GMFC, more than 18 years of innovation in foam cutting


Life time license — Life time service !!!

GMFC, a software for cutting foam shapes. GMFC provides specific functions for cutting wing cores, and also support any complex shape such as a fuselages and letters.

GMFC is available in four versions, EXPERT, PRO, LIGHT and PE (see functionalities for a detailed comparison):

  • GMFC LIGHT, a version at a very low cost that provides functions to cut wings.
  • GMFC PRO, everything you need for cuttings wings, fuselages or any shape.
  • GMFC EXPERT, the high end version that ease the handling of complex DXF files.
  • GMFC PE, the historic GMFC version that requires Windows 98 (Discontinued).

GMFC works with two types of interfaces: (i) parallel port interfaces with a timer (see interfaces) for 32 bit versions of Windows, (ii) the GGC adapter that connects most of the parallel motor interface through USB and works for all Windows versions. For parallel port interfaces, GMFC requires a specific driver that is available for Windows 2000/XP/Seven/8/10 (32 bits) for the LIGHT, PRO and EXPERT versions.

GMFC is available under a shareware license. After installation and the first run, all GMFC functionalities are available for a duration of 30 days. After that time, cutting functions will be disabled. Nevertheless, the design part of GMFC is still fully enabled.

To permanently activate cutting functions, you must buy a license key which is specific to a given machine. Only the cutting machine needs a license key. Thus, you may share a single GMFC license among a club or a group of friends.


If you are purchasing a used computer with a licensed version of GMFC, you should have the seller contact me to transfer ownership. Otherwise, your license will not be valid.

5 thoughts on “GMFC, more than 18 years of innovation in foam cutting

  1. Just linked the lcd display to the GGC card, and all was not working properly. Thanks to Gilles’ rapid and constant assistance, we were able to diagnose the problem. ie. I had purchased a 16 x 2 line back lit display, and he patiently guided me to modifying the circuitry to get it to work.

    Many thanks Gilles

  2. Great new page Giles!

    But you forgot the download section….. 😉

    1. oops… I though I did… will correct that soon.

  3. I’m in the process of wiring the GGC USB adaptor and everything seems to be fine so far.

    I’ve connected the LCD and switched on my laptop, the LCD is blue background and white characters.

    There is no blue backlight and the white characters although working are faint, I assume this is because the backlight is not illuminated ?

    The spec sheet for the LCD shows pin 15 Backlight Anode and pin 16 Backlight Cathode.

    These two pin are not connected on your wiring diagram. I’m not really into electronics and don’t want to do anything that would damage the adapter.

    So my questions are ( and they may be obvious to you) but if I connect the Backlight Cathode to ground, where is the best place/pin to pick up the positive voltage for the Backlight Anode?

    Do you think this will solve the problem?

    I’ve built the GGC in a metal project box does that need to be connected to ground ?

    1. Indeed, this is because the backlight is not illuminated. You can connect pin 16 lcd to vss and pin 15 lcd via 220/300 ohm resistor to vdd.

      I would not connect the box to the ground.

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