TA620 platform:

Screw lift, set v-grooves on the platform, used to measure the shapes smaller workpieces can improve accuracy.

Granite platform face accuracy: grade 00 (planar tolerances 3 μ m)

Granite surface plate size: 400mmx250mmx70mm

Vertical height: 300-1mm

Lift return error: ¡ü wheel 1/6 turn