For the longest time I"ve wanted to get a dust boot on my cnc, but since I need it to be removable for swapping bits, I had a hard time figure out a way to make that happen. Well with the recent addition of the weaver scope rail for adding on the laser, I got an idea.
So a week or so ago I ordered some brush strips off ebay, in 1" , 2" , and 3" sizes. The strips are 3/16" wide at the metal banding that holds the strips. I wanted to do a friction fit into the boots plate. So here is the design I came up with.
Using my HF Ring roller I rolled the strip brush to match the radius' of the plate
Next I milled out the plate, all done with a 1/8" end mill, however I think I mis-measured the straight areas.
No problem, I just cut the straight areas out and re-used the curved parts
Well, the first attempt, the exact 3/16" groove was a bit tight and blew out the mdf, so remilled a new plate with a little larger groove for it, also thickened the outer wall and made the vacuum hose hole a little larger (which was needed).
Using a straight screwdriver and hammer I tapped the brush into the groove, was a snug fit, but didn't split this time
Next I added a support with the scope mount. I used three 3" screws to fasten the support and give it rigidity.
Lastly, I connected up to my DC.