Platform CNC | Making a Drag Knife @Grunblau
Platform CNC | Making a Drag Knife  @Grunblau
Uploaded December 2013 | Updated September 2026, 2 weeks ago
I have always wanted to develop my own drag knife to cut cardboard, wood veneer, paper etc... In this video I 3D print and test a prototype and then mill the final working knife out of aluminum.
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I figured I had better add a mechanism for sending out the cadwork for the Drag Knife since there has been so many people asking for it. I though this might be an interesting approach!

grunblau.com/DragKnife.html

Please allow 24 hours for me to send you the files!

The bearings you will need are 1/2" ID X 1.125" OD bearings found here...

vxb.com/page/bearings/PROD/1-2inch/Kit7527
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Brian Oltrogge |

Platform CNC | Making a Drag Knife

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