Digital Download: High-Speed Rotary Diamond Engraver for Shapeoko


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Digital Download: High-Speed Rotary Diamond Engraver for Shapeoko.
.STL File for 3D printing.

Demonstration video:

This project sprung out of a desire to make a quality and long lasting memorial for a late friend. Her family couldn't to buy a marker, so I offered to help. After having less than desirable results using a diamond drag bit, I was sure there had to be a better way. Some research into the granite engraving world found some extremely expensive machines and specialty bits that were cost prohibitive for my needs. I borrowed a key integration into many of their designs: an angled engraver that allowed high-speed diamond burs to be used as they were intended.

This led me down an extensive path of design and testing. I found that tool angle was critical to prevent excessive wear, and there also needed to be just the right amount of flex in the mounting design to prevent snapping the bits when plunging. The final problem to overcome the was the harmful dust this process created.

After over a dozen design iterations I arrived at this. I could not be happier with the results!

I've achieved reliable engraving at over 160ipm, with deep, clean, and crisp lines. It requires NO MODIFICATION to the existing Shapeoko router mounting bracket (of 69mm diameter) It incorporates an easily adjustable dust collection shoe that is compatible with both 1-1/4" and 2-1/2" vacuum hoses, and uses readily available and inexpensive rotary diamond burs.

It works on the hardest materials, including: Steel, Titanium, Stone, Glass, Porcelain, Marble, and Granite, and DOES NOT require any additional air or coolant systems!

Flex shaft can be purchased separately or can be used with most tools with ~20mm diameter. Here is a $20 rotary tool with compatible flex shaft:

You will need: 4x 3mm x 25mm Hex Screws, 4x 3mm x 12mm Hex Screws, and 8x 3mm Nylock nuts to complete assembly.

Save yourself the time, frustration, and wasted materials by buying my tested and proven design, and expand the capabilities of your versatile machine.

This tool will pay for itself in it's very first use... Mine saved me $200 on my first project! *Please respect the effort I put into this design, and don't copy or share the files online. *

**Recommended Print Settings**
Use a high quality filament. I tested the design using both Hatchbox 1.75mm black PLA and ABS
1.6mm Wall Thickness, 1.6mm Top/Bottom Thickness
>40% Infill
NO Supports, Brim optional but not necessary
I've had great results using 4mm diamond burs a 160ipm with 0.03" DOC, and 1mm burrs at 90ipm with 0.01" DOC.

*USE HEPA DUST COLLECTION AND WEAR >n95 RESPIRATORY PROTECTION! Granite dust, along with many other stones, contains high levels of silica.
This can cause Silicosis, which is a lung disease cause by severe scaring of the lung tissue, and can be FATAL!

Dont hesistate to contact me with any questions or concerns!

Digital downloads

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  • Accepts Etsy gift cards

Returns & Exchanges

I gladly accept returns and exchanges

Just contact me within: 5 days of delivery

Ship items back to me within: 14 days of delivery

I don't accept cancellations

But please contact me if you have any problems with your order.

The following items can't be returned or exchanged

Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:

  • Custom or personalized orders
  • Perishable products (like food or flowers)
  • Digital downloads
  • Intimate items (for health/hygiene reasons)

Conditions of return

Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.

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