Drag-Knife Mount via Diaphragm Flexure
Free

This is a 3D printed adaptor that adds a drag-knife mount to a 1610 CNC Mill/Engraver.  It uses two 3D printed diaphragm flexures mounted in a circular holder to provide the necessary Z-axis motion while being very rigid in the X/Y plane.

Drag-knives, available via Ebay very cheaply, are used to cut out vinyl stickers.  This adapter allows sticker cutting with a cheap CNC mill .

The complete write-up is here:  http://fixerdave.blogspot.com/...

Here are the Fusion 360 project files for the: 

Diaphragm:  https://a360.co/2Pa38aI

Housing: https://a360.co/2MBsCks

The design is free to download but it you want to buy me a cup of coffee then get the bundle:  https://pinshape.com/items/420...

Oh, and I included a spindle cradle as a place to hold the spindle motor when using the drag-knife.  It's not so great, but gets the job done.

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Drag-Knife Mount via Diaphragm Flexure

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Creative Commons Attribution

You can distribute, remix, adapt, and build upon the material in any medium or format, as long as attribution is given to the creator.

CC BY Licensed under CC BY
Files Included

3 downloadable files:

View 3D
Diaphram_M6_v3.stl
STL Model
3.8 MB
File size
View 3D
Housing_M1_v5.stl
STL Model
249.9 KB
File size
View 3D
SpindleHolder_M1_v3.stl
STL Model
92.3 KB
File size
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