How to be an Armoured Farmer, building Hobart's Funnies in Glorious 15mm (and maybe 28mm if they arrive in time!)
AVRE Bobbin Conversion Cont'd
I used a fabric craft compass to cut out the circles. I ensured that I only applied light pressure (or the diameter would change) and kept the cut in the same direction. I did at least ten rotations and then ten more from the other side, using the centre point as a reference
Cut out discs from 0.5mm styrene card
Close up. I also marked the inner circle to be able to align the roll centrally to the discs.
I then sanded each disc round and drilled out the centre hole progressively from 0.5mm to 1mm diameter.
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