WT-01 | Opensource Wire EDM Tool

Introducing the WT-01, the world's easiest wire EDM conversion!

Designed for all desktop 3D printers, the WT-01 easily converts your FDM machine into a metal cutting powerhouse!

Electrical discharge machining, or EDM, vaporizes any conductive material through the use of high-power electrical pulses. You can think of these as microscopic lightning bolts blasting craters out of the target material!

EDM can machine any conductive material. Be it aluminum, titanium, or even hardened steel, your WT-01 will be able to cut it. All you need is an EDM power supply and wire! These can be self-sourced or purchased at rackrobo.io.

The WT-01 has been released for free to the public domain.

Setup

To get started, download the pre-oriented .zip files from the “files” section. A pre-sliced Bambu Lab multicolor project has been provided.

The example design provided for the WT-01 is made to fit a stock Ender 3 V1 3D printer. Included in with the files is a master assembly and featureless tool mount. Modify the featureless tool mount to fit your own 3D printer.

Detailed assembly instructions can be found on rackrobo.io and on the Github page. Documentation is a living document. Consistent updates expected.

Assembly and use videos will be posted in the future on the Rack Robotics Youtube channel.

Control

WEDM benefits greatly from closed loop speed control based off of the analog and digital outputs of the Powercore V2 EDM PSU. A closed loop WEDM modification will be coming to Klipper in the future to support thicker materials.

Updates

[24.09.02] - Hardware update and minor fit changes.

• Replaced old vat Wagos with 2x 221-415 for compliance with Wago standards
• Added strain relief anchor to vat Wago bank
• Added strain relief anchor to Tool Mount and Featureless Tool Mount
• Fixed hole placement on Ender 3 Tool Mount
• Shortened Back Lower Base to improve fit and assembly
• Added additional wire path to Back Lower Base for shorter electrical path
• Added additional volume for potting on Back Lower Base

[24.06.29] - Significant update. EMI fix. Fitment and QoL changes.

• Updated wiring diagrams to correspond to new method. Reduces EMI of system while in use
• Updated Tool Mount Wago placement
• Updated Vat Wago placement
• Added more clearance for Ender 3 Tool Mount
• Updated Featureless Tool Mount to reflect the above
• Added more material to front of Flushing Cap and Tensioner body to improve strength and print quality
• Update Magnetic Cover for Tensioner Body to work with additional volume of Tensioner Body and Flushing Cap
• Increased clearance on Waste Spool. Easier install and less likely to collide with fasteners

[24.06.16] - EDM Vat added. Modified tool mount to accept M4x16 CS. Previous version hole too shallow on one hole. 

[24.06.14] - First files posted.