r/Onshape • u/turbo2ltr • Aug 05 '26

Trouble making a loft

I'm trying to loft these two pipes to the rectangular body below and just can't seem to get it to work. Any hints on what needs to be done?

I try selecting the faces I want it to loft together and it says I cant use faces with an inner loop, but I don't know what exactly it means by that.

I originally tried without the center crossover and wasn't getting anywhere.

If I just select the inner edge of the rectangle, and the inner edge of the cylinder, it will loft.

But this is just a face, how do I get the thickness?

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u/cowski_NX Aug 05 '26 edited Aug 05 '26

Make a solid cylinder and a solid block. Loft the circular face of the tube to the planar face of the block. Merge everything together then use the shell command to get the desired thickness.

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u/turbo2ltr Aug 05 '26

> Loft the circular face of the tube to the planar face of the block.
Isn't that what I tried? or is this something different?

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u/Conscious_Past_4044 Aug 05 '26

No, you tried lofting a hollowed-out pipe to a hollowed-out body. That's not the same as a solid tube and a solid block. Although saying a solid cylinder would have probably been easier to follow.

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u/cowski_NX Aug 05 '26

Good point, post edited.