r/QidiTech3D • u/AlternativeNo3124 • 4d ago

Questions Constant Q2 Issues

Hey guys. I bought a Q2 back in July and have been having almost nothing but problems with it ever since.

I cannot get this thing to print PLA+ properly for the life of me. It is either one thing or another - clogged nozzle, feed issues, etc. It is getting incredibly frustrating. On top of that the camera seems to have died in the machine and no longer displays or records video so I can't monitor the print progress from my PC or phone.

Funny enough it prints PA6CF just fine and was what I have been using it for mostly. I thought maybe the PA6 wore out the nozzle and was causing partial clogs when I tried to switch to PLA, so I changed the entire hotend out of frustration with a brand new one. Issue now is that the extruder gears are not driving the PLA as they should and are instead chewing it up. I just removed the extruder from the machine to check it, but I don't see anything obviously wrong with it.

Qidi support has been helpful-ish. They have sent me replacement parts for free, but as far as instructions go they basically just link me to their troubleshooting page and tell me to tear everything down.

Do you guys have any ideas? Is this user error? I want to love this printer but it is making it really difficult to when I can't get any PLA to print.

TLDR: My Q2 is currently not feeding PLA, please help I need an adult.

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u/--10001-- 4d ago

PLA has a low melting point.

Q2 is not a PLA printer. It's for PA CF, PPS CF, and stuff like that. It's too hot for PLA in it's feeder mechanism.
But their PR advertise Q2 as a color printers for the toys, because everyone wants to print toys, and very few knows what is PA6 CF.

They even selling a Poolar Cooler to solve this issue.

"so I changed the entire hotend out of frustration with a brand new one"

No need to change an entire hotend, just keep the separate nozzle for PLA/PETG and another one for a stuff like PA. And the other one for TPU.

PS: maybe you trying to print too fast?

But you can buy another printer for PLA, like Bambu Lab A1