How do you create a flat pattern of a helical screw flight

Terrence_Tarboton

Can a flat pattern be made of a helical screw flight?

philip_thomas

Out of box - nope!
But I know a man that might know how . . . @konstantin_shiriazdanov, what do you think?

john_mcclary

We did an experiment with a 180deg helix, worked with paper, but we didn't have the tooling to bend a full scale 14ga sheet.

I'm not sure if it would work in the end, but you can have my resulting document.
https://cad.onshape.com/documents/d46436b3be6cddce38b9184b/w/47a4090676b620c1ce23fdf0/e/5f1061b17dca506c12d80d4d

konstantin_shiriazdanov

Helix is also non developable but I would did what @john_mcclary showed, assuming helical bounds transform into concentric circles of the corresponding length and linear edges transform into radial lines on the flat. It should work well untill the width of the helix is significantly smaller then the length.

Terrence_Tarboton

Thanks everyone, bit more complex than I was hoping.