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Circular cutting jig

Circular cutting jig for precise, clean, and repeatable round cuts with ease for multi materials.
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updated July 6, 2025

Description

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3D Printed Circular Cutting Jig – Precision Tool for Clean, Repeatable Circular Cuts  :

🛠 Assembly Instructions:

To ensure proper function, please follow these detailed assembly steps:

  • Base Mounting ("Circular cutting jig base 80mm"):
    This part must be removable and reassembled as needed. If the fit is too tight or too loose, tolerance adjustments in your slicer may be necessary to achieve a snug, but non-permanent fit.
  • Bearing Insertion (Bearing type: 6203-2RS): Begin by press-fitting the 6203-2RS bearing into the "Circular cutting jig handle". Then, carefully insert the same bearing into the "Circular cutting jig shaft".
    Important: Ensure both press fits are well-aligned and done gently — improper insertion may cause friction or misalignment, preventing smooth rotation of the jig.

📦 Bill of Materials (BOM) – What You Need:

QuantityNameInfo
1Olfa RB18https://olfa.com/fr/products/lame-rotative-en-acier-inoxydable-18-mm-rb18-2-2-pack
1Circular cutting jig base3D printed
1Circular cutting jig shaft3D printed
1Ball Bearing 6203-2RS 
1Circular cutting jig blade arm3D printed
1Circular cutting jig handle3D printed
1Steel Hex Head Screw M4x20mm 
2Steel Nylon-Insert Locknut M4 
2Button Head Hex Drive Screw M4x14mm 
1Circular cutting jig top handle3D printed
1Steel Hex Nut M4 
1Circular cutting jig eccentric cam3D printed
1Circular cutting jig screw head3D printed

Let me know if you find some adjustment needed ! 

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Model origin

The author marked this model as their own original creation.

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