I mean it's a real problem, but it's also a solved problem, and also not a problem that comes up a lot unless you're doing the sort of engineering where you're using a CAD tool already.
I don't doubt it's useful, and seems pretty well crafted what little I tried it, but it doesn't really invite much discussion.
Also, just a URL with no explanation and no supporting text in the post.
If the poster can't be bothered to talk about why they made it... actually it's not even that. Just say hello, at least a hello. Show your audience you're a person. Humans like to talk to other humans.
I mean it's a real problem, but it's also a solved problem, and also not a problem that comes up a lot unless you're doing the sort of engineering where you're using a CAD tool already.
I don't doubt it's useful, and seems pretty well crafted what little I tried it, but it doesn't really invite much discussion.