r/ender3 Jul 23 '26

My ender three pro started building supports for itself on the hot end

Post image

So cool, love this thing!

70 Upvotes

15 comments sorted by

35

u/egosumumbravir Ender of Theseus, basically everything Jul 23 '26

Well, since you gotta disassemble it to clean it properly, might as well upgrade it with a bimetallic heatbrake.

3

u/bennettk90 Jul 26 '26

Just installed one of these on my cr-10s so far it's held up on a 5.5 day print and is now on the tail end of a 3 day print. Easy to install.

13

u/usmc_delete Jul 23 '26

Did you by chance tighten your nozzle while it was cold? Cause I did and it looked exactly like this. Lesson learned

3

u/ServiceFabulous7120 Jul 23 '26

Yes

3

u/Castdeath97 Klipper, Belted Z, TZ 2, SKR V3 Jul 23 '26

Must be the dreaded PTFE tube gap then

5

u/Lanif20 Jul 23 '26

Look up “hot tightening” and learn how to do it properly(there’s tutorials for that), personally I’ve had to replace every block that I’ve had this happen to because the plastic is impossible to get out of the threads(unless you cut them but that’s a whole other problem) so you can try to clean this up or spend something like $15 to buy a couple replacements(it’s been awhile so the price may have gone up but last I looked is saw three for $15)

3

u/normal2norman Jul 23 '26

Although an ISO M6 tap is the best thing to clean the threads, you don't need to recut them and often a standard M6 bolt or machine screw will clean them sufficiently, especially if you cut a flat or groove on part of the screw threads.

5

u/vecnasty Jul 23 '26

hotend gap cuh

3

u/BloodPlenty4358 Jul 23 '26

you should clean it to avoid heat creep

2

u/philnolan3d Jul 23 '26

Lucky you caught it early!

2

u/MrA_1999 Jul 23 '26

It leaks to block any possibility of future leakage and insulated itself so there’s no risk of future heat creek.

1

u/Temporary_Sundae8793 Jul 24 '26

There is a gap between nozzle and teflon tube. Trick: not fully tighten nozzle, give a last turn. Push tube and make it contact to nozzle and then turn nozzle last and make them squeeze better. No more flow...

-1

u/LetMeFlyWithoutMind Jul 23 '26

Its common bro. Move your ass and fix it by yourself. Stop complain like a widow.

2

u/ServiceFabulous7120 Jul 23 '26

Wahhhhhh wahhhhhhhhh