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How to sketch a sin wave along a circle like this tool
alexandre_vallette
Member Posts: 5 PRO
hello,
i need to draw this tool but i have no idea how can i reproduce the inner part of this tool (see picture).
any advices would be welcomed.

thanks
i need to draw this tool but i have no idea how can i reproduce the inner part of this tool (see picture).
any advices would be welcomed.

thanks
Tagged:
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Best Answers
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you could make this with some curve scripts but you could also just use circle arcs
https://cad.onshape.com/documents/57f3ddd19d44f3c0031903a6/w/b499a2024fc0a55653bae772/e/db0b472b46edd36e57cf4f17
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Yes, from the image it looks like just circles not a sine wave - easy to model https://cad.onshape.com/documents/235120b2860379b7320cdf1cSenior Director, Technical Services, EMEA7
Answers
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you could make this with some curve scripts but you could also just use circle arcs
https://cad.onshape.com/documents/57f3ddd19d44f3c0031903a6/w/b499a2024fc0a55653bae772/e/db0b472b46edd36e57cf4f17
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Yes, from the image it looks like just circles not a sine wave - easy to model https://cad.onshape.com/documents/235120b2860379b7320cdf1cSenior Director, Technical Services, EMEA7
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I'm not able to reproduce the curve generator like @konstantin_shiriazdanov
what are the steps ?
- create the two variables a and d
- in the sketch create two construction lines with the angle constraint depending on a and the length depending on b
- create a curve generator defining the range of a and selecting d
this is what i did but the curve is not drawn0 -
make sure you don't use external references for sketch constraints and dimensions and also check if you selected all the features which are dependent from parameter variable


also notice that my #dl variable contains expression which depends on #a value: 2.5*sin(20*#a*deg)
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thanks !
and then once i have it how to create a solid from the curve ? I can't extrude ?0 -
the script creates 3d curve, to extrude the profile - create a sketch and project this curve in it ("use" command in Onshape sketch). then this profile would be usable for extrude.0
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thanks a lot for your help0
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I have this surface that I'd like to create a curve around. What is the best way to do this using the generate curve tool?

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@sam_biddle if you don't care much of the presize shape of those waves there are a plenty of ways. For example: https://cad.onshape.com/documents/59007ff281e43510ea3797a2/w/a6cb15bca8f1b2bf6e312ccd/e/3ef6c66875cc751998ad8d45
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