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PrintNC Dust Boot
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Dust boot for the PrintNC CNC Machine with great visibility. Rear 4 inch dust port. Inspired by PWNCNC dust boot v9.
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This is a z-axis independent dust boot for the PrintNC CNC Machine. You can use the thumbscrews to move the dust boot up and down depending on how tall your stock is.
This design uses mostly metric components, except for a couple of items I could only source in imperial.
In addition to the 3D printed parts, you will need the following components:
| Item | Quantity | Usage |
|---|---|---|
| M5x15 socket cap bolts | 2 | Pipe holder |
| 12mm x 3mm round neo magnets | 7 | Pipe holder |
| 8mm x 3mm round neo magnets | 2 2 6 10 | Boot spacer front Boot spacer middle Boot spacer back Pipe ring |
| 4in metal hose clamp | 2 | One connects dust hose to the pipe ring One holds the dust hose to the pipe holder |
| M3 x 8mm button head screws | 16 | Attach acrylic to 3d prints |
| M3 heat-set inserts | 16 | Attach acrylic to 3d prints |
| M4 x 20mm button head bolts | 4 | Attach DC Brackets to dust boot |
| M4 hex nuts | 4 | Attach DC Brackets to dust boot |
| Brush Strip | 1 | https://www.mcmaster.com/7900T807/ |
| ¼ inch aluminum rod x 2inch | 2 | Connects boot spacer middle to boot spacer back |
| ~3mm acrylic sheet, 12x12in | 1 | Top acrylic front, top acrylic back, bottom acrylic |
Tips:
- This should fit on “standard” PrintNC's with 100mm wide Z axis plates. That said, every PrintNC is a little bit different so your mileage may vary.
- I've included STEP files in case you need to make small adjustments for your setup.
- I've also included a layout STEP file to make it more convenient for machining the DC brackets and the acrylic sheet.
- I initially 3D printed the DC Brackets, but they were a little fragile so I ended up cutting them out of HDPE. I'd recommend either HDPE (or maybe Delrin?) so that it has a little flexibility.
- The CAD model is on OnShape if you want to significantly tweak the design: https://cad.onshape.com/documents/aa1448794085b717b2e571ba/w/4708ec8c391fa26dff16178d/e/f1bc098227ca061b48c324f0?renderMode=0&uiState=671ef6d4c64b2353f43a4a6f
- Cut the brush strip a little long before you feed it through the 3D printed channels, then use a razor blade to cut it flush. I also trimmed my brush strip a little shorter so that it's about 30mm tall rather than 2 inches (50.8mm).
- Bore out the connection holes with a ¼" drill bit before pressing the ¼ inch aluminum rod into the boot spacer middle and boot spacer back. The walls are very thin so they can crack easily.
- Make sure you get the magnet polarity correct before pressing them in… Once they're inserted, there's no getting them back out without ruining your part :)
Please leave a comment if I forgot anything.