The e-Vap® Crucible Indexer is a micro stepper controlled motor drive
unit used to position and rotate a multi-hearth electron beam source.
The crucible indexer will rotate and position up to eight pocket positions,
additional eight preprogrammed configurations can be selected via dip
switch settings at the back of the controller. These include: 4 pocket, 6
pocket, 2 pocket, 180° Banana, 3 pocket 90° Banana, 3 pocket 120°
Banana, 3 pocket 135° Banana, 3 pocket 145° Banana, or Continuous 360°
rotation. An additional dip switch lets the user select the following
modes: Bi-Direction (shortest path between pockets), Counter Clockwise Rotation, UHV Source Type, High
Speed Range, BCD I/O, and Enable Ethernet communications. In addition the indexer can be
user configured for any pocket / banana crucible layout. The Indexer also
eliminates mechanical adjustment of the home or 1st pocket location,
the "home" position can be defined electronically.