Calibrating the MakerBot Thing-O-Matic
The machine should be calibrated, the calibration data are saved in the machine. You can view them in GCode through:
Machine -> OnBoard Preferences -> Homing
Current working values for iMAL's Thing-O-Matic :
X home offset (mm) : -54.281 Y home offset (mm) : -56.448 Z home offset (mm) : 97.35
The most critical value is the Z offset, which tell how close to the surface the Makerbot will start printing.
If for some reason you need to calibrate:
Calibrate phase (to do after powering up, every day you use it)
(the toolhead should be cold, clean without any drop of plastic)
Open Control Panel window
- using the x,y control buttons, move the platform center under the
- using the z control button, set the z (extruder height) about 1 cm above platform
- Disable the stepper Motor Controls
- turn manually the z axis screw so that the extruder head touches the platform (but without pressing)
Close Control Panel window
Now save the calibration coordinates in the software:
Open the script file :
and Run it.
At the end, it should display: Coordinates are saved!