UK double gang spacer

This spacer offsets a switch or socket faceplate from the wall.

The depth of the spacer is intended to be set using the cut tool in the slicer. This is why the model is much deeper than in the picture.

The screw hole size can be enlarged after printing by snapping off reducer plates. Sometimes the screws that hold the faceplate can't be changed, for instance with some modular “grid” switches where the screws are captive in a steel frame. If the original screws aren't long enough to reach the backbox through the spacer, screw extension studs can be used, but these need bigger holes in the spacer. Snapping off the plates reveals a larger hexagonal hole that fits over the studs.

Breakaway parts are done with the 0.15mm gap between layers that produces a weak joint similar to breakaway supports. This was tested with PETG and a 0.2mm layer height. If prompted, import the model into the slicer as a single object with multiple parts, and ignore print stability warnings caused by the gap.

• Screw holes can fit over screw extension studs
• Increased wall thickness for stiffness
• Much deeper so it can be cut to required depth in the slicer