Custom E3D v6 heartbreak in MK3
Hi Guys,
is this information rather new? "E3D V6 is market-leading all metal hotend well known for its high-temperature performance. MK3 uses a custom heatbreak developed together with E3D. It has proven well its reliability in our Multi Material upgrade and continues to deliver great performance in surprisingly small form factor."
So what does this mean? Could one not buy a replacement E3D v6 hotend at E3D if something breaks? What are the differences? That would be very interesting to compare the MK2S hotend assembly with the MK3 hotend assembly. Or it is done so that the MM Update for MK3 does not have to contain another hotend - saving costs.
My guess is the changes are made for an increased flow rate - but what do I know:-)
But the standard nozzles do still fit, right?
Re: Custom E3D v6 heartbreak in MK3
I understand that the Mk3 Custom E3D hotend is the same as the MMU Hotend,
the internal holes are slightly smaller to better direct the filament and they are polished to reduce friction and potential for blocking.
additionally the PTFE Guide is smaller in internal diameter than the standard PTFE Guide
If you have a total failure of your E3D hotend I expect a standard hotend would make no noticeable difference in the Mk3 single filament application.
if you damage the PTFE Liner, you can replace it with new liner from Prusa, or https://www.captubes.com/ the Capricorn XS is probably the best PTFE option.
the genuine E3D nozzles are all compatible with the Custom Hot end...
I expect the reason that Prusa is using the custom hot end on the Mk3, is simple logistics.
they need the custom hot end for the MMU, if they stock different hot ends for the Mk3, then they need a different storage area for each hot end type, and they need to ensure that the hot ends dont get mixed up, they need to manage stock levels on the different hot ends, which probably means that the additinal management costs outweigh the difference in wholesale cost of the standard and custome hot end... and simply stocking the custom hot end simplifies stock control, and removes the possibility of wrong supply
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: Custom E3D v6 heartbreak in MK3
The primary difference between the original e3D v6 is that the heat break "wasn't to the prusa standards", which made the biggest impact for the MMU upgrade. HOWEVER, be aware that if you buy the traditional e3D v6, you will have to find the custom plugin that prusa has for the einsy rambo mobo, because it is not standard with the e3d v6. Additionally, they have all custom wiring that makes it a perfect fit for the mk3. This is a pretty bothersome selling point considering I've had to go through all of this. I think prusa should offer their hotend, because otherwise the only company I know that sells it is a Canadian company, https://www.voxelfactory.com/collections/original-prusa-parts/products/original-e3d-v6-1-hotend-for-prusa-i3-mk3 which they sell for about $100 USD. So you are either having to dish out quite a bit more for the prusa custom hotend or have a major wiring headache with a traditional v6. Either way it is a real pain with this printer that is otherwise so awesome 😳
Re: Custom E3D v6 heartbreak in MK3
Prusa does sell the MK3 hotend- and it's fully assembled. It's in their store for $79 USD.
Re: Custom E3D v6 heartbreak in MK3
Or you just pick up a few connectors, cut the wires a few inches from the hot-end, hook them up through the connector, and if anything fails, you simply replace that, put a new connector on the wire, plug it in, and you are done. 😉
(PS: doing things like that, MAY void your warranty... just stating the obvious)
Hi, I'm Sean. I used to work on CNC machines.
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Re: Custom E3D v6 heartbreak in MK3
Or you just pick up a few connectors, cut the wires a few inches from the hot-end, hook them up through the connector, and if anything fails, you simply replace that, put a new connector on the wire, plug it in, and you are done. 😉
(PS: doing things like that, MAY void your warranty... just stating the obvious)
I agree, this doesnt sound like anything a wire cutter and soldering iron wont fix in a few min.
Re: Custom E3D v6 heartbreak in MK3
I did that on my mk2 mmu
Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: Custom E3D v6 heartbreak in MK3
aha so the PRUSA V6-hot-end has not the standard E3D-connectors?
I guess that should not be a big issue. It is not a big job to solder the proper connectors .. but good to know.
Other question. I noticed there are E3D-V6-hotends that use 12V and some 24V. As the MK3 uses 24V, can I assume this hotend is 24V also?