This is a camera matte box designed for vintage lenses. This specific model is designed for lenses using a 55mm step up ring. The orginal fusion file is attached below and is parametric so if you have different size lenses it can be easily adjusted. The model is a bit messy though /:

The project is moderatley advanced and requires hand tools such as a vise, hacksaw, hand file, and dremel to make all of the needed parts.

The models are desinged to be printed in resin. I used an ABS like resin for impact strength.

Needed Parts: -#4-40 x 1/4" Flat Head Screw = qty4 (These attach the carbon fiber flap to the hinge)

-#4-40 x 1/4" Socket Head Cap Screw = qty1 (This is used to tighten the hinge at the top to add more or less friction. There is a knurled thumb screw file included that presses onto the head of the cap screw)

-#4-40 x 1D Helicoil = qty5 (These need to be installed into the hinge and the hinge clamp. The threads for the helicoil are printed into the model)

-M5 x .7mm x 60mm Socket Head Cap Screw = qty1 ( This is used to loosen or tighten the lens clamp, for attaching and removing the matte box. See video for details. There is a printed knurl thumb screw that presses onto the head of the screw)

-5mmOD x 4mmID Tubing (This is used to create a shoulder on the M5 x .7mm socket head cap screw. See video for details)

-M5 x .7mm x 1D Helicoil = qty1 (This needs to be installed into the lens clamp ring for the M5 x 60mm socket head cap screw. The threads for the helicoil are printed into the model)

-4mmOD Solid Round Rod. This is the hinge pin. One side presses into the hinge body and the other is captured by the clamp on top of the main body. You will need 30mm length

-7mmOD x 4mmID x 2mmThick O-rings. 2 of these get inserted into the hinge clamp at the top of the main body. These add the necesary friction to hold the flap into position.

-1mm Carbon Fiber Sheet. This is the most challenging part to make. I used a bandsaw and a hand drill with a step bit installed. You could get away with using a dremel and a straight edge. I would recommend printing a template to make marking and cutting the part easier. Warning Carbon fiber dust is dangerous wear proper eye and lung protection.

Good Luck!