====== Spacer ======
Company: Menlo Systemes

  * Material/Grade: 7972/Premium/Special
  * Diameter: 92 mm (Measured: **91.75mm - 91.77mm**)
  * Length: 485 mm

===== ULE Stabbearbeitung =====

Company: Siliciumbearbeitung Andrea Holm GmbH

  * Rundschleifen
    * DM 91,7 (+/-0,1) mm
  * Kernbohrung 
    * DM: 13 (+/-0,2) mm
  * Seitliche Bohrung 
    * DM: 4,2 (+/-0,2) mm


===== Notes vom Rohblock =====

Item is oversized cores to yield the above sizes
  * Finish: Waterjet or saw cut on all surfaces
  * Tolerances: +12 mm/-0 on all dimensions
  * Special CTE Selection: Crossover temperature >=28°C (in einer anderen mail, die ich fand stand: 28-35°C)

===== 2D drawings =====
  * {{ :groups:mg:project_ptb-cavity:resonatorkoerper_2.pdf |Resonatorkörper}}
  * {{ :groups:mg:project_ptb-cavity:spacer_mikko.pdf |spacer_mikko}}
  * {{ :groups:mg:project_ptb-cavity:spacer_mit_schutzkappen.pdf |Spacer mit Schutzkappen}}