Hi Jesper, over here when I delete the bottom faces and run Planar on them, I get a planar surface just fine. So your bottom is very nice and flat.
I used a script that selects all naked edges, the one that you can set up on a keyboard shortcut as described here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=4869.5
I think most likely you did not get a result because you probably missed selecting some little edges - there are a few small areas where you've got a kind of micro shelf in the shape, and these form a few small edges on the bottom. If you did not select those when doing the Planar you would not have had a totally closed loop going. Planar needs the curves you select to be all coplanar and also they must form a closed loop.
The little shelf area are in these spots here:
That's really small in size though, about 0.01mm long, probably less than the printing resolution itself so I doubt it will be perceptible in the print. But it makes for a small edge in the bottom loop which is hard to see and select unless you are zoomed in pretty closely. And if you do not select it when running planar it means you are not making a closed loop which is probably why Planar did not work for you.
When you go to generate the STL file to send for printing, you will probably want to use the "Divide larger than" parameter in the meshing options that pop up to avoid having any large triangles that span a large distance across the model. Like for example put in Divide larger than = 3 so that any triangle larger than 3mm will get additionally subdivided. That then helps avoid artifacts from having triangles on something with slight curvature that might span a longer distance.
- Michael |
