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13 votes
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How to center my prints on the build platform? (Re-calibrate homing offset)

When centered in the slicer correctly, without offsets defined in the slicer, the printer is most probably incorrectly configured! Luckily you can do something about that! Basically, you will have to ...
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8 votes

Recalibrating Home-position

When homing the printer, the hot end carriage will be instructed to hit the (mechanical or optical) end stops. From this point a well configured firmware knows where to find the origin of the heat bed....
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  • 30.4k
6 votes
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How to set a new homing position using software and/or slicer without changing hardware end-stop?

The Y-Max setting does not help, because it is the software end stop for the other end of the axis. The Y Home position also doesn't help as it only changes the coordinate that the printer assumes ...
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  • 1,541
5 votes

Installed bed leveling probe, now Z homing moves to center

This is a consequence of enabling Z_SAFE_HOMING: Z Safe Homing prevents Z from homing when the probe (or nozzle) is outside bed area by moving to a defined XY ...
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  • 275
5 votes
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What is homing? What is the purpose of homing?

What is homing? From the tag wiki homing we can read: The process of determining the location of a 3D printer nozzle in three dimension using a reference point (home location) is referred to as &...
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  • 30.4k
3 votes
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Why the Ender 5 Pro can't remember the axis position or cant move back to home anymore?

Once you pull the plug or disable power to the stepper motors, the printer forgets its location. That is perfectly normal and exactly how it is supposed to work. The printer knows where the printer ...
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  • 30.4k
3 votes

How to center my prints on the build platform? (Re-calibrate homing offset)

As to why this happens, particularly with a budget printer the end-stop mountings may not be particularly precisely located, or the moving part may actuate the endstop slightly differently in each ...
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3 votes

Weird Movement and not homing

As far as I can see on the attached videos your homing movement is reversed. as per Marlin, the homing for X shall move towards the left side and for Y to the back of the printer. That could occur ...
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  • 1,922
3 votes

How to set a new homing position using software and/or slicer without changing hardware end-stop?

Now I've finally had time to look into this, since I knew it somehow existed, but wasn't sure how it worked: Use the M206 G-code command in Marlin, Sprinter, Smoothie, or RepRap Firmware to offset ...
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  • 2,844
3 votes
Accepted

Recalibrating Home-position

Greenonline and I spent this evening hacking/reverse engineering the Ender3 to solve this. Greenonline also wrote about this in his blog. Step 1 - Get the Firmware To do this, there are basically two ...
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  • 19.2k
3 votes

Recalibrating Home-position

Following on from 0scar's answer To change or obtain your EEPROM settings you need to open Repetier Host (for Linux or Windows, v2.1.3 - the OSX version I tried, v1.1.0, didn't seem to have this ...
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  • 5,707
3 votes

Ender 3 homing problem

Homing is the process where the machine finds all the limits of the 3 axis (at the endstop switches), to have a common reference point for each axis. From the endstops, firmware defined values exist ...
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  • 30.4k
3 votes
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What are the pros and cons of using a BLTouch in place of a limit switch?

Touch sensors (or inductive or capacitive sensors) are generally used to probe the bed to determine the bed shape. For metallic beds that are not perfectly straight this works excellent. But, if your ...
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  • 30.4k
3 votes
Accepted

Ender 3 V2 ignories Z-axis limit switch

I finally found the problem. The threaded rod of the Z axis was not mounted tight enough to the motor. This resulted in the slipping of the Z axis by large accelerations of the motor. So... tightening ...
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  • 161
3 votes
Accepted

Klipper: power on before homing

Because of the way parameters work differently (Sx vs NAME=x) for gcode style commands vs Klipper extended ones, the rename has ...
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2 votes
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Homing the 3D printer

It is possible to "home a printer" without having endstops, technically, you don't require endstops, but it makes your job a lot easier if you want to print something! Basically, when you don't have ...
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  • 30.4k
2 votes

Homing damages limit switches Ender 3

Personally, I have found that if you bend the arm of the limit switch out, it gets triggered earlier and solves this issue for good, (broke a switch clean off at the bend on the pins, soldered old ...
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2 votes

Why the Ender 5 Pro can't remember the axis position or cant move back to home anymore?

(Summed up from several entries in this thread.) It is untrue assumption that printer can't move back to home anymore, until the G-Code G28 is executed. Printer can ...
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  • 906
2 votes

Installed bed leveling probe, now Z homing moves to center

I had the same problem, solved it by inserting // Move X and Y to 0 after homing process_subcommands_now_P("G1 X0 Y0 F5000"); at the end of ...
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  • 29
2 votes
Accepted

Issue with Z homing on Ender 3 Pro with Marlin

I've actually found what the issue was. It turns out that my Z steps were way out of whack (i.e. 4000 steps/mm instead of 400). Apparently, that's the default value in GitHub for version 2.0 of Marlin....
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  • 41
2 votes

Ender 3 + SKR 1.4 + Marlin 2.0.x bugfix - what bed size/min/max positions should I use?

The Ender 3 has a printable area of 220x220x250 mm according to the specifications. So, there is nothing wrong. Sometimes heated beds are slightly larger than the actual print area. E.g. 235x235 mm or ...
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  • 30.4k
2 votes

What is homing? What is the purpose of homing?

Most 3d printers control head position using stepper motors and end stops with no position feedback. The stepper motor does not actually know its location. The printer's control system can only know ...
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  • 572
1 vote

3D printer homing issue, nozzle damaging the bed when printing

For some reason the Z axis finishes homing with the extruder 6 mm above the bed. If homing Z axes seems proper - i.e. nozzle is "touching" the bed during proces, and not going below the bed ...
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  • 906
1 vote
Accepted

How to set Home Offsets and Manual Home definitions in Marlin correctly?

Normally you wouldn't use the MANUAL_xyz_HOME_POS at all. Home your machine. Use a caliper or ruler to measure the distance between the nozzle and the edges of the ...
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  • 1,182
1 vote
Accepted

Prevent raising Z-axis after homing

Just solved my own problem. Instead of looking in Marlin for the command, I found out the reason it was lifting up quickly was because of a custom command embedded in the G-code by the slicer. I got ...
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1 vote

Define coordinates for Z homing

If you enabled Z_SAFE_HOMING, then automatically the printer homes Z at the middle of the build plate, if the bed size dimensions are correctly defined (in your ...
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  • 30.4k
1 vote
Accepted

Creality Ender 3 X axis homing issue

The issues you are facing can be caused typically by a defective X-axis endstop, an inverted logic of the X-axis endstop or a defective printer controller board. When the X-axis endstop is reporting ...
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  • 30.4k
1 vote

Ender 3 home location

It sounds like there’s two things that could be going wrong here: Your starting G-code has some code in it that’s making it think that you want to treat a few layers up as ...
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1 vote

Bed size and nozzle homing offset in Marlin 1.1.9 firmware

The original Anet A8 has: // The size of the print bed #define X_BED_SIZE 220 #define Y_BED_SIZE 220 // Travel limits (mm) after homing, corresponding to endstop positions. #define X_MIN_POS -33 #...
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  • 30.4k
1 vote

What are the pros and cons of using a BLTouch in place of a limit switch?

I would use both if I had a choice, but my stock "Melzi" board doesn't have enough inputs as near as I can tell. Most of the (scarce) instructions show to disconnect the Z switch and connect the BL ...
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