Printing the A test part

Test part “letter A” introduces you to capabilities of your Composer A4 and also serves as a combined quality test. Press Print > A_letter_test.gcode and watch through the steps of the printing process.

  • After print start, both extruders, plastic and composite, start to heat. When composite extruder reaches 235C composite nozzle will print a short purge line(composite thread) in front of the build plate. It must be glued to the surface and look smooth and uniform. At the end of printing the purge line you will hear a characteristic sound of the fiber cutter.
  • After printing the purge line, the machine will start with the first plastic layer. Check if the plastic perimeters look the same everywhere along the part. The first layer must be nicely glued to the build plate. At the same time, wipe tower will be started on the left side of the build plate.
  • After several plastic series, the machine will go the first fiber perimeter. Due to the process features, it may look a bit wobbly, but the layup paths will normalize later on. During the next plastic-composite cycles, fiber perimeters will be surrounded by plastic ones. Make sure the plastic and fiber perimeters do not intersect, and fiber perimeters are laid without displacements.

Inspect the printed part, paying special attention to side walls quality. Check the surface smoothness visually. You can compare it to the wipe tower side, the quality of the print must be roughly the same.

1 – Fiber perimeters, 2 – Plastic perimeters, 3 – Cellular infill, 4 – Top and bottom solid layers

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