Will try a different brand once I’m done this spool. The weird thing is the white filament was perfectly fine. Maybe just some impurities or something.

The weird thing is that it prints fine now. Since I’ve fixed the issue I’ve sent over 3 jobs to the printer and all 3 printed mostly fine. Some stringing but it’s PETG so somewhat expected. It was just that first 10 or so cm of filament that just refused to melt. So weird…

I can’t really print it in a better material until I get ventilation figured out which might not be until spring of next year. I did order some parts from Prusa in case the part I printed fails so worst case I have to swap it out but so far it works very well :D

Gotta give it to them for making the machine so repairable. Even if the design here is a bit questionable.

Good luck man. It’s crazy that you spend so much time building this giant thing and you don’t find out if you built it correctly until the very end.

That is probably my biggest complaint with it. I’ve spent a long time building things before but for those projects I can always test what I’ve already built so I am never worried about it not working. But this, this is such a complex piece of machinery and you just kind of pray it works at the very end.

You might get more luck with responses by making a new post.

It’s pretty critical. It holds one of the pulleys that the belt is attached to. The belt moves the print head in the x/y axis. I actually did print the part in PETG. Hopefully it just works and I won’t have to touch it for a year :D

Thanks!

Actually ended up printing the part with PETG. It worked and the issue is fixed (for now). Removing the broken part was a huge pain. I ended up using a drill and just drilling around where the nut is until I could fit tweezers onto the nut then I used the tweezers to keep the nut from moving and a screwdriver to loosen the nut until the part came out. All-in-all it was pretty time consuming and annoying. Hope I won’t have to do that again for a while.

Thank you! You too!

I think I’m just going to buy the part from Prusa.

• They appear to be out of stock for PC - CF
• PC releases harmful fumes and needs to be ventilated. I’m going to find a venting solution eventually but not now.
• The part is way cheaper than a spool of the filament, I can get a few in case they break. I know I can print a lot of parts with that same filament but I don’t really have an interest in printing with PC - CF.

Ah I see. I’m guessing I need a hardened nozzle since it’s CF. :/

Thank you! I spent the whole day learning FreeCAD. Made a case for a ESP32 board.

LOL I didn’t even notice

I have some PETG filament on the way which is another reason why I haven’t looked at the issue yet. All I have is PLA at the moment.

I actually wasn’t bothered at all by the release. The price tag of the L is insane. And the Core One is already pretty insane especially for me as a hobbiest. I spent a long time trying to justify the price.

Thank you!

I bought the printer after the core one L news. The core one L is way more expensive (it’s almost double the price) so I went with the core one.

Would you build your second printer?

Haha. No.

I wanted to build the printer because like you said it helps you understand how printers work and this was my first printer so I thought it was a good idea. It also helps if you ever need to service the thing since you get a good idea of where everything is and what each part does. I also thought it might be fun because some people likened the experience go building a PC and I enjoy building PCs.

Unfortunately I have to say building this 3D printer was nothing like building a PC. It was way more challenging in my opinion. I was also very nervous the entire time because you don’t get to find out if the thing actually works until the very end. My heart sunk when I first turned the thing on and the Z axis was just completely not working. Thankfully the issue was resolved after talking with support. Definitely have to agree that Prusa support is amazing.

Also, I found assembly to take way too long. It’s my first printer so that might have been why it took 12 hours. I heard it took some people only 7 or 8 hours. I think I would draw the line at 5 to 6 hours for 3D printer assembly if I were to assembly another one unless the printer allowed you to test during assembly.

I broke one of the tension adjustment pulley thing. I loosened the belts to calibrate the y axis. When I was tightening the tension belt I absentmindedly tightened the bolt all the way and then some which broke something. Not sure what but turning that bolt now no longer moves the tension belt pulley. I can see the screw spinning so it’s not a stripped screw.

I’m going to look into what actually broke in a few days. Kind of exhausted from assembling the thing. As a result of this the top belt is a bit tight (its like 105HZ) but the prints come out ok-ish so I’m not in a rush to fix it.

Ohh. Good to know. Thanks!

Pretty busy at the moment but I have seen TinkerCAD mentioned a bunch so I will give it a shot when I have some free time.

After reading all of the comments and doing some research on the side it definitely looks like PETG is a great all rounder for functional prints. Guess I’m going to need a filament dryer.

PETG, ABS, ASA and TPU seem like the most common functional print materials, of course each has it’s own strength. If I end up doing ABS/ASA one day I’m doing to have to figure out a good ventilation solution lol.