Greetings! I received my 2020 last week. It's my first printer and I stayed up all night building it. Unfortunately, I wasn't able to get any decent and my hot end got terribly clogged. It turns out the PTFE tube was damaged. I ordered a few replacement throats with the PTFE but I figured I check out the electronic surplus store over the hill. I was amazed that they had the exact PTFE tube that Iby catbagan - Prusa i3 and variants