Preliminary PXL support models with assembly fixtures

MSC_PXL.SLDASM

display state: disappear fixtures and ist

display state: disappear fixtures

1 of 4 guide cams

1 of 4 carriage rails

1 of 8 rail bond pads

3 kinematic mounts with bond pads

removable post allows disconnect from rails , required to• remove rail bonding fixture• connect and disconnect from external test supports

PIT_rail_mount_20mm.SLDASM

PIT_fixture_assembly.SLDASM(display state: Default_DisplayState-1)

rail_holder_assembly.SLDASM

end supports position end flanges for bonding to PIT andposition rail_holder_assembly.SLDASM

external rail supports for testing insertion of detector and engagement with kinematic mounts before PIT exists

grand_master_kin_assembly.SLDASM

note: the external rail support and PIT don’t occur together as shown here. It is either one or the other supporting the rails

rail_holder_assembly.SLDASM

with rails

provides precision placement of the rails for two gluing operations:1. bonding to PIT2. match bonding to external rail supports

precision drivers:• glue bond gap to PIT ( 50 m )• avoid binding ( 25 m or 200 m, depends on carriage design)• proper engagement with kinematic mounts ( 400 m ) • detector collision avoidance ( 250 m )

numbers give allowable envelope size

grand_master_kin_assembly.SLDASM

this assembly (shown with a PXL half) has 3 functions:1. placement of the

kinematic mounts for bonding to the PST

2. support of the kinematic mounts for tests of detector insertion mechanism

3. Support of detector halves in the Coordinate Measuring machine for spatial mapping operation. Position of the kinematic mounts should accurately match the locations in the PST

grand_master_kin_assembly.SLDASM

kin_assembly_east_or_west_with_bells.SLDASM

position reproducibility 10 m

MSC.SLDASM

• used latest model from Eric and Jason with following changes:– increased length of PIT– added a flange at the original PIT ending– drilled some holes for the rail mounts and

kinematic mounts