Well crap guys… The fun didn’t last very long.
I accidentally put ABS in my extruder and after cleaning the nozzle assembly out to put in PLA again I snapped the thread off the part connecting the nozzle with the cold barrier and the heating block.
Anyone know where I can get a replacement for it? The printer is a k8200, also known as the 3Drag…
I live in Austria, btw.
The Velleman printer is a proprietary design, so you’ll need to look for a Velleman replacement part. The place where you bought the printer should be able to order them, if not, ask Velleman directly.
Or, of course, you could take the high road and upgrade to a RepRap-compatible hotend.
That’s exactly what I’m doing. Just ordered one.
You should be able to solder it back together with some silver solder. Might b e worth a try eventhough you are getting a replacement part. that way you would have a spare.
Hi Robert, I’m Boris from open-electronics. We create 3drag design. We sell the extruder part
http://store.open-electronics.org/Extruder_heating_section
But use the contact form if you need only the broken part. 
Probably not a very good idea as the stuff going through it melts at the same temperature as the thing it’s going through …
Silver solder is for high temperatures
Whoops, sorry, I just answered on the wrong comment 
of course it is. I’ll probably just have a spare done on a lathe though…
Can I use aluminum or do I need brass?
Soldering could work, but likely introduces a weak spot that is bound to break eventually, especially when cyclic mechanical loads (retracts) and thermal cycles are applied.
Looking at the assembled extruder, i see no reason why an aluminum replacement shouldn’t work. I’d even expect an improved performance due to the higher thermal conductivity.
+Robert Tusa that ia probably the best solution anyways. If you have access to a lathe and the right tools to manufacture nozzes. In that case I might contact you for a few parts myself - if the one manufacturing for you wants to earn a few extra €, I am located in Austria as well.
Replacement part by far is the best but JB weld epoxy may be an alternative. Be sure to get the engine block stuff
@Don_Grunloh JB weld will not hold up in a hotend. Plus, it’s hard to get hold of If you’re not in the US.
@Robert_Koppl sure, no problem. I’m actually going to visit him next week, so if you have drafts, send them to r.tusa@live.com and I’ll Ask him what he charges.
Sad thing is: with the right hex stock, and a tap, I could turn them out by the dozens. It’s one of the things lathes are excellent for. First one takes 20 minutes, then next 20 average 5 minutes a piece.
