I have a Monoprice Maker Select v2. It is the kind where the moving plate (heat bed) provides the Y-axis and the moving extruder provides the X-axis. It has a fairly rigid sheet metal frame. In addition, I added steel rods has Z-braces.
I see some pretty obvious ghosting. This happens for an inch or so right after every sharp turn. Clearly, vibration is to be blamed. I found two simple techniques that improves the situation:
- soft floor mats under the feet (allowing the machine to move freely)
- bolt the machine to the desk (preventing the machine from moving)
Surprisingly, these two opposites provided exact same level of improvement for ghosting. My question is: which approach is better? Moreover, to further improvement, should I use...
- (extreme version of 1) hanging the printer from the ceiling using bungee cords (maximize the freedom to move); or...
- (extreme version of 2) bolt the printer to garage floor (0 freedom to move) ?
Personally, I would select the 2nd option.
The forces and vibrations inside printer will propagate over every single part connected. Having that in mind, making rigid external frame is just a part of the solution.
Please consider some extra points:
- filament spool on the top bar adds vibration to the frame (get a rubber pad to separate hook from the frame - but I will remove it from the printer)
- steper motors are mechanically noisy as well - get a stepper damper (as a piece of thin rubber between the motor and bracket)
- moving speed and acceleration also adds a pressure to the construction, so high acceleration and braking need to be reduced (when you put hand on the frame you will fill all those movements (close your eyes))
- stepper drivers also have an impact on the quality side (circled model skin)
- you also could add an extra tensioners from top of the frame to the base.
Fixing it to the floor will be a benefit and considering points above will also improve printing quality.