After solving my TPU print issues, I finally be able to assemble AMS riser V2. As soon as put it on its place my P1S started to sing. sound is similar to whistle or aliens computer chimes like the one in sci-fi movies. I guess Riser acts as an acoustic enhancer and made the volume of this sound audible. I show a short video to share but system does not allow me to upload videos.
I had an issue printing with AMS riser V2. As the center of gravity moves farther up, printer and AMS starter to shake wildly when it prints fast. Due to this shaking or change in resonance several thin and tall prints toppled, failed misprinted etc. I auto calibrated printer and those failed prints printed without an issue.
I was planning to design some tool containers for its side mounting slots. Now I came to realization that they will be shaky too, additional noise and possible print issues. I postponed further modding it to a later date.
Does your printer started to sing as well. Wish i could upload a video. It is hilarious. Every model has its own theme.
I found the riser I printed pulled the PTFE tubing at the buffer up a little and the filament would squeak inside the tubing. I printed a part that bolts on the back and aligns the tube (and hold the AMS data cable) and no more sounds from there.
I don’t know if that’s your “singing” but you can test just by holding the tube straight at the buffer and see it stops.
Mine was not squeaking but whistling. My LED strip arrived 15 days after I built the riser Once I installed it, that singing muffled and not noticeable unless I pay attention.
Every model had their own songs and tone. I think the resonances were concentrating in the empty cavity of the gasket and coincidentally reflected to a spot were they were augmented to an audible level.
Another possibility is, the TPU profile did not worked for me. My TPU is 98A, I had to create a profile which makes the printed parts harder than many people had. When the extruder moves to right the PTFE tube scrapes the top of the gasket and sometimes causing a small gap at the joint point between rare and front pieces. This could be acting like a whistle hole as well.
About the squeaks, when using cardboard spools with ring type adapter, the rings do not fit in the slots. With the rotation force, they get stuck in the slot and unstuck again. This is the squeaks I experience. I get used to that sound but when they get stuck, It causes artifacts due to momentary underextrusions.
