http://www.reprapdiscount.com/hotends/43-prusanozzle-original-by-josef-prusa.html https://reprap.org/forum/read.php?1,206341,206341#msg-206341 Sun, 08 Mar 2026 13:32:55 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,206341,249356#msg-249356 https://reprap.org/forum/read.php?1,206341,249356#msg-249356
The advantage that I see is that there is no junction within the melt zone where plastic can fill and cause jams. Additionally, I imagine that the polishing procedures (reaming and lapping I believe) that Jo applies to the interior of the SS nozzle are superior to that which is applied to the E3D SS heat break which would make the Prusa MKII nozzle less susceptible to jamming under more extreme conditions (ie. printing PLA with large retractions or printing within a heated chamber).

I guess the question is whether or not these advantages warrant the price difference.

Eric]]> RP Iron Man General Fri, 27 Sep 2013 18:38:59 -0400 https://reprap.org/forum/read.php?1,206341,249319#msg-249319 https://reprap.org/forum/read.php?1,206341,249319#msg-249319
Soon. :D]]> akhlut General Fri, 27 Sep 2013 16:51:52 -0400 https://reprap.org/forum/read.php?1,206341,249316#msg-249316 https://reprap.org/forum/read.php?1,206341,249316#msg-249316 www.thingiverse.com] )

However, those whose problem was caused by irregular (and eventually too thick) filament diameter will see no improvement, as MKII internal diameter has not change and anything thicker than 3mm will get stuck in the barrel.

With the addition of the cooling fins and the fan I guess now there is a large barrel section even after hours of printing and a well-defined and short transition zone. J-Head mount type comes in handy, and you can use it, for example with sgraber's compact extruder: [github.com]

New heater has a plastic cover that it is easier to strip. MKII is also very easy to remove for cleaning.]]> misan General Fri, 27 Sep 2013 16:45:27 -0400 https://reprap.org/forum/read.php?1,206341,247192#msg-247192 https://reprap.org/forum/read.php?1,206341,247192#msg-247192 has anyone experience with the new MKII nozzle?
PLA with or without fan?]]> flow General Fri, 20 Sep 2013 11:53:19 -0400 https://reprap.org/forum/read.php?1,206341,238645#msg-238645 https://reprap.org/forum/read.php?1,206341,238645#msg-238645 vegasloki General Thu, 22 Aug 2013 17:05:45 -0400 https://reprap.org/forum/read.php?1,206341,238447#msg-238447 https://reprap.org/forum/read.php?1,206341,238447#msg-238447 -------------------------------------------------------
> vegasloki Wrote:
> --------------------------------------------------
> -----
> > Unboxing, meh.... (:P) Let's see some prints.
> I
> > just ordered an Aluhotend from 3D Industries AU.
>
> > I'm curious to see how it works.
>
>
> I just got one to, Im still using the
> budaschnozzle style hotend.
>
> Did you aluhotend come with a ptfe liner?
> I wanted to know if we can use it without the
> liner so we can crank it upto 280-300c

if you take the liner out you'll have a 4mm bore in the thermal barrier and you won't be able to extruder properly if at all]]> thejollygrimreaper General Thu, 22 Aug 2013 06:32:42 -0400 https://reprap.org/forum/read.php?1,206341,238351#msg-238351 https://reprap.org/forum/read.php?1,206341,238351#msg-238351 -------------------------------------------------------
> Unboxing, meh.... (:P) Let's see some prints. I
> just ordered an Aluhotend from 3D Industries AU.
> I'm curious to see how it works.


I just got one to, Im still using the budaschnozzle style hotend.

Did you aluhotend come with a ptfe liner?
I wanted to know if we can use it without the liner so we can crank it upto 280-300c]]> nechaus General Wed, 21 Aug 2013 21:24:05 -0400 https://reprap.org/forum/read.php?1,206341,238306#msg-238306 https://reprap.org/forum/read.php?1,206341,238306#msg-238306 vegasloki General Wed, 21 Aug 2013 16:28:09 -0400 https://reprap.org/forum/read.php?1,206341,237986#msg-237986 https://reprap.org/forum/read.php?1,206341,237986#msg-237986 :)
[sloreprap.eu]]]> weirdgod General Tue, 20 Aug 2013 17:14:02 -0400 https://reprap.org/forum/read.php?1,206341,236830#msg-236830 https://reprap.org/forum/read.php?1,206341,236830#msg-236830 -------------------------------------------------------
>
> So if you have been struggling with the nozzle you
> can try the fan duct
> [www.thingiverse.com] (mine is
> open on the top due to the way I am mounting it on
> the compact extruder).

Nice job.(tu). I had a duct from an i2 build but it didn't get as close to the heater block as yours does.]]> vegasloki General Fri, 16 Aug 2013 17:00:06 -0400 https://reprap.org/forum/read.php?1,206341,236808#msg-236808 https://reprap.org/forum/read.php?1,206341,236808#msg-236808
A side effect is that now I can print almost 40C cooler than before without any problem (before I was printing at 285C).

I know that some people have been printing ABS fanless. For me it was not possible with any of the filaments I threw at the nozzle. Just a fan cooling the top half of the nozzle and mounting plate did not cut it either.

So if you have been struggling with the nozzle you can try the fan duct [www.thingiverse.com] (mine is open on the top due to the way I am mounting it on the compact extruder).]]> misan General Fri, 16 Aug 2013 15:14:33 -0400 https://reprap.org/forum/read.php?1,206341,234183#msg-234183 https://reprap.org/forum/read.php?1,206341,234183#msg-234183 -------------------------------------------------------
> lajos Wrote:
> --------------------------------------------------
> -----
> > bobc wrote:
> > > Good grief.
> >
> > Haha, yeah, talk to me about it. You thought
> > calibrating your printer was hard, try keeping
> > some sub-ten year olds out of trouble.
>
> Sorry, you totally missed the point. Your
> patronising advice about parenting is irrelevant,
> and I am really not interested.

No, you missed the point. I was just pretending that you were not turning this into something it wasn't meant to be.]]> lajos General Fri, 09 Aug 2013 11:40:23 -0400 https://reprap.org/forum/read.php?1,206341,234079#msg-234079 https://reprap.org/forum/read.php?1,206341,234079#msg-234079 -------------------------------------------------------
> bobc wrote:
> > Good grief.
>
> Haha, yeah, talk to me about it. You thought
> calibrating your printer was hard, try keeping
> some sub-ten year olds out of trouble.

Sorry, you totally missed the point. Your patronising advice about parenting is irrelevant, and I am really not interested.]]> bobc General Fri, 09 Aug 2013 02:54:51 -0400 https://reprap.org/forum/read.php?1,206341,234049#msg-234049 https://reprap.org/forum/read.php?1,206341,234049#msg-234049 > Good grief.

Haha, yeah, talk to me about it. You thought calibrating your printer was hard, try keeping some sub-ten year olds out of trouble.

vegasloki wrote:
> Comparing this to raising kids is specious

No worries I can do grandparents, too.

Tomorrow you call your kid to let your grandkids sleep over this weekend. He/she tells you, that you have already discussed this, they are too young. So tomorrow night you decide to go over to vegashiki grandpa to fume over the situation, armed with some rum, or cigars, or whatever you old folks' body can still handle. You ring the bell, and your granddaughter opens the door, in pjs, ready to go to sleep. You blow the fuse, to which vegashiki grandpa says:

-vegasloki, we are adults. you know " In the adult world things like this aren't black and white."]]> lajos General Thu, 08 Aug 2013 23:10:08 -0400 https://reprap.org/forum/read.php?1,206341,234025#msg-234025 https://reprap.org/forum/read.php?1,206341,234025#msg-234025 -------------------------------------------------------
> Not sure if you have kids or not, if you do, you
> know that an all or nothing policy is absolutely
> essential. Either both kids are allowed to have
> ice cream or neither. Otherwise you plant some bad
> seeds that will poison your family in the long
> run.

I have grand kids, does that count? Comparing this to raising kids is specious. In the adult world things like this aren't black and white.]]> vegasloki General Thu, 08 Aug 2013 19:38:05 -0400 https://reprap.org/forum/read.php?1,206341,233971#msg-233971 https://reprap.org/forum/read.php?1,206341,233971#msg-233971 -------------------------------------------------------
> Not sure if you have kids or not, if you do, you
> know that an all or nothing policy is absolutely
> essential. Either both kids are allowed to have
> ice cream or neither. Otherwise you plant some bad
> seeds that will poison your family in the long
> run.

Good grief.]]> bobc General Thu, 08 Aug 2013 16:17:34 -0400 https://reprap.org/forum/read.php?1,206341,233958#msg-233958 https://reprap.org/forum/read.php?1,206341,233958#msg-233958 -------------------------------------------------------
> Sanjay was quite upfront about his commercial association

So being upfront allows one to break the rules? If I tell you I'll steal your laptop that will make it ok?

> and has tried to keep the topic on development

That thread is not about development. Let's not kid ourselves. It was an advertisement and then turned into customer/technical support.

> (Ohioplastics) would probably be quite happy to sabotage any thread related to Prusa's work

Sure, the guy can be ridiculous. But if you look back, Sanjay also chimed in on this thread which resulted in some Jo Prusa jabbing. So so far the only difference I see between ohioplastics and SanjayM is style, although if I add the animating GIF in Sanjay's E3D ad, even the style points get equalized.

> I think a blanket "all or none" policy is unnecessarily, it only takes some common sense to see who are adding value and who are merely doing promotion

Not sure if you have kids or not, if you do, you know that an all or nothing policy is absolutely essential. Either both kids are allowed to have ice cream or neither. Otherwise you plant some bad seeds that will poison your family in the long run.

If Sanjay's commercial thread is allowed in general, so should be ohioplastics' (even if he's semi-ridiculous).]]> lajos General Thu, 08 Aug 2013 15:38:51 -0400 https://reprap.org/forum/read.php?1,206341,233937#msg-233937 https://reprap.org/forum/read.php?1,206341,233937#msg-233937
I think a blanket "all or none" policy is unnecessarily, it only takes some common sense to see who are adding value and who are merely doing promotion, and I think the moderators are quite capable in that regard. They may also recall that Ohioplastics used the forum to launch an attack on Jo Prusa over some perceived slight, and he (Ohioplastics) would probably be quite happy to sabotage any thread related to Prusa's work. He's done a pretty good number on this thread, anyway.

It would be nice to get back to the technical discussion if possible.... even if the conclusion is that the E3D design is superior.]]> bobc General Thu, 08 Aug 2013 14:29:26 -0400 https://reprap.org/forum/read.php?1,206341,233900#msg-233900 https://reprap.org/forum/read.php?1,206341,233900#msg-233900
I hope the admins can add it as you suggested, the structure is very good. I would even consider a sub-forum «Hotends sales/trading» in this group.]]> woodencase01 General Thu, 08 Aug 2013 11:26:26 -0400 https://reprap.org/forum/read.php?1,206341,233885#msg-233885 https://reprap.org/forum/read.php?1,206341,233885#msg-233885
Ito be honest, I'm not sure. I was looking at the Plastic Extruder Group, but that seems like such a mishmash. Besides, it's for extruders and not hotends. :(

Come to think about it hotends are a pretty specialized item, one that has been pretty well ignored by the forum structure given how important they are to the machine. I can understand why - there were very few people working on them given their specialized nature. Maybe we should petition for an entire hotends forum with sub-forums for specific things - General Hotend Discussion, Hotend Development, J-Head, QU-BD, E3D, Budaschnozzle, Prusa, Makergear, DIY/Homebrew, etc. It could be a real plus to finally distill some of the hotend issues into one place instead of random threads in other forums.]]> akhlut General Thu, 08 Aug 2013 10:20:51 -0400 https://reprap.org/forum/read.php?1,206341,233884#msg-233884 https://reprap.org/forum/read.php?1,206341,233884#msg-233884
elgambitero Wrote:
-------------------------------------------------------
> woodencase01 Wrote:
> --------------------------------------------------
> -----
> > I don't know if anyone have seen this picture,
> but
> > it looks exactly like the E3D to me:
> >
> [secure.flickr.com]
>
> > 7/in/photostream/
> > You can expect it to be a littler costlier, when
> I
> > see all these grooves in this aluminum rod...
>
>
> Looks like the new version of prusanozzle is
> basically an E3D nozzle with the prusanozzle heat
> block.]]> cannonpr General Thu, 08 Aug 2013 10:00:46 -0400 https://reprap.org/forum/read.php?1,206341,233880#msg-233880 https://reprap.org/forum/read.php?1,206341,233880#msg-233880 -------------------------------------------------------
> But here's an idea: Why is there no sub-forum
> specifically for hot ends? That could eliminate
> some of the "clutter" in General.


The "Plastic Extruder Working Group" subforum should be fit for that, but its name doesn't make it clear for beginners, and it's also far from the top of the page, so people don't use it much for hotends discussions.

Also it's more about R&D than support, so I support your request of a new "hotends" subforum. Where should it be located ?]]> DeuxVis General Thu, 08 Aug 2013 09:39:17 -0400 https://reprap.org/forum/read.php?1,206341,233870#msg-233870 https://reprap.org/forum/read.php?1,206341,233870#msg-233870
Then it became a support thread, where those who bought them could share their experiences/opinions about the nozzle.

Also, to say that Prusa 'dropped off the face of the earth' isn't really fair. He's never really been very active on these forums.

[forums.reprap.org]

28 posts in 3 years, the majority of which are in this thread.

Disclaimer: I don't work for/with Prusa or any other 3D printing firm or service. I have no financial interest in the Prusa nozzle, or any other piece of equipment out there that is for sale.

But here's an idea: Why is there no sub-forum specifically for hot ends? That could eliminate some of the "clutter" in General.]]> akhlut General Thu, 08 Aug 2013 09:12:24 -0400 https://reprap.org/forum/read.php?1,206341,233862#msg-233862 https://reprap.org/forum/read.php?1,206341,233862#msg-233862
So then why can't ohioplastics post his advertisements? If you look back up a bit, you can see Sanjay plugging his hot end on this thread also, on top of being allowed to advertise in general. What Sanjay's doing is just as sneaky, but he gets away with it.

It should either be allowed for all to post advertisements in general, or should not be allowed for any.

There are sections of this forum for development and for advertisement.]]> lajos General Thu, 08 Aug 2013 08:47:11 -0400 https://reprap.org/forum/read.php?1,206341,233839#msg-233839 https://reprap.org/forum/read.php?1,206341,233839#msg-233839 -------------------------------------------------------
> I don't know if anyone have seen this picture, but
> it looks exactly like the E3D to me:
> [secure.flickr.com]
> 7/in/photostream/
> You can expect it to be a littler costlier, when I
> see all these grooves in this aluminum rod...


Looks like the new version of prusanozzle is basically an E3D nozzle with the prusanozzle heat block.]]> elgambitero General Thu, 08 Aug 2013 07:02:16 -0400 https://reprap.org/forum/read.php?1,206341,233741#msg-233741 https://reprap.org/forum/read.php?1,206341,233741#msg-233741 -------------------------------------------------------

> These threads are really annoying, abusive to the
> rules of the forum and should not be allowed in
> "general". They should go to "for sale" or "new
> product announcements" or "hotends".

If they are annoying you don't read them. I think Sanjay's thread is a great example of developing an open hardware product and refining it through user feedback. Very few have the tooling to make a hot end and those that sell hot ends do a service to the community particularly when they are involved in sharing information on how the parts work as well as having an open dialog for others to follow. Case in point the latest Prusa hot end which is now pictured with the features and implementation.

In a community where you sell atoms and give away bits the line between spam and information isn't so black and white. To develop ideas one must be free to share that information. In the case of Sanjay, someone that has contributed positively to the community, is going to be viewed in a different manner than someone else that might be abrasive or rude at times. Just as in meatspace, manners matter as does how something is stated, not just what it might be that is stated.]]> vegasloki General Thu, 08 Aug 2013 00:42:03 -0400 https://reprap.org/forum/read.php?1,206341,233728#msg-233728 https://reprap.org/forum/read.php?1,206341,233728#msg-233728
In all fairness I'm finding a lot more bot spam lately and have been reporting as much bot spam as i can find. it is really ramping up. Then to deal with someone that does not know he is spamming? Get real!!

at the very least these people should be contributing something, rather than just linking their product. or asking for feedback. Something that merits discussion.

ohioplastics, I think it is a courtesy that your posts have not been deleted yet....


say something intelligent in your posts, rather that being biased towards your products.

If anything it may be about time to lock this thread. it is hard to search thru anyways and almost 10 pages long.]]> jamesdanielv General Wed, 07 Aug 2013 23:12:13 -0400 https://reprap.org/forum/read.php?1,206341,233726#msg-233726 https://reprap.org/forum/read.php?1,206341,233726#msg-233726
To ohioplastics's point there are at least two other vendors who advertised their hotend in this thread (even if he's saying it in a semi-ridiculous way).

There are also other threads in the general forum that are adverts, for example the E3D hotend released one (and that one goes overboard with the animating GIF :)-D in the subject). The first sentence of the post is:

This post blurs the line a little between information and advertisement - I really don't want to spam, but...

These threads are really annoying, abusive to the rules of the forum and should not be allowed in "general". They should go to "for sale" or "new product announcements" or "hotends".]]> lajos General Wed, 07 Aug 2013 23:00:58 -0400 https://reprap.org/forum/read.php?1,206341,233710#msg-233710 https://reprap.org/forum/read.php?1,206341,233710#msg-233710
[www.hydraraptor.blogspot.com]0

Edit: John 8:7
Let ye who is without sin cast the first stone.]]> Anonymous User General Wed, 07 Aug 2013 21:05:55 -0400 https://reprap.org/forum/read.php?1,206341,233702#msg-233702 https://reprap.org/forum/read.php?1,206341,233702#msg-233702 [secure.flickr.com]
You can expect it to be a littler costlier, when I see all these grooves in this aluminum rod...]]> woodencase01 General Wed, 07 Aug 2013 20:42:50 -0400