Always have a draft angle of at least how many degrees when vaccuforming?

When vacuum forming, a draft angle is essential for ensuring that the formed plastic can be easily removed from the mold without causing damage or distortion. A draft angle allows for the shrinking of the material as it cools and provides clearance between the mold and the formed part, facilitating a smooth release.

Having a draft angle of at least 3 degrees is generally recommended. This degree of angle strikes a balance between ensuring the mold can be released effectively and not compromising the detail of the formed part. If the angle is less than this, there could be an increased risk of the material binding to the mold, which can lead to tearing or other defects during the demolding process.

In summary, a draft angle of 3 degrees is optimal in vacuum forming applications because it prevents issues associated with removing the formed material and helps maintain the integrity of the final product.