0.1mm (for screw parts) rest 0.15mm
When printing the lead screw segments. be sure to blow plenty of air to set the rising screw quickly... print slow and easy.
Building it up
The actuator needs 4x M3 screw rods as the main support column.
The actuator needs also 3x5.5mm carbon fibre / or equivalent slider rods that connect to the end effector.
The actuator also requires 2x 608 skate bearings
Body shell support screw
Carbon slide rods
Generic 608 skate bearings
Walkthrough and testing of the Actuator... with 1.5Kg dead weaight test
The Web Gui courtesy of ESP32