These archery blinders are designed for archers like me, who struggle with eye dominance or focusing on the target with both eyes open.

There are two variants using the same shield. Each variant can be clipped onto a baseball cap that.

Currently ther are no variations for different brim thicknesses. Please reach out if you require a different fit.

The files provided are for a blinder designed to cover the left eye. For covering your right eye just mirror the parts in your slicer.

Fixed Blinder

This blinder attaches to the side of the cap and offers limited adjustability. To remove the blinder in front of you eye, you mast detach the clip from the cap entierly. Which is not ideal.

It requires just two M3 screws.

Rotating Blinder

Unlike the fixed version, this blinder can be adjusted in a greater range and can be rotated/swiveled to move it out of your sight as needed. It rotates around a bolt between the dar blue and pink parts in the next image.

It requires four 4mm x 2mm round magnets and a couple of M3 screws and nuts. When assembling the Rotating Blinder make sure not to overtighten the rotating arm (pink) so it can rotate freely in the clamp (dark blue). 

Printing

PLA will do the job, I printed them with 0.16mm layer height and generic matte PLA. Infill can be anything from 15%-100% and does not affect the overall function and stability.

Assembly

Assembling the blinders is straightforward. Please refer to the provided images above to see how the parts should be placed.

You'll need M3x16 and a couple of M3x10s (ISO4762). For the nuts, use self securing nuts. If you don't have them laying around, grab yourself some M3 Bolt and Nut kit from any online shop.

For the Rotating Blinder use four 4mm x 2mm round magnets. The magnets are press fit, so the fit should be strong if your printer prints with a ‘normal’ tolerance. If the diameter of the holes are too small you may have a hard time pushing the magnets in, maybe you can use a small kitchen torch to heat up the holes. If the tolerance is too huge, just glue them in. The red arrows in the next image mark the spots where the magnets should go. Make sure you get the polarity of the magnets right.