Parametric watch strap and hardware

**Latest model (with a few improvements) is available over at MakerWorld:** https://makerworld.com/en/models/501544

Customizable watch strap including straps, buckle, latch, and retainer loops to fully replace any part of a standard watch strap (except the retaining spring bars that anchor it to the watch). Straps and loops should be printed in a flexible filament like TPU. Buckle is difficult to print smooth enough to not cause discomfort with FDM printer, so recommend using a pre-existing metal buckle if you can.

The following characteristics can be customized:
- Strap length, width, and thickness
- Hole diameter for spring bars
- Size, number, and spacing of holes
- 3 different buckle styles
- Optional border and/or extruded SVG pattern printed onto the strap faces (pattern requires using the OpenSCAD desktop application; example SVG included)


Additional Features:
- Cutouts in strap loops top accommodate spring bars with quick release pegs
- Support-free printing