($ 20) Make a sandblast of replaceable ceramic nozzles

The simple sandblaster I made earlier had the drawback that the nozzle was easily worn. Therefore, I considered a mechanism that can be easily replaced by using a ceramic nozzle that is advantageous in wear resistance. It can be made for approximately $ 20, including an air blow gun and ceramic nozzle. Click here for parts list (You can access it by entering the 7 “keywords“ displayed in the video.)