Lock-Down Dust Extractor for MPCNC

thingiverse

My take on a dust extraction solution for the MPCNC. Called the Lock down version, this project was born out of necessity during the Corona virus lockdown when hardware purchases were impossible. I had to rely on household items, specifically my trusty vacuum cleaner and leftover 40mm plumbing plastic pipe from a past repair job. This is my first attempt at creating something in Tinkercad, and I'm thrilled with how simple it was to use - even I could do it! However, due to the Makita router's unique cooling method, which creates a strong down draft, my initial design wasn't effective enough. That's when I discovered the deflector from fretman_2 on Thingiverse, which greatly improved the extraction power in version 3 of my design. Be aware that this dust extractor will suck up internal pieces once cut through, so keep an eye on your workpiece during use. Also, note that any work piece hold down clamps may snag, especially those to the left side of the work area, which reduces clearance - but then so does any dust extraction. This setup should handle up to 10mm board with ease, and I've been cutting 6mm boards with no problem. If you're using longer router cutters, simply slide the pipe down further, but be sure to fix the bottom bracket in place as it may try to slide down. Designed for Metric 40mm pipe, this attachment fits snugly inside the MPCNC's Z axis 25mm pipe and secures with a single self-tapper screw. It also allows you to observe what's happening during operation. The design is loose enough that it should work with non-metric pipes as well. Made from PLA/PLA+/PETG or whatever material you prefer, I've used the following settings: * Layer thickness: 0.1mm * Infill density: 40% or better * Perimeters: 3 Use supports everywhere for the nozzle only. To assemble the attachment, offer the nozzle up to your pipe and mark through the nozzle where to cut a wedge out. Once satisfied with the cutout, super glue the pipe and nozzle together. Although probably unnecessary, I also applied a 2-pack epoxy (Araldite Quikset) to fill the slight gap - just in case. Next, slide the bottom bracket over the pipe all the way down to the nozzle, making sure the half-circle faces upwards. This slides inside the bottom of the left-hand Z axis pipe of the MPCNC. Finally, slide the top bracket over the pipe and insert the two small cylinders into the top of the Z axis pipes. Position the nozzle as high as possible away from the work surface and drill a small hole to secure the top bracket with a self-tapper screw - easy to remove if needed.