Marble Castle XXL

This CAD model was designed by Oskar van Deventer, copyright (c) 14 September 2025.

Marble Castle XXL is a 3D-printed marble track. It is bigger variation of the original Marble Castle. The 10-mm ball runs from the top center all the way down to the front gate in over 60 seconds. The design has several castle-like features: a big tower in the middle, walls around, four corner lookouts, two court yards, a front gate, a back gate, a balcony and a church. One feature is the question-mark shape at the top. This is a tribute to Adrian Fisher, who has included a question mark in several of his maze designs.

This puzzle was 3D-printed by Ivan Danik (a.k.a Puzzle Guy), using 3138 gram of marble filament. It took 95 hours and 11 minutes to 3D-print, which is almost four full days.

Here are some links about this design.
https://www.youtube.com/watch?v=9ipSgh0OwfI

Feel free to 3D-print an extra sample to give to a friend, as long as you mention the designer and don't charge money.

If you are planning to sell some samples, then please contact me for a license agreement. The royalty fee is 10% of your selling price.

Please do not upload the design to a commercial service, or redistribute the design in any way other than linking to the YouTube video: https://www.youtube.com/watch?v=9ipSgh0OwfI

Enjoy!

Oskar
10 Oktober 2025

Contact: 
https://oskarvandeventer.nl/index_contact.php?subject=Print%20It%20Yourself


