I have a number of small brackets that I want to get drawn out by CAD for the Charger, an example of which is below. The plans only show the bent shape, and I assume the practice was to bend it, then work out the exact trimming necessary to give the proper shape.
Obviously if I'm going to draw these things out in CAD to hand off to the waterjet shop, I can't do that. The actual profile isn't super critical on this particular piece, and chances are excellent that it would have to be trimmed once it was bent anyway. I'm likely to make it a bit too long to allow for that trimming. It goes between two other brackets to form a wing root fitting.
Anyway, to my actual question: is there a clever formula or something to figure out how much length of material is taken up by the bend? Can I just call it 90 degrees of a 1/8" radius circumference (whatever that works out to be)?
Obviously if I'm going to draw these things out in CAD to hand off to the waterjet shop, I can't do that. The actual profile isn't super critical on this particular piece, and chances are excellent that it would have to be trimmed once it was bent anyway. I'm likely to make it a bit too long to allow for that trimming. It goes between two other brackets to form a wing root fitting.
Anyway, to my actual question: is there a clever formula or something to figure out how much length of material is taken up by the bend? Can I just call it 90 degrees of a 1/8" radius circumference (whatever that works out to be)?
