BBQ Knob Insert

A mate of mine has a Masport Grande BBQ, and in the early hours of its expected service life, the inserts that form the interface between the knob and the spigot wore to the point where the knob would just spin on the spigot.

When printed on a well-calibrated machine, this insert will be a very good fit on the spigots of the Masport Grande BBQ (and likely other BBQs and similar taps). This replacement design makes use of a grub screw to assist in holding the insert on the spigot. An M3 grub