My 5 year old notebook is starting to show it's age, so I want to finally build a "real" PC. I rarely play games, so this is probably overkill - But I don't want my PC to be what's stopping me. I also expect it to last a while.

I chose all AMD because I'm running linux, and AMD seems to still be the best choice for that.

I found a couple similar posts on which I based this list, so most of the parts are probably fine. I'm unsure about the cooler: How much headroom should I leave? This one is rated just 10W higher than the CPU TDP, so it might be cutting it too close.

PCPartPicker Part List

I just found out that the Getty museum released a lot of artwork into the open domain, including quite a few stereographs. These are meant to be viewed with a stereoscope, but I’ve found they work amazingly well in crossview.

I just found out that the Getty museum released a lot of artwork into the open domain, including quite a few stereographs. These are meant to be viewed with a stereoscope, but I've found they work amazingly well in crossview.

I built my 3D printer a couple of months ago, but I can't get it to print sharp corners. The corners in the picture should be 90°, without any fillets:

During this test print, I played with multiple parameters: speed, temperature, acceleration, junction deviation, linear advance. All of these were also individually tuned previously. Nothing seems to make a difference.

Could this be a issue with the construction of my printer? I'm beginning to think my hotend isn't rigid enough, but then I would at least expect better results at low speeds.

Edit: the printer is a CoreXY of my own design running Marlin 2.1.2.1. The Slicer is PrusaSlicer with most settings left as default (but increased speeds)