> For the complete documentation index, see [llms.txt](https://docs.siboor.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.siboor.com/siboor-boom-january-2026/the-build/initial-startup-checks.md).

# Initial Startup Checks

#### ※Motor Schematic diagram

<figure><img src="/files/jEk8hVIfDYxg5RssS1iL" alt=""><figcaption></figcaption></figure>

#### ※Correct printhead movement direction

<figure><img src="/files/BhuLzK1M9W5vhwOJkBgx" alt=""><figcaption></figcaption></figure>

#### ※Check Fan

Identify all the fans inside the machine.

| Name             | Specifications | Startup method                                   |
| ---------------- | -------------- | ------------------------------------------------ |
| Hotend\_fan      | 3010 FAN       | Hotend＞50℃                                       |
| Part coolong Fan | 4010Blowe×2    | When commencing the printing of the second layer |
| Core\_fan        | 3010 FAN       | Starts when energized (not controllable)         |

<figure><img src="/files/R9HXr4EUL9VOJmL9ZH8s" alt=""><figcaption></figcaption></figure>