3.1 Made of sterile covers laser cutting machine, 2 d shell.

In our school this laser cutting machine, adjust the power to 75% when using, carving velocity modulation 20 mm/s, the board cut 3 mm no problem at all.

Using a laser cutting machine cutting design.

3.2 Use hot melt glue and screws to sterile covers shell and low noise blower, nylon gauze screen pack together.

3.3 The sealed enclosure before, add custom HEPA H14 air purification filter element.

3.4 Connect the blower and plug.

Note that the plug of the brown line is positive, the two lines of the blower in the thick of the root is the anode.

3.5 Testing equipment, adjustment, finally complete the project.