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Re: Just for fun - QCAD drawing challenge !!!
Posted: Wed Apr 29, 2020 5:37 am
by CVH
Husky wrote: ↑Tue Apr 09, 2019 9:05 pm
Hi guys - somebody here who can untangle my brain ......
I need a accurat solution and I'm more in a guessing mode than in a knowing mode.
Continued @ QCAD 'How Do I' Questions:
https://qcad.org/rsforum/viewtopic.php?f=32&t=7185
Re: Just for fun - QCAD drawing challenge !!!
Posted: Sun May 14, 2023 3:13 pm
by prentin
Husky wrote: ↑Tue Apr 09, 2019 9:52 pm
@lphilpot
Thank you for the try - but that isn't accurate enough.
@Andrew
Seriously? That easy? My brain was boiling and I haven't seen the obvious thing to do. THANK you!
Mathematical the corract answer is:
R= r* ˙[1/sin( alpha) -1]
where alpha = 180/n