13
Kipper - Home printer only if needed (lemmy.world)
submitted 1 month ago* (last edited 1 month ago) by LazaroFilm@lemmy.world to c/3dprinting@lemmy.world
6 comments fedilink hide all child comments

Homing your printer systematically before a print is redundant, a waste of time and sometimes even an issue (if your homing probe is misbehaving and you’ve already dialed an offset by need to restart the print for a clean first layer for instance) I recently came upon this G28 macro that only homes of the printed is not already homed.

[gcode_macro G28]
# Only home if needed.
rename_existing: G28.1
gcode:
    {% if PA %}
        G28.1 {PA}
    {% else %}
        {% if printer.toolhead.homed_axes != "xyz" %}
            G28.1
        {% endif %}
    {% endif %}

All you have to do is add this to your macro.cfg file and it will override any G28 command from any gcode and only execute a home if needed. If you want to execute a home even if not needed, you can send the command G28.1 or give it a parameter, like G28 X, or G28 XYZ and it will force the homing

you are viewing a single comment's thread
view the rest of the comments
[-] ShepherdPie@midwest.social 5 points 1 month ago

Seems like a more efficient choice but be wary (weary?) that some printers will unlock the motors after sitting for X amount of time without any movement or commands, which will require you to home again anyways.

This seems ideal if you're running prints back to back though.

[-] LazaroFilm@lemmy.world 2 points 1 month ago

Then if the motors are released the home will activate. No issue there.

[-] ShepherdPie@midwest.social 3 points 1 month ago

Yeah I meant it as more a heads up if someone finds themselves in a scenario like you described where their bed probe is on the fritz and they're hoping to work around that.

[-] LazaroFilm@lemmy.world 1 points 1 month ago

Also, this is for Klipper you can change the behavior of your printer to do whatever you want.

this post was submitted on 09 Aug 2024
13 points (100.0% liked)

3DPrinting

15248 readers
52 users here now

3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

The r/functionalprint community is now located at: !functionalprint@kbin.social or !functionalprint@fedia.io

There are CAD communities available at: !cad@lemmy.world or !freecad@lemmy.ml

Rules

If you need an easy way to host pictures, https://catbox.moe may be an option. Be ethical about what you post and donate if you are able or use this a lot. It is just an individual hosting content, not a company. The image embedding syntax for Lemmy is ![](URL)

Moderation policy: Light, mostly invisible

founded 1 year ago
MODERATORS
j4k3@lemmy.world
andypiper@lemmy.world
henry_rowengartner@lemmy.world
GrayBackgroundMusic@lemm.ee