Cage pipe diameter?

FIRST General Forum
1

Cage pipe diameter in the manual says 1-3/8 schedule
The official field drawing says 1in schedule 40…
The on shape cad says 1.315 od

2

I noticed that as well. The official drawing from FIRST shows 1.32. This is a good question for the Q&A, but with the CAD and drawing showing 1.31/1.32, I would assume it will be that size.

3

I’m pretty sure this was covered in another thread. All signs point to it being 1" schedule 40 and whoever was writing the manual used the OD accidentally.

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Team Update 01:

Section 5.4.1 CAGE
CAGES are 2 ft. tall and 7⅜ in. wide (outside dimension) (~61 cm tall and ~19 cm wide) rectangular structures. Each CAGE is a welded structure made of 4 steel 1-⅜ in.1 in. Schedule 40 pipes, a bottom plate, a top plate, and an eyebolt with fastening hardware. CAGES are suspended from the truss structure in specific locations as shown in Figure 5-9 and hang at shallow or deep positions according to the corresponding team’s selection (see section 6.3.5 CAGES for details) such that the bottom of the cage is 3½ in. (~89 mm) and 2 ft. 5⅜ in. (~75 cm) 2 ft. 6-1/8 in. (~77 cm) and 3-1/8 in. (~79 mm) from the carpet respectively. Deep CAGES are suspended using chain that is 19 links of ¼-in. Grade 43 zinc plated chain.