Press brakes are a workshop staple when working with sheet metal. They’re ideal for executing accurate and repeatable bends over and over again. Typically, they’re fitted with steel tooling that can hold up to thousands of press cycles. However, such tooling is expensive, and time consuming to produce. [Anthony] recently had a job come through the shop that required a unique internal radius. Rather than rush out and buy tooling, he decided to 3D print his own instead!
The press brake tools were printed on a standard Prusa i3, using regular PLA filament. There’s nothing particularly special in the process, with the prints using 12 perimeters and 20% infill. Despite being made of plastic, the tools held up surprisingly well. In testing, the parts were able to bend up to 3.4 mm steel, undergoing several cycles without major visible wear. [Anthony] also experimented with gooseneck parts, which, while less robust, make it easy to accommodate more complex sheet metal parts.
3D printing is a great way to produce custom press tooling, and can be done far more cheaply and quickly than producing traditional steel tooling. While it’s unlikely to be useful for long production runs, for short runs that need custom geometry, it’s a handy technique. We’ve even seen 3D printed punch-and-die sets, too. Video after the break.