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Belt Skiper aid for KOBRA S1

A simple aid to lock the belt movement to perform lead screw sycn calibration
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updated February 8, 2026

Description

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So the anycubic kobra s1  bed comes terribly leveled out of the box lot of times. This simple tools helps manually level all there bed point ( front left and right and back middle) where frame is connected to z motion system by the way of  belt skipping method.  Whit this method.  This clamp locks the belt in place so you can individually  rotate each lead screw and skip the belt on pullys with out rotating other two lead screw. There for rice and lower each connection point individually. 

FIRST: This calibration method kind of requires Rinkhals overlay to be installed on printer, since looking at bed mesh is needed when performing this bed level calibration. 

https://github.com/jbatonnet/Rinkhalshttps://github.com/jbatonnet/Rinkhals

STEP_1:
First you need to fix the BASE in to position like on picture. You can do that by super glue it to base plate  or by drilling two holes in hexagon holes position and using two m3 screws to with hex nut to fix it.  (Caution: Drill in the right holes)

STEP_2:Then you put the belt in the gap on the LOCK and press it in to the groove on the base.You can secure it with 2 m3 self taping screw that comes with the printer, but it is not necessary if you press the lock in to the groove enough it should be fix enough.

STEP_3: when the belt is immobilize, you release the tension on the belt by unscrewing the tension screw and removing the spring.

STEP_4: According to bedmesh map you rotate one of the three lead screws. Clockwise for bed to go up, counterclockwise for bed to go down. 

STEP_5 Put back the tension spring and tighten the tension screw,  Then un-clamp the belt. You can remove the clam part of the skiper aid or just rotate it like on the picture.. 

STEP_6 re run bed mesh an repeat the procedure if needed....  

 

 

 

 

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