Buy parts in bulk

This ball spring plunger can be integrated into your existing 3D printable designs.

A negative part for the flange can be placed to cut out the hole where the plunger will be inserted.

Use this to add a clicky detent to sliding mechanism on your parts. Ideal for a retaining end stop or graduated slide.

Or, just add it to a rotating part to add the satisfying fidget bump.

This ball plunger requires a 4mm bearing ball and a 4x16mm compression spring (MX keyswitch compatible).

You can get these in bulk from my affiliate link or from Maker Supply below.

120g springs recommended for maximum click.