3D Printing For Dummies by Richard Horne & Kalani Kirk Hausman

Author:Richard Horne & Kalani Kirk Hausman
Language: eng
Format: epub, azw3
ISBN: 9781119386322
Publisher: Wiley
Published: 2017-05-22T00:00:00+00:00

Paste

Paste materials can be used in 3D printers that have a modified extruder — usually, a syringe or other type of cylinder. Such extruders press out the paste material in much the same way that you press cake icing from a piping bag. Syringes are often chosen for being food-safe, but don’t reuse these syringes for different materials or try to use a normal thermoplastic extruder.

All sorts of food-based materials can be used in a 3D printer with an appropriate extruder, but the paste must have the consistency of toothpaste so that layers can be built up on top of one another. Frosting, marzipan, cookie-dough mix, and masa (Spanish dough used to make tortillas) are ideal candidates for 3D printing. Chocolate is a much more complex material for 3D printing, but you can print chocolate items at home. If you pay close attention to temperature and cooling methods, you can provide some wonderful possibilities for decoration and customize cakes and treats for loved ones and friends.

In addition to foods, almost any other material in paste form can be used as a 3D-printing material. Cements, fast-setting resins, ceramics, and even precious-metal clays can allow you to produce traditional artistic objects from solid materials (see Figure 11-15). We look at the paste extruder in greater detail in Chapter 14.

FIGURE 11-15: Fine porcelain clay can be printed with a paste extruder and then fired in a normal kiln to produce ceramic.

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