17mm to 1 inch Angled Ball Swivel Adapter Arm

Please also check out “ OctaJoint Modular Ball-to-Ball Extension Arm ” for a highly customizable model that lets you choose different size ball ends as well as the length, angle, and offset of the connecting arm.

This is a 17 mm ball to 1 inch ball extension arm/adapter designed to work with ball and socket mounting parts, commonly used with swivel-mount holders for phones, gps units, and other accessories.  RAM-branded mounts, in particular, seem to use the 1 inch size.  Garmin devices often use 17mm ball and socket components.

The arm is angled to allow more horizontal positioning.  The part is printed upright, with its arm sections at angles to reduce horizontal layer lines and increase strength.  There is also some internal structure intended to strengthen the part.  It seems quite strong when printed with PETG.  Because it is used with a swivel connection that is by its nature not completely rigid, it would be hard to put enough torsional force on this part to break it normal use.

See my   Vehicle Mounting Parts Collection for additional related components.

In my limited testing of PETG and PCTG filaments, Bambu Lab PETG HF has produced parts with the most uniform clamping and the smoothest swivel movement in this application.

I haven't needed supports in my testing, on a smooth PEI heated plate.