1.5GT 21 / 26 Teeth Pulley For 6mm 9mm Timing Belt For 3D Printers

High torque arc grip 21 and 26 teeth 1.5GT timing pulley.

Bore 5mm. 6061 Aluminum alloy. Pitch 1.5mm.

After installing 21T and 26T 1.5GT pulleys you will need to make changes in your printer.cfg file

Pitch * Number of teeth:
1.5 * 21 = 31.5 (for 21T pulley)
1.5 * 26 = 39 (for 26T pulley)

So, for example for 26T pulley:
Find the sections stepper_x and stepper_y and change the rotation distance to 39 as followed:

[stepper_x]
...
rotation_distance: 39
...

[stepper_y]
...
rotation_distance: 39
...

For 21T change the value to 31.5