uStepper Linear Actuator

My linear actuator design in two versions - Acme screw and regular M8. To see more about it and also videos have a look either on Instructables:
https://www.instructables.com/id/Linear-Actuator-V2/

Git:
https://github.com/uStepper/Linear_Actuator

or:
https://ustepper.com/store/kits/43-80-ustepper-linear-actuator.html#/44-linear_actuator_style-m8_lead_screw/46-kit_type-complete_kit

Videos of both in action also available here:
https://youtu.be/wa8sdel2Xgg
https://youtu.be/sgkufqm8x9g