Open Source Die-Sink EDM Machine

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Basics

Used For

  • Mold Making
  • Die Making
  • Machining Difficult Metals Like Tungsten
  • Hole Drilling (Especially of very small holes, or on difficult materials and/or geometries (such as drilling through a sphere) )
  • All of this with very high tolerances

Industry Standards

MC Machinery

Sodick

Makio

Existing Open Source Designs

"Scorch Works"

Dedicated DIY EBM Website

"Alchemist Dagger"

"My engines"

Minimum Viable Product

Basic Design

Housing

  • Holds all the below together

Controller

  • Controls all components
  • Raspberry Pi + Arduino + Any necessary shields?
  • Connects to IO Panel and any external controls (PC, Server, WWW, etc)

IO Panel

  • Touchscreen
  • Optional Mouse + Keyboard

Fluid Pump

  • Recirculates 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?

Toolpiece

  • A Hollow Cylinder (Similar to a drill chuck) that allows various sinkers to be attached
  • Works with the power supply
  • Quickchange optionally

Fluid Reservoir

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

Fluid Filter

  • Filters out the debris from machining (Such as various metal dusts and chemical powders created
  • Then Keeps the fluid at the sort of "Goldylocks" like position between deionized and tap water (Most likely using a PEM and/or a dillute and dump (Add in DIW dump out some of the "spent" fluid)
  • Will also need sensors to monitor that it is working effectively

BOM

Internal Links

External Links