# Align to Base

Align to Base: Alignment applications where the part is held to the motion device(such as stage table). During alignment, the application computes motion device parameters that move the run-time part so that it has the same pose as the train-time part. An example of an AlignToBase system is a machine that aligns the cover glass of a phone to a desired orientation for screen printing, where the cover glass rests on a UVW stage.

## Train time

Golden pose is trained and saved.

## Run time

1. Initial status: Part is placed and attached at a random position on motion device

2. After alignment: motion device moves to new pose which brings the run time part back to desired pose trained during setup.

   Note: Note that after alignment motion's position might be different with its train time position, but as long as the part itself moves back to its golden pose, then the alignment is finished perfectly.