Open Source Die-Sink EDM Machine: Difference between revisions
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*Die Making | *Die Making | ||
*Machining Difficult Metals Like Tungsten | *Machining Difficult Metals Like Tungsten | ||
*Hole Drilling | *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 | *All of this with very high tolerances | ||
| Line 23: | Line 23: | ||
=Existing Open Source Designs= | =Existing Open Source Designs= | ||
* | == "Scorch Works" == | ||
*[https://www.youtube.com/watch?v=-a1JEWbnvMo A Video by the YouTube Channel "Scorch Works" Titled "EDM (electric discharge Machining) Machine Walkthrough" | |||
*[https://hackaday.com/2016/08/07/homemade-edm-can-cut-through-difficult-materials-like-magnets-with-eease/ | *[https://hackaday.com/2016/08/07/homemade-edm-can-cut-through-difficult-materials-like-magnets-with-eease/ The Hackaday Article on their Design] | ||
*Their design utilizes largely salvaged components, it uses a [[Clothes Dryer]] [[Heating Element]] as the stabilizing resistor, [[Microwave Oven Transformers]] etc | |||
*They do mention a [[Hand Traced PCB]] although much of it's functions can be largely replaced by an [[Arduino]] or [[Universal Controller]] etc | |||
*It is a die sink model, but does have the option to flow water down the linear actuator to the toolpiece | |||
==Dedicated DIY EBM Website== | ==Dedicated DIY EBM Website== | ||
*[http://www.homebuiltedmmachines.com/ Site Link] | *[http://www.homebuiltedmmachines.com/ Site Link] | ||
== | == "Alchemist Dagger" == | ||
*[http://www.instructables.com/id/EDM-Electrical-Discharge-Machining/ | *[http://www.instructables.com/id/EDM-Electrical-Discharge-Machining/ 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]] | ||
=="My engines"== | |||
*[https://youtu.be/CwKV--9E7ZI A Video by the YouTube Channel "My engines" Titled "Building a PULSE EDM with the DIY book of Ben Fleming Part 1" ] | |||
=Minimum Viable Product= | =Minimum Viable Product= | ||
| Line 41: | Line 47: | ||
==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 50: | Line 56: | ||
==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 71: | Line 77: | ||
==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== | |||
*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= | =BOM= | ||
* | * | ||
= | =Internal Links= | ||
* | *[[EDM]] | ||
= | =External Links= | ||
*[https://en.wikipedia.org/wiki/Electrical_discharge_machining Wikipedia Page on Electrical Discharge Machining] | *[https://en.wikipedia.org/wiki/Electrical_discharge_machining Wikipedia Page on Electrical Discharge Machining] | ||
[[Category: Multimachine]] | |||
Latest revision as of 06:00, 16 March 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
"Scorch Works"
- [https://www.youtube.com/watch?v=-a1JEWbnvMo A Video by the YouTube Channel "Scorch Works" Titled "EDM (electric discharge Machining) Machine Walkthrough"
- The Hackaday Article on their Design
- Their design utilizes largely salvaged components, it uses a Clothes Dryer Heating Element as the stabilizing resistor, Microwave Oven Transformers etc
- They do mention a Hand Traced PCB although much of it's functions can be largely replaced by an Arduino or Universal Controller etc
- It is a die sink model, but does have the option to flow water down the linear actuator to the toolpiece
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
"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