Step 3Cut card to shape
Position the small blade you just snapped over your design to ensure that you have enough room on the card. I recommend maybe going a little larger than you need as sanding the plastic is easy, the metal not so much.
Once you are satisfied with your design cut the card into two blanks, mine measure 2cm x 5.3cm (0.8" x 2") each. Use your hobby knife to carefully rough out the inner channel, this channel is what will guide the seat belt to the blade.
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