Knife Sharpening Jig for Whetstones (Gridfinity)

Knife Sharpening Jig for Whetstones (Gridfinity System)

This is my version of a knife sharpening jig for whetstones. I found a few things i missed in other models, so I designed this version to be more organized and versatile.

✨ Key Features:

• Swappable Angles: Includes top plates for 15°, 17°, 20°, and 25° sharpening angles.

   

• Save on Hardware: The modular design allows you to swap angles while using the same set of bearings, significantly reducing the amount of hardware needed if you want multiple angles.

   

• Gridfinity Compatible: Both the base and the angle bin use Gridfinity standard for easy storage in your workshop.

   

• Whetstone Compatibility: Designed for stones around 185mm x 65mm x 32.2mm(L x w x H) , but the base supports stones up to 240mm in length.

   

• Height Spacer: Includes a spacer for use with thinner 15.6mm whetstone 185mm length (optional)

   

   

🛠️ Hardware Required:

• Bearings: 4x 608ZZ bearings.
• Magnets: 15x 6x2 mm round magnets (if printing all angle plates)

🔧 Assembly Instructions:

1. Bearings: Press-fit the 608ZZ bearings to the angle base.

   • Tip: Use the edge of a workbench to apply pressure if the fit is tight.

      

2. Magnets: Use a drop of superglue to secure the magnets.

   • Warning: Check the polarity carefully before gluing! Ensure the magnets on the base and the plates attract each other correctly.

     

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🖨️ Recommended Print Settings:

• Material: i use PLA tough+ but I think PLA and PETG work fine too.
• Walls: 4 wall loops for structural rigidity.
• Infill: 30% (Gyroid suggested).

Updates

23/1/2026
-Added Undercarrige Bin Gridfinity print profile for storage.

6/2/2026

-Added print profile that should work on P1s/X1 carbon etc.

4/3/2026

-Added print profile for 8x2 magnets.

24/4/2026

-Addet print profile for 30 degree angle 6x2 and 8x2 magnets.