Would seem odd, but if it seems like your leveling wheels are backing off, maybe the threads are worn on them? It would suck to replace them only to find out that wasn't the issue though, but if you have a spare set / originals if you've upgraded, maybe see if those are more stable?
Depends on which line of Makita you buy into I think. I have a right angle drill and the "good" angle grinder from them (not that xlock bullshit) and both get moderate use. Both are 5-ish years old and still work great.
I think it's "Ze German" in me that wants to build a printer from scratch lol. That, and 350x350 core xy sounds like fun. I need to have at least three unfinished projects going at once to feel sane 🤣
How do you like the Qidi? Sorry I've been neglecting this group for a while if you've been "harping" on them... I saw a couple reviews and they looked interesting
Having finally seen a Prusa in action, I would have to say they're both great printers (I have a p1p that I upgraded to a p1s). I understand the arguments against Bambu, but honestly if you're not printing anything overtly illegal or truly creating things you plan on copyrighting, you're fine, and if you are that paranoid, you can remove the tape behind the front faceplate and simply unplug the wifi antenna and just print from the SD card, just save in .3mf
Think of the two as Android (Prusa) vs Apple (Bambu). Both will do the job just fine, just depends on which ecosystem you prefer.
Make sure nothing is bent, cracked or otherwise broken. When assembling, make sure the z gantry is square - put the screws in loosely and slowly tighten them evenly, then before making them tight, make sure it's square. Best bet for a beginner FDM machine is going to be a basic PLA.
Stephen King's latest novel, "Worm Semetary"