I need to make a model of saddle surface. The surface is given by equation z = y^2 - x^2, and I must have some thickness - It will be printed on 3D printer.
I have Inventor 2014 and I dont see possibility of making the surface directly in Inventor. Is there any trick for that?
I tried this solution: I made 3D surface in Matlab, exported it in .stl and opened in Inventor - but this only makes the surface with no thickness. Functions extrude, loft require 2D sketch. Any trick for this?
Solved! Go to Solution.
I'm afraid I cannot use solution as stated here Equation-driven surface ...
Unless my math fails me, you can do exactly as explained in that link. Can't you get it by sweeping z = x^2 along z = -y^2?
Depending on how you want this printed, one of the attached (or a variant) should be a good starting point. Let me know how it works, and post a picture of your printed part!
If you got the stl, Convert the stl to iges. (Autocad Mechanical will translate stl to dxf or igs)
Then in Inventor, open the iges and apply the Thickness Tool to the surface. (in Inventor, You can't use Thickeness tool directely in impoerted stl)
alewer nailed it. If the parameter d4 is changed to 2 inches, the parallel sweep surface will become exactly like WolframAlpha's example.
Just FYI, alewer's model creates a surface of z = x^2 - y^2.
If you want z = y^2 - z^2, change the sign in each equation in alewer's model, and you will see this surface:
Thank you all for your advices
I think I misunderstood the sweep tool before. Your solution works - I took your model of saddle, adjusted it a bit and added a holder (see in attachment).
As soon as I have photo from 3D printer, I will post it here.
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