printers have been proven to be extremely versatile machines — and I’m not just talking the wide range of parts they can print. The layout and electronics of a typical Cartesian are useful for a wide range of applications, and we’ve seen printers repurposed as everything from CNC mills to pick-and-place machines. If you’ve got a printer, that means you basically have a multi-talented robot at your disposal. Andy Gelme and the Community HackerSpace (CCHS) in Melbourne, Australia have taken advantage of that to create the condiment-dispensing SauceBot.

was created as a group project at the hackerspace, and is designed to extrude ketchup — tomato sauce as they’d (wrongly) call it — and mustard onto a “snag.” That’s essentially just Australian slang for a sausage-based hot dog on a piece of white bread, which I definitely had to Google. Two giant arcade buttons let hungry patrons choose between tomato sauce or mustard, and SauceBot will happily dispense the . It even goes so far as to apply the tomato sauce in the official, internationally-recognized zig-zag pattern.

For this build, they appear to have started with a fairly standard Prusa-style 3D printer made from clear acrylic. The usual end and extruder have been replaced with a pair of peristaltic pumps that pull the condiments from their respective containers through tubes and out onto the snag. It’s running a modified version of the Marlin firmware, which they’ve made available on GitHub so you can build your own SauceBot. Language barriers aside, this is a fantastic use of a 3D printer.

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