90º Precision Square

**90º Precision Square**

It serves to see if the aluminum profiles 2020, 2040 of your Alfawise U20 are assembled with angles of 90º.

After printing on PLA and to optimize the result, I proceeded to lightly sand the two main contact surfaces with sandpaper, first with P600 sandpaper and then with P1200 sandpaper.

** Warning **: if the angle formed by the X axis with the Y is not 90º, the square will not be 90º either, so it also serves to check if the assembly of the printer requires adjustment. A piece is also included to perform calibration tests before proceeding with the final printing.

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**Escuadra 90º de precisión**

Sirve para ver si los perfiles de aluminio 2020, 2040 de tu Alfawise U20 están ensamblados con ángulos de 90º.

Después de la impresión en PLA y para optimizar el resultado, yo procedí a lijar suavemente con lija al agua las dos superficies principales de contacto, primero con lija P600 y luego con lija P1200.

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