The email looks like it came form someone else so i am going to copy on here too incase it doesnt go to you and goes to nicole instead
The 3dp module is not extruding on this firmware version sent, only the fan and nozzle are functional
as such iwill put it back, and hope my 3dp module didnt get borked.
Edit: not borked, works ok back in stock at least.
So it sounds like both ends are lacking experience with each other’s method. That’s usually how new programming language is created lol. (I’m joking)
@WilliamBosacker I was joking…
Lol sorry sometimes I forget I sound too literal on stuff. I’ve been programming from an early age, started with C++ actually.
I havent read the whole thread, too much talk about offtopic things for me.
Whats your travel speed?
Fast direction changes with fast speeds (travel?) could get the steppers to overheat and skipping steps.
I never used the fast profile of luban because of the “rocking off the bed” movement.
A workaround could be to set the acceleration to less than M201 X3000.00 Y3000.00, i would suggest to reduce by 500 or so.
Travel speed
These are my values I used for nearly all prints, basically my “medium” settings
I have not tinkered with acceleration at all before on the machine.
I have seen the shifting on high quality/low speed before as well.
So far, the disabling “auto extrusion width” seems to clear things up… but time will tell.
Do you have layer shifts with half the speed also?
I guess this is too fast for small surfaces.
Yes I do,
I truly believe it to be related to geometry w/ the variable line widths at this point over anything else.
I have some test ideas to pinpoint this.
Snapmaker reviewed my settings and didnt think anything was out of wack, but said to use luban of course because thats the answer hehe
Have you checked you z axis steps per mm? Maybe it’s not moving as far as it should?
No, I can’t say that I have.
Maybe ill check that out.
I haven’t had any failures since i canceled auto extrusion width, but now im not finding a value i like on line width lol
Is it over extruding and causing it to hit, or is it curling? Do you know what is causing the layer shift?
Another random thought I had, I wonder if the stepper motor drivers are putting out too little current and if that could be increased at all. Maybe it’s not a settings issue at all maybe the linear modules are not capable of putting out enough force.
Nothing of the sort, its just failing.
Others have tried the print and also encountered it.
Its looking to me that something about the way simplify3d slices things doesnt play nice with luban in certain geometries is my current theory, hence the attempt to disable auto line width.
it doesnt matter a whole lot if i run it fast or slow, but id like to think about your answer a bit.
i had asked snapmaker if there is a trimpot to increase the current on the linear modules but evidently its a hard value on a resistor which i am not comfortble with
Yeah it is a fixed resistor, That’s probably not the reason anyways particularly of slowing it down doesn’t change anything.
I’m curious why you just invoked luban - are you playing the g-code files from luban? If it’s sliced in S3D where does luban come in where it doesn’t play nice?
Well, because snapmaker’s response to my problem is “use luban”
Is it possible that in the variable line widths the linear modules are being instructed to move in measurements it doesnt have the resolution to move in? Thats kind of where i am heading on this. Either that, or there is some funk in the firmware. as such, i think snapmaker wants us to use luban because they know something is funky and luban compensates for it or disallows values it cant handle
in reality i recon theres a way to address this with firmware if it can be pin pointed so im trying all kinds of different line width values right now, but i am finding that even that seems funky, where if i have things tuned in pretty good for .4 line width, and try something else, its not even close on that value, which kind of negates the extrusion line width flow rate adjustment in my opinion unless you are married to a specific line width.
What is the widest line width you think i should be able to print with the .4 nozzle? what i have noticed is that the s3d will use values way beyond that in some sections of a slice if set to automatic, and that doesnt seem to pan out well with the reality of how my tests are going. i set to .8 and got .62 at most.
I think the limit is around 250% of the nozzle diameter. Could you post your factory file with the variable line with I want to look at it
Yes, here is the factory file from when i had the failures last
ball.zip (2.2 MB)
edit: my mention about the line widths not matching may be a fallacy, in my idiot brained state i dint realize my calipers were out of zero.
edit 2: naw, im meausuring 65 on an 80 but about 32.5ish on a 32 (after tuning in a .4)
Are you talking about this setting?
Or where is variable extrusion width - the thin gap fill setting?
I have printed stuff almost exactly like that previously, I don’t see what the issue would be causing the skip.
The auto checkbox is what i am referring to
The only reason i even looked at it was someone mentioned they thought it was weird the line width was changing rapidly (looking at it in prusa)
with that said, someone else on this very thread tried to print that same file and had similar issues.
from a standpoint of what a 3d printer should be able to do, this should be fine as far as i know, so what is it that snapmaker doesnt like, and why? thats my quest now.
I was previously pretty sure that the auto radio button just sets the extrusion at 120% of the nozzle - where’s an example of it generating wider extrusions?
Where? In the fill? That’s not controlled by that setting.
