Well, it's finally here  

RE: Well, it's finally here

Congrats - here's how to quiet that thing down.

1.  Squash ball feet - two yellow dots.

2.  Put a strap or large zip tie around the Y motor - tighten it up to the back frame. That's 90% of the Y carriage noise.

RE: Well, it's finally here

@dan-rogers

I already have some squash balls from when I got my Mini, though currently I have it on printed anti-vibration feet. For the most part, it's loud during non-print moves only. The X/Y steppers whine sharp enough to startle the cats (I've doublechecked everything, belts are centered and nothing is rubbing). Belt tension is X270, Y 262, Z has a dull vibration tone as expected, which when printing layers isn't too much of a deal. Can't even hear the bearings, unlike my Mini (Misumi vs generic?). Worst is fast movement on both X/Y at the same time (but different speeds) with that cross-frequency generation. 🙃 If I keep the movements at 100mm/s or less, it's pretty much silent, but who wants to go slower? I typed up some Gcode to test this, the test files go as follows;

The first test homes the machine (naturally), centers the Z axis at 105, then moves X from 0 to 250 and back, then Y 0 to 210 and back at speed intervals 20, 40, 60, 80, 100, 150, 180, and 200mm/s. This helps identify which axis is being the bugger. This one sounds as expected, stepper whir audible at 100mm/s and above, getting higher pitched as it goes. X/Y sound about the same one after the other.

The second test homes, centers Z, then moves X/Y both from 0 to 210 and back (reducing X to keep them at equal speeds/distance) to see how the vibrations sync up. As expected, sounds about like test one, except a tad louder since the steppers are in sync and just adding up in volume.

The third test does the same as test two, except it moves X out to 250 to get different overlapping frequencies. Woo boy this one causes a racket even in stealth mode! The mixing of the frequencies is what really brings out the annoying. In stealth mode it's not exactly loud, but the tone is much more noticeable. In standard mode? Everything vibrates, even at lower speeds. Yey resonance! I'll have to get a paver, definitely. What doesn't help is it's on a box constructed of only 18mm plywood, along with a small printed box with my printer tools in it, which they like to rattle to the stepper frequency too.

I also created files for both test two and three that reverses X/Y  (starting point is X0 Y210 instead of X0 Y0) which creates different tones since it spins the motors opposite. Test 3 reversed is the most annoying. 🙃 

I found out something while testing this as well, since the gcode is so simple it seems like the MK3S+ runs it too fast from the SD card unless I add in some fluff (like the large comment section generated by prusaslicer). When I try to start it from the SD card, it either "starts" it, and just does nothing, or the printer reboots. However, running it via Octoprint? The test files run as expected with no problem. I have to pad out the files to get them to run via SD. Guess it doesn't like running only 53-70 lines (even this has a bit of fluff I don't really need, such as turning the heaters off, that were never on to begin with, but safety is more important than saving a few lines here).

Edit: It also runs fine if I use Octoprint to start the file from the SD card, just selecting it from the menu on the printer it complains.

RE: Well, it's finally here

Posted by: @skreelink

Am I part of the cool kids club now?

Maybe!

RE: Well, it's finally here

Is blue the new orange?

RE: Well, it's finally here

Posted by: @dimprov

Is blue the new orange?

It could be! My Mini was orange swapped to green.

Here they are in their current, temporary home.

RE: Well, it's finally here

@skreelink

I like the blue color.