I had promised someone that I would show them how to make a "classic" style windsheild. Here are the results:
Materials:
1- 3/4" x 1/8" x 48" Alum bar
1- 3/4" x 1/8" x 36" Steel bar
1- 18" x 24" x .093" Lexan Polycarbonate Sheet
1- Chunk aluminum sheet scrap (.060 or thicker) ( I got mine from a sign shop)
4 - 1 1/2" hose clamp
4 - 1/4" x 20 x 3/4" countersunk bolt
9 - 1/4" x 20 x 3/4" pan head bolt
2 - 1/4" x 20 x 1 1/4" pan head bolt
4 - 1/4" x 20 x 1/2" hex bolt
19 - 1/4" x 20 Acorn Nut
19 - 1/4" Lock washer
19 - 1/4" Washer
I made paper templates for all the pieces that I would be needing. I used spray glue and tacked the templates to the materials for cutting/drilling. I used a band saw to cut all my aluminum and the Lexan, but most people would probably use a jig-saw.
When cutting the Lexan, go SLOW and take your time. Finish the edges using 220 grit sandpaper. Leave the protective covering on until you are nearly complete to avoid scratching it.
here are all the pieces cut and ready for drilling. Except for the Fork support mount everything was drilled 9/32". Fork support mount was drilled 7/32" and tapped 1/4" x 20 and one peice countersunk. I have included the patterns in PDF format so you can follow along and used/modify to suit you.
Brackets: print size is 11" x 14". (do not scale)
http://lonestargrafix.web.officelive...s/brackets.pdf
Windshield: print size 18" x 24" (do not scale, 6 letter sheets)
http://lonestargrafix.web.officelive...WINDSHEILD.pdf
Pieces cut and bending started. the bend is approximately 1 3/4" deep, with more of the bend at the ends. This type of bend makes the windshield more rigid. The bend at the bottom is primarily for strength, but it also deflects air differently, you may choose to leave it straight.
Mock-up attached to bike, ready to be disassembled and painted/cleaned/polished.
Here is the finished windshield:
Note that this particular design allows up/down adjustment of two inches and tilt adjustment of about 15°. you can adjust to best fit your needs.
A couple of detail shots.
if you have any questions, feel free to PM me or shoot me an email.