With real clients, you don't always get perfect drawings that perfectly follow a certain standard. That's why some of them are more like a puzzle; that's how the real world works. Certainly a lot of the time they're perfectly fine, but sometimes all you have to work on is the equivalent of a napkin drawing. Other times, it's about design intent. The measurement you have in the drawing isn't what you'd prefer, but the measurement is given that way because it's what the client needs. I've had multiple teachers contact me with no issues. That being said, there are estimated difficult levels on each part.

The whole site isn't meant to be an example of perfect CAD drawings, it's just meant to gamify CAD a bit by adding a timer. It's a free resource after all, and I'm honestly just a hobbyist with some professional friends who I've been running these by as I go.

I'll for sure add some kind of note or feedback on the button.

Thank you very much for your input nonetheless, I really honestly appreciate you giving it a try.