FIBER LASER SCREW AIR COMPRESSOR SILENCER
Description
This is an original idea from John Saunders (NYC CNC) to reduce noise levels from a screw air compressor. It also captures all the water so you can dispose of it properly. I'm using an 11" long 4" internal diameter PVC pipe (the wall thickness is 0.22" and the outside diameter is 4.51") to avoid printing the body of the silencer. The original design uses a garden hose to reduce airspeed. You can see his video (NYC CNC, February 2, 2025, at minute 13). You can use the same part on both sides since you need to drain the water inside the sound arrestor. I drilled 5 1/2" holes every 90° of the pipe. So i have a total of 20 holes for the pvc pipe, i think its fine. My air compressor has 6 solenoid valves (4 filter stages, 1 for air dryer filter and 1 for tank drain), so I used 8mm tubing for 5 valves and 12mm tubing for the tank drain valve, this tubing goes at the center of the part. Inside the tubing, I used a shower loofah to muffle the sound. All of this assembly goes inside a plastic bucket, where you drill holes to let the sound escape and possibly install an indicator to drain the water. You must secure the cap to the PVC pipe with screws to prevent the air pressure from disassembling the parts.
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