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PETG at 600mm/s on my Ender 3
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Can you show what the finish of the finished piece is like?
Still need better cooling. I think that will help the top layers. Some of the layer lines are a little bit wobbly because I need a better hot end mount.
https://i.imgur.com/w0sCUIZ.jpeg
https://i.imgur.com/4BCIS2U.jpeg
I have some I printed today that look better. I'll post them later today. Still tuning it, so they're not perfect, but not bad for pumping a 6-7 hour print out in an hour.
Can you do a bend test to see their strength?
I'd have to make a rig to do a bend test on the part that's being printed here. It would take a couple hundred pounds to snap it, I'm sure. Infill didn't show any major under extrusion issues.
I meant just a normal hand bend test was fine. I always thought petg needs slow speed or it will be brittle and is easily snapped
You know Petg has less tensile strength then pla right?
It’ll look like dookie. Most things printed at this speed do. Layer adhesion will be trash too.
What experience with speed printing do you have that makes you say this?
I have an Ender max that has printed at 50k accel and over 200mm/s. I stopped pushing it further because it’s just diminishing returns and I don’t like prints that look like dookie as a trade off for speed. I also have a coreXY with an experimental motion system that blows my Ender max out of the water.
PETG is not a material that performs well when printed fast. It’s just characteristic of the material that you cannot change. The same part printed at 60mm/s will not only look better, it will be stronger and it will be more dimensionally accurate. This isn’t even arguable otherwise.
The prints holding this together look like dookie too… if that’s what your into then that’s perfectly fine, but my answer is accurate and factual.
It's arguable. PETG doesn't have to be printed slow.
I'd rather see the spool going lol
I got a video of that yesterday. I'll make some content with it today.
100RPM
So the next mod is putting it in a vacuum to remove air resistance?? XD
This is awesome and I'm jealous
Don't tempt me
tempt. tempt. tempt.
Wouldn't that also reduce the effectiveness of all cooling that's happening? You would need to water cool the hotend and your prints won't be cooled at all.
Didn't bring logic into this. This is Reddit, we have rules! -totally stole this
Impressive
Very nice. Let's see Paul Allen's printer.
what acceslarations are you using?
28,000. It'll go above 150k, but I haven't pushed that during a print.
jeez, mine has issues with 10k, belt tightened perfectly but it doesn't sound happy with 10k... I have E3 v3 se for context
I still need to do the frequency tuning on my belts.
Did you print a mod to tighten the belts?
Stock belts and klipper?
no I did not print mods, do you have a link to those by any chance? kipper not yet, currently have set up Octaprint on rp5.
Tell us your magic tricks :)
Is there a list of the mods/upgrades for this? Wth steroids did you use?
Upgrades are:
Klipper, running the Bleeding Edge V2 branch of Danger Klipper. I modified Limited Cartesian to be Limited CoreXZ for separate X, Y, Z top speeds and accelerations. This has been merged into Danger Klipper, you're welcome. 😄
BTT SKR Mini E3 V3 main board
Custom Raspberry Pi Pico external driver expansion board with
TMC5160T Plus drivers for each axis, running at 60V.
V6 Style hot end
Stacked CHC Volcano Pro hot ends that are coupled by Mellow Labs Supervolcano adapters.
Triangle Labs melt Zone extender between the two hot ends and at the end of the last hot end
Orbiter 2.0 Extruder
CR Touch Auto bed leveling
Voron Switchwire X and Z axis.
Modified to be AWD (four motors, 2 X and 2 Z) 2.3A per motor NEMA 17. Getting modified even more soon.
Y axis is my custom design:
five 6mm belts
8mm drive rod held in place by 608ZZ bearings
Two 4A Nema23s.
LH Stinger Carbon Fiber Bed with 200W Polyimide bed heater (weighs 500g)
Original 24V power supply and a 60V 20A power supply.
Properly loaded sorbothane feet
Full Linear rails
Damn, that's a weeks worth of googling right there, you're definitely in the right hobby!
I started in 2014 with a self sourced Prusa i3 RepRap. Liked it enough I went and got an engineering degree. Put the hobby on hold during school and it got reignited recently.
Are you on Klipper yet?
Only sonic pad. I've been in enough rabbit holes now to dip my toe in and make a conscious decision about how far I want to jump in lol. I just started a month ago with an ender 5 plus, so I'm still adjusting expectations like when I see "600mm/s easy!!" Now I realize that's with a ton of upgrades that I haven't learned about yet. I was thinking of taking one of my servers, putting klipper on and that and connect via USB when this isn't enough. Skr mini is probably next ....
I'm scared to switch. I have a 2 machines. One is stock bios. The other is self made BL touch bios and run off a optopi on a raspberry 3.
How many hours did it take you to move to clipper?
How well does it handle retraction and stringing? I'm constantly fighting it on my PET prints.
I've learned how to really dial in PETG. Stringing is basically non-existent.
Increase your travel speed.
Do you use retractions at all? What settings do you use for them? Or are you just moving that thing so fast it doesn't have enough time to string?
Dry your filament real good and print from a dryer. That seems to do away with most stringing then whatever is left can be dealt with via settings. At least thats what works for me on all of my printers.
I run at 300-500 on my converted v2….have seen it at 700 though
This is amazing!
I remember a post a while back where some dude was claiming over 1000mm/s on his, whilst moving half the actual speed of yours.
Dude was running numbers on max speed (which was also exaggerated) and didn’t take acceleration into account, argued with everyone until he was blue in the face.
This is some true Ender speed right here.
Was probably me in that video too. Haha
I’d look back because I am super curious but that was months ago.. If it was you, glad you are getting there mate!
This thing is flying.
I am kindof impressed.
man, that shit it's not an ender 3 anymore XD
god damn!
its like a robocop or an ender t3000 XD
its a spool killer!
I have been calling it the Ender 3 VE for Voron or VZBot Eater.
Much respect to both Vorons and VZBots.
"ender 3"
if you don't mind me asking: what upgrades have you made to get to this level of speed and quality?
ive been 3d printing for almost a year now and am trying to turn my ender 3 into a bed slinger before i decide to invest in something like a Voron, this way i can further my knowledge and have an overall better experience with sourcing/building myself a Voron in the future (when i dont work at minimum wage 🤣)
A hot end, new extruder and Klipper can basically transform an Ender 3 into a different printer. Also auto bed leveling.
And in terms of what upgrades I've done, basically all of them. There is a list one of the posts, I'll see if I can find it.
If you aren’t already, make sure to dry PETG I hate to say it but it’s so crucial to printing normally but at high speeds you’ll get so much more over/inconsistent with extrusion if it’s wet
This looks awesome btw! Well done with your mods!!
Might be the issues with my top layer. I'm getting ridges, despite the flow being calibrated. If I print slower they go away.
how long did it take to print those 3 pieces?
I printed four of the motor mounts in an hour.
i have 3 enders. what would you say would be the best and most cost effective upgrade to speed up prints ? say 100$ upgrade per each printer? also something that would be easy to do?
Klipper Better Hot End Better Extruder
cant i brick it by uploading klipper?
Do you want cheap? https://print.piffa.net/
saweet! gonna work on improving my enders and speeding them up a bit. thanks bro.
what percentage of that printer is actually an Ender 3
Two end stops and part of the frame.
Ender 4 just dropped
What at what on what?! That's sick for petg on that machine, congrats!
Can we even legally call this an ender3 anymore? I think at this point you own an ender4
i have been thinking about upgrading to way rails. do you find that they are better? everywhere i looked, people say they are worse, but i've begun to believe that people are just bolting them to their ender and not ensuring that the rail is flat.
They're not worse, definitely better. Lots of other upgrades I'd do first tho. Not much of a use if you don't upgrade motors and drivers first.
What kind of sorcery is this? Heatbreaker does not have cooling?
Looks like fan for heatbreak is there in a small black box and fans for part cooling are mounted to x gantry.
Makes sense. Maximum carriage weight removal lol
Yes. I'm going CPAP soon though. Aux fans don't work on the side away from the fans.
I have on OG ender 3 sitting around collecting dust. This might be a fun project for it.
Time for a BoM and build guide and to share the STLs?
Looks like it’s coreXZ, did you design that yourself or use one already released somewhere?
It's a modified version of the Voron Switchwire. Modded to be AWD.
Y axis is custom five belts driven by a drive rod.
The Switchwire parts are going to get modded even more soon.
I would love to take a look at your printhead/carriage stl files, if you don't mind sharing. I see you posted a list of upgrades already (much appriciated)
I'm actually in the process of changing them. I was going for minimalist lightweight, and it doesn't work like I was hoping. The tool head moves way too much.
GitHub.com/honestbrothers/ender3ve
Thank you, much! I subbed to your youtube channel when you posted your speedboat here a couple weeks ago and am looking forward to more