Accelerometer reduced noise during printing
Received the Accelerometer right before Xmas holidays.
After doing input shaper and phase stepping calibration noise level during printing (reduced vibration?) seems to be significantly reduced.
Could this be possible?
CS
Sascha
Best Answer by hyiger:
Received the Accelerometer right before Xmas holidays.
After doing input shaper and phase stepping calibration noise level during printing (reduced vibration?) seems to be significantly reduced.
Could this be possible?
CS
Sascha
Yes, running the phase stepper calibration will significantly reduce noise from printer frame resonance.
RE: Accelerometer reduced noise during printing
Received the Accelerometer right before Xmas holidays.
After doing input shaper and phase stepping calibration noise level during printing (reduced vibration?) seems to be significantly reduced.
Could this be possible?
CS
Sascha
Yes, running the phase stepper calibration will significantly reduce noise from printer frame resonance.
RE:
Prusa should include this in INDX, since it upgraded it in Core oneL‘s nextruder
RE: Accelerometer reduced noise during printing
I'm disappointed that the + upgrade didn't include the accelerometer. Maybe in the (fictional) S upgrade?
See my (limited) designs on:
Printables - https://www.printables.com/@Sembazuru
Thingiverse - https://www.thingiverse.com/Sembazuru/designs
RE: Accelerometer reduced noise during printing
I'm disappointed that the + upgrade didn't include the accelerometer. Maybe in the (fictional) S upgrade?
It's tempting to think about a community design for a Nextruder back cover, where you can permanently mount the accelerometer on the print head. There should be plenty of room in the back, above the fan, and it would be a convenient place to route the cable into the main harness.
The PCB would have to sit horizontally though (I assume), to orient the accelerometer axes as the firmware expects them. So it would look a bit awkward, with a "wart" on the back of the Nextruder. And the standard cable included in the accelerometer kit is not long enough to route it via the main umbilical cord, so one would need to buy a longer one -- or cut the existing cable and solder in some extension wires.
Hmm, I am tempted to take a stab at that...
RE: Accelerometer reduced noise during printing
Hi, C1L has accelerometer already integrated. It is mounted on the "mount loveboard" part. So just modify this part for C1. The problem will be the short cable as mentioned here.
RE: Accelerometer reduced noise during printing
Hi, C1L has accelerometer already integrated. It is mounted on the "mount loveboard" part. So just modify this part for C1. The problem will be the short cable as mentioned here.
Many thanks -- you were quicker than me! I had just realized that the Core One L does not have a new Loveboard as I assumed, but just adds the accelerometer board as a separate part. And I was staring at the CAD models of the Core One L vs. regular print heads in Fusion...
It looks like it might not be enough to swap that single "Mount Loveboard" part, since Prusa made various tweaks to the Nextruder's printed parts. But I am curious now and will give that a try!
Extending the existing cable should be good enough for starters: Just cut the cable, solder in extension wires and isolate with heat-shrink tubing. It's probably best do do that near the xBuddy end of the cable, such that the section of the cable inside the umbilical cord is not patched.
RE: Accelerometer reduced noise during printing
Just remix the C1 "loveboard mount" part, no further changes are needed.
RE: Accelerometer reduced noise during printing
Just remix the C1 "loveboard mount" part, no further changes are needed.
Yes, I realize that. But since I am lazy, I was wondering whether I could just print and install the C1L Loveboard mount. 😉
Looks plausible when I compare the two parts side by side (on the screen).
RE: Accelerometer reduced noise during printing
A permanent way to integrate the accelorometer onto the C1/C1+ would be fantastic, would it interface correctly with FW I wonder, or would it be simply reduced to the same manual exercise as today?
RE:
would it interface correctly with FW I wonder, or would it be simply reduced to the same manual exercise as today?
You will still have to call up the input shaping calibration or phase stepping calibration manually from the printer's front panel. You just avoid the physical steps of removing the silicone sleeve, attaching the accelerometer, unplugging the hole in the back and guiding the cable to its connector. So you start a calibration pretty quickly, e.g. after pre-heating the chamber. (Which is known to make the belts tighter than at room temperature.)
The Bambu printers, to my knowledge, perform a check of the resonance frequency before each print. I don't think the Core One L (with its pre-installed accelerometer) does it that way, and a modified Core One certainly will certainly not do that. And I think that's a good thing: The automated print preparations take long enough as they are; the frequency scan can get quite noisy; and I don't see why it would be needed before every print.
Personally I have put the idea of modifying the Loveboard mount (to attach the accelerometer) on the back burner for the moment. I realized that it will probably not fit the upcoming INDX print head, and am not keen to put in the time for just a sort-term modification. Let's see what solution Prusa and Bondtech come up with for the accelerometer on the INDX! Since sticking the clip-on holder over the heat block will no longer work, they need to do something.
RE: Accelerometer reduced noise during printing
Hi, C1L has accelerometer already integrated. It is mounted on the "mount loveboard" part. So just modify this part for C1. The problem will be the short cable as mentioned here.
Please note that the accelerometer used in the CORE L1 is different from the one on the store's website (it is on a smaller PCB) and is not yet available.
RE: Accelerometer reduced noise during printing
The information about the different dimensions of the C1L accelerometer PCB is interesting. The question is whether Prusa is planning any upgrade of the C1/C1+ with an integrated accelerometer, or if C1/C1+ is closed development branch and no improvements that were implemented in the C1L based on community experiences will never be implemented in the C1/C1+?
RE: Accelerometer reduced noise during printing
The information about the different dimensions of the C1L accelerometer PCB is interesting. The question is whether Prusa is planning any upgrade of the C1/C1+ with an integrated accelerometer, or if C1/C1+ is closed development branch and no improvements that were implemented in the C1L based on community experiences will never be implemented in the C1/C1+?
In Prusa's shoes I would focus 100% on proper integration of the INDX extruder. Once INDX is available as an option, it seems rather absurd to have a printer platform with two entirely different, incompatible extruders -- where customers have to discard the expensive Nextruder when they upgrade.
If the INDX extruder performs well, getting its cost down and making it the standard for Prusa printers seems like the right thing to do. So any engineering that goes into the Nextruder now might be a wasted effort a few months from now, or say at the 2026 FormNext at the latest.
RE: Accelerometer reduced noise during printing
Its not so simple. INDX is mulmaterial alternative. INDX does not support high temp filaments. Why Prusa introduced high temperature hotend? I thing that there will be two main version, with Nextruder and with INDX.