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Extrude Remove Leaves a Shell, or a Face, of the Part that was There

I extrude to remove part of a piece, but Onshape fails to extrude one side of the shell of the part I was extruding. This has happened twice now. Once I got it to work by extruding to 'add' material, then I removed it all plus what I wanted. This time that trick does not work. Any ideas for how to fix this? thx -
Flatten eliptic arc based object
Dear colleague, is there any hint-workaround for creating a flattable "something" of the attached object such that it could be finally cut on a laser cutter? All my attempts (extruding solids, thickening surfaces, extruding/thickening metal sheets) failed so far. I tried to insert a link to my document but it says that the… -
Re: How to set normal direction for a hole?
If you want the code to figure out which direction to extrude automatically, you can try to extrude it in one direction, and then extrude in the opposite direction if there was an error. That's what I do in my Mounting Boss featurescript. So looking at your code, you could try something like this: var extrudeDefinition = {… -
Re: Designing a logo.
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Re: Frustrating inconsistency with "Edit in Context"
Hi NeilCooke, thanks for the fast response. I'm sorry to say that this answer didn't help (though I'll be first to admit the error could of the 'pilot' variety). First, the workflow for both operations was the same- edit the to-be-drilled part 'in context' and transfer the hole sketch from the previously drilled part.… -
Re: Why is this draft failing? In general, opDraft vs. draft?
Anything starting with op is what you want to default to since it's lighter weight. The non "op" function is the actual native feature you get when you click the feature icon to use it in a part studio, which means it carries with it a ton of extra code you may not need. For example: opExtrude() just extrudes a face in a… -
How to make the transition from a chamfered edge to an unchamfered edge?
I'm modeling a porch column in Onshape. The top and bottom parts are square in cross-section, extruded from separate planes. The middle part is an octagon in cross-section (basically a deeply-chamfered square), extruded from a separate plane. Between the parts are short transitions where the octagon becomes square, where… -
Re: Cannot modify a part that has mesh as one surface

Something about the preceding Split and/or Lip operations leaves you with a bad edge on that top face. The parasolid kernel is not able to make further operations to a face bordered by a bad edge, so your hole operation fails. I would recommend not doing the Lip and Split operations and instead do one extrude to remove the… -
Boolean operation failure

How on earth does this simple extrude result in a Boolean operation failure? It's as though it's only offsetting the plane, not actually extruding. Not asking it to do anything fancy, just simply extrude the face of the open cylinder another 20 mm. Now it will allow me to execute the operation if I extrude as "New". But I… -
Re: FeatureScript Extrude Help
Overall, you design is solid: Try and extrude in one direction and if it fails, try it the other way. The specific hiccup in your code is that FeatureScript operations still get logged in the journal, even when the feature fails. That means the id for a failing extrude still needs to be unique, and the error your getting…
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