Thingiverse
CNC 2418/3018 4th Axis and Ring Engraving Mandrel by jpoles1
by Thingiverse
Last crawled date: 3 years, 1 month ago
This design uses a standard NEMA17 stepper motor as a 4th axis for a standard CNC 2418/3018. A custom deisgned mandrel serves to hold a ring in place while a standard 30 degree V-engraving bit is used to engrave soft metals such as brass.
For more information you can read my blog post about this project:https://blog.jpoles1.com/2021/02/27/designing-a-4th-axis-for-engraving-rings-on-the-cnc-2418-3018/
Note: In order to edit the original FreeCAD design you will require the LinkStage 3 version of FreeCAD published by RealThunder (https://github.com/realthunder/FreeCAD_assembly3/releases)!
Bill of Materials:
NEMA 17 Stepper Motor
6x M5-16mm screws for securing to CNC build plate
6x M5 nuts
1x M3-35mm screw for driving wedge into mandrel
1x M3-12mm screw for securing mandrel to stepper motor shaft
4x M3-16mm screws for securing stepper motor to mount
2x M3-20mm screw for axles on steady rest
https://blog.jpoles1.com/wp-content/uploads/2021/02/ring-engrave.mp4
For more information you can read my blog post about this project:https://blog.jpoles1.com/2021/02/27/designing-a-4th-axis-for-engraving-rings-on-the-cnc-2418-3018/
Note: In order to edit the original FreeCAD design you will require the LinkStage 3 version of FreeCAD published by RealThunder (https://github.com/realthunder/FreeCAD_assembly3/releases)!
Bill of Materials:
NEMA 17 Stepper Motor
6x M5-16mm screws for securing to CNC build plate
6x M5 nuts
1x M3-35mm screw for driving wedge into mandrel
1x M3-12mm screw for securing mandrel to stepper motor shaft
4x M3-16mm screws for securing stepper motor to mount
2x M3-20mm screw for axles on steady rest
https://blog.jpoles1.com/wp-content/uploads/2021/02/ring-engrave.mp4
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