Laminates and Their Properties

At the same time, reinforced composites have rather low properties in transverse direction.

Note

The observed difference in properties in different directions is called anisotropy.

Laminates with different stacking of composite layers are commonly used to counter this weakness. In such structures, layers with different orientations are designed to carry various acting loads.

This is the most popular, but not really good way to produce composite structures. Effective properties of the laminated composite are much less than the properties of the unidirectional composite in fiber direction.

Applications of Composite Materials

Reinforced composites have high stiffness and strength in the fiber direction and they are also lightweight. Therefore, there is a growing interest in such structural materials in aerospace, automotive, shipbuilding industries where weight plays a paramount role.

Note

Composites are very stiff and strong and at the same time are lightweight materials.

Composite Materials. Structural Composites

Composite materials (composites) consist of several components with different properties and distinct boundaries between the components. The composites can be “filled” with some particles or short/chopped fibers or “reinforced” with long (endless or continuous) fibers. A matrix is a material that bonds the fibers together or is filled with short fibers. Typically, the matrix has much lower mechanical properties than the fibers.

Note

Only composites with long (or continuous) fibers are actually structural materials because only long fibers provide high stiffness and strength!

So, further we will talk mainly about continuous fiber composites.

Structural Materials

Structural materials provide sufficient stiffness and strength. These characteristics allow a structure to maintain its shape and dimensions under loading or any other external action.

Typical structural materials are steel, aluminum, titanium alloys, concrete and some other. In addition, some composites are also structural materials.

Cutter positioning

Note

Servo is under voltage and try to keep the torque, at each moment of time. It means that if you try to tighten it with too much force you can burn the servo, please be careful and follow the instruction.

To correct the cutter positioning you need to follow these simple steps:

  • Switch ON the Composer
  • Using the 2mm hex key from Tool Kit, loosen the bolt that fixing cutter on the servo’s shaft.
  • Use tweezers from Tool Kit to rotate cutter counter-clockwise. The correct position is when cutter is close to upper small hole in cutter sleeve but do not close it.
  • Keep the cutter position with tweezers and tighten a little bit the bolt. Do not use too much force to avoid servo’s damage!
  • Switch off the Composer
  • Tighten bolt completely – when you try to tighten the bolt servo will rotate to their max angle, when it reaches that angle tighten bolt with some force.
  • Switch on the Composer – servo will set on its “Zero angle”
  • Make sure that upper hole of the cutter sleeve completely open and cutter doesn’t shift during “cut” from Menu.

EEPROM test

In case of a problem with Z or offsets calibration, it is necessary to check the EEPROM. Operating procedure will be:

  1. Open settings page
  2. Change any parameter to any value , for example, Z offset to 0, and press OK
  3. Turn off the printer for a minute and turn it back on.
  4. Check the changed value, it should match the entered.

Heater faild

In the case when Сomposer fails to heat one of the extruders, it will gives “Heater failed” error.

To identify the cause of the error, you need to check the heaters. Operating procedure will be:

If the measured resistance is close to the correct (10-12 Om), it’s means that the temperature sensor works good. You will need to contact your local distributor or write us on support@anisoprint.com