Spin top arena
thingiverse
Just a container for a double (or simple) concave lense of 100mm in diameter to make a top spin arena. I personally took this one: https://www.amazon.fr/gp/product/B077N8YTGG for 10€ very happy about it, and I can now beat records, without much practice, 12'30"... I intend to go for 15 to 18' with this setup.
Download Model from thingiverse
With this file you will be able to print Spin top arena with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Spin top arena.