V2.4 300 | VORONDesign | Page 1

brave slate Jul 19, 2025, 4:33 PM

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Hello,

I have recently rebuilt my v2.4 and I'm trying to figure out the resonances as the Y axis seems quite off to me

Mods:

XOL toolhead
G2SA
Cartographer
Beefy Front Idlers
EBB36
Carbon XY joints
Sensorless homing
Bowden cable support (The reccomended one)

Accelerometer used:
ADXL345 on the EBB36

Belt tension:
Tuned to 110hz using the Carbon Drive app, measured at 150mm from center of toothed gear to center of idler

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Belts + resonances

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Here is a link to the printer.cfg file: https://github.com/Dennis-5618/Voron-2.4/blob/main/printer.cfg

GitHub

Voron-2.4/printer.cfg at main · Dennis-5618/Voron-2.4

Contribute to Dennis-5618/Voron-2.4 development by creating an account on GitHub.

fading shadow Jul 19, 2025, 5:00 PM

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fading shadow Jul 19, 2025, 5:00 PM

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brave slate Hello, I have recently rebuilt my v2.4 and I'm trying to figure out the resonan...

Can you please provide side and rear pictures of the toolhead please

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Did you qgl before running test?

brave slate Jul 19, 2025, 5:01 PM

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I did run QGL, though I can try again

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also ill send the images, one moment

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I will admit the wiring can be a good bit better

livid breach Jul 19, 2025, 5:15 PM

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brave slate Here is a link to the printer.cfg file: https://github.com/Dennis-5618/Voron-2.4...

driver_TOFF: 3```
where is this coming from?

brave slate Jul 19, 2025, 5:19 PM

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From googling it, it seems to somehow come from tmc_autotune, but i really dont know how I got those

I will remove those and retest

livid breach Jul 19, 2025, 5:20 PM

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brave slate From googling it, it seems to somehow come from `tmc_autotune`, but i really don...

if u use autotune, u can not have driver values in the config

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https://github.com/andrewmcgr/klipper_tmc_autotune

brave slate Jul 19, 2025, 5:20 PM

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ah, i didnt know that. Makes me wonder even more how and where i got those from

fading shadow Jul 19, 2025, 5:21 PM

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You need to make sure all wiring is off the x-axis

livid breach Jul 19, 2025, 5:21 PM

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brave slate ah, i didnt know that. Makes me wonder even more how and where i got those from

its always good to document your printer in a word document or whatever.
"i have XYZ in my config because..... and i got it from ...."

fading shadow Jul 19, 2025, 5:21 PM

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brave slate Jul 19, 2025, 5:21 PM

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I will redo the wiring after dinner

livid breach Jul 19, 2025, 5:21 PM

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this way u dont need to think, guess or assume 😉

brave slate Jul 19, 2025, 5:22 PM

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livid breach its always good to document your printer in a word document or whatever. "i have...

That is a very good idea, i will be doing that

brave slate Jul 19, 2025, 5:22 PM

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fading shadow

yikes, it is yeah

fading shadow Jul 19, 2025, 5:22 PM

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Cracked parts can do weird things to input shaper

livid breach Jul 19, 2025, 5:23 PM

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brave slate Hello, I have recently rebuilt my v2.4 and I'm trying to figure out the resonan...

are the belts GT3 or GT2 EPDM?

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because they are not normal GT2 gates

brave slate Jul 19, 2025, 5:24 PM

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livid breach Jul 19, 2025, 5:24 PM

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normal GT2 are not black/black

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they are brown/black

fading shadow Jul 19, 2025, 5:24 PM

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We get brown black here

brave slate Jul 19, 2025, 5:25 PM

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The image on the website is indeed brown/black. When i received them i was surprised but thought it was just the color

livid breach Jul 19, 2025, 5:25 PM

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brave slate The image on the website is indeed brown/black. When i received them i was surpr...

check whats written on them

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if its GT3, u need higher tension to have them equal to GT2 in terms of performance - which u can not do without double shear

brave slate Jul 19, 2025, 5:26 PM

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livid breach Jul 19, 2025, 5:27 PM

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odd, never ever seen black/black GT2

brave slate Jul 19, 2025, 5:27 PM

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Me neither, though since the text matched i thought it would be fine

livid breach Jul 19, 2025, 5:28 PM

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brave slate

just so u know, these are not RF (reinforced)

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https://alchemy3d.de/products/gates-gt2-belts?_pos=1&_psq=gates&_ss=e&_v=1.0 these are

Alchemy3d

Gates GT2 RF Belts

Gates GT2 RF Belts These are GT2 belts from Gates to be used in your everyday printer. What to expect of this? GT2 Reinforced style belts Sold in steps of 1m, buy multiple to get one single longer belt Rated temp up to 85°C Cut on request and thus not returnable! How to use? Please refer to your devices manual for usag

brave slate Jul 19, 2025, 5:29 PM

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ah, i might look at getting them sometime soon. Sucks as I just got these installed

brave slate Jul 19, 2025, 8:12 PM

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I have now done the following:

Centered the belts on the motors
Replaced the blue bowden/canbus clips with zip ties
Removed the driver_TBL: 1 & driver_TOFF: 3 from my config
Made sure none of the wires are touching the X axis
Replaced the cracked extruder part

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Here are my results, the spike at ~125hz on the Y axis would mean there is something loose in the toolhead, correct?

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Not entirely sure if these add anything but I decided to try out the adxl on the cartographer as well

livid breach Jul 19, 2025, 8:39 PM

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brave slate Here are my results, the spike at ~125hz on the Y axis would mean there is somet...

correct

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check for loose screws etc

brave slate Jul 19, 2025, 10:28 PM

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I've checked all the screws, however as I took the tool head apart I noticed that I could slightly wiggle the carriage

Could this be an issue? In the video I have reassembled the tool head so it's a lot easier to see

fading shadow Jul 19, 2025, 10:32 PM

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Can you focus on the bottom half around the linear rail carriage

brave slate Jul 19, 2025, 10:36 PM

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I hope it's clear

fading shadow Jul 19, 2025, 10:37 PM

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Did you check the fours screws that go into the x-linear rail carriage?

brave slate Jul 19, 2025, 10:37 PM

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Yup, they are tight, though even on the printed part on the carriage there is some play when I wiggle it

livid breach Jul 19, 2025, 10:37 PM

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Which Rail is it?
Vendor
Preload
ModelNo. If available

brave slate Jul 19, 2025, 10:38 PM

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It's an older rail from a formbot kit, so I'm really not sure

fading shadow Jul 19, 2025, 10:39 PM

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What x-carriage are you using?

livid breach Jul 19, 2025, 10:39 PM

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brave slate It's an older rail from a formbot kit, so I'm really not sure

How old are we talking?
Older formbot rails werent great with preload

brave slate Jul 19, 2025, 10:39 PM

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The printed parts are the XOL carriage

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I can take a look at my email but a few years at least

fading shadow Jul 19, 2025, 10:40 PM

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livid breach Jul 19, 2025, 10:41 PM

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I can highly recommend https://alchemy3d.de/products/berserker-viking-skis-by-west3d-linear-rail-mgn12h

but lets see if we can improve without replacing things first

brave slate Jul 19, 2025, 10:41 PM

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Can't find the original email but it's 2021/2022

brave slate Jul 19, 2025, 10:41 PM

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fading shadow

I've replaced those clips with zip ties

fading shadow Jul 19, 2025, 10:41 PM

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When was the last time you lubed the rails, and how many hours are on them?

fading shadow Jul 19, 2025, 10:42 PM

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brave slate I've replaced those clips with zip ties

Remove the zip tie at that location please

brave slate Jul 19, 2025, 10:42 PM

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Last time was the rebuild so a week or two ago, basically 0 hours

livid breach Jul 19, 2025, 10:42 PM

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And before that?

brave slate Jul 19, 2025, 10:42 PM

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fading shadow Remove the zip tie at that location please

Sure

fading shadow Jul 19, 2025, 10:43 PM

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So you relubed a week or so ago?

brave slate Jul 19, 2025, 10:43 PM

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livid breach And before that?

I'd say 250-300 hours of print time maybe before

brave slate Jul 19, 2025, 10:43 PM

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fading shadow So you relubed a week or so ago?

That's correct

fading shadow Jul 19, 2025, 10:43 PM

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Were any of the balls dull, or were they all shiny?

brave slate Jul 19, 2025, 10:44 PM

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To be really honest I can't remember that exactly but I think they were mostly shiny

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Mostly as in not mirror-like but also not matte

fading shadow Jul 19, 2025, 10:45 PM

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Okay.

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Did you relube the y rails also?

brave slate Jul 19, 2025, 10:47 PM

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Yup, I did those too

fading shadow Jul 19, 2025, 10:50 PM

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Can you home, qgl, home z
Then check the squareness of the gantry - all sides and diagonals.
In addition move the x-axis to the front and back checking the spacing on the xy joints to the front idlers, and the motor mounts please

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For z height it might be best to do this at say 100mm

brave slate Jul 19, 2025, 10:51 PM

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Sure, I will do that tomorrow morning as it's close to 1am for me 😅

brave slate Jul 20, 2025, 7:59 PM

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Apologies for the late message, I have now rebuilt the toolhead to make sure i didnt miss any screws and also made sure that the gantry is square following the instructions

Here are my new shaper graphs, the 125hz peak is gone but im not sure how to improve