Hiya!
Thank you for the long and detailed reply, I really appreciate it.
I’ve upgraded to 0.9 steppers a while back, but they don’t do much for the 2mm vfa’s , just the shorter ones that are the length of a step.
I’ve tried the tmc autotune, going to try chopper resonance tuning after I finish having a go at messing with the values myself.
The tool you linked seems really handy, I’ll definitely look into it thank you for that!
Have probably one last question for you, you haven’t mentioned the gt2 belts as being the cause/suspect and that theory is pretty prevalent, I’d say even more popular than the motors being the issue, so Ive a feeling you don’t think they are actually the cause. Why do you think the belts aren’t the issue?
I’m leaning towards it being the motors, as many bandaid fixes ive seen from people assuming the belts are the issues(like electrical tape on the belt/pulley), that actually did manage to help the vfa’s, would just dampen the artefacts coming from the motor. But stealthchop enabled/disabled and chopper settings had an effect the vfa’s ,and I don’t think they would if the belts were the cause.
3 post limit for new users so I had to edit this one oop
I’ve done the same with the belts, ran the flat side on the idler, even went as far as sanding the teeth down at some point. Got wider pulleys and idlers to rule out the theory of the belt rubbing on the sides aswell. No noticeable difference in any of those. Besides I think partially sanding the teeth down on the whole belt? I know the electrical tape/teflon tape method did help aswell, also i remember greasing the belt having a positive impact. But those would have their own issues and they just mask/dampen the problem instead of fixing it.
About the less and more belt tension thing, I’d agree somewhat, that less tension helps the 2mm vfa’s , and more tension might worsen the motor vfa’s , but they’re 2 different vfa’s, they’re different in length , the motor vfa’s are a good bit shorter , dependent on the length of the step (1.8° Vs 0.9°) . Less tension in the belt could just dampen the 2mm type of vfa from the motor, or reduce belt vfa, wherever it actually originates from.
Sidenote ,just yesterday , had to swap to a new roll of filament to continue printing vfa test prints, and the same brand and colour gave my whole set of 10 different speeds vfa’s, instead of 2 speeds that were affected previously, swapped to a different roll again because wtf, that’s the same brand and colour, and half my speeds were affected, take from this what you want lmao, I’ve no clue what it means.
Anyhow farewell , thank you very much for the replies! They’re really appreciated! Helpful to absorb extra knowledge and especially the shake&tune tool you shared with me, I’ll be having a go at that soon enough. Thank you!
I doubt you have the answers lmao, I wish someone did. Been through dozens of forum posts and there seem to be none.
