Any personal experience with quality gain after upgrade to E3D V6 hot end?
Realy didn’t expect to get Haribo gummy bears within package from #E3D guys. But maybe it is a part of English humour and some hint for their continental customers. 
So, now to find a courage to upgrade from Ubis on my Printrbot… It is a bit painful process.
Which Printrbot?
We are a couple weeks away from the availability of the metal Ubis. It does offer improved accuracy due to extremely responsive heater core and almost no retraction… .3mm-.5mm. Smaller tips can produce mind blowing results.
Switching from a J-Head clone that came with my Rostock Mini to an E3Dv6 resulted in more reliable prints. I doubt it made any difference in quality which will require me to calibrate my printer better and tighten the belts.
@Brook_Drumm Been on the waitlist for the all metal hotend since a recieved my Printrbot a few weeks ago. I can’t wait! No 04mm nozzle? Might have to get both the 0.3mm and the 0.5mm tips then.
I presume that Haribo either give companies bags for free or at a massive discount as a way of doing cheap sample distribution. I’m always receiving them with orders from random companies for no reason.
I have Simple Metal kit (rev. F) with heated bed and after I had to solve defective parts (mainly bearing blocks) it runs OK (mechanically). But PLA printing quality is far behind expectation with overhangs, not precise surfaces etc. (I have tried almost every settings combination with Cura and Slic3r and several tips from forums also. Nothing solves all problems at the same time. It’s not the problem of filament.) Higher temperature ABS prints look slightly better, but I need PLA at first and suspect also thermistor is very inaccurate on my Ubis. As all metal Ubis hot end was not available and my Printrbot serves in the hearth of Europe, E3D V6 with widespread renomé is my choice. 
Can’t go wrong with E3D, especially if you’re coming from the ceramic Ubis
@Tomas_Vit I’m interested in this. I have the Simple Metal with Heated Bed. Please, please post pics of the process as well as any printed parts you needed for the mounting. Thank you!
Glad to hear various hot ends are doing the job! We are looking forward to seeing the community response on the metal Ubis hotend. It’s been on the Play since it launched and now on the plus when ordered from Printrbot.
The metal Ubis is $49 assembled and should compare extremely well to all comers. Looking forward to launching.
@Adam_Steinmark Here are detailed answers, how to enhance Simple Metal with E3D V6: http://thisoldspoon.blogspot.cz/2015/03/e3d-v6-hotend-on-printrbot-simple-metal.html?m=1
@Tomas_Vit Thanks!
@Adam_Steinmark And maybe this one will be helpful too: http://wiki.e3d-online.com/wiki/E3D-v6_on_Printrbot_Simple_Metal (I did not the upgrade yet so I do not know, if all steps are right.)
After many evenings of assembling, tests, disassembling, changing settings in several software tools, reading hundreds of forum threads I have to say E3D V6 upgrade can be a real nightmare if you don’t have the luck to hit the sweet spot for the 1st time. Even with respecting to all guides my hot end is jammed after every 30+ minutes (ABS or PLA). And I am not alone – forums are full of frustrated users with jamming hot ends. I am going to test https://youtu.be/EeodB0vf9Nk and then maybe return to oozy Ubis with terrible overhangs. By the way E3D V6 looks much more precise, but overhangs looks the same. Leaky.
Challenge: try the all metal “Ubis 13” available this Monday. $49. No ooze (.2mm-.5mm retraction). Much more precise, all parts user-replaceable. Could it be the E3D killer?
Bd
@Brook_Drumm I wish it was here few weeks earlier and with European distributor. But I will consider it.