Monoprice Maker Select 3D Printer V2
Summary
Leveling Journey
The IIIP was donated by Jeff after it failed to level for too long after a glass build plate upgrade. It was indeed nonlinear to level even with our best 3d printer technicians.
The old formed sheetmetal base was upgraded to a thick aluminum sheetmetal base and leveling was tried with that. It was still relatively nonlinear to level.
It leveled fine with the glass build plate removed and an adhesive PEI sheet applied.
Hotend Journey
The hotend is currently "upgraded" with a chinesium bimetal hotend. There is a stainless steel heatbreak section which is threaded (and locked with JB-weld) onto a copper section where the thermistor cooling is. We do not have formal testing data to show if the heatbreak performs better or worse than the original PTFE-lined hotend. The original PTFE-lined hotend and compatible extruder tip should still be stored in a plastic bag somewhere in the electronics room.
The hotend thermistor was deemed inoperable in late 2021, and the printer was placed onto the makerspace "do not fix" list. The software compensation that was applied to the thermistor had it set so hot that the 3d printer would falsely report hotend overheats. It has since been replaced as part of a creality and IIIP thermistor replacement project in 2022-07-20.
Other 3D Printers
This is a part of our ongoing effort to document our 3D printers.