Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

The 3D Printed Marble Machine by Maher Soft

by Mahersoft, published

The 3D Printed Marble Machine by Maher Soft by Mahersoft Nov 21, 2016

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2198Views 1025Downloads Found in Mechanical Toys


This is a 3D Printed marble machine on our latest Indie 3D Printer that takes marbles through crazy loops and turns. A marble machine designed in ONSHAPE is completely based on rigid bodies, rigid body joints and mechanics. The assembly has approximately 34 parts printed in ABS , and it can be powered by using DC motors or batteries. It uses a 1.5 cm diameter steel marble, which starts at the bottom, and goes to the top, and then returns to the bottom, making this trip about 8640 times in 24 hours.

Indie on Indiegogo - https://youtu.be/e9V8IUPSevg

Marble Machine Video -

Sign up now to buy Indie on Indiegogo at $549 - http://www.mahersoft.com/indie
(Only for Early Bird Backers)
The new 3D printed marble machine we have all been waiting for!

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Website - www.mahersoft.com
Contact - [email protected]

Made one yourself? Feel free to upload your photos
Inspiraion: Daniel Parker

Print Settings


Indie: The Desktop 3D Printer


Doesn't Matter




200 micron




We have attached the instruction document along with spare list and drawing for rod. Please refer the documentation.
Some parts might not fit on a small print bed, we recommend you to cut the file in 2 parts and glue later.
15- 25% Infill worked best for me.
0.2 mm layer height.
Try out the best settings for yourself.
Steel ball bearings


Printed on Indie 3D Printer

How I Designed This


At first glance, it may look relatively simple, but a lot of planning and tweaking had to go into the design process keeping in mind that all parts have to be 3D Printed and support free to avoid any kind of post processing. It took us approximately 2-3 weeks to design the assembly on Onshape and a series of iterations to make a working model of the marble machine.

The whole assembly consists of 34 3D Printed parts, nuts, screws, and a DC motor to provide a rotary mechanism.
The marble starts at the bottom, and goes to the top, and then returns to the bottom, making this trip about 8640 times in 24 hours. Each step lifts the marble back up to the top of the slide in a synchronous manner. Here, the entire process starts all over again and continues so long as you keep turning the CAM shaft.


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Hi Penged,
Please check here for more info on motor.

12V DC Motor

Motor Specs -
PM33 Gear Motor (Offside)

Shaft Diameter – 6mm (with internal hole)
Weight - 150gms approx
Torque – 3 kgcm to 15 kgcm (depending on RPM)
Voltage – 6 to 24 (Nominal Voltage – 12v)
No-load current = 60 mA(Max), Load current = 300 mA(Max)
RPM (at 12v): 60

Please do let me know if you have any issues.
We will also update a little smaller version of this soon.
If you are a 3D Printer user - you would want to check out our upcoming Indie: The Desktop 3D Printer on www.mahersoft.com/indie which will be launched on Indiegogo at $549 only.

This looks very interesting. Can you give any more information about the motor?