Challenges?

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thomas-neemann
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Re: Challenges?

Post by thomas-neemann »

here is a start file in sketcher if anyone wants to work with it
Bildschirmfoto_2022-09-26_12-01-42.png
Bildschirmfoto_2022-09-26_12-01-42.png (42.22 KiB) Viewed 840 times
start26sep-sketcher.FCStd
(5.28 KiB) Downloaded 23 times
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mfro
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Re: Challenges?

Post by mfro »

I would convert the Spiral into a Sketch which will produce a B-Spline curve in Sketcher.

Then insert a B-Spline knot at the position you want to have the tangent and create a point at this knot (using a point on point constraint). Draw a construction circle through that point (with the center point at the center point of the spiral) and create a tangent line through that point with the circle.
Cheers,
Markus
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adrianinsaval
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Re: Challenges?

Post by adrianinsaval »

why get complicated?
spiralTangent.FCStd
(6.94 KiB) Downloaded 29 times
should be toponaming safe because the spiral has only one edge, don't know if there can be issues by increasing the number of turns too much.
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Re: Challenges?

Post by thomas-neemann »

mfro wrote: Mon Sep 26, 2022 12:00 pm ...
thanks for the cooperation. will try to understand.




here is my suggestion in sketcher
1441tn.FCStd
(6.23 KiB) Downloaded 25 times
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Re: Challenges?

Post by thomas-neemann »

adrianinsaval wrote: Mon Sep 26, 2022 12:12 pm ...
it should e.g. this spring coming out.

Bildschirmfoto_2022-09-26_14-31-29.png
Bildschirmfoto_2022-09-26_14-31-29.png (57.74 KiB) Viewed 767 times
this start and end point of the tangent are specified

1.png
1.png (4.5 KiB) Viewed 767 times
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adrianinsaval
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Re: Challenges?

Post by adrianinsaval »

thomas-neemann wrote: Mon Sep 26, 2022 12:45 pm here is my suggestion in sketcher

1441tn.FCStd
what's the point of the construction circle?
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Re: Challenges?

Post by adrianinsaval »

thomas-neemann wrote: Mon Sep 26, 2022 12:48 pm this start and end point of the tangent are specified
you should provide this kind of requirement when you make the challenge not after the fact, incomplete information cannot be guessed. What are the requirements? dimensions? some angle? without more data I can only make an arbitrary spiral with an arbitrary tangent line, which I already did.
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Re: Challenges?

Post by thomas-neemann »

adrianinsaval wrote: Mon Sep 26, 2022 12:56 pm ..
i'm making a video with the sketcher. the other video above shows it with draft
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Re: Challenges?

Post by thomas-neemann »

adrianinsaval wrote: Mon Sep 26, 2022 12:56 pm ..
here is the video

https://www.youtube.com/watch?v=iRNAoSFFjUk

phpBB [video]
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thomas-neemann
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Re: Challenges?

Post by thomas-neemann »

extension of the challenge: to create this spring


Bildschirmfoto_2022-09-26_17-47-57.png
Bildschirmfoto_2022-09-26_17-47-57.png (8.8 KiB) Viewed 661 times


Bildschirmfoto_2022-09-26_17-42-11.png
Bildschirmfoto_2022-09-26_17-42-11.png (41.37 KiB) Viewed 661 times

from the start file

start26sep.FCStd
(5.9 KiB) Downloaded 29 times
or

start26sep-sketcher.FCStd
(5.28 KiB) Downloaded 24 times
as precisely and quickly as possible with a variant that is twice as large



here is my suggestion

variante-doppelte-groesse.FCStd
(24.54 KiB) Downloaded 28 times


edit video


https://www.youtube.com/watch?v=8BXV18NcjmU

phpBB [video]
Gruß Dipl.-Ing. (FH) Thomas Neemann

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