Cutting the Parts II - Printing in Plastic: Build Your Own 3D Printer - page 52

Figure 5-3. Part I and J cut and labeled

Figure 5-4 shows the location of the Table Bearing Supports. Parts I and J allow the Table (Part C) to
move back and forth. The Table contains a set of rails that will move back and forth between Parts I and J
(one on each side of the table). This will be possible since the Parts I and J will contain v-groove bearings
that keep the table rails moving along a single path.

■ Note You'll noticed two long threaded rods in Figure 5-4 (a threaded rod is a continuous rod that is threaded

like a screw). The threaded rods keep the bearings tight against the table rails when the rod is snugly tensioned
(more on using tension rods in Chapter 13).