The week of February 24

Last week we passed a significant milestone at the HET. We brought the tracker bridge out from Austin and lifted it into place. It went very smoothly and you can find a video of the lift at

This week we are cabling up the last of the X and Y cables. Then we will test the X motion of the tracker including the X-skew prevention under full closed loop control. Late in the week and extending into the next expect to start the installation of the Y drive system (including the so called anti-gravity drive). We hope to be able to gain back some of the two weeks of time we have slipped on the schedule by also putting the hex drive together at the same time.

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