KC1SA

I think I've tried to copy and rename the definition .json file to a new name but I don't recall seeing it in the pick list from within Cura. Another question, when I edit my proifle with catchy names list "A30T_Fine_no_tower" - Draft 0.1mm alway shows up but greyed out in the profile name. How does one get rid of the Draft - 0.1mm from showing up. It's a nitpicky thing but just wondering how to get rid of it.

Making the change tot he A20T file worked but what is odd is this. When I installed 4.9 I did not uninstall 4.8. Wouldn't it have been nice that any settings I had set in 4.8 would have automatically been set in 4.9 after the install? Secondly, I added the GeeeTech A20T from the default printers in the installation and went through the initialization. I then customized the A20T to the appropriate size platform the A30T is and renamed in Cura the printer name to GeeeTech A30T. Wouldn't have been nice to have Cura create a new def file in the definitions folder of my GeeeTech A30T? If I didn't remember what my initial choice was (GeeeTech A20T) I would have never been able to add the "platform": "geeetech_a30s_platform.stl", to the appropriate definiation .json file. Where the heck does Cura store or equate what I rename a printer to in relation to the definition file?

Updated from 4.8 to 4.9 and trying to understand printer naming. I have a GeeeTech A30T that I created profiles for in version 4.8. I installed 4.9 and I think I used the GeeeTech A20T as a starting point when going through the installation and adding a printer. I've imported my 4.8 profile and printing seems good so far but I'm trying to get the build plate STL file to show and I'm perplexed. I've renamed my printer to GeeeTech A30T but I don't see that name in any of the resources. How do I find the json file to add the "platform": "geeetech_a30s_platform.stl", to the file so the image shows on the build plate??

I have a profile for my printer I got from a forum and for the most part I'm pleased with the results. I run PLA only and have printed temperature towers to get the optimal temperature setting for my material. My machine is a 3 extruder - 1 mixing hotend machine. With the multitude of settings when setting up a Cura profile, is there a go to manual / book to reference to really know how each setting impacts the slice and print result? Currently my profile works well but it needs tweaking. I do get stringing and some rough surfaces on vertical surface; some but not all. The stringing and rough surfaces seem to be impacted by the direction the x-axis is moving; stringing primarily happens when a right to left movement and rough surface seem to happen when a left to right movement. I'm not looking for "the answer" but really wondering if there is a reference manual / workshop / video tutorial on the subject. Most of the beginner / entry level videos are too fundamental and I think I'm more of an intermediate level user. Many thanks in advance for the assistance. Steve

Yes,. that looks like it eliminated the issue. Thx.

I guess that's why that classify you as an expert, I'm just a hacker.. Thanks for the advice, I'll have to check that

Ok. I uninstalled all the versions of Cura I have on my laptop. I very carefully added my profiles. What I may have done in the previous installation is NOT set up the extruder temperature for all THREE extruders. This time around I made sure they are all set to the right temperature and I have success.... at least once. :-). I set all the hotbed temperatures to the same value. This is a Geeetech A30T, so it has three extruders (T0, T1, T2) but only one hot end. I still have to set the temperature for all three extruders even though there is only one hot end. That is fine, ideally it allows you to run slightly different plastics in each extruder, but in practice Geeetech recommends use all the same temperature plastics in the three extruders. So I have success and thank you for making me doubt myself on the set up, sometime we can't see the forest for the trees. Now I have another small issue. I did a slice using one of my profiles, which I have to make sure I didn't do anything stupid. I did look at all three extruders and they are all identical with the same temperature settings. This one slice I added support which I haven't experimented with yet on this machine. When I printed, after the first layer the extruder turned off. Hmmmm. So I looked at the g-code and it looks like the slicer inserted a shut down of the hot end right after printing the first layer. Again, this is the same profile that worked fine, just I added support this time around. I'm using he middle extruder only (T1), here's and excerpt of the g-code; ;Generated with Cura_SteamEngine 4.8.0 T0 M140 S60 M105 M190 S60 M104 S214 M104 T1 S214 M105 M109 S214 M105 M109 T1 S214 M82 ;absolute extrusion mode G28 ;Home G1 Z15.0 F6000 ;Move the platform down 15mm G92 E0 G1 F200 E3 G92 E0 G92 E0 G92 E0 G1 F2400 E-6.5 ;LAYER_COUNT:275 ;LAYER:0 M107 G1 F600 Z1.3 G0 F2400 X158.493 Y131.104 Z1.3 ;TYPE:SKIRT G1 F600 Z0.3 G1 F2400 E-0.12473 G1 F1800 X158.876 Y130.666 E-0.0957 .. .. .. G1 F600 Z1.3 G0 F2400 X290 Y290 Z1.3 G1 F1500 E-1.97648 G1 F600 Z1.3 G92 E0 T1 G92 E0 M104 T0 S0 -- Why did the slicer insert this? G1 F2400 E-6.5 G0 X290 Y290 Z1.3 G1 F600 Z1.3 G0 F2400 X180.731 Y149.227 ;TYPE:SKIRT

In a three extruder machine the extruders are T0, T1, T2. At least that's my understanding. When I send manual G-codes those are the 'tools' I select to move filametn.

I double checked and sure enough these are all set to 214 so why is this code in my g-code? 1 F1800 X169.622 Y157.177 E33.99899 G0 F7200 X170.264 Y157.254 G1 F1800 X170.775 Y157.764 E34.017 G1 F1200 E18.017 G1 F600 Z6.55 G92 E0 T0 G92 E0 M104 T2 S204 G1 F1200 E15 G1 F600 Z5.55 ;MESH:cutbottom.stl G0 F7200 X289.421 Y279.291 G0 X289.887 Y280.19 ;TYPE:PRIME-TOWER G1 F2100 E16 G1 F3600 X291.8 Y280.002 E16.04795 G1 X293.713 Y280.19 E16.0959 G1 X295.55 Y280.747 E16.14378 G1 X297.24 Y281

not these... these are all set to 214C.

I'm somewhat new to multi-extruder 3D printing. I've creating three object and assigned them each unique filament color, then merged them and sliced the object. I have the Material temperature set to 214C for all parameters including the standby temperature, the build plate to 60C. I've double checked the preference profiles and the printer profile to make sure these temperatures are the case. I did a print and noticed the nozzle temperature was being set to 204C, then back to 219C. I reviewed the gcode Cura generated and sure enough, there are these settings in the gcode. Why? What hidden settings am I missing? Here's my startup gcode in the file; ;FLAVOR:Marlin ;TIME:2845 ;Filament used: 1.53852m, 0.649219m, 0.543324m ;Layer height: 0.2 ;MINX:147.347 ;MINY:150.2 ;MINZ:0.15 ;MAXX:300.6 ;MAXY:305.6 ;MAXZ:19.95 ;Generated with Cura_SteamEngine 4.8.0 T0 M140 S60 M105 M190 S60 M104 S214 M104 T1 S214 M104 T2 S214 M105 M109 S214 M105 M109 T1 S214 M105 M109 T2 S214 M82 ;absolute extrusion mode G28 G1 Z15 F300 M107 G90 M82 M104 S214 M140 S60 G92 E0 M109 S214 M107 M163 S0 P0.33 M163 S1 P0.33 M163 S2 P0.33 M164 S4 G0 X10 Y20 F6000 G1 Z0.8 But then this; G1 X149.2 Y160.55 G1 F1200 E-3.23499 G1 F600 Z5.35 G92 E0 T0 G92 E0 M104 T2 S204 G1 F1200 E15 G1 F600 Z4.35 ;MESH:cutbottom.stl G0 F4800 X292.8 Y284.5 G0 X291.799 Y284.5 ;TYPE:PRIME-TOWER G1 F2100 E16 G1 F3600 X291.562 Y286.90 Regards, Steve

Ok... Updating the Nvidia driver (NVS 4200m) to the release from November 2020 seemed to have solved the crashing issue of v4.8. Now on to the USB polling issue.

Cura v4.8 crashes on install on two different machines. One is Windows 10 based with an Nvidia graphics accelerator and Intel graphics. Neither graphics engine will allow the program to continue. On a Win7 64 bit machines the same result, that machine just has integrated graphics. Given up on V4.8 moved to the Aarachni engine and that seems to work (alpha version). One thing that's odd is the program constantly polls the USB ports of the machine. I'm into Ham Radio and this version of Cura cause the radio to briefly transmit for about a 1/10th of a second once every three or four seconds. REgards, Steve