Wooden Bead Servo Solution

For some reason, after having done tens of polargraph drawings without it being a problem, the servo extension connector started snagging on the edges of the paper the machine was drawing on. Repeatedly. Messing up three drawings in a row.

 

My hasty but so far successful solution was to add a large wooden bead just above the connector. I sawed a slit so I could slide it on the cord.

Done