Drag knife adapter for CNC (spring mounted)
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I wanted an adapter which allows me fixing a drag-knife to my MPCNC without taking the spindle out.
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I wanted an adapter which allows me fixing a drag-knife to my MPCNC without taking the spindle out.
The drag-knife adapter allows the blade to move in the vertical direction a few millimeters. Put a little sponge inside the adapter before inserting the blade, this has a spring effect which forces the blade down but is not as rigid as something fixed, it gives the knife some flexibility so it is not damaged when put in place by the z-Axis.
The drag-knife I use is for the standard Silhouette desktop cutters (https://www.amazon.de/Silhouette-America-SILH-BLADE-PREM-hobbyplotter-Schneideplotter/dp/B00YU7T7NU/ref=sr\_1\_2?keywords=silhouette+premium+blade+3+pack&linkCode=gs3&qid=1582548532&s=kitchen&sr=1-2)
Update 16.Mär.2020: A modified version can be fixed directly to an AMB Spindel, this improves the riggedness. Instead of the sponge I use a spring in this version
Print instructions
Category: Machine Tools Print Settings
Printer Brand: Prusa
Printer: i3 MK3
Supports: No
Resolution: 0.2mm
Infill: 40%
Filament: Prusament PLA Black
Notes:
Print the cap with scale 105% in x and y direction to allow easy fixing on the thread of the body.
25.Feb.2020: Updated to version 2 which is less flexible towards x & y direction.