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Stavros Korokithakis 2021-02-15 22:36:31 +02:00
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Click on a link in the list below to go to that page: Click on a link in the list below to go to that page:
1. [Electronics tips](../../maker-things/electronics-tips) 1. [Electronics tips](../../maker-things/electronics-tips)
1. [GRBL_ESP32 tips](../../maker-things/grbl-esp32-tips)
1. [How to properly level your 3D printer](../../maker-things/how-to-properly-level-your-3d-printer) 1. [How to properly level your 3D printer](../../maker-things/how-to-properly-level-your-3d-printer)

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title = "GRBL_ESP32 tips"
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I made a CNC that uses [a custom board I designed](https://gitlab.com/stavros/esp32-cnc), and which runs [GRBL_ESP32](https://github.com/bdring/Grbl_Esp32/). I couldn't find the following info easily, so I've written it here:
- You can specify the enable pin for the drivers with the `STEPPERS_DISABLE_PIN` option. This should be used like `#define STEPPERS_DISABLE_PIN GPIO_NUM_2`.
- To invert the enable signal, you can use `#define DEFAULT_INVERT_ST_ENABLE 1`. My board needed the enable signal to *not* be inverted (that's what A4988/Trinamic TMC2208 drivers need), so I set it to 0.
- To always keep the steppers enabled (locked) to avoid them moving, you can specify `$Stepper/IdleTime=255`. That's the maximum timeout and will always keep them enabled.
* * *
<p style="font-size:80%; font-style: italic">
Last updated on February 15, 2021. For any questions/feedback,
email me at <a href="mailto:hi@stavros.io">hi@stavros.io</a>.
</p>

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title = "How to properly level your 3D printer" title = "How to properly level your 3D printer"
weight = 2 weight = 3
sort_by = "weight" sort_by = "weight"
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