We will show you how to bend a recycled plastic sheet from the sheet press without heat or mold.
This technique is inspired by a woodworking technique called ‘kerfing’. Kerfing is a wood bending method done without water or steam.
Here’s what you need:
The HDPE plastic board that you’re going to bend:
30 cm x 10,5 cm, 5 mm (thickness)
9,5 cm, 5 mm (thickness)
A portable sanding machine
A soldering iron
A table saw
First, we’re using the table saw to score the plastic. Cut 3 mm in depth while keeping a 5 mm distance between each cut. Make sure you’re scoring the board perpendicular to the direction of the bend.
Thin out the end sides of the plastic board using a portable sanding machine so that the sides will fit better in the next step.
Now bend it carefully! Use a rope to tighten it in place.
With the help of a soldering iron, weld the end pieces of plastic together. Make sure you do it well.
Now back to the sanding machine again. Smooth out the welded part to get that nice and evenly joint.
And voilà! Your beautiful, eco-friendly lampshade is done.