Something is wrong with the hot-end design


#1

I have written a little about my problems with the Nano hot-end on my blog: poz9ny.blogspot.dk .
Hopefully someone at vertex/vellemann takes action.

/niels


#2

I think you have a typo in the url.
This one works for me:
oz9ny.blogspot.de


#3

It looks like you did not follow the instructions.
If you look at it the bracket that holds the hot end is tilting to the left.
You need to start there.


#4

Which bracket?

When I first realized that the temperature newer reached ABS level I mounted the hot-end in a teststand and wired the hot-end to the motherboard and the ptfe from the extruder.

But the I still miss a cooling fan.

/niels


#5

Well. The heating element in the Vertex hot-end is 30W according to docs.

I have replaced the heating element with a 12V 40W and now I have no problems with temperature. Filament load works with both PLA and ABS and takes no time compared th the original heating element.

The ed3-v5 hot-end also uses a 40W heating element that’s why it worked out of the box.

/niels
PS Photos of revision 1 of my cooling fan can be seen on my blog: oz9ny.blogspot.com Revision 2 will be printed tonight.