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Really interesting, thanks. I haven't used Rhino since I had access via an old job. Might be able to get it through my University...
I'm saying this as an engineer who is shortly going to take a framebuilding class. I've previously figured out my geometry with the free version of bikecad. However it would be interesting to take this a bit further.By the by, I thought I remembered seeing similar pre-production renders (or actually hand-drawn art) by Tomii Cycles, but I'm struggling to find an example now so perhaps I misremembered.
Love answering stuff. No worries.
CAD modelling and rendering is a part of my process. Aesthetics are important to me and I feel I can guage the outcome much better being able to view my work as a visualisation render before committing to anything.
I also expect this will be my thing compared to other framebuilders. Customer will get a pretty precise idea of what they are getting.
Wheels are off Grab CAD website but everything else I draw up in Rhino. Dropouts and stuff for CNC machining I model in Fusion 360.
All tubes are drawn up based on Columbus and Reynolds drawings if they are special (s bend stays for example) or I need to check clearances. So that top tube for example is a Columbus Max modelled after a drawing.
I draw tubes up uncut and have an archive of modelled tubes so it's easy to make a bike design by importing tubes and placing according to geometry line drawing