MPCNC Primo Dewalt 660 Mount & Dust Shoe by jmillerfo

Last crawled date: 3 years, 3 months ago

This accessory is an add-on to V1 Engineering's MPCNC Primo version CNC machine and provides a mount and dust collection attachment for the DeWalt 660 Router. See https://www.thingiverse.com/thing:4493589.
Here is a short animation showing the forward brust closeout in operation: https://youtu.be/rB8bBY6TmeQ
PTFE is recommended for strength and flexibility. See attached D660 Mount-PTEG.3mf file for detail settings. This file was created using PrusaSlicer.
Test prints may be made with infill = 5%. This reduces print time and filament volume substantially. Production parts must be printed with infill >50% for streingth.
Discussion
This Dust Shoe supports the DeWalt 660 Router when mounted in a V1 Engineering MPCNC Primo CNC. The required mounts files are provided with the attached .stl files.
The Dust Shoe connects to a ShopVac or equivalent vacuum source having a 30mm diameter solid hose extension. A flexible hose connects the extension tube to the vacuum source. The extension tube should be between 300 and 360mm in length. The flexible hose should be suspended overhead, centered on the work area and should have at least a 4 foot rise with ample slack so as not to place side loads on the tool anywhere within the work area.
File Brush-Mount-Plate.stl may be printed or cut (preferred) from 5mm Acrylic stock using the MPCNC router. Clear Acrylic sheet provides visability of the bit and milling area.
The Dust Shoe is designed to have the aft portion fixed to the Brush-Mount-Plate with is in turn attached to the DW660-Lower-Mount. The forward portion of the dust shoe is designed to slid onto the Brush-Mount-Plate and to be held in place by four 5x3mm magnets, two on the fixed (aft) portion and two on the sliding (forward) portion. The magnets should be welded in place using CA super glue or equivalent. When installing the magnets make sure the two haves of the Dust Shoe are attracting rather than repelling magnets.
The brush stock listed below is 70mm in length. This is too long for most bit lengths and must be trimmed to approximately 35mm. Once trimmed the brush stock is cut to size and inserted between the Fixed-Brush-Mount and the Fixed-Brush-Clamp using 4 M3x16 screws and locknuts. In like manner cut another section of Brush stock and mount it between the Sliding-Brush-Mount and the Sliding-Brush-Clamp using 3 M3x16 screws and locknuts.
The Sliding-Brush assembly should now slide freely over the Dust-Shoe-Mount and be held in place by the four magnets.
BOM
Qty
Item
Source
10
M3x.5x16 Screws
https://www.amazon.com/Assortment-Lengths-Stainless-Machine-Hardware/dp/B0881X3Y4X
3
M4x.7x20 Screws
https://www.amazon.com/Eowpower-210Pcs-Stainless-Socket-Assortment/dp/B06XC8BMCM
4
M4x.7x30 Screws
See Above
4
M5x.8x30 Screws
https://www.amazon.com/dp/B077WL4SBQ
3
M3 Square Nuts
https://www.amazon.com/gp/product/B018JPZNS6
7
M3 Locknuts
https://www.amazon.com/Stainless-Steel-Assortment-Insert-Locknut/dp/B074PJV3N1
7
M4 Locknuts
See Above
4
5x3mm Magnets
https://www.amazon.com/gp/product/B07C69PHMR
1
Brush Stock
https://www.amazon.com/gp/product/B07VM6FG45