Use a 3D software to design and fabricate a pen holder.
Develop a 3D sketch of the pen holder
Sketch a pen holder using Fusion 360.
Cut the 2 ends and sides of the pen holder.
Use the laser cutter to cut the 2 ends and sides using card board.
Assemble the parts to form the pen holder.
The 4 pieces of card board can be assembled easily by slotting the oarts together.