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 104

your own, but it is more easily accomplished with a team of two. Ideally, you would have ac-
cess to an experienced RepRap user to help you through any unclear parts. Even if there is no
one in your company or institution available, the RepRap Internet Relay Chat (IRC) channel is
always available to let the open-source community answer quick questions. 9
5.2.3 The frame
There is an equilateral triangle on each side of the frame of the MOST RepRap as seen in
Figure 5.5 . Initial assembly will be very loose. Do not tighten the nuts or be overly concerned
about their placement during first assembly steps; everything will be tightened up and prop-
erly placed in future steps.
FIGURE 5.5 The equilateral triangle on each side of the frame of the MOST RepRap.
Follow the image in Figure 5.5 and build two triangles each with two footed frame vertices,
one unfooted frame vertex, one rod clamp on the threaded rod connecting the two footed ver-
tices, 14 M8 nuts, 14 M8 washers and three 370 mm M8 threaded rods . 10 Using the 290-mm-
long jig, space each vertex from its neighbors and tighten the nuts so that a rigid triangle is
formed. The jig should be placed such that it is against the printed vertices near the washers,
but not on the washers. To make sure the holes line up, you can lay the triangles on top of each
other and insert six M8 bolts through each hole in the vertices. The bolts should go through
holes in both vertices easily, adjust the frame a litle if necessary.