LIGO Document E1200700-x0
- DCN to release drawings associated with the PCAL Periscope Assembly and associated drawings
- Sept. 28, 2012 Description of changes to Pcal Periscope drawings by Craig Conley and Rick Savage
D1200726-V6
Change diameters of cutouts in for camera views from R=3.94 to R= 3.5 (2 places)
Move cutout for upper camera view to be centered on A1 adapter nozzle (48 deg. from vertical on 30" diameter circle. Was at (22.5, 19.936), now at (22.294, 20.074)
Move 2" dia. hole and three associated helicoils from 1.220 to 1.250.
Move helicoil marked "E" from (1.220, 30.724) to (1.250, 30.775)
Detail C: Change 16.000 dimension to 16.500; change 1.505 dimension to 17.505; change 1.225 dimension to 1.220.
Detail D: change 28.550 dimension to 28.500.
Change reference dimension on detail D from 28.550 to 28.500.
D1200727-V7
Change diameters of cutouts in for camera views from R=3.94 to R= 3.5 (2 places)
Move cutout for upper camera view to be centered on A1 adapter nozzle (48 deg. from vertical on 30" diameter circle. Was at (22.5, 19.94), now at (22.294, 20.074)
Move cutout for lower camera view to be centered on A1 adapter nozzle. Was at (5.72, 29.47), now at (5.718, 29.450)
U2 mirror heli-coil: (18.457, 1.220) -> (18.422, 1.250)
L2 mirror heli-coil: (31.618, 7.685) -> (31.657, 7.694)
L3 mirror heli-coil: (18.547, 7.569) -> (18.422, 7.537)
L4 mirror heli-coil: (32.413, 6.400) -> (32.479, 6.426)
Detail E: rotated 3 hole pattern to 8.52 deg. from 8.43 deg. X,Y coordinates of holes change slightly.
Added 2 ea. 1/4"-20 heli-coils for alignment of upper beam. Changed "coded F" call out from 6x to 8x.
Detail G: Changed hole call-outs so there are four "E" holes. This had been done on the .pdf file in the DCC (v6), but not on the drawing that had been checked in (v5). The drawing was last checked in on Sept. 10, the model last updated and checked in on Sept. 24.
Changed all 3/8" dowel pin close slip fits to "0.3755 -0.000, +0.001 (some were changed on Rev. 6, but not on the version that was checked into the vault (Rev. 5).
D1200993-V7
Just added a new revision with updated views. A trained eye can recognize slight differences.
Description of changes - September 23, 2012 - Shankle
D1200993: V6 Revised to reflect changes to the associated parts.
D1200993: Updated parts list to correct camera plate / mirror plate quantities.
D1102354: V5 Changed bolt pattern, 2 places at View "A-A".
d1202354: Updated the parts list to reflect the change in Heli-Coil hdw.
D1200726: V5 Changed bolt pattern 4 places at Detail "F".
D1200727: V6 Changed bolt pattern 4 places at Detail "G".
Description of changes - September 03, 2012 - Shankle
D1102354: V2-V4 (Simplified part by eliminating features).
Eliminated bolt pattern (.313 thru holes) top and bottom of the ring.
Eliminated 1.500 hole at the center of the ring.
Changed the holes of bolt pattern shown in View "A-A". (2 places).
Changed the angle of bolt pattern shown in View "A-A" from 40degrees to 37degrees. (2 places).
Changed tooling holes to dia .3755 +/-.001.
Added qty of (2) 1/2-13 Heli-Coils to Parts list.
D1200726: V3-V4 (All changes are documented on sheet 4of4).
Added 1/4-20 threaded and .375 diameter holes to accommodate targets, alignment flags, mirror hold-downs, skids, and manipulator mounting apparatus.
Added two notches, top and bottom of plate for leveler clearances.
Changed tooling holes to dia .3755 +/-.001.
D1200727: V3-V4 (All changes are documented on sheet 4of4).
Added 1/4-20 threaded and .375 diameter holes to accommodate targets, alignment flags, mirror hold-downs, skids, and manipulator mounting apparatus.
Added two notches, top and bottom of plate for leveler clearances.
Changed tooling holes to dia .3755 +/-.001.
Changed thickness callout typo from .38 +/-.02 to .400 +/- .040
D1200731: V2-V3 (Drastically simplified part)
Changed the the part and it's function from tying the two ring halves together to support block which carries leveler devices.
D1200993: V3-V4 (Updated assembly drawing)
Notes - August 21, 2012 - Shankle
Design changes were instituted during RFQ process
Changes made to accommodate installation fixtures, mirror alignment tools, and cost down efforts.
Drawings effected:
D1102354 - PCAL SUSPENSION RING RECEIVE SIDE
D1200726 - PCAL PLATE CAMERA MOUNTING
D1200727 - PCAL PLATE MIRROR MOUNTING
D1200731 - PCAL PLATE, RING CONNECTOR
Notes - 20 July, 2012:
1) QAME and SYS discussed review and approval for quotes.
2) Scott Shankle, Jeff Lewis, Calum Torrie will sign-off for quotation approval only.
3) These signatures and this DCN to release the following revision of the drawings is for quote only.
4) The following v2 releases for each drawing is for Initial Release for quote only. Previous releases were for internal use only.
DCC Version 3.4.2, contact
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