RR 3.1 500, First print problems
Trying to print 20mm cube in petg for first print…. I’m familiar with Prusa Slicer so opted to use Superslicer for the RR, set up superslicer per the instruction (custom g code checked), slice the cube and load to machine and start print…. I’ve attempted quite a few different variations of settings in superslicer and seem to come up with same problem every time, as soon as the part fan turns on I run into serious adhesion problems, my last few attempts I have shut the fan off for all layers, but when the fan turns on for any bridging on the print, it messes the print up. I understand I can go as far as to shut the fan off for bridging but that does not seem right….. Any recommendations as to where to start with printing petg on these machines, I have no problems whatsoever printing with overture on my prusas with the fans on.
92 Replies
generous-apricot•2y ago
First photo shows one of the first attempts where the fan was turning on at layer 3, second photo shows where I have left the fan off until some final bridging at the top of the cube….. understandably the bottom 90% of the cube has some other issues that I will fine tune, but need to be able to finish a print in order to investigate.
What fan do you have and how high do you have it turned up?
generous-apricot•2y ago
4028, even running it at 2% causes these problems
Bridging percentage I need to go back and adjust….. did not realize this cube has bridging in it, so fall speed for bridging was set to 100%
Is it actually running at 2%?
generous-apricot•2y ago
Says it is on the interface
You can’t even hear it when it says 2%
Trust but verify
What hotend are you using? What temperature?
generous-apricot•2y ago
How am I going to verify if it’s running at 2% or 15% if I have it set at 2%
Running mosquito after first layer running 235… this is familiar for me, as this is the same setup I run on my Prusas, only difference is the fan and extruder, running orbiter 2.0 on RR and bondtechs on my prusas
Does the mosquito have a sock on it? The cooling fan is easy to overwhelm the hotend and cause problems
generous-apricot•2y ago
Not running a sock, slices socks fit like shit, I have a few laying around, I could try one.
I feel like I should have bought a Rapido rather than a mosquito, don’t see many problems with the Rapidos on here
Even at 2%?
If you are just on the edge of the right temp for petg, then yeah
Hey, you got much further with it at least... perhaps post your gcode file and maybe there is something telling in there
The fact that you got up around 17-18mm on that cube is good, seems it's just a few tweaks away... full config of slicing can be a pain, especially with all the options in SuperSlicer
generous-apricot•2y ago
By simply slowing it down and turning the fan off
New to all of this posting g-code and klippy logs etc etc, how do I post the g code file? I have a file that I load to the printer to print with, but I just tried to post it and didnt look much like something anyone can read
generous-apricot•2y ago
This is what it looks like when I upload
I can download and look open it up in the gcode previewer in SuperSlicer just fine, no worries there... seems strange, though
Not sure if it is corrupting or if the gcode is actually strange...
generous-apricot•2y ago
That doesnt look right
generous-apricot•2y ago
This is what I get when I try to view in Prusa Gcode viewer
generous-apricot•2y ago
Same as I get when I open in SS
How are you getting your gcode from your slicer to the printer? Are you using the auto-upload in SuperSlicer or are you doing it manually?
It looks like you're running some custom gcode for square corner velocity? Is this something that came from the standard config, or something you added?
generous-apricot•2y ago
Auto Upload
And no, I have not set corner velocity
generous-apricot•2y ago
Theres these settings in the middle but I have not touched them
And the file you uploaded here, was it downloaded from the printer or just saved out of the slicer to your computer and uploaded from there? (trying to figure out if there was possible corruption from browser downloads)
In SuperSlicer settings under Printer, what is in your Custom G-code area?
generous-apricot•2y ago
Saved to my desktop from slicer, then I hit upload and print from klipper and grab the file from the folder
generous-apricot•2y ago
Sent the wrong one
generous-apricot•2y ago
generous-apricot•2y ago
So when I set SS up, I chose the RR from list of printers and then checked the custom gcode box
Hmmm... where is that square_corner_velocity setting coming from....? Perhaps something in a newer version of superslicer than I have...
generous-apricot•2y ago
I sent a picture of my dashboard, the setting is in the middle of the dashboard and I've never messed with it
generous-apricot•2y ago
Not sure if this is worth looking at but I dont see anything about it in my cfg
Yeah, I don't think that setting does much other than display what is currently set and allow you to manually (temporarily) change it... what I was referring to was the setting put into your gcode file lines, which I'm not sure where it is coming from seeing as it's not in your custom gcode
generous-apricot•2y ago
Ahhhh got ya
Let me check the print gcode settings
Not that I know it is a problem, just seems odd to me... someone a little more familiar with slicer setup might know better than I what might be going on
generous-apricot•2y ago
I'm not seeing anything in print, printer or filament
That Gcode viewer is weird looking too
Well, it seems that the previewer isn't exactly perfect... if I view my sliced file there is a weird skirt line going into space, lol
You can try viewing my file if you want
Note that my sliced file is in Absolute Extrusion mode, so I wouldn't try printing it or you'll definitely get strange artifacts or errors
generous-apricot•2y ago
Same
I guess if you wanted to, you could always try this (set to relative, print centered at 150x150)
I commented out the 3 lines of custom code I have in mine in startup, but everything else should be nearly out of the box standard... 0.4mm nozzle, 240 filament temp, 85 bed temp, PETG set to 1.0 extrusion multiplier
It's my slower config, so it shouldn't be too fast or too high of accel
generous-apricot•2y ago
So shouldnt matter if I have a 500, it will just print at 150 150 on mine
Yeah exactly
generous-apricot•2y ago
I'll give it a shot
Sure, just keep an eye on it and your mouse over that emergency stop button just in case, but it really shouldn't do anything unusual
generous-apricot•2y ago
It should read my gcode from klipper right?
My file reads 100 layers, yours is only reading 67, whats the layer height set at?
0.3mm
generous-apricot•2y ago
Guess I could have done the math 😂
Heh, I'm a little impatient, so I usually print a little thicker layers and only thin it up when I need detail
generous-apricot•2y ago
I’m the same
Also, you can drag & drop the file into the g-code section of Mainsail (the console you posted a picture of)
Once I got my auto-upload figured out, I use it all the time, but I used to drag them all in manually as I was used to Octoprint
generous-apricot•2y ago
I downloaded and grabbed it out of downloads with upload and print
What’s auto upload? Nevermind, I have enough problems right now 🤦🏼♂️
Hmmm, not sure what upload and print you're referring to, actually... there is this button in superslicer that does that
generous-apricot•2y ago
Nice
Almost leads me back to the suspicion that maybe your upload method is doing something to the file, actually...
generous-apricot•2y ago
There’s a button at the top of mainsail that says upload and print, I press that and grab the file from a folder I store it in on my desktop
generous-apricot•2y ago
What is this square corner velocity in the middle of my dashboard? Maybe pulling it from there? But it should not prior to slicing
Ahhhh, that should be ok then, unless somehow your browser is messing with the file -- if that was the case, it'd be a lot more corrupt, though
generous-apricot•2y ago
Right
generous-apricot•2y ago
No bueno
generous-apricot•2y ago
generous-apricot•2y ago
Need to grab a hotend sock as blacksmith said, although it started getting wonky before the fan kicked on
Yeah, all looked good until it started getting into the infill
Just realized that I am quite sure my fan settings are too much for your fan... I am running dual 5015's that have a long startup period, so your fan kicked to full as it was doing the perimeters of that layer
generous-apricot•2y ago
I had 4 socks, now cant find one, may have thrown them away because I got tired of re fitting them all the time
Yeah, I suspect you're fighting between the hotend heat and the part cooling fan
generous-apricot•2y ago
Assuming that its possibly the hotend fan as well, running at 100% at all times
That really shouldn't cause issues on it's own, although I don't have firsthand experience with EVA 3 and where the air escapes behind the hotend
Also, that fan never turns off for anyone on RatOS, so it shouldn't affect only your printer
Ok, I have to run & get a few things done, hope you can get things tweaked and printing nicely soon
Do you mean hotend fan(the fan that cools your heat break) or the part cooling fan (fan that cools the newly printed plastic)?
generous-apricot•2y ago
Hotend fan
Yeah that should always be at 100 so that you don't get a clog
generous-apricot•2y ago
Thanks for your help, I appreciate it..... Fortunately I'm out of town tomorrow afternoon for a few days, will give me a break from this
You've been adjusting your part cooling fan right?
generous-apricot•2y ago
I had to order some new silicone boots, your theory may be correct, or at least part of the problem
I did, I chose to shut it off, even at 2% it would screw the print up once it turned on
If you leave the fan on but bump up the hotend temperature does that help? Also what line width are you using for infill?
generous-apricot•2y ago
Yeah, bump up that infill from 0.4 to like 0.5
generous-apricot•2y ago
Still does it if I bump up the hotend temp
What does that do?
Makes the line thicker, so it shouldn't be as affected by your fan
generous-apricot•2y ago
So you suspect that the fan is blowing it'?
Notice how your skirt is fine, that's at 130% of your 0.45 width
generous-apricot•2y ago
Like making it move before it lays down?
No, with it printing fin with fan off and not printing fine with fan on I suspect it is a temperature issue
But regardless, using the same diameter of your nozzle for infill usually leads to poor infill
generous-apricot•2y ago
let me bump up the hotend to 260 and see if I can run the fan at 5% or so
My other layers temp is set to 235, maybe its a bit low for this setup, works fine on my prusas though
Prusa don't print as fast as a vcore3
Even with my crappy hotend I print at like 180mm/s
generous-apricot•2y ago
That’s for sure, why I bought a rat rig, impatient
Which hotend do you run?
Nf crazy (like a mosquito but better heating block). I started back before the rapido and other higher flow hotends was known
For my next printer I plan to use a chc pro
generous-apricot•2y ago
Never seen the nf’s but just looked them up, only $63 for a magnum, lot cheaper than mosquito
Yeah you have to contact them directly to buy it. It was like $43 when I ordered it a couple years ago. But not the best choice now. Chc pro is just as cheap and paired with a titanium heat break you can print whatever you want
generous-apricot•2y ago
Printing away at 260 with 20% fan..... everything looks great except for ringing, I can fix that
Haven’t been this excited about finishing a small print (let alone a cal cube) in about 10 years 🤣
Just finished, only problem I had was with the fan when it kicked up to 100 for bridging, I’m assuming that’s way overkill with a 4028?
generous-apricot•2y ago
Well, have some tuning to do for sure, but finished the print…… chalking it up to a temp issue, was running too low on temp and the fan cycling was cooling the filament down too much.
I don't use a 4028 but from what I have heard, yes that's way too much
generous-apricot•2y ago
I could feel it from 2-3 foot away