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3-point arc in 3D

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11 commentaires

  • Jacant

    There may be other ways.

    Create your square and arc on the XY plane.

    Pull the 'Arc' up 300mm

    Select line tool it will want you to create a sketch plane. Ignore. Select 3D mode and draw line from top of curve to bottom of curve opposite.

    Select line . Create Plane. Move plane 90°

    Use plane to Cut surface. Select top of curve. Copy and Paste.

    Most drawing tools can be used in 3D Mode.

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  • Milan

    Dear Jacant, thank you for your reply! It is so good when I can learn from experienced user!

    Do you think curve which is result of this operation, can be measured?

    I made example of such measurement here: https://www.geogebra.org/3d/dc5qhwda

    Thanks again!

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  • Milan

    Sorry for stupid question! I need to learn how to use drawing planes, that's all... Thanks again!

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  • Jacant

    I would watch all of the video tutorials.

    https://designspark.zendesk.com/hc/en-us/sections/202625729-Video-Tutorials 

    The sizes shown are for a 97mm square with a height of 30mm

    There is now a 'Function' tool where you can input 'Equations'

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  • Jacant

    I have just noticed that the curve shows as an 'Ellipse' in the structure tree.

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  • Milan

    Dear friend, thank you so much! I will watch all tutorials, I promise :)

    I always want to play with a new toy not knowing anything... because it looks so intuitive. And then I get stuck...

    So good that you show me these tricks for free! Thanks again!

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  • Tim Heeney

    Hi Milan.

    Another way is to make a plane through the 3 points.

    Make 97 by 97 sq ( sorry , i used mm not cm's )

    Create 3 points in the corners.

    Key D ( for 3D mode)

    Moved two points up 30 and 15 ( copying to illustrate )

    Created a Plane by 3 Points ( use the building plane tool for feedback :), select 3 points, then click the dotted rectangle plane to confirm/ make the plane )

    Key K ( for plane ), select the plane, select Sweep Arc tool, start at center.

     

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  • Milan

    Dear TIm, thanks for showing me another way! I already feel like a part of amazing community, how nice!

    This program is a real discovery for me! Looking forward to getting my hands dirty with DMS :)
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  • Milan

    After trying both methods, I must admit, that Tim's method for me was more simple.

    It also gives exactly same result as Circular Arc in geogebra (https://www.geogebra.org/3d/cy3j7vf8)

    In the first method I couldn't figure out how to do this part "Select line tool it will want you to create a sketch plane. Ignore."

    So on the end I would also create some more auxiliary planes.

    Thank you friends for this help on entering amazing world of DSM ! Best regards!

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  • Jacant

    ...In the first method I couldn't figure out how to do this part "Select line tool it will want you to create a sketch plane. Ignore."...

    When you select all of the 'Sketch Draw tools' the program wants you to select a 'Sketch plane' to use.  If you 'ignore' this and select the 3D mode icon to keep it in 3D mode, you can draw in 3D space, using some of the tools. So long as you have something to 'attach' to. You can not draw in a void.

    In V5 'Constraint based sketching' there is an option to 'Enable 3D Sketch'

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  • Milan

    A-ha! That explains all! Thank you for additional explanation, Jacant! I did not enable 'Constraint based sketching' in preferences, that's why I couldnt do it. Now I enabled 'Constraint based sketching' and everything works like a charm!

    I don't think I will do something important with this, but hey, I drew a bathroom and a railing for the stairs (curved), which I am currently working on. In real CAD, for FREE! For me this is from zero to hero in two days :)

    And like a cherry on top of a cake I found a great community! Life is good! Thanks again for both of you!

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