XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System1 Precision and repeatability of cam-shaft system in both directions (vertically and transverse), measured on undulator ends, for pitch and yaw motion as well. We are shooting for ± 5µPrecision and repeatability of cam-shaft system in both directions (vertically and transverse), measured on undulator ends, for pitch and yaw motion as well. We are shooting for ± 5µ (specification ± 7µ ) (specification ± 7µ ) Precision and repeatability of transverse travel (80 mm) on linear stages. We are shooting for ± 10µPrecision and repeatability of transverse travel (80 mm) on linear stages. We are shooting for ± 10µ Precision of a K-value adjustment using transverse linear stages.Precision of a K-value adjustment using transverse linear stages. We are shooting for ± 10µ We are shooting for ± 10µ Short term stability (10 hours) of the cradle and undulator.Short term stability (10 hours) of the cradle and undulator. We are shooting for ± 5µ (specification ± 5µ ) We are shooting for ± 5µ (specification ± 5µ ) What we are trying to achieve:

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System2 LCLS undulator substitute (on order). Expected on 11/15. LCLS undulator substitute (on order). Expected on 11/15. New cam-shaft movers (on order) with new gear boxes (on order). Expected on 11/25.New cam-shaft movers (on order) with new gear boxes (on order). Expected on 11/25. Modified transverse stages with 4” travel (in house).Modified transverse stages with 4” travel (in house). Motors (in house) and 90  gear boxes for these stages (on order). Expected on 10/31.Motors (in house) and 90  gear boxes for these stages (on order). Expected on 10/31. All transition plates, wedges and supporting parts (designs are complete, parts are on order). Expected on 11/25.All transition plates, wedges and supporting parts (designs are complete, parts are on order). Expected on 11/25. What components we need to start a final test:

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System3 LCLS new single cam-shaft mover New gear box with ratio 250:1 is installed. Calculation showed this ratio is enough to hold undulator with the girder in place. That’s why a motor without brake is used.

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System4 LCLS new double cam-shaft mover The same changes were implemented in this unit as in the single cam-shaft.

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System5 LCLS new double cam-shaft mover (detail) Hardness of the rings on the ball- bearings was increased from Rc to Rc

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System6 LCLS new single cam-shaft mover working with “V” pad The flat pad is replaced by one with a “V” shape - 16  angle. A double bearing is installed instead of the single bearing Its purpose is to replace sliding friction by rolling friction.

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System7 LCLS new single cam-shaft mover

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System8 LCLS new girder after welding

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System9 LCLS new girder after welding (detail 1)

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System10 LCLS new girder after welding (detail 2)

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System11 LCLS undulator on the girder

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System12 LCLS undulator on the girder (left end)

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System13 LCLS undulator transverse motion control

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System14 LCLS undulator on the girder (right end)

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System15 Provisions for the LCLS undulator replacement on the translation stage

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System16 LCLS undulator fixed support with the cam-shaft movers LCLS undulator fixed support with the cam-shaft movers Courtesy of Sushil Sharma and Bryan Rusthoven

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System17 LCLS undulator with the girder on the fixed support and earthquake bracing concept LCLS undulator with the girder on the fixed support and earthquake bracing concept Courtesy of Sushil Sharma and Bryan Rusthoven

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System18 LCLS lifting table to place the girder with an undulator to the fixed support Table data: 1.Lifting capacity 6000 lbs 2.Table size 48” X 32” 3.Min. height 37” 4.Max. height 59”

XFD – XF Engineering Group October 20, 2005LCLS Undulator Alignment and Motion System19 Design of the LCLS prototype alignment and motion system close to the completion.Design of the LCLS prototype alignment and motion system close to the completion. Multiple changes were implemented based on the breadboard test results and experience.Multiple changes were implemented based on the breadboard test results and experience. New hardware has been ordered and should be in house before 11/25/05.New hardware has been ordered and should be in house before 11/25/05. Final tests of the alignment and motion system are scheduled for 01/2006 in the Single Undulator Test (SUT).Final tests of the alignment and motion system are scheduled for 01/2006 in the Single Undulator Test (SUT). Design modifications will be implemented after the SUT if necessary and will be included in the FDR.Design modifications will be implemented after the SUT if necessary and will be included in the FDR. CONCLUSION