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Hello!
I'm looking for Hot end for Prusa i3
A friend told me this http://www.makergear.com/products/extruders is not well cooled. Is right?
I have a questions:
What is the difference with : http://3d-industries.myshopify.com/c...ucts/aluhotend and http://e3d-online.com/E3D-HotEnds/E3...l-Metal-HotEnd ?
http://e3d-online.com/E3D-HotEnds/E3...l-Metal-HotEnd is better than https://www.hotends.com/index.php?ro...&product_id=88
What is the best?
Thanks ,
Hi,
I started with the J-Head - and had bad experience. It was leaking plastik between the peek part and the nozzle. I tried to fix it and killed the thread. Changing the nozzle is a pain.
The I bought the E3D-Hotend with a 0,25, 0,4 and 0,6mm Nozzle, put in the Extruder and: I just forgot it! It´s printing without any problems since 3kg of PLA and 1kg of ABS. Even idling when it is heated up doesn´t lead to jamming. Sorry I can not help you with the comparison, one thing I can say: you will be satisfied with an E3D!
Kind regards
Manu
Hey.
I have a Jhead and got no problem at all, Probably now after 5 kilos of PLA and 1 kilo abs, never had a jam or whatever,
I am also looking for a new hotend, to get higher temps and such,
Not sure wich one atm, I think Aluhotend will be a decent hotend for the money tho, But i doubt it will be alot better then the Jhead,
E3D is pretty decent.
Many people don´t have any problems with the Jhead, however, it depends on the quality as it is an open source Hotend. I am pretty sure, mine came from china and the way it was drilled and machined was really bad. I just had bad luck with my supplier...
Manu
I too have a JHead that I got with my printer from Makerfarm. I've never had one jam or any trouble at all. I purchased a Magma head from Makerfarm at the same time and it jammed all the time so I took it off and I've never used it again. I am however interested in doing a dual-head retrofit and am interested in other heads and am glad to see the info above. But now I have to wait because Markerfarm is on the cusp of releasing a "rail" upgrade for the i3. If I buy heads now then they may not work too well in a month or so.
I know nothing about the heads but I do like seeing the built in heat sink and fan of the E3D-v5 HotEnd.
I'd still like to see discussion here about the merits of different heads though.
Hi,
in the new Reprap Magazine Issue 3 there is a comparison of some Hotends - including the E3D/Jhead:
http://http://reprapmagazine.com/issues/3/
Maybe you can find any helpful information!
Manu
I've used both, but the E3D is just wonderful except in one aspect, the stock heating block and nozzle are too big and too close to the printing zone, so I had no luck printing parts with overhangs or pointy sides (like the teeth of a gear), so I took the hot end of the JHead and installed it on the E3D stainless steel barrel and heatsink.
Together they are amazing, the JHead nozzle is taller and the heating block smaller so there's much less heat being transferred to the part being printed, so no more corners curling up or thin parts being deformed. The filament barrel with the very thin neck and the heatsink work fantastic, specially since I made one other little modification, I drilled a slanted hole on the first heatsink fan, so that air from the cooling fan is directed down and around the barrel neck; the heatsink fins are very wide so I suspect a lot of heat is trapped between the bottom one and the top of the heating block, this small vent blows the hot air away from that area and I believe must help a lot to reduce the temperature gradient from the melt zone up.
Incidentally, right this instant I'm testing one last tweak in my extruder, I use a direct drive extruder and I was having some problems with the knurled gear, everynow and then it skipped when "pushing the envelope", I tried a MK8 drive gear (1.75mm PLA by the way) and it was even worse. So I just took a 5mm shaft coupler from my parts box, mounted it in my drill and grinded a groove around it, then I mounted the coupler in a 5mm shaft mounted on ball bearings and used the drill with a M3 tap to cut threads on that groove, because the tap rotates the coupler as it cuts it the threads are in fact parallel. This new drive gear works amazingly well now, absolutely perfect grip.
I have a Prusa Nozzle V2 and im really satisfied with the result. And why not stick with prusa when you have the i3 ;-)
Read more about it in the latest reprap magazine
Quote:
Originally Posted by Protoprinter
Hi , thanks for all reply ,
But I still don't know what to choose....
The E3D , is not better because you can change the nozzle?
What is the best for printing quality ?
Thanks ,
I actually just ordered a E3D hot end because the j-head supplied with my MakerFarm i3 keeps jamming due to the PTFE tubing/lining warping/burning/deforming where nozzle connects to the PEEK body. It's quite annoying and I don't know if it's a design flaw or bad PTFE or whatever but having to change it out once a month due to heavy printing gets old very fast lol. So I went with the E3D with a 0.25mm nozzle and I'm quite excited for it to arrive sometime next week!
Is the liner only in the J Head 1.75mm unit of is it also in the 3mm Hot Ends? I cleaned my 3mm hot end out a couple of months ago and do not remember any liner? If so, do all 1.75 J Heads have the liner or are some just drilled to ~1.75mm and do not need the liner?
The 3mm one also has the liner in the makerfarm supplied jheads as far as I know.
Thanks Meo, we get our hotends from hotends.com and there is no liner. I guess different builders do it their own way?
Maybe, I don't know enough outside of MakerFarm unfortunately. But consider yourself lucky, the liner is tough enough to replace, to have to do that once a month is a killer for my fingers :(
Have you tried running without the liner?
Without the liner, the PLA just mets at the hot end and pools up the PEEK until it floods out and cools causing all sorts of problems lol. The liner is there to form a seal at the nozzle and PEEK while also guiding the filament down to the melt zone without bending etc.
10-4 maybe move the liner up slightly I realize the hot pool will still act on the seal area or replace with a metal liner,Quote:
Originally Posted by MeoWorks
In conclusion E3D or J head MkV?
Your choice and why?
What is the best?
I don't think you can go wrong with the E3D. If you're looking for a new hot end and have the extra funds available, go for it! I had to upgrade because of the constant issues with jhead hot end and once I receive the E3D, I can post a review about it. Personally, if you have a good jhead, then awesome, really no need to upgrade. As for which one is best? I personally think E3D is a step up.
Hello , i think Buy E3D .
But what I choice?
This (Direct)
http://e3d-online.com/E3D-HotEnds/1....-V5-Metal-Only
or this?(Bowden)
http://e3d-online.com/E3D-HotEnds/1....-V5-Metal-Only
Well what printer do you have?
It depends, Bowden is when your fillament isnt driven directly towards your hotend, Example if the Gear pushing the fillament is outside the printer(case)
Direct is when your Gears that drive the fillament is on your Hotend.
Is prusa I3
Since you don't know what a bowden setup is, I'll assume you have the standard Prusa i3, which will uses the direct version of the E3D.
The only real difference is that the bowden version has a tapped end to accept the pneumatic fittings. I went with the bowden version just in case I want to upgrade later down the line.