WIP: Cura Printer Definition/Profile for the Mini  

RE: WIP: Cura Printer Definition/Profile for the Mini

Posted by: @blackcoffeerider

[...] I haven't tested any of the Profiles except the 0.20 ones [...]

Which Cura version did you use for testing?

RE: WIP: Cura Printer Definition/Profile for the Mini

@marek-w6

Oh sorry forgot to mention 4.5

I haven't tested this with 4.6 yet and i am not sure if it is downward compatible at all.

RE: WIP: Cura Printer Definition/Profile for the Mini

General note since I can't find a way to edit my original post:

Please be careful using this - while it works fine for me it might break your machine and i take no responsibility for any damage caused to your machine!

RE: WIP: Cura Printer Definition/Profile for the Mini

unable to add printer

cura reports "

IndexError: Unable to find extruder definition with the id [Original_Prusa_mini_extruder_0]"

some idea?

RE: WIP: Cura Printer Definition/Profile for the Mini

@pidra - did you move the Printer Definition files into the corresponding folders as described here: https://help.prusa3d.com/en/guide/how-to-import-profiles-to-cura-4-x-windows-macos_17848 ?

RE: WIP: Cura Printer Definition/Profile for the Mini

I found some issues with the max jerk settings and speeds - seems i forgot to save a file at some point - sorry for that.

Please find attached the state of today. Cura_Prusa_Mini_Profile_20200425_2120

RE: WIP: Cura Printer Definition/Profile for the Mini

@blackcoffeerider

yes, I followed the instructions

RE: WIP: Cura Printer Definition/Profile for the Mini

@pidra

Ok - so i archived all my old settings and started completely fresh and i am able to reproduce the error - at the moment i am a bit stomped - the ID was missing indeed - but when i add it it doesn't seem to make a difference. Will get back to you when i solved this.

Thanks for letting me know 

RE: WIP: Cura Printer Definition/Profile for the Mini

Ok - so for the sake of my life I don't realy understand what was going on there and why it worked while i still had my old configs in place.

I had to add/change the version numbers in the files and rename them also to match each other and the extruder name had to be the same as the file name (!?). I tried 3 times in a row now with a fresh settings-folder and it seems to work now.

Please remove the old files when copying over the new ones.

Note that i moved the "Manufacturer" description to "01 Prusa3D (unofficial)" so that we dont have to scroll all the way down.

Current version: Cura_Prusa_Mini_Profile_20200426_1335

Please let me know how things are going.

Thanks & Regards,

Martin

RE: WIP: Cura Printer Definition/Profile for the Mini

WARNING: the profile uses absolute extrusion while the startup G-Code uses relative extrusion as PrusaSlicer does - i will have to change that - in the meantime please tickt the relative extrusion in Cura under "experimental settings" to get a working print!

RE: WIP: Cura Printer Definition/Profile for the Mini

@blackcoffeerider

thanks for the new profile, it loaded this time so i will try now.
Thanks and regards

Karel

RE: WIP: Cura Printer Definition/Profile for the Mini

The "Quality" profiles need some rework because there is a quiet severe amount of stringing with some tests at the moment...

I also found some issues with the startup-gcode (fixed print temperature amongst others)

Will release an update soon.

In the meantime please check that your startup G-Code Looks like this:

M73 P0 R275; Progress?

M201 X1250 Y1250 Z400 E5000 ; sets maximum accelerations, mm/sec^2

M203 X180 Y180 Z12 E80 ; sets maximum feedrates, mm/sec

M204 P1250 R1250 T1250 ; sets acceleration (P, T) and retract acceleration (R), mm/sec^2

M205 X8.00 Y8.00 Z2.00 E10.00 ; sets the jerk limits, mm/sec

M205 S0 T0 ; sets the minimum extruding and travel feed rate, mm/sec

M107

G90 ; use absolute coordinates

M83 ; extruder relative mode

M104 S170 ; set extruder temp for bed leveling

M140 S{material_bed_temperature} ; set bed temp

M105

M109 R170 ; wait for bed leveling temp

M190 S{material_bed_temperature} ; wait for bed temp

G28 ; home all without mesh bed level

G29 ; mesh bed leveling

M104 S{material_print_temperature} ; set extruder temp

M105

G92 E0.0

G1 Y-2.0 X179 F2400

G1 Z3 F720

M109 S{material_print_temperature} ; wait for extruder temp

; intro line

G1 X170 F1000

G1 Z0.2 F720

G1 X110.0 E8.0 F900

M73 P0 R274; Progress?

G1 X40.0 E10.0 F700

G1 E-1.0

G92 E0.0

M221 S95 ; set flow

G21 ; set units to millimeters

G90 ; use absolute coordinates

M82 ; use absolute distances for extrusion (Cura default)

;M83 ; use relative distances for extrusion (Prusa Slicer Default - activate in your profile to avoid blobs!!)

RE: WIP: Cura Printer Definition/Profile for the Mini

my start g-code is

M140 S80
M105
M190 S80
M104 S230
M105
M109 S230
M82 ;absolute extrusion mode
M73 P0 R275; Progress?
M201 X1250 Y1250 Z400 E5000 ; sets maximum accelerations, mm/sec^2
M203 X180 Y180 Z12 E80 ; sets maximum feedrates, mm/sec
M204 P1250 R1250 T1250 ; sets acceleration (P, T) and retract acceleration (R), mm/sec^2
M205 X8.00 Y8.00 Z2.00 E10.00 ; sets the jerk limits, mm/sec
M205 S0 T0 ; sets the minimum extruding and travel feed rate, mm/sec
M107
G90 ; use absolute coordinates
M83 ; extruder relative mode
M104 S170 ; set extruder temp for bed leveling
M140 S60 ; set bed temp
M109 R170 ; wait for bed leveling temp
M190 S60 ; wait for bed temp
G28 ; home all without mesh bed level
G29 ; mesh bed leveling
M104 S215 ; set extruder temp
G92 E0.0
G1 Y-2.0 X179 F2400
G1 Z3 F720
M109 S215 ; wait for extruder temp

; intro line
G1 X170 F1000
G1 Z0.2 F720
G1 X110.0 E8.0 F900
M73 P0 R274; Progress?
G1 X40.0 E10.0 F700
G92 E0.0

M221 S95 ; set flow
G21 ; set units to millimeters
G90 ; use absolute coordinates
M83 ; use relative distances for extrusion

during the test I had to stop printing because the nozzle rubbed against the bed and I was afraid I would it destroy

RE: WIP: Cura Printer Definition/Profile for the Mini

Yes the startup code you show is the old one still in the latest version - feel free to change it.

In regard to the nozzle rubbing when we hop from the priming-line to the center area we might have to add a Z offset - i have to check in Prusas G-Code how they do it - other than that: is your bed leveling correct?

RE: WIP: Cura Printer Definition/Profile for the Mini

Additional question are you printing with ABS or PLA? I see Temperature of 230° in your G-Code. M104 S230 <=

Then you have to adjust the g-code as mentioned above otherwise you will not be able to print - i unfortunately hard-coded the Temps for PLA!

RE: WIP: Cura Printer Definition/Profile for the Mini

bed leveling was done correctly.

I wanted to try printing a model airplane, where it states a temperature of 230° for PLA

RE: WIP: Cura Printer Definition/Profile for the Mini

Hi @blackcoffeerider,

Thanks for working on the cura profiles! Have you had any further luck with updating them?

I'm having a really hard time getting my .25mm nozzle dialled in for miniatures, and was hoping this would help out 🙁

Cheers,

Andrew

RE: WIP: Cura Printer Definition/Profile for the Mini

Hi @haps-grayprusa,

i waas pretty busy this week and hope that i will be able to fix some issues i found - at the moment I have stringing from hell issues that i don't know how to resolve. I hope to have an update Wednesday 6th of May 2020 (no promise!). Also I have zero experience with smaller nozzle sizes and miniature printing at all - but i hope this can help at the end.

Regards,

Martin

RE: WIP: Cura Printer Definition/Profile for the Mini

Any update on your efforts? Really looking forward to more.