Dust Level Window

Simple design to allow me to see the Dust level on my cyclone collector so it docent over fill. It uses #6 1/2" bolts and washers with washers and locknuts on the inside. It is made for 1/16" acrylic. I simply cut out a hole using the frame as a guide in the dust bin and drilled out all the holes. I did use a little silicone to seal the window as I bolted it on. Little overkill on the bolts, but it seals great and allowed for some slight bending for the curve on the bin. STEP file is included for modification if needed.