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G-EDM Gapstorm wire module - Backbone arrived

A project log for 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 05/26/2026 at 12:590 Comments

The new wire module design is almost ready and justway.com sponsored the backbone. Ordering process is straight forward and couldn't be easier. Uploaded the step file, selected the manufacturing process (Lasercut in this case), material, surface finish and it was good to go. Big thanks to the team from justway for providing their service and helping the G-EDM project getting forward.

https://www.justway.com/

The part is laser cut from solid 8mm stainless steel. This version has a belt driven wire feeder on the C-ARC itself and requires only some minor 3D printed add-ons which heavily reduces build complexity while improving rigidity and also the maximum cutting area.

The part was packaged well and arrived without surface damages. I haven't measured the tolerances but it seems to be within the range that is expected for laser cutting. Some of the holes had a perfect fit while some others had some residues from the cutting process. Lasercutting 8mm stainless steel does not create a mirror finish. But everything was within the expected range and to specs. Nothing to complain here.
They offers multiple surface finishes and I would have loved to get the black oxide finish but to reduce the cost for the prototype I went with the standard raw finish.

Ordering is straight forward: Uploading a STEP file, choosing the material, selecting the surface finish, and designating a product category for customs.

After the part passed the review process the order is ready for payment, and that's essentially all there is to it. The customer service team is friendly and readily available to assist if any help is needed, making the entire experience smooth and pleasant.

Stay tuned for the build process.

And this is how it will look:

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