Wow, it didnt even give me an ai overview when I tried it. Just the sight of the first search result right under the search bar… it’s almost like I’ve forgotten what recent pre-ai internet was like.

A few things I might consider/think to try:

• How old is the PLA you’re using? Is it possible it’s absorbed too much moisture?
• Are you printing too fast or possibly under-extruding?
• Skip the glue. I’ve found it’s just gunk that separates the filament from the print bed, worsening adhesion in my testing. Clean your print bed with rubbing alcohol before hand.
• How old is your nozzle? If you’ve been printing for a few hundreds of hours, the inner diameter of the nozzle might be worn out.
• How hot is your print bed? For PLA, I’ll usually keep mine around 60°C.

I don’t have a Bambu, but these are a few of the things I’ve learned with my Monoprice Maker Select v2 and Ankermake M5.

I haven’t used FreeCAD before, but if it’s anything like inventor or fusion360, you might be able to edit the individual part and either reload that one part into the assembly or start a new assembly. Do you still have the .ipt file or equivalent for that one piece?

I’ve used Inventor and Fusion360 for small personal projects since 2014. In an instance like this, I would just draw a quick 2d shape off of the front face in your picture and cut it. Sometimes it’s just not worth the time to figure out. Are you modeling professionally?