This thing serves as a guide for placing a lid onto a flat surface in a specific position. It's rounded at the top so the user can roughly position the lid and it will slide into place. The corner angle, guide properties, and screw properties are all configurable. It's fully parametric, well commented, and very quick to print.

The STL and default values are suitable for holding a lid with 90-degree interior angles in place using #6 wood screws with 82-degree countersink angles.

I use this as part of my parametric printer enclosure, which is available here: http://www.thingiverse.com/thing:39787

1. Edit the "User-defined values" values to meet your needs. Configure both the guide and screw properties if necessary.

2. Print an guide for each interior corner.

3. For perfect positioning, install with the lid in place if possible.