I use a vacuum to keep my CNC bits cool and clear of sawdust in addition to vacuuming up the dust. The vacuum I use is a little shop vac that is really loud and as I explained in the previous Vacuum Upgrade post the exhaust was too powerful. I just wasn’t getting enough negative airflow for the suction at the back of the hood.
I hoped to solve both problems with a sound baffle that I could mount to the top of the vacuum housing. I decided to add a 2 inch baffle to the lid of the vacuum enclosure.
Some weather stripping and caulk sealed up some air leaks and a couple of coats of paint finish the project.
I took some measurements along the way with a decibel meter app proving this project was worth the time and effort put into it.
The shop vac outside of the enclosure was particularly loud even for a shop vac at 93-95dB. With the enclosure but before the baffle it was 80-83dB. With the enclosure and the new baffle it dropped to 63-65db.
I finally got around to stage two of the vacuum system for the CNC machine.
First I built an articulating arm for the vac exhaust. I used nothing but scrap wood. Well, except for the knobs and bolts of course.
Unfortunately the exhaust is a bit too powerful, the suction doesn’t quite keep up and some dust is being blown back out the front.
I had been thinking about building a baffle for the vacuum’s exhaust anyway with the hope that it would cut the noise level more. Perhaps it will also cut the exhaust speed enough to create a negative airflow from the front to the back.
I have never been happy with the switch configuration on my table saw. I was always fumbling around trying to find the off switch after making a cut on it while trying to make sure my cut pieces didn’t drift back into the blade or fall off of the table.
I finally decided to make a switch paddle so I could easily shut the saw off without fumbling around blindly or taking my eyes off of the blade and materials.
I had seen several prototypes for them on on YouTube but none for the particular Jet saw I have so I had to design my own.
It’s not fancy, well it is made from some scrap Walnut I had, but it is a pretty simple device.
When you are limited to a garage for a shop you have to get creative when it comes to floorspace. I combined my chop saw and planer into a flip-top cabinet.
I reduced the footprint of these tools to less than half of what they were as stand alone tools.
I’m also very happy with how the flip top came out considering I built it from my old router cabinet. I only had a basic idea as to how to engineer this when I started on it but flipping it over is smooth ad nearly effortless. Locking the platform in place is a little awkward but I can improve on that later.