now 19.8 and that was consistent over a set of six.
On a positive note from the meltdown, QIDI was very fast to respond to my request for help on how to replace the belts and align the gantry. The guy said " do not worry we will get it going again". So I give QIDI credit for effort with their product. Problems are easier to not sweat when you have support that really tries.
Of course, any one else can chime in here on advice - procedure!