If anyone is trying to disassemble their Ortur LU2-10A laser module (say, if it's suddenly making a horrible intermittent screeching noise like some debris is caught in a fan), the secret is 4 screws under the big sticker. They pull the laser module heatsink against the exterior heatsink, so you can spread new compound, slide the module into the housing, then squish the heatsink compound with the 4 screws. #Ortur #laser #LU2-10A