Customizable musical rasp / guiro [generator]
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Add a rhythm section to your tracks! This updated parametric generator allows you to create a modern, sleek musical rasp (guiro). The math behind the ridges has been completely fixed so they generate perfectly on top of the base. By building them additively, they are incredibly strong and will never snap off when playing. The base is thin and comfortable, and you can push the quality slider to the maximum for silky smooth rounded corners. Grab a wooden skewer or a printed stick and drag it across the ridges to create that classic percussion scraping sound.
Behind the Design: fully parametric OpenSCAD tool. The algorithm calculates complex 3D geometry to additively generate acoustic ridges (round, trapezoid, or triangle profiles) atop a dynamic base plate.
What can you customize?
- Dimensions: total length, width, thickness.
- Ridge style: round, trapezoid, or triangle.
- Quality slider up to 300.
- Spacing & depth.
Print settings:
- No supports required; print flat on its back, ridges facing up.
- Material: PLA, PETG, or ABS/ASA.
- Infill: 15-20%; Walls: 2+.
You are prohibited from sharing, sub-licensing, selling, renting, hosting, transferring, or distributing the digital file or 3D printed versions of this object, as well as any other derivative work in either digital or physical form (including remixes).You are not allowed to use the objects in any manner that involves charging money or collecting fees without permission.
