smply3d profile for MK3  

Re: smply3d profile for MK3

+1

Re: smply3d profile for MK3

yes, i need it too .....soon :X

Re: smply3d profile for MK3

The standard MK2 Profile glitched the Display, so i edited the start gcode (more or less from the slic3r profile) to:

M115 U3.1.0 ; tell printer latest fw version (don't know if necessary)
M83 ; extruder relative mode
G80 ; mesh bed leveling
G1 Y-3.0 F1000.0 ; go outside pritn area
G1 X60.0 E9.0 F1000.0 ; intro line
G1 X100.0 E12.5 F1000.0 ; intro line

Seems to work fine and i have my beloved supports back 😉

I added the .fff in this post if you need it (as zip file because of forum).

Re: smply3d profile for MK3

I think that what we really need are speed settings. Other than that MK2 profile works fine on MK3, too. It's just that printer is not as fast as it could be.

Re: smply3d profile for MK3

I tried a few popular MK2 .fff configs, and on the exact same model, it would fail using S3D, yet work on Slic3r PE.

Which was increadably surprising to me!

Pretty sure we could benefit from a S3D profile based on a few tests I ran.

Re: smply3d profile for MK3

The standard MK2 Profile glitched the Display, so i edited the start gcode (more or less from the slic3r profile) to:

M115 U3.1.0 ; tell printer latest fw version (don't know if necessary)
M83 ; extruder relative mode
G80 ; mesh bed leveling
G1 Y-3.0 F1000.0 ; go outside pritn area
G1 X60.0 E9.0 F1000.0 ; intro line
G1 X100.0 E12.5 F1000.0 ; intro line

Seems to work fine and i have my beloved supports back 😉

I added the .fff in this post if you need it (as zip file because of forum).

I'll have to try this when I get a chance. I basically did this exact same procedure, but when I turn the print cooling fan on, I immediately get a print fan speed error. This error causes octoprint to disconnect, but seems to do OK if I print from SD. Still, I'd like to get this figured out.

Re: smply3d profile for MK3

I have been working on mine -- it is by no means complete (doubt it will ever be) but I have been using GitHub to keep mine organized. I strated with S3D default profile for MK2 and modified it with linear advance values and speeds so far --- for the most part.

https://github.com/jeffgolden/PrusaS3DProfiles

Re: smply3d profile for MK3

Ignore this post, my code has a problem. See my comment below

The standard MK2 Profile glitched the Display, so i edited the start gcode (more or less from the slic3r profile) to:

M115 U3.1.0 ; tell printer latest fw version (don't know if necessary)
M83 ; extruder relative mode
G80 ; mesh bed leveling
G1 Y-3.0 F1000.0 ; go outside pritn area
G1 X60.0 E9.0 F1000.0 ; intro line
G1 X100.0 E12.5 F1000.0 ; intro line

Seems to work fine and i have my beloved supports back 😉

I added the .fff in this post if you need it (as zip file because of forum).

One note: If you use the M83 command above, make sure you have "relative extrusion distance" checked in the Process->G-Code tab. If not, you'll get a mess.

I use absolute extrusion distances, and my current setup that seems to be working is:

[edit: ignore!]
M107 ; disable fan
M115 U3.1.0 ; tell printer latest fw version
G28 W ; home all without mesh bed level
G80 ; mesh bed leveling
G1 Y-3.0 F1000.0 ; go outside pritn area
G1 X60.0 E9.0 F1000.0 ; intro line
G1 X100.0 E12.5 F1000.0 ; intro line
M900 K45

I got most of this from a prusacontrol gcode file. My differences from yours:
- disable the fan (because I copied it from prusacontrol, shouldn't be important)
- M900 K45 to enable linear advance (k45 is the default PETG #)

Seems to be printing ok (first layer done). I'm just running some esun blue PETG at 50mm/s to see how it works.

Re: smply3d profile for MK3

I have been working on mine -- it is by no means complete (doubt it will ever be) but I have been using GitHub to keep mine organized. I strated with S3D default profile for MK2 and modified it with linear advance values and speeds so far --- for the most part.

https://github.com/jeffgolden/PrusaS3DProfiles

nice, i will definitely look at that 🙂

@paul.m27
Yep is in relative mode, also i cleared the "Additional terminal commands for post processing" window and copied the settings for retraction from slic3er PE and set the speed to 60mm/sec - to be honest i'am the guy that goes thru all the tabs in the settings and changes something for the specific print - and almost never saves it 🙁

My profile was based of "Original Prusa i3 MK2 RC4" (i don't have a MK2, i had to troubleshoot a friends machine some months ago, idk how recent that was) and that absolutely didn't work on the MK3 - Display glitched, menu in all different languages, couldn't even stop the print - had to power off (and it didn't save position).

The only difference i found with this, compared to slic3r PE, is that the hotend is not heating together with the bed at startup, but i can live with that (and have nice supports).

P.S.: only tried with SD Card

Re: smply3d profile for MK3

My comment above on "this only works in relative mode" was true, but my alternate solution that edited the code to make it work in absolute was not right. It worked at least once (I was watching a successful print as I posted it), but in later runs it failed miserably. I eventually figured out that it was retracting(!) by a significant amount during the front filament stripe, which then left the first layer without filament. I suspect it is because the filament strip code is using relative extrusion amounts, and if my extrusion counter is past that number it ends up retracting.

Rather than fight it, I switched to 'relative extrusion measurement' which I suspect is where I should have been all along.

Re: smply3d profile for MK3

My comment above on "this only works in relative mode" was true, but my alternate solution that edited the code to make it work in absolute was not right. It worked at least once (I was watching a successful print as I posted it), but in later runs it failed miserably. I eventually figured out that it was retracting(!) by a significant amount during the front filament stripe, which then left the first layer without filament. I suspect it is because the filament strip code is using relative extrusion amounts, and if my extrusion counter is past that number it ends up retracting.

Rather than fight it, I switched to 'relative extrusion measurement' which I suspect is where I should have been all along.

You could use

G90 ;absolute positioning
G92 E0 ;zero the extruded length
-- Do initial priming line here
G92 E0 ;zero the extruded length again

Re: smply3d profile for MK3

Instead of making absolute positioning work, I just switched to relative. Reading around, there was no real advantage to absolute, some (slight) advantage to relative. Also, to me relative makes gcode easier to read/edit.