If you’re new to CNC or just need a quick and cheap way to control the smaller airborne dust your vaccum doesn’t get around the shop, I’ve been astounded how well this “red neck dust reducer” works:
-Pick up a cheap 20x20 box fan and a 20x20 furnace filter. Duct tape the furnace filter to the fan. I have mine on the intake to keep the fan cleaner. Done. Total cost ~$50 and 15 minutes of time. Make sure you get a good seal all the way around with the duct tape.
I run mine when the Longmill is on and also when I am done for the night - I let it go all night. It doesn’t eliminate all the dust but it is amazing how much it captures and how it gets rid of any burnt wood smells etc. You’ll find some examples on YouTube comparing this to small shop ceiling mount systems and the results are shocking. It’s very similar with the fan at a fraction of the cost.
Pro-tip: Write the date you install the filter on the fan on the filter housing so you know how long you’ve been using it. I’ve had some success vaccuming off the outside of the filter and extending the number of months quite a bit.
Edit: The date on mine says this is from Feb, 2019 so it needs a change Been cutting a lot of MDF doing testing of spoilboard designs and jigs, so its gotten quite dirty. Still works great though…