¶ 2.You can choose either part 2 or part 3 to connect to aprt 1 depending on the situation. Then choose part 4 and 5 to connect depending on whether you have screws or glue.
¶ 3.Connection of aprt 6 by means of screws on the machine (increased stability)
¶ 4.Attach the assembled side filament holder to the printer.