Image Details
Caption: Figure 13.
The 10 petals mount into a large integration ring (FPR), about 1/4 of which can be seen in the left photo. At the upper right, a petal is shown from the side, illustrating the curved front surface. We made the back surface flat to facilitate machining, metrology, and mounting of hardware. At the lower right, two petals are placed adjacent to each other at their separation distance (0.6 mm) when installed in the ring. Individual robot/fiducial mounting holes can be seen, each with a precision spotface and M8.7 × 0.35 mounting thread. Also visible (in the upper of these two petals) are accessory mounting holes, which we located in the natural gaps which occur along the irregular edge of each 36° petal.
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