Extruder is a GARBAGE

Creality Hi Printer
1

I cannot believe this is happening AGAIN! In less than a year, I’ve had to replace the extruder twice because the damn plastic gears wear out and lose contact with each other, causing sub-extrusion.

This extruder is utter garbage, and I have no idea what Creality is waiting for to finally replace these absurd plastic gears with a full metal kit. It’s blatantly useless to build a printer capable of decent speed if it can’t even endure normal work time.

This situation is outrageous, infuriating, and completely unacceptable. Immediate action is required because right now, this printer is a joke of engineering.

2

I have yet to replace the extruder in my Hi and I’m getting close to 6000 hours (oops sorry - that should have been 4000 hours) on it. What material are you printing with?

3

That was the first thing I replaced,went to metal gears right off. Honestly the metal gears are only $4.99 on Amazon.

4

Just petg and PLA!

The first extruder was changed 10 months after the purchase, and now, Just 3 months after the replace!

5

But the gear that i need to change to metal, is the reduce gear, the one whos stay conected to the motor! And this one is not replaceble

6

I only use PLA but wouldn’t think PETG would be abrasive. I just had to unclog mine (which I’ve done 2-3 times), but the gears show no signs of wear.

7

I’ve logged around 800 hours or more on this printer (the Creality HI); I’ve never disassembled the extruder, nor have I had to perform a “cold pull” or anything of the sort. I’ve printed with PLA, PETG, and TPU (though TPU didn’t work for me, even with a spacer), and I’ve successfully printed many times with PLA FLEX (using only a 0.6 mm nozzle) and PLA SILK. I even used damp filament at one point because I didn’t own a dryer back then (I do now), yet I have never—ever—experienced a clog, not even with TPU; when a TPU print failed, I would simply heat the nozzle to around 200°C and pull the filament out by hand. I did the same with PLA FLEX: I removed it manually by heating the nozzle to 200°C and pulling it straight out with my hands. However, for obvious reasons, I recommend extruding a fair amount of standard PLA to clear away any residue left in the nozzle or extruder after manually removing flexible filaments without using the cutter—or simply printing something with regular PLA. The same applies to “silk” filaments: after using them, print something with standard PLA to leave the nozzle clean while the machine is idle.

8

I don’t think the extruder is junk; rather, I suspect something is going wrong during printing. Perhaps the filament doesn’t have the right diameter or has imperfections, or maybe the cutting blade needs replacing: if it loses its edge, the cut won’t be precise enough for the printer to retract the filament correctly, which will end up causing a jam in the extruder.