show you notice small scratches on the surface of your 3D prints, or if the two steel axes on the printer look dry, it is recommended to put a single drop of sewing machine oil on the two steel axes (Do not use WD40 as this will affect the coating on the steel shafts!).
Every 6 months, the printer threaded rod should be lubricated with PFTE lubrication.
The Buildtak circuit board is cleaned with window cleaner when you experience that the adhesion is reduced. The original white circuit board should be replaced with a Buildtak board when the adhesiveness is reduced.
Clean the white and black plastic parts of the 3D printer with a damp cloth. Dust and dirt can get stuck in the 3D printer gear and bearings, causing poor print quality or mechanical failure.
Also clean the surfaces under the circuit board regularly.