When adjusting position with sliders, it is possible to jump too far of a position; reaching the end of the axis and forcing continued motor drive (grinding). Dobot already confirmed this as an issue on Mooz 2’s
When adjusting Z height, Mooz will automatically adjust position increments from 10mm to 1mm to 0.1mm as it gets closer to the build plate, however when pressing up, it will keep the original selection which is a slight nuisance when you want to nudge the head up and down to confirm position is ideal
When levelling build plate for Z, Mooz will drive X & Y axis (to move to positions 2 & 3) however, it either does so without adjusting Z, or Z is done at the same time. If the Z points are done tight to the build plate or the build plate isn’t perfectly level, nozzle head can drag along build plate?
Mooz is advertised with a build volume 130mm cubed, however build plate is exactly 130mmx130mm, so even though it can certainly print 130mm cubed, anything that prints against the boundaries may print off-edge. Future build plates should be increased in size slightly; above advertised print dimensions.
The “stop printing” button does an absolute stop on the printing and causes grinding of axis on faster prints, please “wind down” to a safe speed and stop.
- I think Dobot could do a lot more with the screen. The calibration “page” is slightly cryptic in operation using symbols only with no feedback to the user in respects to what is happening or required from them, yet there are only 3 actual options?
- Level Z bed
- Zero Z
- Set X/Y origin (i.e. for CNC)
Why is it we don’t have simple, “plain” options such as above and remove the xyz sliders (xyz sliders are unnecessary by default), and then give a guided walk through on the screen in respects to what you are supposed to be doing, i.e. to level Z, zero Z, set origin?
I’ve been away for 4 days (I work away) and while I remembered the Z bed levelling process, I forgot the Z zeroing procedure already, and it seems silly I have to get the manual out when it could be on screen? I know there is hardware limitations but I certainly see this as possible.
Motor grinding and fast printing.
I previously mentioned to Dobot that at 80mm/s printing, there is an apparent grinding sound with quick changes in directions. At 160mm/s printing this is only much more apparent.
I believe Mooz can certainly print in excess of 160mm/s with little to no loss of quality (my 160mm printing, albeit short, looked exactly the same as =< 80mm/s and adherence /strength was perfectly fine) , but grinding is an issue and likely not good for the overall health of the printer.
is there anyway mooz can be updated to “slow down” when approaching a direction swap or generally stop the grinding? this should also lower vibrations and increase print quality. Hammering an 80mm/s left print directly into a right print seems to be the current approach based on the grinding.
please note, while I say 160mm i can only say i set it to 200% on an 80mm print. I asked for confirmation on exact maximum speeds but only got told that ‘yes the motors can go faster’, however motor pitched changed with each increment so presumably it was 160mm.