NEW E3D REVO hot end  

RE: NEW E3D REVO hot end

Don't know anything specific about Revo but if you don't change firmware won't that mean that you'll have to use the Prusa value for E max temp

RE:

kind of like people that cant work on their own cars, so they have to pay a premium  to have them fixed, if your proficient with nozzle changes you can change them repeatedly in about 2 min (realistically) without father issue.

Your assumption here is flawed. You seem to assume that people want to work on their cars but are incapable. Or that people want to spend the time/effort to be able to do nozzle changes like you do.  I certainly could learn to work on my car, and I certainly could do nozzle changes where I fiddle with the right alignment at the right temperatures and the right number of newtons.  But I choose to spend my time doing something else while someone changes my oil, and I choose to pay extra for a ecosystem that makes the nozzle changes foolproof.  I don't see why you're so adamant that people research what their workload would be if they didn't buy this product. It seems to be a nice product (and I'll know for sure in a few days when it arrives), and if people want to pay the extra for the convenience, I don't see why that chaps you.

@senexfaciens

Your assumption here is flawed. You seem to assume that people want to work on their cars but are incapable. Or that people want to spend the time/effort to be able to do nozzle changes like you do.

I don't believe so, I assume that people that bought a 3D printer at this price point (had they researched it) would know that it is not a fire and forget technology, you have to work on it or pay someone too, what I don't have to assume, since I've been here helping users on this forum both new, and professionals alike, is that not all of them looked before they leaped, and I'm not apposed to the REVO or it's design, or that it's not open source. Persons whoever you may be should understand when you decide to start 3D printing your going to have to learn to work on the machine's and the software.

I'm not chapped by it at all, I'm trying to bring awareness.

Regards

Swiss_Cheese

RE: NEW E3D REVO hot end

Like I stated earlier in this thread, I swap my nozzles almost every other day, as I see them as a tool to reach the best result (which might be finer details or less print time).

So yes, there might be people who like to tinker even more than me, and who might be younger without kids / family / job.
And nobody will take the old style nozzles from them, they will be able to use them as long as they want.

But I also don't use manual screwdrivers instead of cordless ones for bigger projects.
I also don't build my whole Linux environment from source code like I did 20 years ago with Gentoo.
If someone feels better if he writes this Gcode in a texteditor instead of using a slicer: you're welcome.

But there's no reason to make a religion out of it.

As I said above: A 3D printer is a tool for me. Like mill or a circular saw.
And as with my other tools, I avoided to buy the cheapest, because I hope for less tinkering and less problems.

So no, not everyone loves to swap nozzles, even if he's capable of doing it.
Please respect that. 😛 

RE:

I got the Revo Six Fully Loaded kit over the weekend. So far here are my thoughts...

1. Cleaner area because I no longer need the right tools for the job (wrench, socket wrench, something to hold the hot tools/nozzle)
2. Less worry about scratching the heat block (so easy to do with wrong wrench or holding it poorly)
3. Will never see my bad change attempt causing heat break to snap ever again 😀
4. Wire connection to hotend is very strong so less worry about wrench snipping wires (because no need for that tool)
5. Wire connection on back of extruder uses connectors so don't have to rewire everything (see attachment also they provide long wires had extra slack now)
6. Wire connection on back is bulkier due to connectors so need to wrap better
7. Less concern of dealing with hot stuff
8. More concern about being stupid, drunk and touching a nozzle while hot 😀
9. Less worry about tightness of nozzle causing slight ooze out on top of heat block
10. Print quality needs months more testing but looks good so far, didn't have to adjust z value
11. Nozzle is slightly slower to cool off (negligible).
12. Easier circuit board connection as the thermister wire doesn't have polarity or at least tab forcing in certain way.

Before this I used to change the nozzle once a week or more. So I was very used to the old way but this makes life more about printing which is a win in my book. Hopefully the print quality is on par.

RE: NEW E3D REVO hot end

Oh should mention one part really sucked (suck because I suck at it lol). Having to cut ptfe tubing since it doesn't use same size as classic hotend.

RE: NEW E3D REVO hot end

Well, I decided that I might as well order in a revo 6 kit, I was on the fence, but I’m looking forwards to using it and trying it out

I should see it by the end of the week.

As for improvements, we have seen progress over the last decade, this decade will be exciting.

I remember when we first got a CNC machine at work in the 90’s, we had to manually fit the bits via a collet assembly, the next CNC had a lever locking tool assembly and now we are seeing a lot of software driven automatic tool loading which reduces user human error from tool changing.

Eventually these features will work there way into in consumer printers at a price, it’ll be up to the consumers if they want to pay for it.

RE:

Posted by: @blissend

Oh should mention one part really sucked (suck because I suck at it lol). Having to cut ptfe tubing since it doesn't use same size as classic hotend.

I found a jig by vertigo235 that makes cutting to the new length very easy. 

https://www.prusaprinters.org/prints/22027-e3d-v6-ptfe-length-cutter-thing

RE: NEW E3D REVO hot end

Posted by: @ltlowe

 

Posted by: @blissend

Oh should mention one part really sucked (suck because I suck at it lol). Having to cut ptfe tubing since it doesn't use same size as classic hotend.

I found a jig by vertigo235 that makes cutting to the new length very easy. 

https://www.prusaprinters.org/prints/22027-e3d-v6-ptfe-length-cutter-thing

 

I just remixed a cutting/chamfer jig to cut the correct length PTFE tube for the MK3S+ (31mm): https://www.prusaprinters.org/prints/144155-ptfe-cutting-tool-for-prusa-mk3s-with-e3d-revo-six

RE: NEW E3D REVO hot end

Posted by: @sipple

 

 

Posted by: @ltlowe

 

Posted by: @blissend

Oh should mention one part really sucked (suck because I suck at it lol). Having to cut ptfe tubing since it doesn't use same size as classic hotend.

I found a jig by vertigo235 that makes cutting to the new length very easy. 

https://www.prusaprinters.org/prints/22027-e3d-v6-ptfe-length-cutter-thing

 

I just remixed a cutting/chamfer jig to cut the correct length PTFE tube for the MK3S+ (31mm): https://www.prusaprinters.org/prints/144155-ptfe-cutting-tool-for-prusa-mk3s-with-e3d-revo-six

Thanks sipple, I’ve got it printing at the moment, hopefully I see my Revo 6 today

RE: NEW E3D REVO hot end

mine was plug and play i bought several extra nozzels  4 and also got the other avl sizes   im 24 hours in a 70 hour print and its working okay

using mmu since its multicolor  and i just measured how for the ptfe tube was sticking out of my mk3s+ and then trimmed it to stick out the same amount no issues so far

RE: NEW E3D REVO hot end

I installed Revo's on my 2 MK3S+ printers.

I really want to love this system but it's been nothing but issues. 1st off, I installed this exactly as E3D has in it's docs. Performed a PID tune, reset my Z offset and was ready to go. If anyone has any input on the problems I'm describing, I'd love to hear them.

I've been printing on these printers for over a year. Mainly PETG and have had no issues other than the heater block leaking at the heat break after switching to the hardened E3D nozzles. Not terrible but an irritant... All of my prints have been as near to perfect as you can get. All the filament I'm using is new, coming right out of the vacuum sealed bag. Using Overature, Inland and Prusament PETG... all with the same results.

As soon as I installed the Revo's, I noticed far more oozing than I've ever seen before... as if the filament is just falling out of the nozzle. The stringing has been incredible and ridiculous. Under extrusion is very noticeable but I'm wondering of that isn't because there doesn't seem to be any pressure in the nozzle because of the extreme oozing. The actual print seems to be as brittle as hell and is sticking to the textured bed way harder than it ever has before... as if the PETG is being baked at a much higher temperature than the printer is telling me.

I use prusaslicer with the standard prusament PETG chosen with no modifications as this is what has worked perfectly for me for the last year. I did find that I can eliminate some of the oozing and stringing if I lower the nozzle temps by 10 deg but still have the other issues.

I guess I'm looking to see if anyone else has experienced anything like this and if I have something defective with the Revo's or if there is something else I'm not seeing here... I give these things another couple of days and then I go back to stock...

Thanks

RE: NEW E3D REVO hot end

you have a new thermistor, it is possible that the temperature is wrong(they are dumb sensors, not thermometers...), you say that the prints are brittle and seem baked. try a print with a lower temperature, see if that resolves your issues!

regards Joan

RE: NEW E3D REVO hot end

I had the revo heatercore die on me within 10 days, replacement arrived and it's temperature readings were way off, eventually fixed that by re-doing the wiring myself, it is great now but E3d have acknowledged several issues with these early units. If you are having issue contact E3d, there customer service has been excellent on this issue.

RE: NEW E3D REVO hot end

Can I ask what wiring you redid?

RE: NEW E3D REVO hot end

That was the connectors into the electronics box, they were loose when I got them, and I was having big problems getting this heatercore to work at all when it arrived until I sorted the wiring.

All that is fine now and in general the revo preforms great with any high temp material it's just the low temp PLA  with prints involving lots of short extrusions (like the benchy bridge section and chimney) when it gets funky.

As an experiment I cut down the speed of the heatsink fan to 33% (prusa defaults it to 50%) and that solved a lot of the issues, not perfect but passable. Problem is I can't leave it like that as I need more fan speed for ASA, etc.

RE: NEW E3D REVO hot end

I hate replying to myself.. lol
I hit these with my Flir camera... Temperatures are WAY off... Prusa reading 240, actual nozzle temp of over 270. No linearity in any of this as when heating up and passing 170 reading on the screen, actual temp is 286 and fluctuating... No consistency at all on either hotend in any way. Resistance readings are different on both heater cores and thermistors.

I contacted E3d and they are sending out replacement heater cores...

Note to self.... PETG oozing and extreme stringing as well as incredibly brittle prints that are impossible to remove from the bed = temps WAY too hot...

RE: NEW E3D REVO hot end

That’s interesting to know, I’ve got around 12 hrs on the revo now, I did the calibration, but I didn’t think to use the thermal imager i have to check the temps.

it might explain a few issues I’ve had since fitting it.

I decided to fit it while I waited for a new print fan to come in, after it failed near the end of a 36hr print. In hind sight, I should have waited until I finished this project, but it was too tempting to fit it while I had it apart to change over the fan.

did you order the revo through them or a retailer?

if I’m going to have an issue it will be in the next fortnight, as i have another 400hrs or so left on this project

RE: NEW E3D REVO hot end

I ordered the REVO directly from E3D.  I'm using the original hotend fan for my i3 MK3S+ and haven't noticed any noticeable temperature difference from the original hotend.  I've also not made any physical Z-axis calibration changes but have made about a 1+ mm Z-axis offset setup change.  Since installing the REVO hotend I've made numerous nozzle changes without any issue.  All seems to be going well with a few hundred hours of printing since the upgrade.

RE:

Hello,

Well seems a lot of us are having the same problems. 

Oozing, temps are way off. This started like two days ago, after two/three weeks of not so heavy printing. 

I did PID calibration, checked wires, checked the assembly, checked the resistance with a multimeter, etc. 

It even gets to the point i cannot unload the PETG because the temps goes up and down like made 220/270 and eventually the Prusa turns the heating off for precaution.

I already am in contact with E3D support let's hope the fact that i have ripped of the SN label doesn't break the support. 

I'll give more feedback.

Cheers