About three years ago John McClenahan and I produced this twisted bar. That’s the one on the left.
I needed to redraw it recently at a thicker gauge but forgot how we did the original one. I then found a video by Justin Geis on producing a twisted bar that involves rotating copies of blocks progressively for 90 degrees. That’s the second drawing - on the right.
What is clear is that the first one lacks the clear visible step at the start of the twist as it should. The twist itself is fine; but the progression from the flat into the twist is wrong. Neither John nor I can figure out how we did the original, which has a very smooth, flowing arc. I hope that explains what I mean adequately. What I do know is that the first one we did - the one I want to reproduce but can’t - was done with native tools and no extensions (as was the second).
Any help and advice on where I’m going wrong et would be much appreciated.
Many thanks for your suggestion. I did actually do that originally and it’s the beginning of the twist from the vertical flat that prompted me to post this on the forum, for that is what creates this distinctive, visible step. Creating it as suggested by Mihai.s by Fredo Spline and using one of the options ‘Junction by orthogonal Bézier curves’ eliminates that step.
I’m grateful to you and all others for taking the time to respond to my questions.
