Cura print settings  

Re: Cura print settings

Adding a Z0.15 argument to a G1 move should, indeed, move the nozzle to 0.15mm above the bed, assuming the MBL has completed successfully. You shouldn't need to home the axes again (G28), either. If your host program has a terminal, you can test this pretty easily yourself while the hotend is cold and not extruding anything, just do the homing (G28 W), leveling (G80), then look at your LCD at the Z height (top right corner) or run M114 to get the current XYZ position the printer thinks it's at. Then you can run G1 Z5, G1 Z0.15, etc, to move up and down and confirm that it is in fact moving as expected.

I've tried something like this with success:


M104 S{material_print_temperature} ; set extruder temp
M140 S{material_bed_temperature} ; set bed temp
G21 ; set units to millimeters
G90 ; use absolute positioning
M82 ; absolute extrusion mode
G28 W ; home all without mesh bed level
G80 ; mesh bed leveling
G1 Z5.0 ; ramp up while heating
M190 S{material_bed_temperature} ; wait for bed temp
M109 S{material_print_temperature} ; wait for extruder temp
G92 E0.0 ; reset extruder distance position
G1 Y-3.0 Z0.15 F1000.0 ; go outside print area
G1 X60.0 E9.0 F1000.0 ; intro line
G1 X100.0 E21.5 F1000.0 ; intro line
G92 E0.0 ; reset extruder distance position


Re: Cura print settings

@evan: testing it right now, it seems to work very well
Just a point: I had to change the filament size manually (adding a new material), but looking at your json config the default material diameter is set:

` "material_diameter": { "default_value": 1.75 },`

Maybe we should add materials among the configurations?

Re: Cura print settings

@evan: testing it right now, it seems to work very well
Just a point: I had to change the filament size manually (adding a new material), but looking at your json config the default material diameter is set:

` "material_diameter": { "default_value": 1.75 },`

Maybe we should add materials among the configurations?

Glad it's working!

I'm not 100% sure what you're meaning here; it kind of sounds like you're saying the default material diameter being set was bad or wrong somehow, but that is indeed the default material diameter. Aside from retraction defaults, it's one of the few material defaults it makes sense to set in the printer definition, in my opinion.

If you're just suggesting that we start adding materials to the github repo so they can be dropped in as configs as well... sure! I mean, anyone is welcome to make an issue to suggest a change, or fork and make a pull-request with the material files to add. I may even get time to do it myself.

As we say in the open source world, patches welcome 🙂

Re: Cura print settings

(...)
If you're just suggesting that we start adding materials to the github repo so they can be dropped in as configs as well... sure! I mean, anyone is welcome to make an issue to suggest a change, or fork and make a pull-request with the material files to add. I may even get time to do it myself.

Yes, I meant that. And yes, I can make a PR (in this case is very simple)

I'm interested because, even if I always used slic3r, I wasn't able to properly slice some files, while with Cura I succeded at first try.
Also, it seems to me that Cura prints better supports.

Re: Cura print settings

Alright, success!

I created an extensive printer definition file and printed a calibration cube using the stock "Normal Quality" settings, but at 0.2mm layer height in Prusa PLA. The results are fantastic for zero tuning!

~~~

The repository is here: https://github.com/Apsu/cura-i3-mk2
And a direct link to the definition file is here: https://raw.githubusercontent.com/Apsu/cura-i3-mk2/master/prusa_i3_mk2.def.json

Please read the instructions in the repository for more details on how to use the definition.

Happy printing!

Thank you.. Testing it now! 🙂
Seems to work as good on Cura 2.3.0 Beta as it was on Cura 15.04.6.

Re: Cura print settings

I just downloaded Cura 2.3 beta and I'm not having any luck. First, I'm using the settings from GitHub posted somewhere near the beginning of this thread. I've tried the native settings and a couple different changes but generally my first layer is not sticking to the bed. I'm not have any problem with bed adhesion with Slic3r, so I know the machine is solid.

Is there some magical setting that I'm missing? Just curious if it's me, my inexperience with Cura, or something more profound.

-tom

Re: Cura print settings

I have no luck either. With the settings postet above and imported in cura 2.3 beta the printer does not start to heat. Allthough the settings is the programm are correct. Any tips?

Re: Cura print settings

I started a issue on the Cura Github repository for this problem, could someone explain there what the issue is please?

https://github.com/Ultimaker/Cura/issues/1019

Re: Cura print settings

Is the Prusa staff working with the Cura team on this?

I'll drop them an email and see if one of the team can help out. They are good to work with and like adding native support to other printers.

Re: Cura print settings

Subbing to this. I wanted to give Cura a try and the first layer wont stick.

Re: Cura print settings

For folks having trouble with their extruder or bed not heating, be sure that you don't have any lingering settings from an older installation of Cura. It's a known issue with the 2.3 beta that previous installations will tend to override various settings in 2.3, including temperatures and retraction settings.

In my github repository I included instructions for where to find these settings and get rid of them. Please note that I didn't create Cura and have no control over this bug. It is what it is. If you want to try 2.3, you have to clear out old settings, and then not run the older version again (or it will recreate the problem). Simply uninstalling the old version isn't sufficient, as that won't clean out the old settings files.

The updated instructions are here: https://github.com/Apsu/cura-i3-mk2/blob/master/README.md

Re: Cura print settings

Is the Prusa staff working with the Cura team on this?

I'll drop them an email and see if one of the team can help out. They are good to work with and like adding native support to other printers.

Josef emailed me about my definition, and I'm waiting on him to get back to me.

That said, I already submitted a pull request to the Cura repo for the definition and got it merged: https://github.com/Ultimaker/Cura/pull/978

So the next release they produce will have this definition in it already 😀

Re: Cura print settings

Josef emailed me about my definition, and I'm waiting on him to get back to me.

That said, I already submitted a pull request to the Cura repo for the definition and got it merged: https://github.com/Ultimaker/Cura/pull/978

So the next release they produce will have this definition in it already 😀

That's great! I sent a link to this thread to one of the staff developing Cura, so perhaps he will chime in at some point 🙂

Re: Cura print settings

Just to put a spanner in the works, and one that many will not agree on, Cura is not a great slicer for this printer. In my very humble opinion, it is 4th or 5th best behind (in Alphabetical order) Kisslicer, Simplify and Slic3r with the contender for fourth place being Craftware.

Peter

Re: Cura print settings

Just to put a spanner in the works, and one that many will not agree on, Cura is not a great slicer for this printer. In my very humble opinion, it is 4th or 5th best behind (in Alphabetical order) Kisslicer, Simplify and Slic3r with the contender for fourth place being Craftware.

Peter

I don't necessarily disagree, I don't have a strong stake in it either way. It's just that this sort of work was within my skillset as it's part of my daily career and I at least wanted to *try* the new beta 😛

That said, their new slicing engine seems like it provides a lot of really exciting new features and flexibility, so I think it's worth testing out and exploring further.

Re: Cura print settings

I think it's worth testing out and exploring further.

Absolutely agree.

I think the point I was trying to make is that Cura is designed to be used with one particular make of printer and the comments I have seen on their forums regarding other printer makers seem to imply that the devs there have no interest in the interaction with those other makes. And from their point I would also agree that there is no financial incentive for them to assist users of other printer brands.

Peter

Re: Cura print settings

I think it's worth testing out and exploring further.

Absolutely agree.

I think the point I was trying to make is that Cura is designed to be used with one particular make of printer and the comments I have seen on their forums regarding other printer makers seem to imply that the devs there have no interest in the interaction with those other makes. And from their point I would also agree that there is no financial incentive for them to assist users of other printer brands.

Peter

Sure and I get where you're coming from, but that's the beauty of being an open source project. The only difficulty comes when the project maintainers nix or delay accepting changes that don't necessarily benefit the printers their benefactor company makes. I got my change into the project pretty quickly, and even had feedback on changes they thought were reasonable (and I agreed with), so there was some back and forth and further development along the way.

Looks to me like they just want a quality slicer regardless of printer, and if other folks are willing to do the work for other printers they're happy to take it onboard.

Re: Cura print settings

If you press the 'download beta' button on the cura website, the prusa mk2 is included. Printing with it right now.

Re: Cura print settings

If you press the 'download beta' button on the cura website, the prusa mk2 is included. Printing with it right now.

Cool! Sounds like they cut another release that has my pull-request in it. That'll certainly make things easier 😀

Re: Cura print settings

I think the point I was trying to make is that Cura is designed to be used with one particular make of printer and the comments I have seen on their forums regarding other printer makers seem to imply that the devs there have no interest in the interaction with those other makes. And from their point I would also agree that there is no financial incentive for them to assist users of other printer brands.

One of the main Cura dev's here. I'd like to clarify this a bit more. Most of the work done on Cura (read 95%>) is paid for by Ultimaker, so that also means that 95% of the stuff done with Cura will be decided upon by Ultimaker. That does not mean that we don't have any interest how other printers work with Cura. We do, but we just can't put a whole lot of time in it.

There is some motivation for Ultimaker to have as many printers in there as possible, because more printers means more users and more users tend to mean more people willing to develop for it. As a result we do review all pull requests we get and answer questions regarding development.