Unanswered Questions

874 questions with no upvoted or accepted answers
8 votes
0 answers
175 views

Marlin 2.0 Firmware temperature jumping on LCD when trying to configure UBL

Flashed Marlin 2.0 on my Folgertech 2020 Prusa i3 variant. Calibrating seems to have gone smoothly until I tried to set up UBL. Saved the mesh into EEPROM with the ...
7 votes
0 answers
125 views

What options exist for augmenting the automatic bed-leveling?

When I print this file, one section smears. The print head is dragged through the soft filament. At first I thought my aluminum bed was warped, so I upgraded to a glass bed. Test prints were much ...
6 votes
2 answers
224 views

Creality Ender-3 V2 motors going insane

I recently started using my Ender 3 V2 again because I needed it to print a hook. I went through multiple problems that I could solve by updating the firmware but after starting the print, I heard a ...
6 votes
0 answers
1k views

Does matching whole Z-motor steps for layer height actually matter on Ender 3?

This question asks about computing the fundamental layer height unit for full Z-motor steps, on the basis of a theory that layer thickness can be inconsistent if the height is at different micro-...
5 votes
0 answers
238 views

BLTouch not probing all points and motors making really loud noises since rebuild of latest Marlin (new hot end installed and BLTouch)

Please listen to this video, which illustrates the issue, with the sound on. Link to configuration.h and configuration_adv.h ...
5 votes
0 answers
2k views

Inconsistent layer stacking

I'm throwing this out that as a long shot, as I'm not sure if anyone can help me, but maybe there's someone out there who had a similar issue and might have successfully dealt with this before. I'm ...
5 votes
0 answers
1k views

Horizontal defects when linear_advance enabled?

What could cause that? When linear_advance (v1.5) is "off" (M900 K0) - everything is uniform and smooth, only corners are protruding as expected. When it is "on"...
5 votes
1 answer
552 views

Makerbot Smart extruder+ heat block and nozzle question

I am looking for information on the smart extruder+ heat block and nozzle? I have looked online and from several forums come to the conclusion it is either a MK10 or MK11 assembly. Can anyone shed ...
4 votes
0 answers
68 views

What does CRASH_RECOVER mean from Octoprint?

When watching the Raspberry PI daemon.log while running OctoPrint, I see contents like the following, which occasionally includes enqueing "CRASH_RECOVER" (but I do not see "...
4 votes
0 answers
903 views

CR-10 MAX - Marlin Firmware settings help

I’m trying to build firmware for the CR-10 MAX. The git has no config example for this machine. And this is the first time for me to look into the settings. I’m ...
4 votes
0 answers
2k views

How can I correct *second and third layer* elephant foot?

I'm attempting to print this print-in-place bag clip (in the 80 and 100 sizes). Early prints came out well, except that my persistent elephant foot resulted in locking the hinge. Oddly, a few days ...
4 votes
0 answers
138 views

What foundation designs are adequate for a 3D-printed one-floor building larger than 200 square meters?

With the increasing price of lumber and construction materials in the U.S., 3D-printed houses become a more viable way of building houses. Designing the foundations of mini-houses isn't difficult. ...
4 votes
0 answers
334 views

Retraction fine but recovery occasionally just doesn't happen

I'm having issues with retraction. My printer prints very well normally, but has an intermittent problem with retraction: the retraction itself always happens, but sometimes the subsequent recovery ...
4 votes
0 answers
934 views

Connecting 128x64 OLED to BIGTREETECH SKR mini E3

I'm trying to connect a 128x64 OLED display with the SH1106 driver for the BIGTREETECH SKR mini E3 printer controller board which uses the 32 bit STM32f103RC MCU. Note that it works fine with my ...
4 votes
0 answers
385 views

Difference between Creality V2.1/V2.2 boards? Where to find datasheets?

I can't find an official datasheet for either board. Does anyone know where to find this information? Something that has max voltages, pinouts, etc. Also, what's the difference between the V2.1 and ...

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