<p>I'm having trouble with my customized Ender 3 Pro. It's running an SKR v1.3 board with Marlin and OctoPrint on a Raspberry Pi 4. My problem is that sometimes when the printer goes to print, instead of drawing the first line to prime the nozzle, it goes to max X and Y and extrudes what appears to be the full amount of plastic that would be extruded in a layer. It then proceeds to execute its Z-moves like it would in a print, without changing X and Y. The result is a lot of plastic being extruded very quickly in one location. There's also a BLTouch sensor on the machine. I've also come across the error while it's in the middle of a print. It'll just stop what it's doing on a layer, go to max X and Y and start extruding and raising the Z-axis.</p>
<p>What I've tried to solve it:</p>
<ul>
<li>Turned it off and on again. This sometimes works. After leaving the printer off for a while, I start the print again with the same exact G-code, and the print works perfectly. Sometimes this works, sometimes it doesn't.</li>
<li>Looked around in the Marlin firmware for errors. The Ender is running a version of Marlin I customized from the stock version to fit my hardware.</li>
</ul>

CC BY-SA 4.0
2020-07-13T13:18:59.687Z
what's your start G-code? Have you checked if your endstops are in the MIN or in the MAX endstop pins?
Trish
CC BY-SA 4.0
2020-07-14T15:22:59.627Z
How complex would it be for you to go back to a stock setup? That could at-least help you identify if the bug is hardware or software related (albeit it sounds software to me).
Dr. Mantis Tobbogan
<marlin><creality-ender-3><troubleshooting>
Ender 3 Pro goes to one location on the bed and extrudes
PalmTrey
# Ender 3 Pro goes to one location on the bed and extrudes

(Asked by: username_0 on 2020-07-13)

I'm having trouble with my customized Ender 3 Pro. It's running an SKR v1.3 board with Marlin and OctoPrint on a Raspberry Pi 4. My problem is that sometimes when the printer goes to print, instead of drawing the first line to prime the nozzle, it goes to max X and Y and extrudes what appears to be the full amount of plastic that would be extruded in a layer. It then proceeds to execute its Z-moves like it would in a print, without changing X and Y. The result is a lot of plastic being extruded very quickly in one location. There's also a BLTouch sensor on the machine. I've also come across the error while it's in the middle of a print. It'll just stop what it's doing on a layer, go to max X and Y and start extruding and raising the Z-axis.

What I've tried to solve it:

* Turned it off and on again. This sometimes works. After leaving the printer off for a while, I start the print again with the same exact G-code, and the print works perfectly. Sometimes this works, sometimes it doesn't.
* Looked around in the Marlin firmware for errors. The Ender is running a version of Marlin I customized from the stock version to fit my hardware.

**Tags:** marlin, creality-ender-3, troubleshooting

> **Comments:**
> **username_1**: what's your start G-code? Have you checked if your endstops are in the MIN or in the MAX endstop pins?  
> **username_2**: How complex would it be for you to go back to a stock setup? That could at-least help you identify if the bug is hardware or software related (albeit it sounds software to me).  

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## 0 answers

