J-head on an Ultimaker?

[tommyph1208 53]

I got my fingers on an original j-head MK V Hotend, and it seems like a great product, very small/compact and seems pretty robust...

Has anyone ever put one of these in the UM original?

If so, how were the results?

 

[jonnybischof 59]

Aren't these designed to have the extruder mounted directly on top of them?

Afaik there is no interface on the J-head to mount a Bowden tube, so you need to have a somewhat more complicated printhead design than for example with the E3D Bowden hotend. I had a look at the J-head (and clones), but that's why I chose the E3D in the end...

 

[tommyph1208 53]

I dont know...

The one i got has a screw (called umbraco in DK, dont know if thats an international title...) in the top that can be taken out so the top has internal threads...

A few pictures:

 

 

So im guessing if one could find a coupling that fits the diameter and threads it could be used straight out as a very compact little bowden hotend..?

 

[jonnybischof 59]

Ok, that's different from what I've seen. Guess I only know a clone which doesn't have this thread...

If you find a fitting coupling, that's probably the best solution you'll get

 

[jhertzberg 18]

Would the diameter allow you to cut the threads directly into the bowden with a die, and forgo a coupling entirely?

 

[tommyph1208 53]

Would the diameter allow you to cut the threads directly into the bowden with a die, and forgo a coupling entirely?

Sadly not, already tried... I think the thread is M8, the bowden tubes i have both measure just around 6 mm. on the outside, so they are actually quite loose in the hole...

Also i kind of like the push fittings, and how you can easily remove your bowden from them... That gets alot harder if the bowden is screwed directly into the hotend...