I wasn't a fan of other Parametric Hinges, so I developed one that met my needs. I tried to keep it SIMPLE so that others can easily create with it. The SCAD design can be accessed through the “Customize” button.  

Version 1.1 Updates: 

• Beefed up the Locking Pin to make it larger and stronger
• Reduced default setting of knuckle gap to 0.2mm for optimal hinge settings

Purposes:

• Add a hinge to your project, remix or 3D Design
• Print a hinge for your own use

Main Customizable Features:

• Leaf Length
• Leaf Width
• Leaf Thickness
• Knuckles (3, 5, 7)
• Screw Holes Radius (1-5mm)
• Screw Hole Count (0-7)
• Countersinks
• Rounded Edges (0-20mm)
• Locking Pin (on/off)
• Print Orientation

Why choose this over other parametric hinges?

• Easier to customize
• Locking Pin
• Option for no screw holes
• Leaf thickness associated to knuckle radius which means that strength scales with size.
• Minimized knuckle gap to provide hinge “slippage”

I used this to develop a multiboard hinge. I would love to see other's designs as well and will post my favourites here. 

This is my first SCAD design, so I'm open to suggestions for improvement :)