====== mcmaster conversion notes ======

TODO
  * Estimate official post size
  * Get machinist quote

DONE
  * Gather pictures of reference systems
  * Get official quote from Logitech

Verified I can unscrew the posts from the base

When I showed sales rep pictures, was told I was recommended the following parts:
  * 1P5AC-1000: Vacuum chuck body and tube - to convert PP5D to PP5GT
  * 1P5AC-0600: Drive/conditioning ring assembly for PP5 Polishing Jig - grooved
  * 1P5AC-1200: Vacuum chuckface for PP5GT - annular grooves for 83mm diameter substrate
  * 1GAG-055: Bluetooth gauge with support clamp (jig serial number required)

Follow up:

1P5AC-1000: doesn't my unit already have this? What is the difference between this one and mine?
  * this is a different part that allows for vacuum connection and interfaces with the new chuckface.

1P5AC-0600: my driving/conditioning ring face is smooth, the recommend one is grooved. Does this provide a process improvement?
  * Yes. The grooved chuck face allows for the polishing slurry to better access the sample. A smooth drive ring creates a damming effect and starves the sample of slurry.

1P5AC-1200: Will this mount to my existing chuck face body?
  * No.

The post screws do in fact come out. I think they are just standard M6 optical posts (TODO: confirm). I don't need vacuum capabilities, where I think a lot of the complexity comes from.

Options:
  * Buy all parts and get running. This is a significant sum, with the lowest cost part about what I paid for both jigs combined
  * Jury rig something (ie an SBT chuckface) onto the assembly. Replace with shorter posts
  * Design parts and get machine shop quotes. Most parts would probably be pretty simple to make since I'd be okay with wax mounting

====== Units ======

===== mcmaster mechanical gauge =====

===== mcmaster electric gauge =====

[[https://www.ebay.com/itm/Logitech-Model-PP5D-Precision-Polishing-Jig-with-Dial-Indicator-/142644352801?_trksid=p2047675.l2557&ssPageName=STRK%3AMEBIDX%3AIT&nma=true&si=X6SVBKBUXcHuXCS8xYJ0LGXgf84%253D&orig_cvip=true&rt=nc|Source]]

{{:ebay:jbanas6:142644352801_pp5_e:0.jpg?400|}}
{{:ebay:jbanas6:142644352801_pp5_e:1.jpg?400|}}
{{:ebay:jbanas6:142644352801_pp5_e:2.jpg?400|}}
{{:ebay:jbanas6:142644352801_pp5_e:3.jpg?400|}}
{{:ebay:jbanas6:142644352801_pp5_e:4.jpg?400|}}

===== eBay corroded =====

[[https://www.ebay.com/itm/Logitech-Ring-Polishing-Head-with-Micrometer-Light-Rust/263455551315?hash=item3d572caf53:g:u6AAAOSwXMZaZ7yQ&autorefresh=true|Source]]

Appears to have a 1P5AC-1000 (ie PP5GT vacuum version)

{{:ebay:recycledgoods:263455551315_logitech_pp5:0.jpg?400|}}
{{:ebay:recycledgoods:263455551315_logitech_pp5:1.jpg?400|}}
{{:ebay:recycledgoods:263455551315_logitech_pp5:2.jpg?400|}}
{{:ebay:recycledgoods:263455551315_logitech_pp5:3.jpg?400|}}
{{:ebay:recycledgoods:263455551315_logitech_pp5:4.jpg?400|}}

===== eBay PP5GT NIB =====

[[https://www.ebay.com/itm/New-Logitech-PP5A-PP5D-PP5GT-LP50-Polishing-Jig-1PP52-1PP55GT-Chemlox/202180186822?hash=item2f12e0d2c6:m:m5umtO5qEwTIro63XIB_NaA&autorefresh=true|Source]]

{{:ebay:xenop:202180186822_pp5gt_nib:0.jpg?400|}}
{{:ebay:xenop:202180186822_pp5gt_nib:1.jpg?400|}}
{{:ebay:xenop:202180186822_pp5gt_nib:2.jpg?400|}}

===== eBay PP5GT w/ accessories =====

[[https://www.ebay.com/itm/Logitech-Polishing-Lapping-Programmable-Jig-PP51GT-with-all-accessories-as-new/323014248714?epid=20009174374&hash=item4b3526490a:g:wksAAOSwi0xaBcW5|Source]]

{{:ebay:geomin77:323014248714:0.jpg?400|}}
{{:ebay:geomin77:323014248714:1.jpg?400|}}
{{:ebay:geomin77:323014248714:2.jpg?400|}}
{{:ebay:geomin77:323014248714:3.jpg?400|}}
{{:ebay:geomin77:323014248714:4.jpg?400|}}

===== eBay PP5GT w/ hose =====

[[https://www.ebay.com/itm/Logitech-PP5-Jig-with-vacuum-chuck-unused-angular-adjustment-plate-and-misc-/112596274216?hash=item1a3742cc28%3Ag%3AI-YAAOSwuMZZEfmi&nma=true&si=X6SVBKBUXcHuXCS8xYJ0LGXgf84%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557|Source]]

{{:ebay:targettechnologycompany:112596274216_pp5_hose:0.jpg?400|}}
{{:ebay:targettechnologycompany:112596274216_pp5_hose:1.jpg?400|}}
{{:ebay:targettechnologycompany:112596274216_pp5_hose:2.jpg?400|}}
{{:ebay:targettechnologycompany:112596274216_pp5_hose:3.jpg?400|}}

====== References ======

References
  * Brochure: http://www.sun-way.com.tw/Files/DownloadFile/PP5.PDF
  * I was also able to contact a sales rep for a 60 page "Operation and Maintenance Manual: PP5 and PP6 Precision Polishing Jigs"