I’ve seen a few posts about Cura settings, and I seem to share the problem that the retract speed setting causes issues with Cura (it won’t accept the 60mm/s and errors out) and also the Min X and Y values won’t enter for a value above 0. Anyone used the profile/settings successfully?
Can I confirm if my Cura settings for the A250 are correct? The recommended settings in the link seem to be for an older version of Cura. I am not able to set the X min and Y min values as shown; I can only set them as negative.
@Jmiller0628 Thanks for the images, I understand the X & Y min/max measurements now.
A question about the gantry height: is it measured from the bottom of the horizontal linear rail to the bed? If so, what height should the rail be at when measuring the gantry height?
In the picture that has the box that says “This is Gantry Height” I tried to illustrate that that box is the gantry height. it is from the bottom of the nozzle to the bottom of the gantry.
Thank You!
I have SM A350 as my first 3D printer. Digging around and did not understand Luban SW.
In here I first time saw Cura and Simplify 3D .
Tried with Cura, but was unable to enter required dimensions at setup.
then tried Simplify 3D . Downloaded its setting at here and modified/edited laterin Simplify 3D
Now I print my second part with Simplify3D and it is easy to follow.
Using Fusion 360 for design, then under File =>Import . Then saved as STL or OBJ file format. Both working OK. And looks lot quicker. One thing is definetly settings difference compared to Luban.
Only thing is, that using USB for print file transfer. No direct usb or wifi connection to PC. Works like a charm.
Made test prints and measured later with digital caliper and it is usually ± 0,05 mm tolerance from design.
@staff Instead of trying to provide profile for all software that the community uses, better would be to provide all the technical requirements and measurements, so the community could build these profiles. People should be able to use the software that they already use in their workflow. And optionally learn a new one (Luban). Finally, Snapmaker could have profiles for the most popular software used by the community, curated by Snapmaker and provided in a centralized place such as the Download page.
M104 S0 ;extruder heater off
M140 S0 ;heated bed heater off (if you have it)
G90 ;absolute positioning
G92 E0
G1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure
G28 X0 Y0
M84 ;steppers off
Also, @NilartPax what do you mean by “change the negatives to positives”? Can you provide screenshots?
@JKC20 Please update the support article to have correct Cura print head settings as discussed in this thread? I found the support page first, and this forum page (with better info) second, so changing the support page would make it easier for the next person. Thanks.
The values on your pasted Gcode are specific temperatures (specifically saying 205 nozzle and 70 bed), while in the slicer pre-code you are going to want the variable definitions instead. otherwise any temp settings you have wont kick in at the start of the print until the gcode commands a temperature change (if it does at all)
M104 S{material_print_temperature_layer_0} ;Start heating extruder
M140 S{material_bed_temperature_layer_0} ;Start heating bed
you will also want to command the machine to wait until those temperatures are reached before proceeding with printing with these commands after that:
M190 S{material_bed_temperature_layer_0} ;Wait for bed to reach temp before proceeding
M109 S{material_print_temperature_layer_0} ;Wait for extruder to reach temp before proceeding
That is for cura - which specifically uses the initial layer temperatures as the starting points. The original post has an error and does not use the initial layer settings. i had to fiddle around to figure that out.
if simplify3d, the verbiage might be a hair different i would have to check when i get home for you.
I was trying to use Cura and the sample provided included the M104, M140 in the image, but not in the text version. I was asking if I needed the M104, M140 and it seems like I do.
So if I am understanding you correctly, this is my new settings.
Sorry, let me just paste you my entire start gcode
M104 S{material_print_temperature_layer_0} ;Start heating extruder
M140 S{material_bed_temperature_layer_0} ;Start heating bed
G28 ;home
G90 ;absolute positioning
G1 X-10 Y-10 F3000
G1 Z0 F1800
M190 S{material_bed_temperature_layer_0} ;Wait for bed to reach temp before proceeding
M109 S{material_print_temperature_layer_0} ;Wait for extruder to reach temp before proceeding
G92 E0
G1 E1 F200 ;extrude 1mm @ 200mm/s feedrate (prime)
G92 E0
As you have it now, it could work to just move the wait for temp up
but right now you have it extruding 20mm before the temperature is reached.
on mine, G1 E1 F200 is the priming method I use, which means extrude 1mm at 200 mm/s, yours is set to extrude more than that, which is fine.
The snapmaker code likes to extrude 20mm to prime, and then wipes it off on the corner of the bed, so its a lot different than mine is
you could just leave it all alone except moving up the wait for temps to above the E20 or just paste mine instead.
I actually was considering going back to the extrude longer and wipe method snapmaker provided originally instead of my small prime anyhow. but the important part is the layer_0 to have the intial layer temp work.