This model comes in two sizes:

• Regular: ~16 cm wingspan
• Extra Large: ~26 cm wingspan

It is designed for easy printing with no supports required - intended to fit through a 30mm hole but I have managed smaller too.

Features

• 3.5 mm screw holes provide a good fit for most wood screws.
• No extra hardware needed — the hinges use ~50 mm of scrap 1.75 mm filament as hinge pins.
• Folds compactly to fit through tight openings.
• Includes a breakaway alignment rod to keep it in place while you drive your screws.

Uses

Ideal for mounting fixtures that screw into plasterboard, drywall, or other sheet materials, including:

• Surface-mount electrical boxes
• Pendant fittings
• Wall and ceiling lights
• And many similar fixtures