Ensure that you have access to the MySQL database where the data resides. This requires having the necessary credentials (username, password) and knowing the host, port, and database name. Use MySQL client tools like MySQL Workbench or the command line to test your connection.

Use the `mysqldump` command or a similar method to export data from your MySQL database into a CSV or JSON format. This can be done using the command:
```sh
mysqldump -u [username] -p[password] [database_name] [table_name] --fields-terminated-by=',' --fields-enclosed-by='"' --lines-terminated-by='\n' --no-create-info > data.csv
```
Replace `[username]`, `[password]`, `[database_name]`, and `[table_name]` with your actual database credentials and table name.

Set up a Weaviate instance on your server or local machine. You can use Docker for a quick setup by running:
```sh
docker run -d -p 8080:8080 semitechnologies/weaviate
```
Verify that Weaviate is running by accessing its API through `http://localhost:8080/v1`.

Create a schema in Weaviate that matches the structure of the data you exported from MySQL. Use the Weaviate API to define classes and properties that reflect the data types and relationships. This can be done with a POST request to `http://localhost:8080/v1/schema` with a JSON payload.

Write a script in a programming language such as Python to parse the CSV or JSON file exported from MySQL. This script should convert each row of data into a format suitable for Weaviate's API. If using CSV, consider using Python's `csv` module to read the data.

Use the Weaviate REST API to load your parsed data. The script should send POST requests to `http://localhost:8080/v1/objects` with each data object formatted as JSON. Ensure you handle errors and confirm that each data point is successfully written to Weaviate.

Once the data import process is complete, use Weaviate's query capabilities to verify that the data has been correctly imported. You can do this by querying the data through the REST API using GET requests or via the Weaviate Console. This step ensures that the data integrity is maintained and that all records are accessible.

By following these steps, you can move data from a MySQL database to Weaviate without relying on third-party connectors or integrations, allowing for a more controlled and customized data migration process.