Rounded plate with two holes (parametric); Adjustable offset for print cooling systems

This is a simple plate of specified thickness with two holes of specified diameter at specified distance from each other.
Adjust as needed to use as spacer for the variety for fan ducts, e.g. for print cooling.

• For a mount to use with these, see: http://www.thingiverse.com/thing:464868
  May be used with:
• http://www.thingiverse.com/thing:462768
• http://www.thingiverse.com/thing:431506
• http://www.thingiverse.com/thing:351280
• http://www.thingiverse.com/thing:225126
• http://www.thingiverse.com/thing:73714
• http://www.thingiverse.com/thing:31213
• http://www.thingiverse.com/thing:30721
• and on and on...