RepRap for Science—How to Use, Design, and Troubleshoot the Self-Replicating 3-D Printer - Open-Source Lab: How to Build Your Own Hardware and Reduce Research Costs - page 140

FIGURE 5.43 Budaschnozzle attached to the x -axis.
5.2.9 Electronics
Assemble the BOM for the electronics as shown in Figure 5.44 :
Melzi boards
Two printed Melzi mounts (printed)
Four M3 × 10 screws
Four M3 bolts
Four M3 washers
Wires
Heat-shrink tube
Lighter or heat gun
Zip ties