Open Source Die-Sink EDM Machine: Difference between revisions
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==Controller== | ==Controller== | ||
* | *Controls all components | ||
* | *Raspberry Pi + Arduino + Any necessary shields? | ||
*Connects to IO Panel and any external controls (PC, Server, WWW, etc) | *Connects to IO Panel and any external controls (PC, Server, WWW, etc) | ||
| Line 53: | Line 53: | ||
==Fluid Pump== | ==Fluid Pump== | ||
* | *Recirculates the dielectric fluid | ||
*Does this to promote circulation | *Does this to promote circulation | ||
*Also provides pressure to debris clearing jets | *Also provides pressure to debris clearing jets | ||
| Line 74: | Line 74: | ||
==Toolpiece== | ==Toolpiece== | ||
*A Hollow | *A Hollow Cylinder (Similar to a drill chuck) that allows various sinkers to be attached | ||
*Works with the power supply | *Works with the power supply | ||
*Quickchange optionally | *Quickchange optionally | ||
==Fluid | ==Fluid Reservoir== | ||
*Holds Spare Fluid | *Holds Spare Fluid | ||
*Also holds the contents of the fluid bath when not in use | *Also holds the contents of the fluid bath when not in use | ||
==Fluid Filter== | ==Fluid Filter== | ||
*Filters out the | *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) | *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 | *Will also need sensors to monitor that it is working effectively | ||
=BOM= | =BOM= | ||
Revision as of 23:46, 9 January 2022
Basics
- Part of the Open Source Digital Fabrication Construction Set
- An electric discharge machining device (EDM)
- Uses a die, and high voltage electricity to precicely erode away material using the resulting plasma
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
- PS Eric Here, there are many designs so I just put these 3, Feel Free to Add More
Hackaday Article
Dedicated DIY EBM Website
"Alchemist Dagger"
- An Instructable Showcasing a Design by "Alchemist Dagger" (It utilizes a rather poor motion system, but the electronics showcase the potential for an ultra-simple EDM Power Supply
"Applied Science" 's Video + Design
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