MK4 Assembly of E3D hot end assembly
https://wiki.e3d-online.com/E3D-v6_Assembly
Educating myself about the MK4 assembly. I wanted to learn how to assembly a second hot end block assembly.
Found these instructions.
RE: MK4 Assembly of E3D hot end assembly
The MK2 and MK3 uses an E3D hot end. The MK4 does not so those instructions do not apply.
RE: MK4 Assembly of E3D hot end assembly
I agree, however…I ordered a set of spares (heater element, thermistor, heatblock, V6 adapter, hardened nozzle) and wanted to learn how to asemble these parts. Quite aware of the Nextruder assembly as well, but also wanted to learn how to use legacy V6 nozzles as well.
RE: MK4 Assembly of E3D hot end assembly
I was considering using the V6 nozzles on the MK4, and was advised it isn't a good idea.
Anyway, to assemble an MK4 hotend, just screw the nozzle into the hotend, put the thermistor into the smaller hole and tighten it down with a setscrew (NOT a grubscrew). Do the same with the heater cartrige. Then plug both into the Loveboard (find the kit assembly instructions for the proper plug in the Loveboard to plug in the heater and thermistor. Then slide the entire assembly (nozzle tail first) into the Nextruder and tighten the two thumbscrews. If you aren't really tidy with the cables, the fan door won't close properly (this is a design flaw). I have a second set of heater/thermistor heat block assembly with a different nozzle so I don't have to unscrew the nozzle when I want to change it. I also order two (.4mm and .6mm) ObXidian nozzles. I have used these nozzles on my MK3/S (with a Revo 6) and they work great.
Senior Life member of IEEE.
RE: MK4 Assembly of E3D hot end assembly
https://help.prusa3d.com/guide/how-to-install-the-nextruder-v6-nozzle-adapter-mk4_416174
Info on installing the V6 nozzle adapter on a MK4
RE: MK4 Assembly of E3D hot end assembly
Read the reviews on the adapter. I had this same problem on my MK3/S printer. Even if you really tighten down the v6 nozzle, some filament will leak out around the nozzle. That's why E3D came out with the Revo, and Prusa has a slightly different (but similar) design with the Nextruder. That's why I replaced the nnozzle/hotend on my MK3/S printer with the E3D revo 6, which solved the problem. The V6 (and other nozzles of that ilk are a bad design. The print cooling fan on the Nextruder is also a bad design. Aside from firmware issues, the MK4 seems to be decent.
Senior Life member of IEEE.