1. ½ ” steel plates 1/8 ” Steel C channels; 3 ½” inch wide each The Laser Holder Support Frame Geophone platforms (to characterize fixture motion) Stiffening plates 39 ” Tilt adjustment (currently disabled by spacers epoxied between plates) Laser head holder (collets not shown) We could do away with the geophone platforms to reduce weight, if the fixture can be characterized using laser system. Bolts (1/2-13) to attach to clamp

2. Laser Holder: Critical Dimensions CQS Magnet Laser Head Holder CQS Test Stand

3. Laser Holder Attachment to the CQS stand Clamp 1/2-13 Bolts 3 on each side Laser holder base is bolted to a clamp, which in turn is attached to the test stand.

4. Laser Head Holder on the CQS stand