How to make a visor for your Helmet


– 1’x2′ 1/32″ polycarbonate (obtained from local hardware/plastics store, don’t remove the white film)
– 1’x2′ auto tint (plastics store or auto bodyshop)
– 2 pieces of white printer paper
– spray bottle
– liquid soap (dishwashing detergent works well)
– tape
– scissors
– squeegee (stiff cardboard works well)
– adhesive backed velcro
– shaving cream
– paper towels
– blowdryer
– drill (or sharp screwdrivers)
– fine sandpaper
– pencil

– Tape the two pieces of paper together and wrap it around the face opening making sure to completely cover the opening snugly as well as the mounting holes on the side where the visor used to attach. Tape it down.
– Trace out the face opening and note where the mounting holes are. Then extend the face opening to the mounting holes, styling however you please. Also extend the bottom of face opening by about an inch (room for velcro).
– Cut out the shape you drew and trace in on the white film on top of the polycarbonate. Tape it down if it’s moving around too much. Cut it out with scissors.
– Cut out a rectangle of auto tint big enough to cover the faceshield you just cut out.
– In the spray bottle, mix some soap with water, and give it a good shake. The ratio is not that important.
– Remove the top white film (this is the outside of the faceshield) on the polycarbonate and give it a good spray all over with the soap water and make sure there are no particles on it.
– The tint is a thin film on top of a clear backing. To remove the film from the back, take two pieces of tape and stick it to each side of a corner. Peel the pieces of tape away from each other and the film should lift from the backing.
– Place the film adhesive side down onto the wet polycarbonate. Gently squeegee the water out from under it from the middle towards the outside. Fix any bumps, bubbles with the squeegee.
– Take the hairdryer and holding approximately 3″ from the faceshield, Go over it twice.
– Towel off the bottom of the faceshield and trim off excess tint from the faceshield.
– Sandpaper the edges down to make them smoother, be careful not to scratch the tint or faceshield surface.
– Using the original paper cutout, mark on the faceshield where mounting holes go with a pointy object.
– Using a drill or progressively larger screwdrivers, fashion a hole big enough for the mounting bolts. Remove back faceshield film.
– Affix the faceshield to the helmet. Upon closing, note where the faceshield overlaps the chin guard on the helmet.
– Cut out small 1″ to 2″ strips of velcro, peel off the backing and stick the soft side to the helmet. Peel the backing off the thorny side of the velcro, Velcro the thorny side to the soft side and close the faceshield firmly on the sticky side.
– Open the faceshield and trim off excess velcro.
– Remove faceshield and lay flat. Spread shaving cream on the inside of the faceshield then wipe off (this prevents the faceshield from fogging up).

–> Repeat steps as necessary using no tint of different tints.

*If you happen to want a faceshield and a visor, you can bolt the visor over the faceshield, but you can’t lift the faceshield up. Another possibility is to make 1/2″x1″ tabs spaced 2″ all around the face opening instead of extending the faceshield to the mounting holes. You can insert the tabs in between the helment and the padding for a non-flip-able faceshield.

I apologize for not having pictures of the process, but I don’t have access to a camera at the moment. I’ll try to get pictures if anyone has any questions.

How strong is Polycarbonate in layman’s terms?

Polycarbonate is used in many applications, such as “bullet proof” windows, and in other applications requiring great flexibility and strength. This material can be molded in opaque or clear material. In clear form it is an excellent material for optical lens manufacturing. Most safety glass lenses are today made from Polycarbonate, or varieties of this material such as Lexan (a General Electric trade mark).

How to bend a polycarbonate sheet?

Turn on your strip heater. A strip heater is a long thin heating element used to bend plastics like Lexan. The heater comes in various lengths, depending on the size of the sheets you want to work with. You can purchase a thermostat for the strip heater to control the heat output.

    The ideal temperature for polycarbonate is around 340 degrees Fahrenheit.

About janpenguin

Email: k2.mountain [at] gmail [dot] com Every content on the blog is made by Free and Open Source Software in GNU/Linux.
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