# Mechanical Problem with Brand New SV08 Max Unit, Can't Fix? **URL:** \ **Category:** Sovol SV08 MAX\ **Created:** [April 19, 2026, 12:16am UTC](https://forum.sovol3d.com/t/mechanical-problem-with-brand-new-sv08-max-unit-cant-fix/9895 "2026-04-19T00:16:11Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![R23195](https://avatars.discourse-cdn.com/v4/letter/r/8c91f0/32.png) [@R23195](https://forum.sovol3d.com/u/R23195)\ **Post date:** [April 19, 2026, 12:16am UTC](https://forum.sovol3d.com/t/mechanical-problem-with-brand-new-sv08-max-unit-cant-fix/9895/1 "2026-04-19T00:16:11Z")
This is driving me up the wall, printer and PLA filament calibrated through all of Orca tests, but there is an artifact that shows up every time oriented toward the Z1 (front left) rail. It is a repeating artifact mostly vertical, that ruins all prints. It is not slicer-related, because I’ve printed different models, changed the seam placement, put the seam on random, etc. and has no effect, always occurs facing Z1 rail. Must be mechanical? But it’s a brand new unit. I really don’t want to have to send it back, I need the printer soon. Things I’ve tried are below: ![IMG_9073](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/d/def3953f746e11271afee8b2b0dbf739e908108d.jpeg) -I have checked all belts (all Z belts and x-y) with a pro belt tensioner and the frequency app all are fine -I have checked the gantry is totally square and level, with all screws tightened and no missing screws -I have watched the printer closely and don’t see any drag on belts, etc. Is this the Z1 stepper motor? What would cause this type of issue? Thank you for any help! ---
**Author:** ![Lion](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/lion/32/5586_2.png) [@Lion](https://forum.sovol3d.com/u/Lion)\ **Post date:** [April 19, 2026, 12:43am UTC](https://forum.sovol3d.com/t/mechanical-problem-with-brand-new-sv08-max-unit-cant-fix/9895/2 "2026-04-19T00:43:47Z")
Since there are 4 rods, can you post a pic of the MAX pointing to what you are calling Z1 ..?? (I don’t own an SV08) ---
**Author:** ![R23195](https://avatars.discourse-cdn.com/v4/letter/r/8c91f0/32.png) [@R23195](https://forum.sovol3d.com/u/R23195)\ **Post date:** [April 19, 2026, 2:49am UTC](https://forum.sovol3d.com/t/mechanical-problem-with-brand-new-sv08-max-unit-cant-fix/9895/3 "2026-04-19T02:49:29Z")
No problem, the Z1 is the front (closest to user and front display) to the left of that display. So facing the printer, the front, left rail and belt (not screw rods). This is important there are not 4 rods, they are four z belts. ---
**Author:** ![printdude\_09](https://avatars.discourse-cdn.com/v4/letter/p/2acd7d/32.png) [@printdude\_09](https://forum.sovol3d.com/u/printdude_09)\ **Post date:** [May 2, 2026, 1:56pm UTC](https://forum.sovol3d.com/t/mechanical-problem-with-brand-new-sv08-max-unit-cant-fix/9895/4 "2026-05-02T13:56:42Z")
i have the exact same issue in exact same position that you describe, front left and rear right, slant vfa like. ![image (5)](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/1/132b4c85bbbb07c7ab46143449c256159ada1046.jpeg) ---
**Author:** ![R23195](https://avatars.discourse-cdn.com/v4/letter/r/8c91f0/32.png) [@R23195](https://forum.sovol3d.com/u/R23195)\ **Post date:** [May 2, 2026, 7:34pm UTC](https://forum.sovol3d.com/t/mechanical-problem-with-brand-new-sv08-max-unit-cant-fix/9895/5 "2026-05-02T19:34:54Z")
yes, that’s it. that’s the same artifact, same diagnosis. ---
**Author:** ![printdude\_09](https://avatars.discourse-cdn.com/v4/letter/p/2acd7d/32.png) [@printdude\_09](https://forum.sovol3d.com/u/printdude_09)\ **Post date:** [August 18, 2026, 6:10am UTC](https://forum.sovol3d.com/t/mechanical-problem-with-brand-new-sv08-max-unit-cant-fix/9895/6 "2026-08-18T06:10:33Z")
![slant_vfa](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/5/52dac338566f6037fec0a43189c658ef29bc2ad4.jpeg) This slant vfa wont go away, changed left right sliding seat square gantry belts tuned but left side always have these vfa its a 50x50x7mm object for test with above outer inner and below inner outer, one is faster one is bit slower printed. any possible solutions? been through ellis guide several times but not sure whats causing this. can someone pinpoint the source of this issue. ---
**Author:** ![cardoc](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/cardoc/32/6926_2.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\ **Post date:** [August 18, 2026, 4:09pm UTC](https://forum.sovol3d.com/t/mechanical-problem-with-brand-new-sv08-max-unit-cant-fix/9895/7 "2026-08-18T16:09:13Z")
The pictures are the top surface? If so try and add “fade” to your [bed\_mesh] configuration. > **[Mesh Fade - Bed Mesh - Klipper documentation](https://www.klipper3d.org/Bed_Mesh.html?h=mesh#mesh-fade)** > > The Bed Mesh module may be used to compensate for bed surface irregularities to achieve a better first layer across the entire bed. It should be noted that software based correction will not achieve perfect results, it can only approximate the shape... For your test set `fade_end: 6`. This should result in no Z axis moves in layers above 6mm. Also try setting your top surface to “concentric” and see what that looks like. ---
**Author:** ![printdude\_09](https://avatars.discourse-cdn.com/v4/letter/p/2acd7d/32.png) [@printdude\_09](https://forum.sovol3d.com/u/printdude_09)\ **Post date:** [August 20, 2026, 8:09pm UTC](https://forum.sovol3d.com/t/mechanical-problem-with-brand-new-sv08-max-unit-cant-fix/9895/8 "2026-08-20T20:09:22Z")
its not the top surface its the left side wall of a rectangle 50x50x7mm ---
**Author:** ![cardoc](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/cardoc/32/6926_2.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\ **Post date:** [August 21, 2026, 6:06pm UTC](https://forum.sovol3d.com/t/mechanical-problem-with-brand-new-sv08-max-unit-cant-fix/9895/9 "2026-08-21T18:06:31Z")
I’d start by editing the Sovol printer.cfg to stock Klipper values ```auto [resonance_tester] accel_chip: lis2dw probe_points: 250, 250, 30 accel_per_hz:100 min_freq: 15 #was 35 max_freq: 135 #was 45 max_smoothing: 0.5 #Was 0.25 hz_per_sec: 1.0 [input_shaper] damping_ratio_x: 0.1 #was 0.001 damping_ratio_y: 0.1 #was 0.001 ``` > **[\[resonance\_tester\] - Configuration reference - Klipper documentation](https://www.klipper3d.org/Config_Reference.html#resonance_tester)** > > This document is a reference for options available in the Klipper config file. > **[\[input\_shaper\] - Configuration reference - Klipper documentation](https://www.klipper3d.org/Config_Reference.html?h=input#input_shaper)** > > This document is a reference for options available in the Klipper config file. Rerun the resonance calibration: > **[Measuring the resonances - Measuring Resonances - Klipper documentation](https://www.klipper3d.org/Measuring_Resonances.html?h=resona#measuring-the-resonances_1)** > > Klipper has built-in support for the ADXL345, MPU-9250, LIS2DW and LIS3DH compatible accelerometers which can be used to measure resonance frequencies of the printer for different axes, and auto-tune input shapers to compensate for resonances. Note... Don’t forger to manually set your max acceleration (X and Y) in Both your printer.cfg AND your slicer. Note: I set accelerations to 75% of the recommended values. Finally run Orca’s VFA calibration.