Questions tagged [marlin]

Questions about the 3D printer firmware Marlin.

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How to calculate the Vref and X_CURRENT for a TMC2130 stepper driver, knowing the rated current of the stepper motor?

I have written a question about this but I found new information in this video and I want to go more to the point. My motor "rated current" is 1.4V. I assume that this is the maximum current The guy ...
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1answer
692 views

Thermal runaway triggers when raising temperature amid cooldown

I've noticed an interesting behavior on my Ender 3 with SKR Mini E3 mainboard and Marlin 2.0.x bugfix firmware. (otherwise, all other hardware is entirely stock) After the hotend/bed are commanded to ...
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1answer
1k views

Unable to compile Marlin for Anet A8

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69 views

Display/log tool temperature to higher resolution?

The default displayed and logged resolution of the tool temperature is to 1 decimal place. However, I noticed during autotuning the temperature is recorded to 2 decimal places. Is it possible to ...
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1answer
66 views

Relative move affected by home offset

I set a home offset on my Ender 3 running Marlin firmware so that it starts printing from the corner of a custom build surface which doesn't cover the entire bed: ...
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1answer
2k views

I can set the voltage and current of the TMC2130 driver manually. But, in which cases some of the components could burn up?

I need to know if something will burn up beforehand I plug all the circuits: Ramps 1.6+ Arduino Mega 2560 PSU 12 V, 15 A 2 TMC2130 V3.0 Stepper motor driver 2 Stepper motors 17hs3401 ...
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1answer
924 views

G29 Bed Level not doing anything on Marlin 2.0

I've just updated my Anet A8 with the blue bed level sensor to Marlin 2.0 . Both pressing the Level Bed button on the display or using G29 after ...
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142 views

Is there any way I can remap pins so the Z axis outputs through the extruder driver?

I have a Wanhao Duplicator i3 from which I have blown the Z axis stepper motor. I would like to be able to have all three axes of motion available for another project. I am trying to see if there's ...
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271 views

Stepper motors won't move on RAMPS 1.4

I have an Arduino Mega clone and RAMPS 1.4 together with A4988 drivers and NEMA 17 motors which won't move. Motors can be turned easily by hand both when the RAMPS is powered and is not powered. There ...
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726 views

How do I access Configuration.h?

I am very new to 3D printing and I am trying to adjust my firmware. I use the Arduino IDE 1.8.12. I downloaded the firmware from GitHub that suits my printer, but every time that I try to open the <...
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170 views

How to compile Marlin for Melzi board without bootloader?

I'm trying to enable a lot of features on my custom build of Marlin, and I'm having trouble fitting into a reasonable space limit. I'm compiling through the standard Arduino IDE with Sanguino board ...
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29 views

Printer places prints off the bed after change in bed Z-probe area settings [duplicate]

I really don't know what I am doing wrong. Since changing my bed level sensor from left of the extruder to back mount, it doesn't work proper anymore and I have some fundamental thing I don´t ...
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2answers
5k views

Marlin NOZZLE_TO_PROBE_OFFSET with glass

In my custom printer I have probe and nozzle at same height and configured Marlin this way: #define NOZZLE_TO_PROBE_OFFSET { 43, -20, 0 } On the bed I've a 2&...
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1answer
1k views

BLTouch error Marlin 2.x (on SKR 1.3)

I have some issue with my BLTouch (I'm new to bed levelling) : I compiled Marlin 2.x (for my SKR 1.3) for a Antclabs BLTouch, and everytime I power on the printer, it shows this error message: ...
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1answer
10k views

Updating Marlin Firmware - Step by Step Guide

Note: This question is meant as a wiki to include all steps that are needed to update your printer with a self configured Marlin firmware version. The answer is a wiki that is currently in development ...
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1answer
511 views

Marlin bed autoleveling confusion

I've just added a Z-Probe sensor to my custom printer (Arduino - RAMPS 1.4 - Marlin 2 ...
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1answer
319 views

Marlin 2.0.x bugfix 2nd extruder not working

I am using the SKR PRO board on a dual extruder 3D printer. I have tried Curaengine and Slic3r in Repetier-host. The printer firmware is handling the offset fine (it prints in the right spot for ...
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0answers
46 views

Command to have printer head move constantly

I am currently writing (software) and building (printing) a little control panel for my printer. I have some 2D joysticks that I want to use for X/Y and Z/E movement. The idea is that when I move the ...
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1answer
881 views

Anet A8 Marlin BLtouch moves up instead of down during homing

I have a previously working Anet A8 that I just flashed to Marlin 1.1.9 (bugfix) and installed a real BLtouch sensor. I followed setup instructions and believe my wiring is correct. When I try to do a ...
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2answers
1k views

Printer inverted Y-axis

I made a custom printer with RAMPS. I used Y-MIN endstop at beginning. After few prints I discovered that Y-axis was inverted (mirrored). I fixed Marlin firmware and now I have: ...
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1answer
194 views

Extusion rate limiting and firmware retract

One frustration I have with Cura is that it has no way to set print speed in terms of a volumetric extrusion rate, when extrusion rate is the main physical limiting factor for how fast you can print. ...
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0answers
29 views

Trying to remove autolevel from G-code - offset from bed not correct

I’ve been having all kinds of trouble with really every part of the print procedure on my Lulzbot Mini 2 that comes before the actual extrusion starts. I think I can get around 90 % of my issues ...
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1answer
1k views

Switch nozzle contact probe auto leveling with Marlin 2.0

I have a Robo R1+ which uses the nozzle contacting the glass print bed to level the printer. When the print head strikes the bed the Z-min endstops open signaling that the bed is touched. I recently ...
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0answers
65 views

Z Axis homes, then bounces up 15 mm and stays there when printing

Prusa, I3 Mk2. Marlin 2.0.3 The test model printed fine prior to installing Marlin 2.0.3. It's not the slicer or GCode. I tried several models, and all of them worked perfectly prior to the update. ...
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1answer
9k views

Where to define grid for bilinear levelling in Marlin

I'm using firmware Marlin 2.0.3 on an Anet A8 printer. I'm using a Roko SN04-N NPN bed leveller. I've managed to set up 3 points bed levelling but I wanted to try the bilinear levelling. Issue is, ...
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465 views

SKR 1.3 Thermistor input died

I've got an SKR 1.3 and the thermistor input for extruder 2 has gone bad. In firmware, I've attempted to change the TEMP_1_PIN to another in ...
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2answers
2k views

Linear advance calibration technique

Marlin has a Linear Advance calibration pattern generator, but I find it's hard to use because: It only prints the initial layer on the bed, where bed irregularities interfere with accurate reading ...
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2answers
660 views

MKS GEN L unknown motherboard error

This is my first time asking for some help on here and I have Googled, but only found a few reference to this issue. I know I am doing something dumb but I have no clue what it is. I get an unknown ...
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1answer
389 views

Bed temperature command going to 0 °C with no obvious reason when print is started

Configuration Printrun/Pronterface Slic3r 1.3.0 Windows 10 Arduino Mega + RAMPS 1.4 Marlin 1.1.9 Prusa i3 -- Hephestos BQ with following modifications: 450W PSU (230V to 12V) heatbed 3D touch led ...
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1answer
216 views

Anet A6, Marlin 1.1.x, bed leveling with sensor probe

I have an Anet A6, an SN04 sensor for the Z-axis, and Marlin 1.1.x software that has automatic bed leveling enabled. My question is (looking at the image below): "It seems my bed leveling is not ...
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0answers
309 views

TMC connection error; SSD1306

I have some trouble with my small I2S OLED SSD1306. When enabled in Marlin 2.0.1 it shows up great buuuut with a bottom line saying TMC CONNECTION ERROR. M122 in ...
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1answer
297 views

What precautions to take when flashing Marlin 2.0?

I was just informed via a comment that the TH3D Unified firmware a version of Marlin that's no longer updated and considered obsolete (1.9.X in this case) and that, since I'm flashing my firmware to ...
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1answer
129 views

Print from SD and connect to serial host at the same time

I am wondering if it is possible to print with a 3D printer from an SD card and connect to a serial host at the same time. I want to use the Marlin M118 serial ...
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1answer
335 views

Marlin firmware question for dual extruder

I've recently added a second hotend and extruder assembly to my 3D printer and I've made all the necessary changes in the firmware. I've defined the temp sensor for hotend 2, all the pins for heat and ...
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1answer
4k views

Filament spreading apart and stringy on first layer

I keep having this issue on prints where the first layer has stringy lines that don't stick together. I've tried the following things Replaced nozzle and throat Used new filament (to rule out ...
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1answer
5k views

Bed size and nozzle homing offset in Marlin 1.1.9 firmware

This is driving me up the wall, hope somebody can give me some advice... I have an Anet A8 (metal frame, so 'AM8'). Bed is the original 220x220 mm. When the nozzle is at the X/Y end stops it ...
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1answer
2k views

Replacing jerk with ridiculously high acceleration?

After a string of one problem after another with both classic jerk and junction deviation in Marlin, and coming to understand that the whole mathematical model for both of them is rather bogus (as I ...
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1answer
54 views

Inductive Sensor Causes Print To Stop

Just added inductive sensor to my printer (MKS Gen L Board) using Marlin 1.1.9 After some tweaking it works great! The problem ...
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1answer
3k views

Cura's solution to replace corners->arcs to increase corner speed?

I realized that with current Marlin I cannot use Junction Deviation with Linear Advance, see ...
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1answer
12k views

What is the difference between M420 S and M420 S1?

I have been reading through the Marlin website about ABL (Auto Bed Leveling) and I see what appears to be conflicting information. At https://marlinfw.org/docs/features/auto_bed_leveling.html it ...
2
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1answer
311 views

Printing 2x slower after upgrading to “MarlinTarantula” firmware

I have a TEVO Tarantula printer, recently I have upgraded it's firmware from the stock firmware to marlin 2.0 using this configuration repo. Since upgrading my prints take 2x the time they used to (...
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0answers
177 views

Filament change (M600) causes color mixing despite excessive purge

I have an Anet A6, where I uploaded Marlin 1.1.9, because the manual filament change on the stock firmware was really bad (90 % of the times it clogged the hotend). I've tweaked it a bit, and I'd ...
3
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1answer
2k views

What UART port to use for RPi GPIO pins on an SKR v1.3 board

I have a Bigtreetech SKR v1.3, and I'm trying to connect a Raspberry Pi to the board using the RPi's GPIO pins as opposed to using a USB connection because space is limited within the case of CR10S ...
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2answers
3k views

M502 will reset all configurable settings to their “factory defaults”, which settings are those?

From the M502 documentation page can be read that M502: Reset all configurable settings to their factory defaults. Please ...
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1answer
3k views

CR-10S / Ender5+ LCD Touchscreen Firmware Editing

How would I go about editing the LCD menus for the touchscreen? Oddly the ender5+ is supposed to be an upgrade but the ender5 (regular) has so much more stuff you can control from the lcd screen. ...
4
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1answer
2k views

Thermal runaway with specific prints

I have been experimenting with PETG on my CR-10 upgraded with an E3D all-metal hot end and Marlin firmware on the controller. I am printing with 0.8 mm nozzle at 250 °C and an 85 &...
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1answer
422 views

Chamber heating using hysteresis in Marlin

Is anyone using hysteresis with their chamber in Marlin? I have read bang-bang with hysteresis is possible when using a bed heater. I would like to do that for chamber heating. I have some lamps that ...
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1answer
1k views

Setting up UBL for the first time on Marlin 2.x on a Prusa i3, how often should I level the bed using G29?

I used to use the Marlin 1.x software that would level the bed by probing the 4 corners of my print bed (a long time ago, it's been at least 2 years since I used my printer, wasn't able to set it up ...
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0answers
71 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 ...
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0answers
584 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 ...

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