Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5727417.

I made this to fit my band saw Record Power BS400.

It uses 9 magnets - the holes have a diameter of 5.9mm, based on magnets I had on hand. You can put smaller ones in and seal them with hot glue, or drill out the hole just a little bit.

I don't expect many of you to be able to use this as is, but I hope this will inspire you to improve dust collection on your band saw (which in my experience is generally not that well implemented).

I have included the Fusion360 file so that you might be able to tweak it to your liking.