Open Source Robotic Arm Wire Cut EDM Machine

Basics

• Part of the Open Source Digital Fabrication Construction Set
• A combinarion of the Open Source 3 Axis Wire-Cut EDM Machiene and the Open Source Robotic Arm Construction Set
• Allows for 5 (or more) axis EDM machining
• Good explanation + Demo in this video, at 13:26

Used For

• Same as the Open Source 3 Axis Wire-Cut EDM Machiene, but more DOF

Basic Design

Housing

• Holds all the below together

Controller

• Controlls all components
• Rasberry Pi + Arduino + Any neccissary sheilds?
• Connects to IO Panel and any external controls (PC, Server, WWW, etc)

IO Panel

• Touchscreen
• Optional Mouse + Keyboard

Fluid Pump

• Recirculats the dielectric fluid
• Does this to promote circulation
• Also provides pressure to debris clearing jets

Fluid Filter

• Cleans Debris (Such as Metal Dust) Out of the Dielectric Fluid
• Hydrocyclone + Standard Oil/Water Filter Cartridge
• Should also include sensors before and after filtration to determine fluid + filter effectiveness

Work Surface

• The Workpiece is attached to this

Fluid Bath

• Allows the Work Surface and Work Piece to be submerged in dielectric fluid
• Could be permanent or a slide up design

CNC Gantry

• Holds and Moves the Toolpiece
• Standard D3D Axis?

Robotic Arm

• Attaches to CNC Gantry?
• Holds Toolpiece Allowing For More DOF Than 3

Toolpiece

• A device resembling two fingers holding dental floss
• Works with the power supply

Wire Feeder

• A device with two wire spools (one for feeding new wire thru and one for receiving spent wire)
• Also need to design/find the mechanism for shooting the string to the other side to remove the need for manual wire threading

Fluid Resevoir

• Holds Spare Fluid
• Also holds the contents of the fluid bath when not in use

Useful Links

• Wikipedia Page on Electric Discharge Machining