E3D V6 Assembly : Prusa Mk3s Bear Upgrade

Key points -
1) Nozzle and Heat break must be tightened against each other inside the block
2) Gap between nozzle and block should be as less as possible. Maximum 0.2mm
3) Make sure nozzle doesn't bottom out while inserting it in the block before it tightens against the heat break
4) Always heat the hotend in order to remove or install any part in it.
5) No part can be opened or removed while the hotend is in cold state.
6) Always tight the nozzle while the hotend is at 280 degree celcius
7) Do not use excessive force to tighten the nozzle. Otherwise it can break
8) Always use collet clip in the collet in order to prevent ptfe from moving up and down
9) Keep correct orientation of the aluminium block i.e. both the heater and thermistor screw should be accessible from the bottom.
10) Properly tight the screws holding heater and thermistor while the hotend is hot at 280
11) Always use shorter side of allen key to fully tight the screws.
12) Be carefull not to strip head of the screws
13) Always use thermal compound on the heatbreak

[@knightsljx]

00:20 Components Introduction
1:53 Install screws into Heat Block
3:57 Install Nozzle
4:42 Install Heat Break
7:01 Hotend Cross Section
9:17 Install Heat Sink
10:37 Install Heater Cartridge
13:21 Install Thermistor
15:55 Heat Tightening the Nozzle
20:33 Install Heat Sock
21:45 Install PTFE

[@3dprintronics]

We really appreciate your support..thanks once again.

[@jonybech]

Thank you very much sir. Very well explained.

[@einarofferdahl5863]

One of the best videos I have watched in a long, long time. Thank you very much.

[@3dprintronics]

Thank you for your very kind words!

[@gargladdy]

Thank you for such a clear and easy to understand video! Seriously you did a great job of explaining everything (and that 3D printed slice was a great visual reference!)

[@3dprintronics]

Thank you for your inspiring words.

[@K6TJO]

Congrats on producing a highly effective and educational demonstration. Love the ginormous nozzle model!!!

[@3dprintronics]

Thanks a lot for your appreciation

[@techlabtmw9023]

@@3dprintronics Would you mind sharing STL files for the hotend model? I teach 3D printing to young adults at a large museum and this model would be perfect for explaining how a printer works!

[@3dprintronics]

@@techlabtmw9023 Hello please use the link below to get the stl files - www.prusaprinters.org/prints/489-e3d-v6-educational-hotend-section

[@techlabtmw9023]

@@3dprintronics Thank you very much for the link!

[@mykehdoom]

Thank you so much for this video.
I never even thought of laying the hotend on something like wood and heating it up to tighten the nozzle.

[@3dprintronics]

Thank you for your kind words. This is the most basic troubleshooting step which in our opinion every 3d printer user must be aware of.

[@knightsljx]

excellent video

[@3dprintronics]

Thank you for your kind words

[@patrickyork2975]

I am about to replace my heat end for he first time and this will be very useful. Thank you!

[@3dprintronics]

Thanks for your support

[@mrlogical07]

The cross section has the heater block upside down compared to how you said it should be.

[@3dprintronics]

Block shown in PLASTIC MODEL is only for visual purpose. Actual position of block should be as shown in the METAL parts assembly. Thanks a lot

[@iShootFast]

Best explanation I have seen. Great job.

[@3dprintronics]

Hello Rob ,thanks a lot for your appreciation.

[@spudgossie]

Very good explanation. I learnt a lot

[@3dprintronics]

Thanks a lot

[@Praecantetia]

This was very informative and helpfull for correcting my assembly. Thanks a lot!

[@3dprintronics]

Good to hear that cheers

[@halim1644]

Super specific explaination. ... certified engineer you are.. VERY GOOD. India have many great engineer., SUBS .. make more quality content as this !

[@3dprintronics]

Thanks a lot for your appreciation.

[@davoudtaghawi-nejad6780]

This is the best video on this topic.

[@3dprintronics]

Thanks a lot

[@mufitozulug913]

many Thanks for your information. It is very very helpfull.

[@3dprintronics]

Thank you for your kind words!

[@calaverilandia]

Thank you buddy!

[@3dprintronics]

Hello Sir, thanks a lot for your appreciation

[@emanprime3679]

Aren't you supposed to put the thermal paste on the thermistor and heater cartridge?

[@3dprintronics]

It is not mandatory..i have seen mostly slice engineering guys providing boron nitride for the same purpose. You can use it there is no harm in it, but for most cases it also works without putting thermal paste on heater and thermistor.

[@fpv_everyday]

Thank you. Very helpfull

[@3dprintronics]

Bela Andrei Szilagy Thank you for your kind words!

[@OneMinuteChris]

I replaced the hot end but now receiving a MINTEMP error

[@3dprintronics]

Mintemp error can occur due to few reason, you can read more about it on prusa website - help.prusa3d.com/en/article/mintemp-and-mintemp-bed_2169

[@michaelkorn2661]

STL for the big cross section of the E3Dv6?

[@3dprintronics]

Michael Korn Hi this is available on thingiverse by the designer named flowalistik. Will try and search for the stl and update.

[@salim.studio]

do you know if the e3dv6 that come with prusa mk3s have the thermal paste in the heartbreak?

[@3dprintronics]

The heat sink compound will increase the efficiency of heat transfer between the heatbreak and the hotend heatsink. We need the break (the top portion) to be as cold as possible so that the filament is not soft in this portion. That is why this heatsink compound is applied and this is also as per E3D manual. I think the Prusa hotends with the kit come unassembled. It is advisable to assemble them as per the E3D guide or you can also use this video as a guide. We assemble and use many hot ends in this way and they have always worked perfectly for our customers.

[@nathan118]

I just took my prusa hotend apart yesterday, and yes, it had thermal paste applied.

[@moreorlessme]

I have followed the steps but I am getting an ERR: MinTemp when I try to heat up the nozzle. I have tried two thermistors and I get the same error. Am I missing something? Do I need to reset the firmware in the printer or something?

[@3dprintronics]

Mintemp error can occur due to many reasons. Here is a very good article on Prusa website - help.prusa3d.com/en/article/mintemp-and-mintemp-bed_2169#:~:text=MINTEMP%20%2D%20problem%20with%20the%20hotend%20temperature%20readout.&text=This%20error%20can%20be%20caused,break%20in%20the%20thermistor%20wire.

[@MrJuuddss]

i follow this video thoroughly and once i install the hot end to my extruder and insert the filament i continually get a jam and the extruder clicks constantly what am i doing wrong??

[@3dprintronics]

Hello There can be many reasons leading to clogs in the hotend, if you can share some video or pics we might be able to help you out.

[@cristianopersi7953]

What Silikon heater cover is that?

[@3dprintronics]

It helps in maintaining a stable temperature of nozzle while the print cooling fan blows at full speed. It also keeps nozzle and block clean as the extruded plastic only sticks to the socks and can easily be cleaned. You can find more info on E3d website - e3d-online.com/products/v6-socks-pro-pack-of-3?_pos=4&_sid=f1df8dd2c&_ss=r

[@mahmoudzaefi2958]

thank you very much. it was perfect!
thanks. what is the material of that last objects (little black object and blue clamp)? is that ABS?
and could you give us the stl file of that to small object at the end of the video? i mean that blue and black small object.
Thanks,

[@3dprintronics]

Hello Mahmoud thanks a lot for your kind words. Black color part is called as COLLET and Blue color part as COLLET CLIP. Both the parts shown in this video are injection moulded and made of ABS. You can use printed COLLET CLIP in abs, but printed collet might not work as it needs to be a bit flexible to go inside the hotend.

[@mahmoudzaefi2958]

@@3dprintronics There is a filament called PETG, which has a little flexibility. I think that material can be used as well.
and do you have stl file for Collet and Collet Clip?
I saw many videos, but they did not use "Collet and Collet Clip"in a fundamental and complete way.
Thank you for your guidance.

[@3dprintronics]

@@mahmoudzaefi2958 It is better to buy collet and collet clip from E3D. Printed collet might not work. Collet clip stl you can download from guides.bear-lab.com/Wiki/Bear_FAQ'. We do not have stl for collet. Thanks

[@pepe6666]

great video. good content. shame about the sound but this is a nice clear explanation of how it works and will help me a lot with maintenance.

[@3dprintronics]

pepe6666 thanks!

[@dimitriecioraneanu3041]

that english ... but all in all good video

[@3dprintronics]

Dimitrie Cioraneanu thanks!