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Creating Laminating Base - V1 - Wood Support

Legacy

25° wooden base with acrylic sheets for laminating carbon fin blades.

Goal

Create a rigid angled surface to support fin blades during lamination.

Specifications / Dimensions

Dimensions

  • Long Side (Flat):
    • Minimum width: 25cm (to accommodate 20cm blade width and additional room).
    • Minimum length: 30cm (to fit a 25cm blade length and additional room).
  • Angled Side (23°–25° Incline):
    • Angle: 23 degrees (or 25° based on matching geometry).
    • Minimum width: 25cm (to match blade width).
    • Minimum length: 20cm (to fit 15cm blade length and extra space).

Reference Images

Support Structure Brackets and Side
Full Support Structure Brackets and Side Supports

Time needed

Type Hours
Implementation 1 h
Waiting 0 h

Bill of Materials

Material Quantity Unit Cost Line Cost
Acrylic sheet (A3)
Reusable 3 mm clear sheet cut to 420 × 297 mm
1 1 sheet A3 sheet (2 mm) £10.00 per 1 sheet A3 sheet (2 mm) £10.00
Acrylic sheet (A4)
Reusable 2 mm clear sheet cut to 210 x 297 mm
1 1 sheet A4 sheet (2 mm) £5.50 per 1 sheet A4 sheet (2 mm) £5.50
Softwood board offcuts
Reusable 1 cm thick timber for base and angled supports
1 set £5.00 £5.00
Angle brackets and screws
Reusable Two galvanised brackets with matching screws
1 set £4.20 £4.20
Double sided-tape
Consumable Thin acrylic tape to secure sheets to timber
1 roll Inexpensive
Total £24.70

Tools Required

Tool Purpose
Wood saw Cut the laminating base supports to length
Screwdriver Drive screws to secure brackets and maintain the angle
Tape measure Check dimensions and spacing during setup
Sandpaper Prepare and smooth surfaces for better adhesion and finish

Instructions (step-by-step)

  1. Base Construction

    • Use 1cm thick timber to create a solid base.
    • Cut wooden side supports to a 23°–25° angle to replicate blade geometry.
    • Secure side supports to the flat base using metal brackets for rigidity.
  2. Laminating Platform

    • Tape clear Acrylic Perspex sheets (A3 and A4 sizes) onto the wooden base using thin double-sided adhesive tape.
    • Ensure the surface is smooth and taut to properly press against the blade.

Data to Record / Results

  • Notes on surface flatness after cure
  • Any deformation or movement during lamination

Limitations

  • Does not scale well: In order to create bigger fins, the wooden structure needs to be re-worked.
  • Vacuum Bag Fit: Ensure the base with acrylic layers fits entirely into the vacuum bag.
  • Air Trapping Issue: The gap between the angled section and wooden supports bends the acrylic during vacuum bagging