Questions tagged [marlin]

Questions about the 3D printer firmware Marlin.

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1answer
117 views

How can I determine the current value of a #defined variable?

I previously set up my Ender 3 with a precompiled binary of Marlin that already had the correct X and Y offsets for the attached BLTouch. Now I'm compiling my own, and rather than measure for myself I'...
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1answer
44 views

Getting a programatically-controlled, constant 12 V from one of the motor outputs

I'm building a device that requires five 12 V valves to be programmatically controlled as a switch. So far, I have been able to get outputs from the heated bed, extruder, and fan to be ...
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0answers
125 views

Enable pins with RAMPS and M542T stepper drivers

So, I've been building a very sturdy 3d printer (also in the future hopefully a cnc router), strongly based on this: https://www.instructables.com/id/Ard...NC-3D-Printer/ I'm using a RAMPS (1.4, will ...
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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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0answers
171 views

Printer froze mid print, stepper motor driver and MCU extremely hot afterwards. MCU seems dead now (?)

A strange problem occured while 3D printing. I've been printing for a long time now, and I consider myself fairly expeienced. normally, with every problem I've encountered with my printers (Anet, ...
6
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1answer
15k 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 ...
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0answers
3k views

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
812 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
613 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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0answers
77 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
83 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
1k 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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0answers
189 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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295 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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0answers
871 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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1answer
13k 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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0answers
30 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
6k 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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2answers
26k views

What is Thermal Runaway Protection?

What is Thermal Runaway Protection (TRP) and why should I enable it? How does one do so in Marlin?
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1answer
363 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 ...
2
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1answer
1k 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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0answers
49 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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0answers
35 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
11k 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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0answers
70 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
4k 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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0answers
501 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
750 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 ...
2
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1answer
445 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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0answers
362 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
9k views

Anet A6 Firmware

I've just finished putting my new Anet A6 together. Very nice build all together as everything fits really well. I've tried a test print and I noticed something weird: as I try to home ONLY the Z ...
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1answer
758 views

Marlin Firmware Auto Leveling only re-centers the XY-axis (Delta printer)

I'm trying to get my printer to auto level its bed, with Marlin firmware using the following: Printer: Kossel Linear plus (Delta 3D printer) Board: MKS Base V1.5 Firmware: Marlin customized I go ...
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1answer
2k views

How can I fix First Layer Adhesion with BL Touch - Tevo Tarantula

Hope someone might have a view on where to go with this. My prints were coming out pretty good, but since installing a BL Touch to the printer I've been unable to get consistent first layer adhesion. ...
2
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1answer
315 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
144 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 ...
4
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1answer
416 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 ...
3
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1answer
58 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 ...
7
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1answer
4k views

Issues with Auto Bed Leveling

I have enabled auto bed leveling on my 3D printer. I have used a 6-36 V inductive sensor with a 7805 voltage regulator running the sensor at 10.78 V. I am using Marlin 1.1.9. This is my configuration ...
3
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2answers
4k views

What is M73 Q17 S43 G-code command?

I know that M73 P19 means "Set completion progress to 19%", and I suspect that M73 R42 means "Set remaining time to 42 minutes", ...
7
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1answer
3k views

Z motor not moving during auto home

My Monoprice maker select recently fried its melzi board. So I went out and purchased a ramps 1.4 kit. I've wired it all up and Flash the firmware with marlin(most recent build). When it boots up ...
5
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1answer
2k views

Z-axis endstop not functioning after Marlin Firmware installation

I've had my Monoprice Maker Ultimate for a few months and have started doing upgrades to it. My most recent change is in upgrading the firmware to a newer version of Marlin so that I can better ...
2
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1answer
521 views

"Missing" rows on 64x128 LCD after flashing Marlin 1.1.9 onto Monoprice Maker Select v2

I've successfully flashed Marlin 1.1.9 onto a Melzi v3.5 board (the stock board for my Monoprice Maker Select v2 (v2.1?, a white-labelled Wanhao i3 Duplicator). Initially after the flash succeeded ...
2
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1answer
337 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
226 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 ...
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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 ...
4
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1answer
545 views

Cura 4.3.0 does not pause on Renkforce RF100 V2.2

Cura (version 4.3.0) has the ability to insert a post processing script to your print. I tried this for printing a key cover around my door key (similar to this question). I designed the STL file with ...
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0answers
51 views

LV8729 on kossel issues with print dimensions (steps)

I've installed the an LV8729 on a kossel, configured with SKR 1.3 and marlin 2.0 with all the jumpers configured in the same way for 16 micro steps for X Y Z axis. Everthing seems fine the printer ...

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