I am pretty new to Blender, and have run into a problem that's been bugging me for days now, and I can't seem to find any solution in the forums.
Basically, I'm trying to fabricate a vacuum manifold with a weird shape and ideally a constant 3mm thickness. Here is one-half of the object without any thickness (I haven't applied the Solidify modifier yet):
Everything looks hunky-dory when it's just a 2D mesh, but once I try to add a Solidify modifier, I get very strange artifacts in two small strips on the cylindrical end:
I've tried using the wireframe view to see if there are any errant vertices or edges, but all I can see are these weird curvy edges (in the vicinity of the deformations) that I can't seem to select or delete like normal edges between vertices. These weird, un-selectable edges seem to disappear when I remove the Solidify modifier and go back to a 2D mesh.
As long as I'm here, I'd also be extra-grateful if anyone can tell me how to make the thickened edges of the 3D part align so they're flush with the YZ-plane (since I plan on 3D printing this part and its YZ mirror-image and epoxying them together to create the complete vacuum manifold!).
I'll attempt to add my ".blend" file to this post. I am very new and clueless with Blender and I'll bet I'm missing some basic concept ... literally any advice would be very much appreciated!
Thanks in advance.