Topics created by Turbo

@dc42 i can tell theres a layer time difference, due to that layer being the top surface for some other objects on the plate. perimeter print direction stays consistent though.

@paulhew Well aware that extrusion mult = flow. I tried an lgx extruder cause why not, but got some z banding issues outta nowhere and the for some reason wasn't able to reach as high of a volumetric flow rate (despite current adjustments and temp increases), so i went back to clockwork. As for the x axis. its already on the single MGN12.
Already went through the rail alignment process, and considered the improved duct, but im getting fantastic overhangs with the current setup so i dont want to change it too much (always on 25% 65% for bridging. Maybe thats too muchand is making the abs shrink too quickly?).

My v0 is also for on the go, and rarely gets turned on while im home. The pi has its own network setup so i dont need wifi to use it.

@Turbo said in Superslicer adding a G10 command from nowhere?:

its using values i dont want it to use

It's likely using values from your filament settings for temp, is it not?

https://github.com/supermerill/SuperSlicer/issues/636

mafotaso created this issue in supermerill/SuperSlicer closed the hotend doesn't heat up with Super slicer despite on it is in the G-Code #636

@Phaedrux just thought of something. Is it possible that it has to do with some sort of overlap between inner walls/infill with the outer walls? that could explain why my thin walled prints look good, whereas anything else not so much

@achrn @fcwilt @JoergS5
Here is the 1st official print. 150% benchy, straight off the print bed. Needs some retraction adjustment but otherwise minty.
-0.3mm layer height -65mm/s print speed
Capture1.PNG

@Phaedrux that line is leftover from previous config. copy paste and me not paying attention. you are correct on 0,0 position

this is the rest of the code after homing x and y

;--blah blah blah home x and y. rest of code below ;-----Home Z Axis------ G91 ; relative positioning G1 Z5 F7200 S2 ; lift Z relative to current position G90 ; absolute positioning G1 X141 Y65.5 F7200 ; go to first probe point G30 ; home Z by probing the bed ; Uncomment the following lines to lift Z after probing G91 ; relative positioning G1 Z5 F120 S2 ; lift Z relative to current position G90 ; absolute positioning ;------Return to right Rear Corner------ ;G1 X5 Y65.5 F7200 ; move to left G1 X5 Y180 F7200 ; move to home corner M566 X1200 Y1200 ; Set maximum instantaneous speed changes (mm/min) M201 X1500 Y1500 ; Set accelerations (mm/s^2)

@arhi You were right with regards to the printer not moving "properly". So, after switching to linear rails on the z axis, I found my z axis dimensions to be spot on with the calculated value. I believe there may have been some unwanted friction using the v-rollers, causing the prints to come slightly short.

repeating the .stl is outputting the same issue. Printing standard squares shows no evidence of z banding.
Going to try on a second printer.
Printing on another printer shows similar z banding despite being a belted z axis. seems like an stl issue

@Turbo said in Identical artifacts/issues on two parts on the same print job:

So should 98% flow be okay despite having the gaps close at 85%?

Yes. the gaps closing shows you the minimum flow. Due to the way the plastic forms a cylinder when extruded the flow math can get pretty weird in slicers. 98% is basically perfect.

@Phaedrux no obvious friction occurring in the rods/bearings, they're also barely a few weeks old from mcmaster so i don't think they're bad. Swapped them just in case. Wiring loom is organized with cable chains, so no chance of that happening. Ive watched 3 1hr prints at 200% speed now with nothing happening. it really just hates me.

@jay_s_uk I knew i was blind. thank you. It was from an old config.

@Turbo hmm.... my thinking is that there might be a few things at play. The patterns are occurring regularly every 8mm up the print, and your leadscrews do have an 8mm lead (8mm per rev, assuming you're using a standard Prusa Z-axis). This suggests that there may be something going on with the Z-axis as @whopping-pochard mentioned. However, it is also only on the Y-face, following sharp corners suggesting that it is something X-Y motion or extrusion related.

Are you using bed mesh compensation? It could be that there is some small misalignment/issue in your Z-motion which only comes apparent following sharp corners (maybe too fast or two slow). I'm guessing your X & Y jerk/accel settings are quite different which will mean the motion will be different on the Y-face to the X-face. I don't know exactly what the full mechanism would be, but I'm guessing your Y-jerk & accel is lower so the head is moving slower on the Y-face following a sharp corner and there isn't the resolution in your Z-motion to still give smooth zertical motion with a slight binding on the lead screw. It's convoluted and wishy washy I know...

Something else I noted looking closer at your print is that there is a small amount of Z-banding. It's pretty minor so nothing unusual (I'd actually say it's pretty good!), but some of the bands line up with the pattern you are seeing in a regular way, again suggesting it is Z-axis related (though not only a Z-issue).

As I say, the best way to tell will be to try and print the same object again, but with a 4mm tall base at the bottom with rounded edges. If the pattern comes out at the same heights in the two prints, you know it must be (at least partially) Z-axis related.

Final question - which way up did the object print in the picture?

@PaulHew SOOOOO about that... i remembered im using a different extruder motor, and i didnt realize that the old one is 0.9 degrees, so i was going for 10mm/s vol flow in reality because the new one is 1.8

SO CHECK STEPS/MM PEOPLE

im an idiot

@dc42 I'm not using mixing at all. There are no M567 commands.

config.g

@deckingman I'm sorry, I didn't mean to try and disprove your observations, just to put the expected behaviour into perspective for anyone reading.

I made a huge typo in my post above. I meant to say PA value of S0.1 not 1.0. Your observations are completely valid based on the maths, considering you say S0.5 is the value you are referencing.

Coex, located in Appleton, WI.

Going to have a 100+Kg order and they say they're well in stock 🙂

@Turbo said in Issues with dual extrusion and Prusaslicer with Duet 2:

@dc42 I understand that, and its what im trying to avoid. I dont want to have to change my start file every time i want to change the extruder, but i think i got it thanks to Danal.

In that case, make sure there are no T commands anywhere in the GCode file. If you send T1 before you print it, it will use tool 1. Otherwise it will select tool 0 when it reaches the M109 command.

@Turbo said in Getting both stringing and underextrusion:

it pretty much goes against what everything on the internet says

It's not crazy if it works!

@Turbo said in No Voltage when plugging in part cooling fan. Did I break it?:

@bearer
Fair enough. What I'll probably do is get a proper 1A fuse (amazon prime is back to one day for those somehow with all this panic going on), and then use the fan2 header since it still works, and sometime this autumn ill either take it to someone who knows what they're doing if I really feel the need to repair it, or upgrade to duet 3 (or maybe even 4?), hopefully by then they'll be shipping again and will have more stupid proofing on it 🙂
Thanks again

That's the nice thing about having a spare fan output .... and exactly what I have done ....
I am not going to rip my whole setup apart when everything can be made to work by moving a connector and re writing a line in confg.g.

BTW I don't know how most of the FET failures manifest themselves but in my case there is a tiny crater in the middle of the FET 🙂 Look at the two FET's that bearer indicated and see if you can find any abnormality on the surface.