Disclosure: less than a week into this Bambu adventure… formerly a heavily modded Ender3 with Noctura and BTT SKR E3 mini).
Looking for “anything” to quiet the startup routine (mainly the insanely loud bed vibration thing… is that really required every time?!)
My wife goes to bed a good hour before I do, and I often use the time to work on some 3D designs. On the Ender, no issues, the thing was so heavily modded it was quiet enough I could hear the end-stops click.
I already have plans to do the Noctura chamber fan mod… but I need the startup routine a lot quieter for late-night prints.
I’ve been unsuccessful in a few attempts at modifying the machine start gcode to get rid of the vibration test.
My printer is attached to a desk which is attached to a wall which is attached to timber studs, and the entire graph of everything connected to that structure in my house vibrate violently when the machine starts.
I had to put little rubber pads on my wall-hung picture frames cuz they would rattle. Two rooms away.
I checked with the missus, so far, she says the noise doesn’t bother her… so I’m “safe” (plus I’m mostly printing models for her right now, so I have “spousal credits” building up :D)
i am using my a1m in my university dorm and my roommates said it is first the avc(active viberation control) at the starting gcode, then its the fan that annoyed them
im trying deleting the avc gcode then lowering the upper bound of the fan speed
it seems that just delete the starting mech mode fast check gcode will stop the viberation
from “mech mode fast check start” to “wipe nozzle”
caution you should get ready to cut off the power at any time since at the very first time i am playing with the gcode, my a1m cannot stop Z stepper as the nozzle touchs the bed)
Long time since I posted this question, but you’re absolutely right…
Comment out the section that starts “mech mode fast check”. Since my original post, I’ve added a new printer profile which I’ve named “NightMode”
Also, I read a few posts on Reddit that imply doing the vibration check Every time is actually causing a but more wear & tear than necessary… some folks suggest doing a vibration check weekly, rather than every print.
Hi Guys, i think i found a pretty neat work around!
So The Bambulabs checks a Flag befor bed leveling. You can toggle that flag before every Print. I Adjusted the Starting Gcode, so the Printer checks the same Flag before the vibration-check and skips it, if you have bed leveling turned off.
If you just comment the Vibration Check you need to resclice everything for night/Day-mode. With my workaround you can just slice your stuff and worry about the noise, when you start the print. This is especially useful, when you reuse Gcode.
; ====== mech mode fast check (conditional) ======
M1002 judge_flag g29_before_print_flag ; read flag
M622 J1 ; jumps to M623, if Flag==0, resumes if Flag ==1
ahhhhhhh sorry guys, this works for my Bambulabs P1S, will propably work for the X1C and the other P1 too, but for the A1 and A1 mini or the H2D you need some other Mod. This worked for me just fine, but i implemented it today haha
