Opdracht Sleutelhanger

• Natuur, Leven en Technologie
• Middelbare school
• vwo
• Leerjaar 1

Keychain

The assignment

You are going to design and make your own personal key chain out of a coloured piece of plastic.

Step 1

• Draw 6 boxes of 50x70mm on one sheet of paper. Use a ruler to make sure your lines are straight.
• Draw 6 different designs; one in each box. Make sure you fill up the boxes as much as possible.

Step 2

• Colour in the part which is considered as rest-material, your actual design remains white.

Step 3

• Saw your piece of plastic (50x70mm), by hand or with the electric jigsaw.
• Copy your best design on the white foil layer of your piece of plastic whith a pen.

                      Do not remove the plastic foil layers!!

Step 4

• Saw your shape by hand. Use the correct saw blades.
  

 

There are saw blades specially designed to saw plastic. These blades are very thin and protect the plastic from melting.

Step 5

• File your design to remove splinters. Use the correct file and a bench vice or machine clamp to hold your piece.
• Scour your piece to finish it off. Make sure all the edges are smooth and round.
  Use the sandpaper in the correct order : 120, 240, 400.

Step 6

• Drill the hole for the key ring. Use a drill bit with ᴓ6 (mm).
  
• Put the key ring through.

Step 7

• Polish the edges of the plastic. Make them shine!!
• Ask your teacher to check your piece: DONE?... Remove the foil layers on both sides of the plastic.
• Option: you may engrave a text or drawing. Ask you rteacher about it.

Criteria

• A good, strong and original design.    The more more you challenge yourself the higher you may be graded when successful.
• Well filed, scoured and polished.
• Neatness.