freedman wrote: ↑Tue Nov 09, 2021 11:24 pm
I'm not sure the goal is parametrics, thats what happens when you apply the polar array in solids.
I know, and it's a very good idea in terms of making the sketch creation more convenient, but I believe some of the people on this thread had reservations about the Sketch Array not being parametric (I suspect for the sake of making the final model more robust?).
freedman wrote: ↑Tue Nov 09, 2021 11:24 pm
The copied objects would have constraints so they would all update together. I like this because it gives us more options, we already have an array tool.
Oh ok, you're completely right. I see now that the
copy function creates some (=) constraints that keep the "Slave Geometry" defined. I was confused because this for some reason does not happen when I use the Sketcher Symmetry (Mirror).
I put together a crude array using copies in the suggested way. I acknowledge this was a sub-optimal way of defining the geometry and there is a lot of construction lines to create an "anchor" in the middle of the triangles and a radial line to the center of the array. The latter is to rotate each triangle so the round corner faces out. I guess I could have referenced the circle or polygon edges but I assume the copy function won't be smart enough to copy an angular constraint to another reference for each copy.
- Copy_based_array.PNG (97.02 KiB) Viewed 1393 times
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So I tried another setup where I have the anchor on the middle of one of the triangle lines, and then made this line tangent with the circle that comes with the polygon. That works and it's certainly much better than the previous version, but the tangent constraints have to be added individually as suspected. Still though, the slave triangles update nicely from the original once everything is set up.
- Copy_based_array5.PNG (35.91 KiB) Viewed 1393 times