This process is only to be followed if the machine is substantially out of place;
(the bed is shifted, the chassis is unlevel, the strings have uneven tension, there is not parallelism and perpendicularity with the anchors and chassis.)
1. Loosen Cables, and Check anchors[edit | edit source]
The initial step in the process of full manual calibration is to loosen the xyz cable sets to allow for substantial movement without rope tension.
After the cables are loose, check the anchor points to ensure they are stable to the ground, and ensure snails are in working condition.
2. Take off Extruder head, and Disconnect wires[edit | edit source]
The next step is to remove the extruder head (3 Black Allen Screws) and disconnect the wires from the assembly.
3. Adjust level of chassis[edit | edit source]
To change the chassis level follow the dangling wires on each corner, loosen the screws holding them to the board, and slightly pull or push until the chassis is accurate on each side, then tighten each screw back to secure the lines position.
4. Bring Triangle chassis down[edit | edit source]
After leveling the chassis bring it down onto the print bed and weigh it down evenly across each side
5. Adjust snails[edit | edit source]
Once the bed is secure loosen the snails (Allen key set) then adjust the horizontal strings of all snail pairs on each xyz anchor to match each other. The tension of the strings should be somewhat loose, with no slack.
6. Measure snails parallelism[edit | edit source]
Once each horizontal cable is tensioned similarly measure the parallelism of the snails to the Hangprinters chassis.
7. Measure ABC components for each XYZ anchor[edit | edit source]
This step requires a meter stick and square for accurate measurements, it can also be completed with a laser level.
First measure the Y coordinate for anchor A, which is from the edge of the snail of the chassis corner to the edge of the corresponding snail on the chassis
Secondly measure the X and Y for both the B and C anchors;
The Y is measured from the edge of the chassis to the far rope of each pair, and the X is measured from the alternate snail to the edge of the Y line if it was continued through the whole bed
(This process is more manageable by following guidelines previously made on print bed, if guidelines are not there it is recommended to make them)
This paper is meant as a more comprehensive guide to calibration than the one made by FAST Laboratories.
