Enter the jig…

Started work today on a flat wooden jig that will hold the frame in place while I tack the joints and generally put it together.
I found an old cupboard door, which to my luck had 33mm holes drilled in it from where the hinges were. 33mm is the size of a bottom bracket ID, making it a perfect fit for the PVC tube which I’ll extend out to hold the BB in place.
I’ve drawn out the centrelines for the frame, to within 1-2% accuracy I’d say. I wonder how accurate I need to be?

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