A10 Y-axis rail stabilizer block

thingiverse

This is a rapid solution for the somewhat unsupported Y axis rail of the Geeetech A10 printer. The printer's design relies on a single 2040 rail placed crosswise atop a square 4040 rail, leaving a 20mm square bolt pattern that holds the rail, carriage, and Y stepper motor in place. As a result, there is significant vibration (ring) as well as skipped steps due to high mass jerks when printing large or multiple objects at decent speed, regardless of how tight the Y belt may be. To mitigate this issue, I simply designed a rectangular block with two linear extrusions that fit snugly inside the v-slots of the 4020 rail and sit flush against a flat surface underneath the printer, such as a table. In essence, these are "legs" for the rail. Two of these legs are needed to resolve the issue, one placed in front and the other behind next to the stepper motor. When the carriage accelerates in the Y direction, the two legs prevent the rail from teetering on the 4040 base rail. Note that the height was determined using calipers, taking into account the 5mm thick rubber "feet" pads Geeetech installed on the frame.