How To Build An Enclosure For CNC | DIY CNC Enclosure

Updated: Jul 13, 2023

OneFinity CNC inside wooden enclosure with spoilboard, led lights and vacuum

Over 1 year ago when I bought my cnc, I knew I wanted to build an enclosure for it to help contain the dust, to keep the noise down and to protect anyone around the machine from flying debris. This took quite a bit of research on how others were building theirs and what I wanted to accomplish. Here is the the enclosure and how I built it.

I started by framing out a 5x5 square and uprights out of 2x4s. The 5x5 size was easy to obtain with the 5x5 baltic birch sheet and allowed for the cnc to fit comfortably on all sides. I added another 2x4 to each upright to add stability as well as a landing spot for the next frame and notched the 5x5 baltic sheet to fit around the uprights. I then built the next square frame that would serve as the table top for the cnc to sit on. This frame rested on the previously added 2x4s and I added bracing in between the joists for added stability.

More 2x4s were painted, then added to the uprights and another 5x5 BB sheet was notched, placed on top of the frame and screwed down. The 3rd and final BB sheet was painted, notched and attached to the 3rd 2x4 frame which was used for the ceiling/roof of the structure. This frame rests on the previously added 2x4s on the uprights. Since the structure was open and easy to access, I went on and added the led light strips to the ceiling. This also provided extra light to help with the rest of the build.

Now it was time to build the sides and close it in. I ripped the plywood for the sides on the table saw and then used the circular to carefully cut out the center rectangles. I then painted the sides and attached attached plexiglass around the opening so that the cnc could be seen from multiple directions.

I framed the doors out of 1x4s & 1x6s pocket-holed together which were later painted and attached with hinges. There are also magnetic catches on the doors to keep them closed during operation. The back panel features a flap at the bottom that could be opened and used to pass-through longer material if needed. I have yet to actually use longer material and test this out.

The whole structure was lifted and sat on 2x4 blocks so that the wheels could be added in case it needed to be moved at a later time. I added extra light strips that I had to the front and side to help provide more light for working.

At a later time, I added smoke extraction for the laser to remove the fumes out. This was done by cutting a 6in hole in the ceiling and using 6in flanges on both sides of the hole. I mounted the AC Infinity charcoal filter inside and the fan unit on the outside. Then connected the hoses to both, secured them with the clamps and mounted the control unit.