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Big Bag Badges: sew-on hi-vis badges for cycling/running

Step 2Choose a design and mark out

Choose a design and mark out
Choose a design from the layout sheet, and print out at full size if possible. Generally the reflective strips on a hi-vis vest are 45mm wide, and the layouts have assumed this. Check yours are the same, and scale the layout sheet up or down accordingly. 

Marking out is the trickiest bit, as one has to assess how best to cut up the vest. There's no real formula for this, I try to make use of the mesh and reflective strip as it is such that the minimum number of cuts and joins are required. Work out the best strategy on the paper by drawing on lines for the joins. You will want to add on 10mm around all the edges to allow for seams. Measure the dimensions, add on your 10mm and mark out on the vest using a pen/chalk and a ruler and square.
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Author:royshearer
I am a freelance design engineer and drummer. My business site is at http://www.zero-waste.co.uk and is often concerned with appropriate technologies, open source design and design for sustainability.