A collection of 'not to do' tips

[Occasional machinist]

In this clip, I show things that you should avoid doing if possible - mainly because it causes more work or additional complications. Of course, sometimes...

[uv8452]

Thank you. I am looking forward to a continuation of your observations. And please use more sketches.
By the way: The everyday world is full of mechanical design blunders. Some make you laugh, some make you cringe.