RGR EZBuff

The RGR EZBuff is an open-source, 3D-printable optical disc polishing and resurfacing machine created by Dennis van den Broek, also known as PointerFunction. Designed as a cost-effective alternative to expensive commercial disc repair systems, the EZBuff aims to give retro game enthusiasts, collectors, and small game stores a way to recover scratched CDs, DVDs, and game discs without recurring consumable fees.

The machine uses a small motor and felt polishing pads to remove light scratches and contaminants. For deeper damage, the pads can be replaced with high-grit sandpaper to perform more aggressive resurfacing, though van den Broek recommends building a second unit for resurfacing to avoid cross-contamination between abrasive and polishing stages. The enclosure and structural parts are entirely 3D-printed, with a design that fits the build volume of compact printers like the Bambu Lab A1 Mini. According to the creator, a full unit can be made from a single 1kg filament spool.

The EZBuff does not cure disc rot or data-layer damage, and van den Broek cautions that all disc repair methods carry the risk of wearing through the protective layer if applied too aggressively. The project files, including assembly guides, are available on Printables, and the machine is fully open-source. As of mid-2026, no pre-assembled units were being sold commercially.