Windscreens. Not a straight forward subject, and one that I have had many questions on during the project development. So I thought I would add a selection of photos and CAD images, that show the windscreen development. from the initial scan of the bodyshell.

  • First step was to build a wood frame to support the bodyshell and then apply around 2000 reflective dots in preparation to have the shell scanned.
  • Then I had to develop a surface model of front bodyshell, before I was able to set-up the first screen surface model.
  • From this initial screen model, I unwrapped the single curvature surface and then produced a drawing. Then printed this full size x2, taped together and laid into the screen aperture.
  • Once happy that this was fitting, I developed a CAD model of a wood plug with 2mm thick acrylic sheet.
  • Then we built the plug, which can be seen sitting in the shell. The CAD models shows the revised buck with 5 supports to get an improved fit, whereas the photos show the first buck with 3 supports.
  • In parallel to developing the screen CAD and plug, I also developed the screen / bodyshell support hoop.
  • This required another jig, so that we could get the hoop tubes bent to ensure they were correct to my CAD models and fitted the shell. This jig also positioned the screen / bodyshell hoop onto the chassis in the design position. And allowed me to make some tweaks to the hoop to get a good fit to the shell.
  • I was very lucky to get an unwrap of an original 917 screen, and this allowed me to compare to my developed surfaces. And I was extremely happy to almost perfectly match the original, only being 2 to 3mm out in one local area. This I felt was conclusive proof that the shell I had purchased (which was advertised as a splash from an original) was indeed a splash from an original car.
  • Regards screen manufacture, I have found a company in the UK who will manufacture tools from my CAD models, and supply me 5mm laminated glass screens with BS markings which will be legal for the road.

And can even have them heated, to save having to install a defrost system. But not cheap!

Windscreen Development

  • Windsceen Development (1)
  • Windsceen Development (10)
  • Windsceen Development (11)
  • Windsceen Development (12)
  • Windsceen Development (13)
  • Windsceen Development (14)

  • Windsceen Development (15)
  • Windsceen Development (16)
  • Windsceen Development (17)
  • Windsceen Development (2)
  • Windsceen Development (3)
  • Windsceen Development (4)

  • Windsceen Development (5)
  • Windsceen Development (6)
  • Windsceen Development (7)
  • Windsceen Development (8)
  • Windsceen Development (9)

917 Sub Sections

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From the Galleries

  • 150923-body on chassis 1
  • White 9
  • 150611-transparent body and chassis 3

  • Rolling chassis 3
  • Rolling chassis 2
  • Rolling chassis with me for website