Hi,
I have just had a Revolve operation that failed after changing a sketch dimension. The operation was to cut a 1mm deep chamfer into a body. When I do "Edit profile sketch" I can see that the dimension now sits 1mm proud of the existing surface rather than 1mm below it - the dimension has flipped.
It shouldn't do this. All I did was change a sketch dimension to extend the length of the tube. The cutting body should have grown to compensate.
The version I drew was like this:
- note the 1mm dimension at top left that defines the cutting depth relative to the existing profile. The selected profile should revolve to cut back the inside of the tube.
The corrupted version looks like this:
so the cutting profile is now 1mm clear of the tube - it does no cutting because the 1mm dimension has swapped direction. The sketch is also upside down now - maybe this gives a clue as to why the problem occurred.
The dimensions should have translated along when I changed the spigot length (below) from 10 to 13 mm in Rod Flange Sketch 1:
It's a bit of a pain when changing one dimension corrupts the timeline but it could easily have corrupted the design without me noticing, which would have been much worse.
I am attaching the original and corrupted model files.
Roger
