Easy Motorcycle Windshield




Introduction: Easy Motorcycle Windshield

I am the proud owner of a magnificent motorbike, an honda rebel :)  and a spare polycarbonte sheet, so I decided to make a windshield. I think polycarbonate is the only safe material for a windshield.

Soy el orgulloso propietario de una magnifica moto, una honda rebel :) y una lamina de policarbonato de sobra, asi que decidí hacerme un parabrisas. Creo que el policarbonato es el unico material seguro para un parabrisas.

Step 1: Testing With Carboard Windshield

Before start cutting I made the tests using cardboard.

Antes de empezar a cortar hice las pruebas con cartón.

Step 2: Polycarbonate Sheet.

The main component.

El componente principal.

Step 3: The Windshield Cut.

This is the definitive cut and some washers and nuts used to install it.

El corte definitvo y algunas arandelas y tuercas que usé para instalarlo.

Step 4: Handlebars Attachment.

To attach the windshield to the handlebars I used four plumbing clamps and four  threaded bars. These lower bars should be perpendicular to the forks, anyway test and trial is the way to adjust it.

Para sujetar el parabrisas al manillar usé cuatro abrazaderas de fontanería y cuatro varillas roscadas. Las varillas roscadas de abajo deberían ser perpendiculares a las horquillas, de cualquier modo solo el ensayo y las pruebas te dan el modo de ajustarlo.

Step 5: Fastening the Windshield.

I made the holes in the cardboard and after that I marked them in the real one.The holes in the windscreen slightly larger, 7mm, than the threaded rods diameter 6mm.

The windscreen is fastened by the pressure exerted by the nuts on the washers on both sides.

Hice los agujeros en el cartón y después los marqué en el de verdad.Los agujeros en el parabrisas son ligeramente mas largos 7mm, que los de la varilla roscada 6mm.

El parabrisas esta amarrado por la presión ejercida por las tuercas en las arandelas sobre ambos lados.

Step 6: Finished

Well not at all because the film which cover the windshield is almost is very difficult to peel.

A final touch, the windscreen is tied between the lower ends with a spring behind the headlight, this adds stability, less vibrations and gives the windscreen a rounder shape, more aerodynamic I hope.

Bueno no del todo porque el film que lo cubre es casi imposible de pelar.
Un toque final, el parabrisas esta amarrado de los extremos inferiores con un muelle entre ellos,por detrás del foco, es añade estabilidad, menos vibraciones y le da una forma mas redondeada, mas aerodinámica, espero.

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    9 years ago on Introduction

    Nice project.
    Beware that not all clear plastic sheets, that are sold as Polycarbonate plastic, have the same characteristics. (Also note that sometimes Poly-methyl-methacrylate (PMMA or Plexiglas) is mistakenly sold as Polycarbonate.) Some scratch easily, some break or crack easily, some become foggy/misty or form air bubbles on the inside when heated. You're probably safe, but mention these things to the seller when you buy.
    The reason that most original equipment windshields are so expensive is that they use high quality Polycarbonate. For my own projects I prefer the Lexan (tm) type, made by General Electrics, but it is really expensive in thicker sheets.



    Reply 9 years ago on Introduction

    Thanks Andsetinn.

    The material used in this windshield is 5mm Polycarbonate.

    I tried to bend a small piece in the workbench with a hammer, and was almost impossible. So I think, I'll be good.


    9 years ago on Step 6

    Placing rubber washers between the metal washers and the windshield will help relieve wind stress and help prevent premature cracking of the plastic.


    10 years ago on Step 6

    Good idea and a real $ saver.
    I did mine by starting with my original windshield and adding cardboard "wings" until I had the shape and wind deflection that I wanted. Then I found it in plastic
    You can get a curved shape by warming the plastic in an oven, then shaping it gently over a pillow, holding it until it cools.


    Reply 10 years ago on Step 6

    Indeed, I haven't published all the improvements I have done with the windshields, I've found that a smaller, more tilted more curved windshiled
    works better specially for gas savings.
    I use my knitchen's oven to warm the polycarbonate.


    10 years ago on Introduction

    Muy buen trabajo, bahi.

    Yo tuve en una motoneta Iso 150 cc un parabrisas como este, pero de acrílico, hace como 40 años. Para mantenerlo cristalino le pasaba cada dos o tres días un trapito humedecido con vinagre blanco. Le da una transparencia mucho mejor que el agua sola.

    No sé si con el policarbonato será igual, pero podrías hacer la prueba con un trozo de los sobrantes.

    Very good job, bahi.

    I had an Iso 150 cc scooter with windshield like this, but acrylic, about 40 years ago. To keep it transparent, I used every two or three days a cloth dampened with white vinegar. It gives a transparency much better than water alone.

    I don't know if the polycarbonate is the same, but you could do the test with a piece of the leftovers.


    Reply 10 years ago on Introduction

    Gracias rimar, voy a probar tu consejo porque el agua de mi pueblo es muy dura.
    Thank you rimar, I'm going to check your advice because my village's water is very hard.