Sailfish firmware makerbot replicator 2
In this tutorial you will learn to calibrate the machine's extrusion rate as well as position sensitivity in the X, Y, and Z, axis. This tutorial works for Makerbot, Flashforge or any Sailfish Firmware printer. Makerbot's firmware Sailfish does not store motor calibrations within the EEPROM, instead it accepts calibration commands in steps per mm. To calibrate your machine we will measure how much the axis actually moves compared to a desired movement in order to calculate what your steps per mm need to be.
In order for the other axes to be calibrated using a calibration cube we must first make sure our extrusion is correct. To do this mark mm and mm from your extruder then use MatterControl to tell the printer to Extrude mm.
Now measure the distance from the extruder to the first mark visible. If two marks are visible: Your printer is currently under extruding and you simply subtract the distance from the extruder to the mark from mm to get the current move length then use the proportion below to calculate the required steps per mm.
If one mark is visible: Your printer is over extruding. Now measure the distance from the extruder to the first mark visible.
If two marks are visible: Your printer is currently under extruding and you simply subtract the distance from the extruder to the mark from mm to get the current move length then use the proportion below to calculate the required steps per mm. If one mark is visible: Your printer is over extruding. To fix this subtract the distance from the extruder to the mark from mm to get your current move length and use the proportion below to calculate your proper steps per mm.
Insert you calculated target steps per mm into the M92 command in place of the current E value then disconnect and reconnect to your printer. While the cube is still on the bed measure the X and Y dimensions then plug these values into the same formula you used for the extruder but using the target value 20mm.
Remove the cube from the bed and measure the height of the cube. Once again use the proportion from before but using 10mm as the target value. Finally replace the Z value in the M92 with the one you have calculated, save this change then disconnect and reconnect to your printer.