Building of Mini Kossel 3D Printer – 6

Base assembly is done. 😉

Parts:
NEMA17 Stepper Motor x1
GT2 Aluminium 16 Teeth Pulley x1
Set Screw x2: come with the Pulley kit
Base vertex frame for 2020 Aluminium extrusion x1
Homemade vibration damper x1
M3x10 cap screw x4

Tools:
1.5 mm Allen wrench
2.5 mm Allen wrench
Square file
Round file
Engineering square

Small square file, round file, 2.5 mm Allen wrench, M3x10 cap screw

Rubber vibration damper (option):
1 mm thickness of rubber plate – 300 mm x 300 mm at 5,000 KRW
1 mm thickness of paper
Pencil
Compass
Straight
Scissor
Utility knife

GT2 Aluminium 16 Teeth Pulley, two set crews, 1.5 mm allen wrench

Align the Pulley and the motor shaft using an engineering square

I filed the vertex frame thoroughly where the motor and the aluminum extrusions are mounted. Also I cleaned up the screw holes of motor mount which takes M3 cap screw using a small round file. In two occasions I had experienced stuck M3 cap screw which wouldn’t turn after few millimeters in.

Checking the vibration damper

Checking M3 mounting holes of the motor

Checking alignment of vibration damper and the motor

Put four M3x10 cap screws and one vibration damper on the vertex frame

This was the easiest way to mount the motor on the vertex frame.
Stand the motor up on flat surface, then put the vertex frame on top of it.
Hand tight the four M3 cap screws using combination of thumb, index and middle fingers of both hands until the the screws won’t turn.
And then tighten the screws one by one using 2.5 mm Allen wrench.