Bad first layers maybe are not your fault. Here’s why
Hello
I got my MAX in September 2025 and since day zero I had inconsistent first layers. Here is my sovol's forum topic from 2025 First layer cumulative X Y error (same pattern on first layer are common problem with MAX owners)
Since than I had days with perfect first layers and days with first layer peeling of or nozzle almost scratching the bed.
I modded my MAX really hard, even with some mods that were crafted entirely by me. Mods that include: custom enclosure, custom feeding system, macros, mainline klipper and new eddy probe.
Long story short the issue is SV08 MAX eddy probe (I suspect that SV08 have the same issues).
This probe have no temperature sensor so no thermal drift calibration which seems to be huge issue with 500^3 build volume. I bought EddyDuo from BTT and created custom PA12 mount for it (with sacrifice of auxiliary fan). The USB cable for BTT eddy have just enough space to fit inside of toolhead.
After 1 day of prototyping mount and 2 days of testing I can confirm that on 250x250, 350x350 and 400x400 you will get perfect first layers.
Results:
250x250
350x350
400x400
IF YOU DECIDE TO USE THIS MOD YOU ABSOLUTELY HAVE TO CHANGE CFG FILES!!!
for example you must change max X from 502 to 496
I used eddy (EddyDuo via USB)
I will contact SOVOL about this because, in my opinion, choice to use eddy with no temperature calibration was engineering mistake and people do notice. I saw posts about first layer issues all around the internet.
If someone want to use this mod here is step file (Print it in PA12, and you need 2 M3 inserts)
EddyDuoSovolMaxMount4.step (99.1 KB)
Eddy - BIGTREETECH WIKI
https://biqu.equipment/products/bigtreetech-eddy?variant=42480826777698