M201 - won't print

[derf32]

this might be a manufacuring defect, you need to contact the sales to talk about it.

thanks for your answer, i've contacted them

[stefbois]

I got similar issue and I did resolve them that way...

For any coil filament in the extruder hot end...
I did face two things:
- Ptfe not in properly...
-The temp of the nozzle was too low.

End for the oozing it append to me when my temp is to high and I push to much filament in.
Repeltier calibration or manual selection 100% at 109%

[Ariel]

Hello all, I totally solved this issue, going from a total mess of no-print to perfect printing.
The reason is very simple detail in mounting, something that some do and other don't, which is not explained in tutorial.
I guess if somebody is not a first-time printer can figure that out after a while, but it took me serious study to find out.
I could actually charge 10$ each for this simple secret and become a millionaire.
But as I like games, if you send me your email address I will give you the solution and show you my new money making activity, which is absolutely not the usual Internet scam!
My email bonvini(at)top.it

[idom]

expecting a new hotend.

[William]

Well, another frustrated M201 on the line, I have tried most all: inserting the tube till the end, adjusting voltage, and unclogging easily a dozen times or more. A couple months and still not a single print, many projects and meters of filament wasted. Please resolve this issue Mr GEEETECH guys, there is obviously a main issue here.

Have you tried this?Disassemble the hotend:

Having same issues here. I seems like you got some filament clogged in the cooling chamber/heatsink part of the hot end. Your best bet is to disassemble the hotend and push out the filament, you will need to unscrew the four mini screws on the back to release the heatsink from the two tubes. There is probably filament cooled in one of those tubes which does not heat up enough to melt due to the fan. Usually this happens when you pull the filament out of the feeding tubes. You might need to heat the extruder without the heatsink on to soften the plastic.

I've unscrewed every little bit of the hotend, just be careful you probably need the hotend hot to even take the parts off because the plastic will keep it in place and you can grind the metal trying to open it.

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The plugging length should be as long as the red arrow shows:

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[Ariel]

Well guys,
after having solved my issues and started printing, looking at it backwards, here is my main suggestion:
Why don't you buy some quality PLA to start with?
Something that is easy to print, so you reduce issues to the bare minimum?

I now found out that some of the cheap PLA I bought won't print below 220 C and I get a lot of trouble as if the printer won't work, while with other PLA it works like a bliss.
So check your PLA before you start looking for all sorts of technical causes!

[macinblack]

I tried this on my extruder, but one hole is always stucked... what can I do?

[Ariel]

Check on the cooling and on the full insertion of the tube.
Usually in my case it used to melt and become big, then it doesn't melt anymore.
You can also pull out the heating part a little to make sure it melts at the bottom of the tube.

[idom]

We see the importance of instructions on how to add the filament and installing the ptfe tube, none of which are mentioned on any of the building guides or videos. In my case, I had already cut the tube to the exact length and now that it should go 4 cm more deep it is just not enough long.

[Ariel]

You can cut a small piece of tube and stick it inside, as I did.
So you don't have to worry about insertion length.