Charmilles history dates as far back as 1861 when Staib & Cie was founded in Switzerland. But it was only in 1952 when the company, known then as Atelier des Charmilles, started developing EDM for industrial applications. The entire line is now called GF Machining Solutions under the Georg Fischer Corporation.

Electrical discharge machining (EDM) also goes by many other names: spark machining, spark eroding, die sinking, wire burning, or wire erosion. This machining process uses electrical discharges to form or create the desired shape. In this process, a dielectric fluid separates two electrodes that rapidly fires electric discharges, where the material is being removed from the workpiece. The erosive effect of the discharges was first observed as early as 1770 by Joseph Preistly, an English physicist, chemist, natural philosopher, separatist theologian, grammarian, multi-subject educator, and liberal political theorist.

There are different EDM types with their own distinct characteristics, but what they all have in common is that EDM techniques are mainly used for hard metals since they would be extremely difficult to machine using traditional techniques. Of course, since electrical discharges are at play, EDM techniques work best with highly conductive materials. Then again, methods have been proposed for insulating ceramics as well.

Although Charmilles EDM machines like the Charmilles Robofil 310 were made in the ‘90s, a lot of these are still running today- but already obsoleted and almost without OEM replacement parts like screens and displays. When these break down, like if the screen is already too dark that you have to hold a flashlight against it just to be able to read the characters on it, you might think it’s reasonable to purchase a brand new EDM altogether especially if the existing unit has served its purpose for decades. That is, if you have a fortune to spare.

What other choice do you have, you say. Is it worth it to have that old CRT repaired? Considering how old that display technology is, probably not. But luckily for you, there’s one option left: you can upgrade your CRT to LCD.

Some of the Charmilles LCD upgrade kits available on our inventory are for Charmilles CC14, Charmilles Roboform 400, and Charmilles Robofil 510. The LL Series version of the aforementioned LCD upgrade kits are: Charmilles CC14, Charmilles Roboform 400, and Charmilles Robofil 510. What’s the difference of LL series from the Premium LCDs? I thought you’d never ask, you can read up here (but I’ll let you in on a secret, they’re basically the same so if I were you I’d save 200 bucks and go for the LL versions).

If there’s anything unclear, or if you have EDM/Charmilles-related questions we weren’t able to cover in this discussion, or even if you have questions not related to EDM/Charmilles at all, hit us up! Send an email, fill out and submit the inquiry form, give us a call, or chat with us- it’s all here.

I hope you I made 2 minutes of your time worthwhile. Ciao!


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