offset a spline

bikr7549

Hello,
I am working on making a model for a kids puzzle to 3D print, tracing over a cartoon figure jpeg imported into a sketch. To make the individual puzzle pieces that lock together I planned on making a spline for each part in a sketch and then in another sketch (in a new part) offset the shape of the previous part by some small amount (.50 mm) to create the fit of the joint. But I cannot offset the previous sketch's spline, I get the error 'offset failed, one spline generated multiple offset curves'. Is it not possible to offset a sketched spline?

Bob

_anton

Do you need to offset the splines in a sketch? I think this will be easier if you extrude the parts first, then use the Move face feature on the side faces. Like so:

https://cad.onshape.com/documents/76e00336c0da13abcb99de5a/w/2b54a58cb5ca3bfddaa9df1b/e/2bdef804559c38ba4c57062b

bikr7549

Excellent Anton, this works perfectly, thank you! I had to experiment a bit to figure out how to use it, but it does exactly what I need to do.

bikr7549

and, including the example model was a big help to figure this out. Words may have done it, but the model made this much simpler.

_anton

And protip: switch to side view and box-select (right to left) to select all the side faces at once into the move face feature.

paul_scott083

OMG this feature is ace... thank you

john_lopez363

@bikr7549
I was curious if it could be done using Extrude Thin, with the Remove boolean operator!   Why yes it can... as long as you're judicious with the merge scope of each Extrude Remove operation.

1) All splines are in a single sketch (upper right pic)
2) Extruded the solid rectangle first (lower right pic)
3) Extrude Thin with Remove operator using a single spline (lower left pic)
4) Repeat until all splines are "removed" (upper left pic)