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When I create a new plane in Onshape, is there any pattern in the x-axis of this plane?

jg_kjg_k Member Posts: 6

I want to find the correspondence between the old origin and origin of the newly created plane.Can someone tell me how to calculate the two adjacent sides of a right angled triangle in the diagram?

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Comments

  • EvanReeseEvanReese Member, Mentor Posts: 2,148 ✭✭✭✭✭

    I don't think I understand the full question about the triangle. I can't tell which plane it's sketched on. Can you describe your end goal a bit more?

    But the x-axis of the planes can be a bit unpredictable. As I understand it this is actually a math limitation more than a code limitation as demonstrated by the hairy ball theorem. If you look at the images in that link and imagine the "hairs" as the x-axes of all of the possible planes you may see what I mean.

    Evan Reese
  • eric_pestyeric_pesty Member Posts: 1,891 PRO

    Not sure what you are trying to do but one thing to consider would be to use a mate connector instead of a plane, that way you have explicit control of the axes.

  • MDesignMDesign Member Posts: 174 ✭✭

    sine of angle = opposite side / hypotenuse

    cosine of angle = adjacent side / hypotenuse

    also unclear what you're trying to accomplish.

  • rick_randallrick_randall Member Posts: 330 ✭✭✭
    edited November 21

    Others can correct me if I'm wrong, but each part studio only has one origin - and it is the intersection of the front, right, and top planes (planes that you create, do not have origins). You can use the "use" command to reference the origin onto a new sketch that you have created but this reference point will always be "normal" to the plane you are sketching on. If I understand what you want about the triangles, you could just edit the sketch with the triangle and dimension all the sides,and angles you need (and don't forget about constraints).

    If you are new to OnShape, I would take the self paced learning courses in the learning center, there is a lot of good information in there (most courses are free - but some aren't). Keep at it.

  • steve_shubinsteve_shubin Member Posts: 1,096 ✭✭✭✭

    @jg_k

    In the below document, I use a MultiMate Connector as a Plane

    WHEN I CREATE A NEW PLANE IN ONSHAPE, IS THERE ANY PATTERN IN THE X-AXIS OF THIS PLANE?

    Try using a HORIZONTAL CONSTRAINT to get something along the X axis

    I want to find the correspondence between the old origin and origin of the newly created plane

    The document below is a way of using right triangleS to see how the unalterable origin in the program relates to a point within another plane

    https://cad.onshape.com/documents/914965badce1554516e9120c/w/fa75b31f9de48e9ff76a6b58/e/61839948da753373aecd1b9c

    Can someone tell me how to calculate the two adjacent sides of a right angled triangle in the diagram?

    The document also gives all the dimensions of the right triangles which in this case, eliminates any calculating. In one case the USE TOOL is used to bring the lines into a sketch and then dimension.

    IN THE DOCUMENT ABOVE, STEP THROUGH THE LIST ON THE LEFT TO SEE HOW THINGS WERE CONSTRUCTED

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