Close
0%
0%

G-EDM

The G-EDM is an electrical discharge machine that supports sinker EDM, EDM engraving, EDM drilling and Wire EDM operations. #Drahterodieren

gedm-devgedm-dev
Following
Liked Like project

Just one more thing

To make the experience fit your profile, pick a username and tell us what interests you.

Pick an awesome username
hackaday.io/
Your profile's URL: hackaday.io/username. Max 25 alphanumeric characters.
Pick a few interests
Projects that share your interests
People that share your interests

We found and based on your interests.

Choose more interests.

OK, I'm done! Skip
Similar projects worth following
12.3k views
20 comments
78 followers
View Gallery
The G-EDM is a fully automated ESP32 based three axis EDM CNC machine that supports different kinds of electrodes like brass tubes or brass sheets and is highly customizable. With the wire EDM extension it is possible to cut high precision parts out of different metals.

It uses 3D printed parts where it is possible and in the future it may support even laser and mill operations. The firmware provides many EDM specific features and is available on Github too: https://github.com/G-EDM/G-RBLevo

The G-EDM pulse generator is a modern buck converter based pulse power supply that does not need a power resistor.

All PCBs use big ground planes, feedback signal traces are fenced with via stitches and in general all ground zones on different layers are connected together with via stitches to get the best possible performance out of it.

https://www.youtube.com/@G-EDM
Contact: goblin-dev@proton.me

The G-EDM ( new video )

The final version of the control panel:

View all 77 project logs

Enjoy this project?

Share

Discussions

jb333 wrote 12/28/2024 at 17:05 • point

Just placed my order with PCBWay for motion boards! :)

  Are you sure? yes | no

gedm-dev wrote 12/28/2024 at 17:29 • point

You need the pulseboard too. Go for the EVOIII board as it is much easier to setup compared to the evoII cube.

  Are you sure? yes | no

jb333 wrote 12/29/2024 at 07:00 • point

Of course! :) 

I agree with you, the EVO2 cubes are works of art, but the EVO3 boards have to be a lot easier to cool! And, I appreciate the minimal number of connectors; That reduces costs a bit!

See, I'm very poor, minimum disability payment, so I can only afford to do one step at a time; Here's my plan:

1st: I bought a 38-pin ESP32-WROOM-32 with CP2102 USB Interface, a 38-pin breakout board, and rainbow wires with 2.54mm female terminals. Prices = $7, $3, and $0.20, respectively.

2nd: Installed VSCode and the platform.IO extension, then compiled and uploaded the firmware to the ESP32. Price = FREE - Yay Roland! :)

3rd: Bought a 2.4-inch iLi9341 Display with XPT2046 Touch Input. Price = $10

4th: Soldered J1 on rear of screen, then confirmed firmware and touch input, using the breakout board and rainbow wires. Price = FREE - Yay Roland! :)

5th: Ordered motionboards. Price = ~$130 for 20 PCBs.

6th: Acquiring components to solder motionboards.

7th: Order Stepper Motors to confirm motionboards, using power supply I already have.

8th: Order EVO3 pulseboards.

9th: Order components to solder pulseboards.

10th: Order Power Supplies, Wires, Case, etc.

11th: Order 3D-printed parts, including the G-EDM v1 toolhead.

12th: Order an "Aluminum-Foil" Enclosure for RF shielding.

13th: Order gantry plate. (I'm guessing that's the right term.)

14th: Order Aluminum Extrusions.

15th: Build plexiglass tank with filters.

16th: Install extraction fan.

17th: Buy dielectric fluid.

18th: Calibrate Machine and start testing!

I think that's everything! I hope to get this done sometime this Summer, if my budget and health will allow it.

  Are you sure? yes | no

gedm-dev wrote 12/29/2024 at 11:14 • point

Sounds like a plan.

  Are you sure? yes | no

gedm-dev wrote 12/29/2024 at 12:03 • point

PS: I still like the cube. It feels rock solid while the EVOIII board does flex easy due to the cutouts. But for me they are too much work building compared to the new board. If you want the raw cube PCBs I would give them away for free if you pay the shipment.

  Are you sure? yes | no

jb333 wrote 12/31/2024 at 23:03 • point

WOW!!! That's Extremely Generous! :) 

I just sent you an e-mail.

  Are you sure? yes | no

yfsnd wrote 06/11/2024 at 05:38 • point

Very nice design! I am very interested. Have you shared the circuit schematics and the PCB files? Where can I check them?

  Are you sure? yes | no

Mike K wrote 03/13/2024 at 13:31 • point

Amazing work. I am waiting for the PCB files to build and test one myself. I had made an edm machine in the past but my spark wasnt strong enough. Hopefully this board works in my machine.

  Are you sure? yes | no

dgourlay wrote 11/22/2023 at 22:44 • point

this is GREAT!  I just saw your youtube.  Excellent work!

  Are you sure? yes | no

gedm-dev wrote 11/23/2023 at 07:41 • point

Thanks. Wish it would be finished soon. But still so much to do.

  Are you sure? yes | no

H wrote 10/06/2023 at 00:59 • point

Looks amazing so far! As far as I know there haven't been any other EDM makers that were willing to share their files, so thanks (even though you're not to that point yet)!

  Are you sure? yes | no

gedm-dev wrote 10/06/2023 at 02:19 • point

The only thing unreleased are the PCBs and people may be surprised how simple they actually are. The ESP motion controller is jsut a breakout board that makes life easier. The pulseboard is a little more complex but still pretty basic. At some point they will be available.

  Are you sure? yes | no

H wrote 10/06/2023 at 23:51 • point

Oh dam I should look more into this. I don't need the motion board since I already have individual drivers + breakout boards that are easy to wire

  Are you sure? yes | no

gedm-dev wrote 10/07/2023 at 00:34 • point

The breakoutboard is very useful. It extends the SPI Mosi/MISO/CLK pins and allows to wire the display without hacking 3to1 jumper wires.

  Are you sure? yes | no

Jimmy wrote 10/04/2023 at 08:44 • point

Does your GRBL version backtrack on short?

  Are you sure? yes | no

gedm-dev wrote 10/05/2023 at 07:26 • point

Yes. The planner of grbl was replaced with one that can move back in history.

  Are you sure? yes | no

Piotr wrote 08/10/2023 at 00:00 • point

How feedback circuit looks like? I want to build similar machine and have problem in this part.

  Are you sure? yes | no

gedm-dev wrote 08/10/2023 at 01:31 • point

The feedback is just a voltage divider. that outputs between 0 and 2.8v depending on the voltage drop created. Everything else happens at software level.

  Are you sure? yes | no

joram wrote 07/12/2023 at 08:48 • point

This looks interesting. Is the esp32 code already in a sharable state?

  Are you sure? yes | no

gedm-dev wrote 07/12/2023 at 12:49 • point

Almost. I just need to confirm that the Y axis works too. Currently building the axis. Should be ready soon.

  Are you sure? yes | no

Similar Projects

Brushless driven four leg quadruped
Project Owner Contributor

BLDC Walker

peter-wasilewskiPeter Wasilewski

An open-source, 3D printed, high precision robotic arm with trainability
Project Owner Contributor

Dexter

haddington-dynamicsHaddington Dynamics

The second version of quadrupedal robot based on custom brushless actuators
Project Owner Contributor

Wolfie

peter-wasilewskiPeter Wasilewski

Bringing analog hvac system into home automation.
Project Owner Contributor

Apartment HVAC IoT

pydrewPyDrew

Does this project spark your interest?

Become a member to follow this project and never miss any updates

Going up?

About Us Contact Hackaday.io Give Feedback Terms of Use Privacy Policy Hackaday API

© 2025 Hackaday

Yes, delete it Cancel

Report project as inappropriate

You are about to report the project "G-EDM", please tell us the reason.

Send message

Your application has been submitted.

Remove Member

Are you sure you want to remove yourself as a member for this project?

Project owner will be notified upon removal.