PETG (Polyethylene terephthalate glycol) is a useful 3D printing material for mechanical early-stage prototypes. It’s a great option that merges the cost-effectiveness of PLA and functionality of ABS. Although not ideal for aesthetics, this material is known for its impact resistance, warpage resistance, low shrinkage rate and high head deflection temperature. Printers typically run at a slower speed for this material, so it does have improved tolerance capabilities considering it’s a hobbyist-level material.
Elongation at Break
Modulus of Elasticity
PETG prints with a relatively smooth surface, but is not the most ideal for aesthetics.
Support is typically more difficult to remove from PETG parts than PLA parts, so scarring is very common. This material also has a tendency to ooze and clump around a printer nozzle. As a result, stray hairs and very small blobs may also appear along a surface, typically at the beginning or end of the layer path.
Max Part Size [x, y, z]
Min Clearance + Gaps for Fit
Min Wall Thickness