[Hemera extruder to UM2 or UM2+... anyone?]

On 5/29/2020 at 11:41 PM, TheGrine said:

 I thought about the same Thing but opted for a Bondtech BMG + pancake + Hemera Hotside + custom heatsink:

 

 

First test prints look good, but I am still testing this for reliability. 

But there is also a UM2 Head assembly with BMG-clone and V6-clone on the cheap on Aliexpress that I haven't tested. 

Hello TheGrine, im interested in this configuration, could you please give me feedback of the configuration?

 

Did you have STL for the mount?

[Why it clogs? teflon coupler?]

Hello guys,

My printer is definitely working as before :-P i didnt know you have improved the coupler, and i was thinking on getting this replace

http://www.aliexpress.com/item/-/1959140480.html

But obviously i prefer the fiberglass one :mrgreen:

 

[Why it clogs? teflon coupler?]

Hello again,

I had to drill a 4mm hole, the deformation inside was like 4.1-4.2mm.

Its printing right now, and im seeing a great difference, its printing almost like the old days! hope its fixed!

Thanks everyone!

 

[Why it clogs? teflon coupler?]

2 Pictures of the bottom:

 

[Why it clogs? teflon coupler?]

Thank you lRobertl & gr5.

The 3rd fan is ok, it works fine as always. Also, i always put the bowden tube with your screw method IRobertI, if i dont do this, it only prints like 20 seconds.

gr5 your idea of making a 3mm drill was my next move, the teflon part is, as you said, a bit deformed on the heated side, i cant even pull it out. Pushing some virging filament feels with a hell of friction, thats the reason i blamed the teflon.

I will try the drill next, lets see what happens. Thank you!

 

[Why it clogs? teflon coupler?]

Hi people,

Im having a lot of problems with my UM2, it started 1 month ago, now its impossible to make a single piece. I checked a lot of threads and used your advises but now im just lost, nothing worked.

 

The print start normally, but passed 2 o 3 min, it starts to and the filament clogs. When i pull the filament after this, there are always a ball bigger than the tube.

I did the atomic method, and the filament is always damaged, no matter the times i do ( last time i did like 10 times and the result after 4-5 was the same).

I used a 0,3mm hypoalergenic needle to clean the nozzle, but nothing changed.

I tried to eliminate the tension on the feeder using just 1m of filament, but the tension is not here.

I thing my teflon coupler is the responsible of this,

 

sorry for my english :(

Any ideas?