Cap for xTool P2/P2S accessory plug

People have reported issues with their xTool P2/P2S where the accessories will no longer connect. Some have attributed the problem to a buildup of soot, particles, smoke, tar, etc. on the exposed pins of the accessory connector inside the laser cutter. Videos have been posted explaining how to clean the port, but why not just prevent the problem in the first place? This simple cap prevents the accumulation of contaminants by screwing onto the interior accessory port. It also works on the exterior port, of course.

Print with 0.2mm layers or less to ensure the threads are accurate. 

The cap is just a bit larger than otherwise required to allow you to get a better grip on it.