To build you need:
1x angle
1x slider
4x stop
2x threaded rod M5x20
2x screw M4x5
1x graphite 30-40 mm
Screw the M4x5 screw into the slider and insert the graphite.
Screw the angle and stops with a threaded rods M5x20.
Place the slider on the angle.
The author marked this model as their own original creation.