Trident 250 - Please help with vibration profile and resonances

[stable mauve]

Hello, fellow resonance saviors! I hope I won't be a burden here.

I have a Voron Trident 250, mostly stock, except for a Chaotic Labs Voron Tap V2. On the toolhead, I'm running an EBB36 with its built-in accelerometer. All motors are 24V with TMC2209 drivers — XY are LDO-42STH48-2504AC, and Z are 42HD4027-04.

I’ve been chasing some nasty print issues, so I recently rebuilt the entire XY axis and started focusing more on calibration, digging through similar cases.
The printer is currently not enclosed, as the panels were resonating badly (I'm waiting for some foam tape to arrive). So far, I've logged around 26 hours of print time.

Also, the XY idlers are toothless, as I suspected a bad bearing, but new toothed idlers are already on the way. Belts are tensioned first using a mobile app and then fine-tuned with COMPARE_BELTS_RESPONSES, which already helped reduce some resonances.

👉 My goal is not to print insanely fast but to have reliable prints with nice clean walls. I'd like to stick around 150 mm/s for walls, 250 mm/s for infill, and accelerations up to 5000 mm/s². Eventually, I plan to fully enclose the printer for ABS, like I did on my other two Vorons.

So far, I’ve done belt tuning, Input Shaping, and I’m using recommended MZV + smoothing.
I also wanted to run a vibration profile, but after running the test, Mainsail stops responding and never finishes rendering the graph, even though the data is written. I have to power-cycle the printer to get back in. No clue what’s going on — even if I leave it for an hour (thinking it's calculating something), nothing happens and I can't reconnect.

⚙️ I'm running a Raspberry Pi 4 Model B - 1GB RAM + SSD. Any ideas what could cause this?

I’m attaching some photos of the prints, printer, and graphs I managed to complete.

Thanks a lot in advance for any tips and help! 🙏

Also, I hope communication won’t be an issue — I assume most of you are from the US, but I'm from Central Europe, so sometimes there might be a delay in my replies.

[idle jungle]

👋

Hey there

Reth is from the US, but im from germany 🙂 so we are in or almost in the same time zone

[stable mauve]

Wow, Hello! That was super fast 😁

[idle jungle]

Gotta be fasten than Reth

[stable mauve]

Well, practically neighbours. I'm from Czechia

[idle jungle]

But take your time and finish. No rush please

Really glad to see someone actually reading the guidelines and posted everything we need

[stable mauve]

I tried to take better pictures of the print, hope you see it better now

[idle jungle]

Could u upload your klippy.log as a file here please, but rollover first so the log is not so big in file size? (There is a little button above the log download buttons under the machine tab)

[stable mauve]

I wanted to provide as many informations as I could. Spend in this channel more than 6 hours yesterday so it would be rude from me not to share the informations 😄

[idle jungle]

Its really appreciated, trust me.

[stable mauve]

rollover the log so it's fresh as it can be

[stable mauve]

glad to hear that!

I have a log downloaded after I power-cycle the printer if it helps

[idle jungle]

Thats a little to small in size (its empty)

[stable mauve]

I realized the 24 log is empty, sorry

I was too fast to download it 😬

[idle jungle]

That one is good, thanks

According to your serial your printer/config is pretty old, isnt it?

Asking because u have hold_current still in your config.
Its not recommended to be used anymore

And hotend fan limited to 80%? 🤔 any reason for that?

Could u run vibration profile via shaketune and post it here please?

I dont think we see ringing on the cube to be honest

[stable mauve]

well yes and no 😁 Was a 1.8, then I burned it down (leterally) and now it's finally rebuilded to trident. So brand new build. Basically nothing was reused, everything new.

I had noisy hotend fan, so I slapped a 12v noctua on it and reduced power to 0.8

[idle jungle]

Ah i see.
Which MCU/mainboard are u using? Octopus, spider etc

[stable mauve]

SKR 1.4

All hold current removed, going to start the vibration profile. Hopefully it will finish.

this was the last attempt, I'm not sure if you're able to get anything from this, but it never created graph since it got stuck

[idle jungle]

Do you primarily print without panels?

[idle jungle]

Unfortunately no, cant use it. Or at least i dont know how

[stable mauve]

no, but as I said, I had crazy resonances -> rebuilded the XY axis -> don't have the thin foam tape so for now without panels

got a hold to a 5 mm thick eva foam, but I'm not sure if it's a good idea as anyone is using thin 1 mm ones

any suggestions about this thickness?

[idle jungle]

5mm is totally fine. Most users in #1021908552702505051 Use that 🙂 u will need the correct panel clips to accommodate 1 vs 5mm but thats it

[jade coral]

welcome to voron resonance how may we shake and bake today

[idle jungle]

Was asking because u have to measure as u print. If u print without panels - all good.
If u print most of time with panels, u have to measure like that

[idle jungle]

We have a model candidate here, read all the guidelines and followed them perfectly

[stable mauve]

what a relief! 👍 I will print new clips soon and enclose it with that

[stable mauve]

Plan is to be sure it's mechanically correct. Then I'll enclose it and perform same tests by my own (hopefully). I wanted to ask for help to see if there is something wrong with the build and also to get resolved the vibrations profile

[idle jungle]

lets see if it will run through this time, otherwise we will ask Frixx 🙂

the latest version shouldnt cause issues

[stable mauve]

first tests were horrible, so I was worried that something is wrong (like here)

[jade coral]

based upon your x-input shaper I would agree that you need to replace the toothed idlers.

it could also be a loose screw somewhere in the toolhead or x-carriage.

however, your cubes are not showing resonance. They are showing that PA, and EM need to be tuned. They are also showing that you might be printing at bad speeds.

Try reruning vibrations test

[jade coral]

is this the most recent

[stable mauve]

no no, it's from yesterday

[jade coral]

okay

[stable mauve]

now it's calculating vibrations so I'm recording my screen 😁

aaaan it failed again

[jade coral]

can you post what it says in the console please

[stable mauve]

nothing, I can't get to the web interface

[jade coral]

what?

[stable mauve]

will share the recording

[jade coral]

@onyx oar need software guy please

[stable mauve]

basically it finishes movements, then it shows some values and then I have failed connection

[jade coral]

when you can get back in please post klippy

[stable mauve]

it's 2 minutes long but you can skip it

now I can leave the machine for hour, but it will never recover

I need to power-cycle it to get it working again

[jade coral]

restart and grab klippy log

[stable mauve]

in the meantime, what suggest that front idlers are faulty? I had never a good experience with those types as the bearing failed very often

should I rollover the log before downloading?

without rollover

[idle jungle]

nothing obvious

line 3638 is whats the last output in the console
this may take some time

[stable mauve]

I installed the Shake tune yesterday by this command

[idle jungle]

yea thats correct

[stable mauve]

everything up to date

vibration test was done this afternoon for the first time and everytime it lost connection

[idle jungle]

do u know if the pi is fully unreachable at that point?
no SSH login
no ping answer

[stable mauve]

so should I try to download the logs again?

[idle jungle]

the log is great. its the correct one we need

[stable mauve]

I tried connect via WinSCF - couldn't reach it

didn't tried to ping it or Putty, but I imagine it would be the same

Tried to connect on my phone to IP adress, no luck either

reinstalation? Like I don't want to but if it helps?

[idle jungle]

I'm running a Raspberry Pi 4 Model B - 1GB RAM + SSD
1GB is a bit on the low side.
could u try turning off/stop Crowsnest (via the top right corner power button) and rerun the test please?

[stable mauve]

on it

I discovered 1 hour ago that I had only 1 GB of RAM 😦 Probably wrong purchase. Had a briliant idea, that this will be my workhorse, so I purchased a SSD and then found out that connecting it to RPi 3 is too complicated to me or maybe impossible

[idle jungle]

i dont know how shaketune exactly works but i would say it loads the generated raw data into the RAM and calculate it, generate the graph and output it to the folder.

but not sure if RAM overload would cause your issue

[stable mauve]

I saw that the memory was almost maxed out :/

now it's running test

what RAM do you use?

I asume that RPi 3 B is also a bad choise right?

I have one laying around

[idle jungle]

4

[idle jungle]

yea

[stable mauve]

will probably purchased it if nothing else helps

BTW did I stopped Crowsnest correctly?

[idle jungle]

im far from being a linux expert, Reth pinged eric. and we still have Frixx in our arsenal 🙂

[idle jungle]

yes

[stable mauve]

me neither, mechanical part of the build was done in 2 weeks, then I was lasy to finish it and it took me 2weeks to finish firmware etc

glad KIAUH exists 😁

I hope you will not want me to go into the RPi directories as I'm terrified. Copy, paste -> that's my style

[idle jungle]

we will get there 🙂 one way or another

[stable mauve]

from a different topic, I'll purchase a K3 kit as I always wanted to build one, is there a chance for support on this machine in the future regarding input shaping and resonances? I want this machine to go nuts

[idle jungle]

sure, we helped other printers already 🙂 but we cant help as much as we can with a VORON

[stable mauve]

it failed again

it's almost maxed out

[jade coral]

are you on the most recent shaketune

[stable mauve]

a minute

[stable mauve]

V5.1.1

[jade coral]

That is the most recent

@celest horizon potentially a new one for you

[stable mauve]

GUYS!!!

Stupid me was thinking what to turn off as we did the Cronsnest

i saw I can lower the speed steps

aaaaand

voila

Like it's still not working, but I have at least something

[jade coral]

no it is working

[stable mauve]

https://tenor.com/view/baby-dancing-oh-yeah-gif-5468700357653755930

[jade coral]

so now you get to install tmc_autotune

[stable mauve]

yeah, but with default it's not working

[jade coral]

https://github.com/andrewmcgr/klipper_tmc_autotune

[jade coral]

I know, I pinged frix

[stable mauve]

I was worried you'll say that, on it

interpolate: true
For extruder too?

[idle jungle]

no, only XY

[stable mauve]

so only XY necessary right?

[idle jungle]

yes 🙂

[stable mauve]

AUTOTUNE_TMC

sorry I just want to be suere

*sure

[idle jungle]

yea its correct like that 🙂

nothing else needed

[stable mauve]

sorry but I need help

22:07
Error on 'AUTOTUNE_TMC': missing STEPPER
22:07
AUTOTUNE_TMC

so I send 22:08
AUTOTUNE_TMC STEPPER=stepper_x

but I don't think anything is happening

[idle jungle]

u do not need any command

thats why i wrote "nothing else needed" 🙂

just config

[stable mauve]

so how do I perform the auto tune?

[idle jungle]

its done

thats why its called autotune

u have to do nothing

[stable mauve]

aah, so now I rerun the vibration profile?

[idle jungle]

bingo

[stable mauve]

Okay, thanks. So added to printer.cfg and then rerun vibrations

and it will autotune itself

[idle jungle]

it just sets TMC parameters which are ideal for your motors

[stable mauve]

okay now I get it. I was expecting another graph 😬

[jade coral]

@little hamlet I think you made TMC_Autotune to go. @stable mauve wants more dials to play with. I don't think ":it just works" makes him happy. 🙂

[stable mauve]

I was so confused, so I was expecting more graphs to be more complicated

[idle jungle]

well if u have too much free time, there is https://github.com/MRX8024/chopper-resonance-tuner/blob/main/wiki/chopper_tuning_guide_english.md

[stable mauve]

https://tenor.com/view/michael-scott-the-office-nope-no-disapprove-gif-5418568

so with the autotune

[idle jungle]

u can also see here that its doing magic

[stable mauve]

it explains why it's so noisy with 60mm/s, but also on low speeds like 30mm/s

what can I take from this to make the printer not resonate that it will wake up the whole house? 😀

[idle jungle]

Speed

[stable mauve]

I'm looking at the guide and my deduction is to print at 45° angle on the build plate, 45mm/s for a first layer and let's say 150 or more for walls?

[idle jungle]

the top middle graph will be the most relevant for you.

avoid the white areas of the graph
print in the green ones.

2504's want to go fast

[stable mauve]

is the line falling down 100-200 sugesting, that it will be better when I print faster?

dumb question, what speeds and accels would you recomend for start?

[jade coral]

drop PWM to 20e3

you can do this by adding
pwm_freq_target:22e3
underneath the name in the motor for both x and y in tmcautotune

[stable mauve]

should i also run the test on higher accel? like 5000?

[stable mauve]

What steppers would be suitable for more leisure, quiet printing? Have another different printer, that I'd like to be quiet. Or is there any guide?

[idle jungle]

2504 are pretty good.
try what reth said first.

usually switchting to 2240 TMC drivers help

[stable mauve]

quiter printing with 2240? I had 2209 laying around so I used them

[idle jungle]

i cant say that with 100% confident, but yes.
but i dont know if your board supports them. they must be run via SPI instead of UART

[stable mauve]

I understand. I'll learn more about them. Ideal combination from your point of view?

i have a feeling that 2209 are already outdated

[idle jungle]

2504 + 2240

[stable mauve]

difference?

also I hope I'm not anoying and hopefully someone could benefit from this

[idle jungle]

the issue is, i dont know what "loud" is for you. and how it sounds currently in person. a video can never record it properly

will 2240 help reduce noise? yes.
How much? i dont know

[stable mauve]

i get it. Nothing will be easier than to purchase both in the future and test them on my own

[wraith kestrel]

I’ve been refraining from comment to not hijack your thread but I want to state that i have been carefully reading this and every other post in this section to try to learn more about this. And I’m struggling with what I think are bad motor/driver combo so this does help me out A LOT

[stable mauve]

I was doing the same yesterday and I learn a bunch as well

[wraith kestrel]

In struggling badly with belt graphs and IS results coming out worse than when I built my printer. Issue is, it’s not a voron so I have to export what I learn and apply it to my platform. It’s been a lot of help seeing the common issues here and the ways to go about fixing them. I asked and they said I can post even if it’s not a voron so I’m gathering the info to do so. But I’m pretty sure I’m doomed from start with a bad driver choice for my application. Don’t want to hijsck your thread however, so wish you the best and hopefully you’ll sort it out. I’ll be reading on quietly lol

[idle jungle]

just for the record, this https://biqu.equipment/products/bigtreetech-tmc2240-v1-0? is the official #bigtreetech shop

[stable mauve]

already ordered them 🤣

[idle jungle]

u are not alone 🙂
feel free to open a post here as well. @stable mauve made an excellent example on how to post here #1348739505997217845 message

[stable mauve]

@idle jungle you're too kind, I just followed the rules 😄

[idle jungle]

worst thing u can do is not benefit from this community.
so ask as much as u can 🙂

[stable mauve]

Going to speed up the print and hopefully post the result in 30 minutes or so

[idle jungle]

no rush. we will be here tomorrow 🙂

[stable mauve]

should I recalibrate the inputshaping with the eddited TMC autotune?

[idle jungle]

wont hurt

[stable mauve]

and just to sum it up. I learned a bunch today and I'm so grateful for your help! Thank you so much. The mechanical part of the build is more or less okay from the graphs? I'll print some more tests, print the clips for enclosure, and use beefy foam tape and then rerun the tests. As soon as I receive the drivers (need to study those) and receive new toothed pulleys, it should be more finding the right speeds (VFA?) and tuning the slicer settings? Or is there a way to smooth my prints by these calibrations?

[jade coral]

https://youtu.be/c5cEwReBax8?si=wOfOVZf3dImcFDGe

[stable mauve]

👌 movie for tomorrow, thanks

I don't want to jinx it, but I see improvement! Sense of achievement (because of you guys!) Printing 2x as fast as before, the sound of the movement is more pleasant.

Thank you once more, I'll be printing few more test and if you don't mind I'll share the results and ask if needed

[stable mauve]

Hello guys, I modified my slicer settings and was pleasantly surprised at how well it looks with speeds from 140-300 mm/s on 5K accel. Awesome. I also purchased the "trident" rubber feet instead of the V1.8 I had on the printer. Today I hopefully should receive new toothed idlers so I can replace them, but ... **Is it necessary to have them in front of XY joints?

[jade coral]

If your printer is producing those prints I would not touch it.
Happy printing

[stable mauve]

Also found a thin rubber foam in the local hardware store on the back shelf all dusted. So I have to have it 😁 Anyway small jig for even cutting and voila

BUT ... this morning I noticed a difference in belt color. Almost like one belt is metallic... further inspection if the belts are not rubbing somewhere and they are not. The only explanation I can imagine is the following. Use a stepper motor pulley for 9 or 10-mm belts instead of 6-mm. The idea was, that I would be more clear about the flanges. It's a no-name pulley and it seems just strange to me. Could it be, that it's made from sh*tty material and I should replace it?

[jade coral]

are these gates belts? It is normal for the part of the belts which contact the teeth of the pulley and the teeth of the front idler to discolor

[stable mauve]

Honestly I don't remember. As far as I know, those are some generic ones. Should it be okay then, and possibly in the future purchase the Gates belts?

[jade coral]

so the "wear" pattern is correct.
Gates will turn different shades of brown
these generic belts look like they turn silver

[stable mauve]

aah okay, so that means that in the past I had the Gates

slight dust on them I noticed now

[little hamlet]

Silver dust is aluminium wearing off your pulleys and idlers. It's normal.

[jade coral]

interesting

[stable mauve]

I did swap them for a different one since I got crazy squeaky noises and it looks like I purchased a sh*tty one 🤣

I believe I see the bootom part (right pulley) and top part (left pulley) in the original state where the belt never rotated around.

[stable mauve]

So I managed to close the printer, and I ran around 15 hours on it.
I swapped the motor pulley and redid all the tests today. Found the magical speed is around 140 mm/s on outer walls. Printed from Fillamentum ASA

I believe I see small ammount of ringing still, but I'm not sure

Using this speeds in OrcaSlicer

and had to use this setting to get consistent walls

Otherwise this was happening next to the holes

Also noticed this ugly line on the edge, it is not a seam, but I'm thinking maybe too excessive PA? Also no retractions here

Too many informations, will be glad for any feedback on what to improve. Now I'm chasing probably the last bit of satisfaction, but probably never had so clean prints from any of my VORONs. Appreciate the tool you created and support you gave me! 🥳

[jade coral]

I think you are on the right track. I have nothing to add

[stable mauve]

Thank god for the DSLR, those phone pictures are crap for details. Any ringing on those prints? What bothers me are those bumps around the Voron logo and the corners. Any ideas?

[idle jungle]

Not seeing ringing
I would say we can safely direct u to #slicers_and_print_help 🙂

Cube looks very good

[stable mauve]

AWESOME! Thank you very much for helping. Was hoping to get those kind of prints out of my machines. Want to get it perfect to the last detail, just because of the time you dedicated to my printer. I'll ask in the slicers thread for the fine tuning. I hope I do understand the workflow now, if anything is off regarding the resonances, I'll probably be here again. Thank you soo much once more and feel free to close this thread.