I would like to find a model or a g-code file that would produce some goos testing for filament types.
I have tried some temp towers that don’t seem to be changing temps during model production. Worthless!
I would like to be able to plug in a g-code that would ramp up temps, or make adjustments to test out filament types. PLA, PLA+, and PETG.
Thanks for any suggestions.
If you’re downloading an stl and slicing it with Luban, it won’t change temperatures at the layers. That’s up to the slicer, and Luban doesn’t have that feature. If you’re downloading gcode, you can open the file and verify that it is changing the temp by searching for M104 and M109 (set nozzle temp and wait nozzle temp respectively). Here’s what I see in the Temp tower I downloaded from the forums:
clewis ~/Downloads/3D Objects  $ egrep -n 'M104|M109' SM-Original_Temp_Tower_30mm-s_retract6,5mm25mm-s_RAFT_190-225°C.gcode
146:; endingGcode,G28 X0 ; home X axis,M106 S0 ; turn off cooling fan,M104 S0 ; turn off extruder,M140 S0 ; turn off bed,M84 ; disable motors
199:M104 S190 T0
200:M109 S190 T0
8905:M104 S195 T0
16968:M104 S200 T0
25035:M104 S205 T0
33101:M104 S210 T0
41167:M104 S215 T0
49233:M104 S220 T0
57299:M104 S225 T0
65134:M104 S0 ; turn off extruder
I got those files from xchrisd’s 3D Print Guide, section 4. If you want to do it yourself, you’ll have to edit the gcode to manually insert the M104/M109 commands at the appropriate layers. I’m sure there are temp tower generators online somewhere, but I haven’t tried any.
I use this one https://teachingtechyt.github.io/calibration.html#temp.
Or at least I used to, now I make my own because there’s bridging issues and layer slowdown problems I was experiencing. Simplify3D has an easy way of changing settings at certain heights, and so does Cura using the ChangeAtZ script
Follow Brent’s advice and go deeper down the rabbit hole, that site is brilliant.
Here, I keep needing to recreate these, theres a PETG from 270 to 205 (mine spaghetti’d at 210 on fast) for the snapmaker 2, A350, it’s in the center of my bed so shout if you want me to move it for a smaller machine.
Then there’s a PLA tower 230-190 for the Snapmaker original.
gcodes.zip (3.2 MB)
If you want to open the projects in Cura slicer, get a recent copy and open these 3mf files as projects not models
3mf-cura-temperature-projects.zip (756.1 KB)
(Original models from thingyverse but lost link:)
Temp_tower_ABS.stl (817.8 KB)
Temp_tower_PETG.stl (790.5 KB)
Temp_tower_PLA.stl (776.0 KB)