Questions tagged [marlin]

Questions about the 3D printer firmware Marlin.

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4
votes
0answers
581 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 ...
5
votes
1answer
564 views

How to find Printrboard pin numbers in Marlin

I'm looking for a Printrboard board image with the pin numbers labeled. Specifically for Rev. F. Specifically, I'd like to know what each pin on the EXP1 and <...
3
votes
2answers
3k 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", ...
0
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0answers
50 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 ...
2
votes
1answer
447 views

What are the variables for PID control? How to use M301? How to use this command to switch from PID to bang-bang?

I'd like to have the 12V PID output of an old Printrboard hotend control a relay that attaches to a 120V crockpot for something I'm making. I have everything working fine using a relay, but because ...
3
votes
1answer
495 views

Some steppers only rotate one way on RAMPS 1.4

I have a RAMPS 1.4 tester code for Arduino MEGA, only need stepper motors and drivers connected. The code in a working setup moves steppers in both directions but in my setup does something wrong: ...
5
votes
1answer
2k views

Starting G-code for auto Z probe offset

So, I like to take off my glass build plate from my printer bed because I don't like to put any force on the bed bearings but this presents an issue. I have an inductive bed leveling probe and each ...
5
votes
2answers
2k views

Setting Junction Deviation in firmware has no effect

I have built a 3D printer with Marlin bugfix-2.0.x forked from github. I am attempting to set the default value for junction deviation so that I don't have to change it through the printer's screen/...
4
votes
1answer
483 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 ...
1
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0answers
15 views

How far off-plane of a 4th-corner probe should be cause for concern during bed leveling?

On my TAZ Pro, after modifying and reinstalling my build surface, I have the following verbose output from running self-calibration: ...
2
votes
2answers
405 views

Anet A8 Clone LCD not working after flash

My Alfawise EX8 (Anet A8 Clone) had an issue, so I flashed the firmware provided on the GearBest page. After the flash the LCD is no longer doing anything and I can't really identify the LCD to ...
1
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1answer
558 views

CR-10 Ignoring Z-Stop Switch, Keeps Trying to Lower

I have a CR-10 with TH3D's most recent firmware on it and an EZABL (Plug & Print Auto Bed Leveling Kit) installed. My problem is that when I select "Auto Home", the printer ignores the Z-stop ...
4
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2answers
585 views

Getting wrong measurements on my Kossel Linear Plus after installing SKR 1.3 with Marlin 2.0

So I've switched the Trigorilla board in the printer with a SKR 1.3 with TMC2208 drivers and installed the latest Marlin 2.0, with a config based on this one. You can find the Configuration.h here, ...
2
votes
1answer
1k views

How to extend Marlin to support additional movement axis?

On a RAMPS 1.4 it is possible to mount 5 stepper motors: X,Y,Z steppers are used for ...
2
votes
1answer
63 views

Reprogram Marlin to assign endstop pins to arbitrary tasks [Arduino Mega]

Can someone point me out an appropriate entry code for this task in Marlin source code?
5
votes
1answer
469 views

Where to enable user interface encoder in Marlin?

I am trying to configure Marlin for a Ramps 1.6 board. I have an I2C 4x20 character LCD enabled. I have the LCD working with #define LCD_SAINSMART_I2C_2004 I ...
4
votes
2answers
10k views

G29 Auto Grid Leveling Doesn't Do Anything

I have an Ender 3 Pro, recently added a BLTouch v3, flashed a bootloader, and I'm now attempting to configure TH3D U1.R2.15 firmware. I have only modified configuration.h, haven't touched any other ...
3
votes
1answer
132 views

Hotend drops to 175 ºC once extrusion starts (MINTEMP error reported)

Hotend drops from 205 °C to 175 °C, and then the printer errors MINTEMP. How can I fix this? Fan is not starting yet. ...
6
votes
1answer
5k views

How to set up Marlin to use a heated chamber?

I have an infrared lamp I'd like to use to heat my chamber. Right now I don't have plans to install a cooling fan, but I will if I need to. This question pertains to Marlin (2.0, preferably) in ...
1
vote
1answer
3k views

Weird temperature reading using thermistor on MKS GEN L v1.0 AUX-2 analog pins

Temperature is showing about 680 °C at room temperature. When I make it "hotter" by holding my thumb and index finger on it, the temperature does increase. So it is responding to temperature ...
2
votes
1answer
1k views

Configuration of the Anet A6 full graphic LCD 12864 on an Anet A8

I finished fixing my Anet A8 about the 3DTouch sensor working with the LCD2004 stock display, I am installing the full graphic display LCD 12864 (for Anet A6) but when I compile Marlin 1.1.9 the ...
4
votes
1answer
567 views

Show Build date and time in Marlin 2.0

Is there a command to show the compile date and time of the Marlin 2.0 firmware? Also, is there a way to show this info at boot up?
3
votes
1answer
201 views

RAMPS 1.4 Stepper's not getting a good signal

Running on the Marlin 1.1 firmware, for this issue, most other variables of the printer can just be assumed (It's a CoreXY design, but think i3 for my current testing). (Highlighted my only lead in ...
4
votes
3answers
157 views

Bigtreetech upload stalled after uncommented REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER

I recently bought a BigTreeTech SKR V1.3 and uncommented REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER and clicked the upload button but faced an error that says: <...
3
votes
1answer
2k views

Y-axis layer shifts with recent Marlin on Ender 3

Since upgrading from the manufacturer's firmare to recent Marlin (first 1.1.9, then 2.0.x git HEAD), I've been having significant model-dependent (didn't happen for first few things I tried to print; ...
1
vote
1answer
116 views

Setting the startpoint of the EZABL 3x3 mesh

How do I set the startpoint of the EZABL 3x3 mesh. The startpoint is hitting my bed clip.
2
votes
1answer
359 views

Marlin on Arduino Mega 2650 and RAMPS 1.4

I have been messing around trying to flash marlin 1.1 onto my Arduino Mega 2650 and RAMPS 1.4. I have Managed to get it to upload fine however it will not upload with the LCD I want. I am trying to ...
1
vote
1answer
59 views

Printer doesn't lift Z between each probe

I don't remember making a change to marlin but today when I tried to probe my bed my Z probe homed and slowly went downwards until the probe detected the first point. then without lifting it it just ...
1
vote
1answer
79 views

Botched firmware upgrade - did I destroy the stepper drivers?

I attempted upgrading my Ender 3 firmware to Marlin 1.1.9, and due to inability to find the directions about the Sanguino variant pin layout file, stupidly built with the "standard" (Arduino) file. ...
3
votes
2answers
186 views

Using both .gcode and .gbr files in a hybrid 3D printer + circuit etching machine? (RepRap 1.4 with Marlin firmware)

I'm making a hybrid 3D printer and circuit etching (CNC milling) machine that can both 3D print and etch prototype circuit boards. I'll be using Marlin firmware with an Arduino Mega & RepRap 1.4 ...
1
vote
1answer
14k views

How to activate Power Loss Recovery in Marlin?

Standard Marlin has one problem: when the power suddenly is gone, the print is gone. Prusa and many china printers however come with "Power Loss Recovery" or "Power Out Protection" or similar. But ...
7
votes
6answers
16k views

BLTouch Probing Fails Intermittently

I just installed my (v3) BLTouch with a vanilla version of Marlin (1.1.9) on my Ender 3 and everything seems to work fine (including auto home) except the probing. It repeatedly does the first three ...
2
votes
0answers
302 views

Marlin endstop hit message deciphering/real position

Similar to, but different from, Marlin, end stops, and position report - possible bug? This is roughly the same question, but I'm trying to understand the endstops hit response from Marlin. I'm ...
2
votes
1answer
298 views

How to make menus more responsive in Marlin 1.1.9

I have an AM8 with an MKS GEN 1.4 board with a Bowden extruder at the moment. What I would like to do is to make my menus a bit more responsive, similar to what the guy at Lokster Space has done with ...
2
votes
2answers
2k views

What do I need to do to recalibrate my printer after updating the firmware?

I just updated my Maker Select Plus from the stock (I believe RepRap-based) firmware to Advi3pp, which is Marlin based. The printer starts up and everything seems okay, but I haven't actually tried a ...
1
vote
1answer
384 views

How to connect BLTouch sensor to Alunar M508 using LSEE 3D v1.0 board?

In the process of updating my printer (Alunar M508), I decided to add "Auto Bed Leveling" using a BLTouch sensor. After doing a lot of Googling: I found firmware that will upload and work with ...
6
votes
1answer
2k views

Change hotend thermistor input in Marlin

I have a Marlin driven Prusa i3 clone, by accident I cut through both thermistor wires for the hotend while it was powered on. The Arduino reset and the hotend thermistor no longer work. Since there ...
2
votes
0answers
184 views

Display locks when executing G-code for laser cutting using Marlin on RAMPS board

I'm working on a Laser cutter. I’m using the RAMPS 1.4 and Marlin software. To make the Marlin software work with a laser I’m inspired by this blog from dreammakercnc: Marlin Firmware modification for ...
2
votes
1answer
1k views

What pins do I use for UART control on a RUMBA board for tmc2208?

I have been looking in the Marlin firmware for about an hour or two now to find what pins I should use for UART for my tmc2208 drivers and I have come up with nothing. Does anyone know what they are ...
3
votes
2answers
500 views

Tronxy Marlin boards (two of them) reboot when asked to heat bed

I have two Tronxy 2.0 V5 Marlin boards that reboot whenever heat is applied to the bed. The bed has been swapped (because I thought that was the problem) for a new shiny one. The thermistors, too, of ...
4
votes
1answer
775 views

Laser LA03-5000 wiring to RAMPS 1.4

I'm totally lost. I have been searching about two days how to correctly wire Blue Laser LA03-5000 to RAMPS 1.4 board. This laser has 12 V input and separates PWM/TTL wires. I have found out how ...
0
votes
0answers
201 views

Grayscale laser engraving with Ramp1.4

I have a Reprap Guru Prusa i3 v2 3D printer. To this I added a 5.5 W laser that I purchased online. The board of my 3D printer is an Arduino Mega 2560 board with Ramp 1.4. I have connected my laser ...
1
vote
0answers
968 views

Marlin Bed-Leveling Vs Skew Correction

I've added a G29 command in my starting script to do bed leveling process before every print. It works fine and compensates my bed during prints. But when I print larger models, they're all skewed in ...
4
votes
1answer
405 views

Using extruder motor as 4th axis

I am currently working with a hobbyist robotic arm (uArm Swift Pro) which runs a modified version of Marlin 3D printing firmware. The arm can be used as a 3D printer as well thus it has an extruder ...
8
votes
2answers
168 views

Where did Marlin get its name?

Does anyone know how the developers of Marlin decided to name it that?
1
vote
2answers
154 views

How to start cycle by using push button

Can any one help me out that how to start a cycle by just using a push button. Note: Using Marlin firmware, Arduino Mega, Ramps 1.4 I haven't tried altering the Marlin code (as I am new to coding), ...
2
votes
1answer
788 views

How to decrease sensitivity to heat-bed temperature?

Sometimes I use a DIY 3D printer running Marlin firmware and I have a hard time to set my heat bed temperature. when I set it to 70 °C for PLA, after a few minutes it decreases to 67 &...
1
vote
2answers
5k views

BLTouch wiring and pin assignments

I’m in the process of installing a BLTouch on a Velleman Vertex K8400. The board doesn’t have a dedicated servo pin, so I’ll assign one. No problem there. The board only has a Z-min pin, so it’s my ...
3
votes
0answers
231 views

How to add a patch to “Marlin_main.cpp”?

According to this question, MKS 12864OLED Display setup, I need to add a patch to "Marlin_main.cpp" but this a large file with 14789 lines of code! I don't know ...
5
votes
1answer
18k views

Specifying Z offset in Marlin firmware

I need to set a Z offset for the Flying bear P902. I calculated the offset (-2.98). But, every time when I try to input this using the LCD screen of my 3D printer, the value jumps to either -2.99 or -...

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