I made the jigs as per Dom's plans and didn't think it was all that much
trouble. It is certainly worth it to get a nicely squared up bike.
My problem was the wood catching fire when brazing. I was able to
alleviate this to some extent by using pieces of thin plate as a heat
shield.
I have now built a universal jig from steel following some plans I saw
on the net.
I still use the wood jigs for holding the frames for drilling.
I don't know if selling jigs would be viable. Cost of freight etc could
quickly add to cost.
John Lewis
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