Through the open mirror system, dust and resin vapors continuously settled on the mirrors.
Already in the delivery state of Moai 200, the mirrors and the environment were so dirty:
The fouling of the mirrors over time leads to an ever increasing scattering of the laser beam, which leads to a reduction of the laser power and to a lower resolution during the resin exposure. Therefore, the two mirrors should always be clean.
When cleaning the mirror surfaces, you have to be very careful
The following should be noted during the cleaning:
- The mechanical pressure on the mirrors must be minimal
- The cleaning body (foam swabs) used must be free of lint, dust and finger grease, as well as solvent-resistant
- The solvent used must be volatile and evaporate without residue
- The solvent must not attack the mirror surface or the mirror kit
It is best to soak a fresh sponge and shake it off briefly, so that not too much solvent in the sponge is (not dripping wet!) And then moves with ultra-light pressure over the mirror and thus removes the stubborn dirt.
Repeat this until the mirror surface appears clean.
The finish is always done with a virgin sponge rod that is used only once and pulled over the mirror!
Helpful in the assessment of the purge action is an LED flashlight with which one side (obliquely) illuminates the mirror surface. This makes deposits, such as particles and veils, very visible.
The degree of soiling should be checked regularly, as the lower area of the printer is not hermetically sealed and air convection distributes dust and resin vapor evenly on the mirrors.
The use of compressed Air Duster Spray can remove slight dust deposits on the mirrors, but also stir up dust from the environment, which then settles on the mirrors!