Here is a game that is both silly and educational. Silly because the only goal is to smash moles as quickly as possible, but also educational because it’s a kit you assemble yourself, helping younger players discover the mechanism found in click pens. The game is played with a free app.

Print settings :

All parts can be printed in PLA, except for the spring, which should be printed in PETG, and the mallet head, which should be printed in TPU.

For the PLA parts, if possible, avoid using matte PLA for the mechanism. Instead, use standard PLA or PETG, as they are less rough. Also, as shown in the images, it is preferable to reduce the layer height around the teeth to minimize friction.

Finally, to further improve the smooth rotation of the mechanism, you can use a lubricant. I rubbed an old candle over each tooth, and it works very well!