Micro Marblerun

Micro Marblerun - a minimalist marble machine with screw lift. The two parts are designed to snap together. Use with 8 mm steel balls.

Serves as a nice little gift or addictive toy for your desk.

Youtube demo: https://youtu.be/j0E56CbSJo4
Installing the screw lift: https://youtu.be/i-PeAw9IH5Y

Print at 118% to fit a 9.5mm (3/8") ball bearing - thanks to V4HE for mentioning this in his make.

Print instructions

Category: Mechanical Toys Summary

Micro Marblerun - a minimalist marble machine with screw lift. The two parts are designed to snap together. Use with 8 mm steel balls.

Serves as a nice little gift or addictive toy for your desk.

Youtube demo: https://youtu.be/j0E56CbSJo4
Installing the screw lift: https://youtu.be/i-PeAw9IH5Y

Print at 118% to fit a 9.5mm (3/8") ball bearing - thanks to V4HE for mentioning this in his make.

Print Settings

Printer Brand:

RepRap

Printer:

No

Supports:

0.3 mm

Infill:

Notes:

No specific print settings needed, I have used these for example:

• 0.3 mm layer height with 0.5 mm hotend
• 3 shells (2 should be plenty enough)
• 25% hexagonal infill
• 2 solid bottom layers, 2 solid top layers

• Seam position aligned

  Post-Printing

  Clean the inside of the tower, the entrance/exit as well as the contact surfaces between the two parts. Make sure the bottom of the screw is flat. Test if the ball can enter the tower without resistance. Do this before installing the lift screw, it is difficult to remove once snapped into place.

  Video