VC4 500 Hybrid - 2 close peaks on Y
I just got my hybrid belts on after finally getting decent graphs from corexy. I haven't seen a graph like this come up in here before so I'm not really sure where I need to start my next steps of troubleshooting.
I was able to find a few leads on the double peaks from the shaketune github. One was that they can come from a wobbly table but I'm pretty confident it's not a factor. The top is a steel plate 28mm thick and doesn't like to move.
Another suggestion is frame squaring. I think the frame is about as square as I'll get at this point. Beacon gantry twist macro has ranged from -43 to -51 um on recent runs and bed mesh range was .288 on my last run. ...
VC4 300 frequency response what can i do better?
Hi i test the half day but the result is most of the time equally
Maybe are the Belt length are the problem?...
Maybe are the Belt length are the problem?...
Y Achse Shaper sehr seltsam :/
V4 300 leider noch kein Hybrid :need: kommt aber hoffentlich bald! 🙂
jemand der mir evtl. helfen kann wo dran es liegt? Das die Y Achse so schlechte werte hat :/
Bild.
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VCore 4 400 belt issue
Nice and even but no second bump and no idea where to start to try and fix that so any help would be much appreciated. The graphs are in order of newest to oldest
Vcore 4 400
I'm tuning the core XY belts on my Vcore 400. The first peak amplitude is lower than other graphs I've seen. I did correct the gear heights and it helped a little. Is this graph acceptable or is there some other cause of low amplitude at 50 ish Hz?
Thanks for any advice....
Kinda' stunned... do these still look good to you?
2.1 up and running.... a few kinks but I'd printed my old .cfg so was easy to fix the oddball stuff....
first res under 2.1 belts look REALLY good to me.... vibe seems about the same. (between version, so no ill effects on ops... woohoo)
The ability to just set a Hz and let the machine vibe while you dance around fingering parts to quell noises is FANTASTIC.
....anyway.... thoughts? flames? suggestions? yes.... I prefer my belts a tad on the tighter side (VC500 3.1 with RoS 2.1)...
Solution:
the input request in the loop (to continue the loop or not) is the 'pulse' I'm hearing as you describe. And yes, I do not see it effecting the graph/responses from the printer in the graph. You confirmed my query.... it's not an issue., was simply an observation on my part. tnx
vcore 4 500 belt issues....at a loss
I've tuned and adjusted this like 50 time over the last week and I'm struggle on how to get the graph to look better. I have an extra peak in the lower belt. Are the belts supposed to slap against the frame at certain frequencies? Or do I need to tighten more?
Belt Tension Alignment
Having trouble getting my second peak to align in the belt tension graphs on my V Core 3.1 400, both belts tensioned to 70Hz and the first peak lines up perfectly, but the second won't. Doesn't seem like the belts are rubbing anywhere that I can tell, and the gantry is aligned in the front according to the assembly manual
Unenclosed vcore3.1 500mm issues
I've tightened every single bolt and grub screw, checked square as best I can but having trouble nailing down where the vibrations are coming from. Any ideas on what to check?
VC4 300 frequency response
I know from the docs that this graph indicates binding somewhere but I can't for the life of me figure out where. The only thing I can think of is that my belts are overall too tight? Any suggestions on things to check and walk through. The gantry appears to have free range of movement on both X and Y without any noticeable issue (other than normal disengaged/powered off stepper drag), the belts don't move up or down on any of the idlers or pulleys. I'm just at a loss and being too tight is...
Solution:
nice you got what ever that was binding unbinded.. Your upper belt is tigher. Do you think you could loosen it by one tooth and get it back to the same tension? Otherwise its clean enough to run with if you want
Help with the resonance on x
Standart vcore 3.1. Had the FMMM mod installed some time ago. This is my result. I have tightened everything down, belts are kinda straight. But my X axis is just wild. I had much better results when i just assembled the printer. It was ideal. Now its a mess. Y is okay, but still there is a second big hump and i could not identify. Oh, and previously X axis had only 1 hump at 74 ish hz. There was no vibration on 125
Shaper graphs have different peaks for Y and Z
I just reworked my whole X-axis on my V-Core-3.1, 400mm. Based on the belt graphs, I think the tension is about right-- both peaks are close in magnitude on 55 Hz (can I tell if they are tight enough from the frequency? or only if they are equally tight?)
For input shaping, the Y-graph weirds me out a little bit. The Y and Z have different peaks, and Z is actually quite a bit taller than the Y vibration. As I type this out, I realize that must mean the whole tool-head has rotational vibration around X axis as it vibrates at 43 Hz? I presume that is not normal? If it's fine, which frequency should I use for input shaper?
If it matters, I'm using the toro3d tube and rail that I won in a Discord raffle forever ago. It is 340g lighter than using regular rail w/ 2020 aluminum....
VC4 300 Enclosed - Belt tension gantry alignment
I'm trying to do the belt turning but having some issues, hope someone can give some pointers.
When I try to align the two peaks the gantry goes out of alignment.
Is it because the upper belt is longer then the lower belt?...
Potential lower belt issue - any advice what to check?
Working on my V-core 4 300mm build, CoreXY. I've been working on getting the belts properly set up and tensioned. This is my current graph. They are matching okay but I have that extra peak on the lower belt. Any tips on what to look at?
Equal tension but low amplitude
I have a question concerning belt tension this graph is pretty good imo (it's not that anymore). So it's matched but low amplitude, but as soon I turn it up my lower belt start fading (overtension). What could explain being so low on amplitude yet being on the verge of overtension. Will try to get back to a graph similar.
It's getting mind boggling because before redoing the loom and the wires in the box I printed and I was higher in amplitude...
are the shaper graphs fine ? V-Core 3.1 300m with RR Toolhead Beta 2
Hi everybody,
for the belt tension graph, i'm not sure how can I align the lines of the first spike, as like the second graph ? Could somebody help me there or would this be fine ?
For the frequency response and shapers for the x axies, i would have a question. Why is the ZV shaper recommended instead of the MZV as the ZV is showing a vibr=0.7%, while the ZV as a value of 0.0%
...
shaper graph low y acceleration V Core 500
Just wanting tips on how to improve my y acceleration wondering it is a vibration issues as I was unwilling to cut most of the wires short to path them as in the v core 500 documents.
