This is a two-part remix of Base and Alternative Turncap for Marble Machine 3. Both parts work well with Marble Machine #3 by Tulio.
My 4-year-old son had trouble remembering which direction to rotate the turncap, so I used Tinkercad to add an arrow indicating the turn direction. The arrow is on the bottom of the model when printed, so may not be visible on the image of the STL file.
For the base, I widened it and made it into a tray to hold the marbles. This has worked great!
We really enjoy the marble machine and with two kids (and their parents who like to play with it), we needed two. Thanks!
More of my models on Cults:
New Rainbow (New Splendid)
Also printed in MeltInk Neon Blue and MakerGear Purple.