V-core-3 500mm stock with FMMM. Need some help.
First time setup. Trying to make sure I have this right. In general, I think it looks pretty good compared to the example I have seen Helge Keck show, but I am looking or some feedback on what, if anything I should do to improve it. The second peaks are not the same amplitude. Should I adjust the lower belt? Would it be tighter to increase the peak?
I have seen that 125 Hz artifact on a lot of the other graphs. Is this just to be expected with the EVA3?
Is there a way to run the resonance test in that frequency range continuously to see if I can find whatever might be loose?
7 Replies
causal-orange•14mo ago
causal-orange•14mo ago
Made a few minor tweaks. This is the current belt graph. I'll wait to see if anybody has any advice before I make things worse.
causal-orange•14mo ago
Well, I keep working on this despite the lack of feedback. I did the FMMM mod. I don't think it made much difference in my case, though I really like the fact that I can actually see the belt path.
These are the latest graphs.
I was able to identify the 125 hz issue I was previously having. The fan shroud for the 4028 was not completely secured against the back. I can't seems to get it to tighten all the way down, so I may need to get some kind of gasket in there. The gears in the LGX lite extruder are rattling as well. Sticking a piece of filament in and locking the lever seems to have helped with that. There is still some noise that I can't seem to get rid of. I could use some advice if anyone is willing. I'd really like to move to figuring out my bed mesh issue that I also posted about. Dying to actually start using this printer.
I was able to identify the 125 hz issue I was previously having. The fan shroud for the 4028 was not completely secured against the back. I can't seems to get it to tighten all the way down, so I may need to get some kind of gasket in there. The gears in the LGX lite extruder are rattling as well. Sticking a piece of filament in and locking the lever seems to have helped with that. There is still some noise that I can't seem to get rid of. I could use some advice if anyone is willing. I'd really like to move to figuring out my bed mesh issue that I also posted about. Dying to actually start using this printer.
correct-apricot•14mo ago
belt tension not the same peak
fascinating-indigo•14mo ago
Regarding the fan shroud against the backplate, I had the same issue. I considered a thin gasket but decided to grab some sandpaper to a really flat surface (stone kitchen worktop for example) and I sanded both down until they were perfectly smooth.
also, I think the graphs look really good. If you manage to get that 125 Hz down a bit its even better but if not I wouldnt worry about it too much.
correct-apricot•14mo ago
300 86-100 hz
400 66-75 hz
500 53-62 hz
causal-orange•14mo ago
Appreciate the responses. Unfortunately, I screwed up the frame alignment while trying to fix my bed mesh. I'm going to take it apart and start over. Hopefully the second time around I'll have better luck.