Brackets and mounts
3-String Bass Tagelharpa
- Bounding box
- 208.7 × 876.2 × 81.0 mm
- Engine
- Precision B-rep
- Parameters
- 40
- Published
- August 7, 2026
Download
Free to download and use. See the terms.
The prompt
CNC CAD Specification: 3-String Bass Tagelharpa Manufacturing Overview Process: 3-Axis CNC Router (cut from top/front face of timber stock). Components to Model: 4 distinct solid bodies (Body Shell, Soundboard, Bridge, Tailpiece). Tooling Constraint: All inside corners must have a minimum radius of 6.35 mm (1/4" bit) or 3.175 mm (1/8" bit) so a standard endmill can actually cut them. 1. Component 1: Main Body Shell (One-Piece Hardwood Blank) Machined from a single block of wood (e.g., Cherry or Maple) hollowed out from the front. Outer Silhouette: Top Section (Headstock): Flat top edge with a solid open window frame below it. Window Arms: Two vertical side pillars forming a rectangular playing opening. Lower Body: Straight sides tapering inward at the bottom corners, ending in a flat bottom base. Internal Cavity (Pockethole): Side Walls: Uniform 7 mm thickness along the left and right sides. Tail Block: Solid 18 mm thick wood section at the bottom base (needed to anchor the tailpiece). Depth: Pocket routed out from the front face, leaving a solid back plate attached to the walls. Soundboard Ledge (Rebate): A 3.0 mm deep x 4.0 mm wide step-route along the inside perimeter edge where the soundboard drops in flush. Headstock Details: 3x drilled pass-through holes on the top bar for sealed bass guitar tuner pegs. Integrated nut slot or ledge just below the top window bar to seat the nut. 2. Component 2: Soundboard / Top Plate Machined or laser-cut from a flat 3.0 mm sheet (Spruce or Cedar). Outer Shape: Identical to the outer lower body contour so it drops directly into the body shell's step-route. Soundhole Cutouts: Two mirrored stylized bow/sword cutouts (as shown in the reference photo, NOT standard round holes) placed symmetrically on either side of the bridge area. Bass Bar (Underside): A single straight wooden strip (8 mm wide x 10 mm high) glued lengthwise along the underside, positioned directly beneath where the middle/bass string foot sits. 3. Component 3: Bridge Machined from quarter-sawn Maple. Type: Floating bridge (held down by string tension alone, not glued). Base: Two wide, flat feet that rest on the soundboard. Top Arc: Curved top profile with 3 shallow string-guide notches spaced 22.7 mm apart. Profile: Low overall height with cutouts in the center to reduce mass while maintaining rigidity under heavy cello string tension. 4. Component 4: Tailpiece Machined from a small hardwood block. Shape: Tapered shield/paddled shape (wider at the top where strings attach, narrower at the bottom). Mounting Holes: 3x top holes/notches for string ends. 2x bottom pass-through holes for the paracord loop that anchors to the bottom of the body.
Parameters
| Name | Value | Range |
|---|---|---|
| Overall Length | 876 mm | 600 – 1200 |
| Lower Body Width | 208.5 mm | 150 – 300 |
| Body Depth | 69 mm | 40 – 100 |
| Playing Window Length | 293 mm | 150 – 400 |
| Window Width | 108 mm | 60 – 200 |
| Headstock Width | 158 mm | 100 – 200 |
| Headstock Height | 80 mm | 50 – 150 |
| Bottom Taper Width | 120 mm | 80 – 200 |
| Arm Chamfer | 2 mm | 0.5 – 5 |
| Wall Thickness | 7 mm | 4 – 15 |
| Tail Block Thickness | 18 mm | 10 – 30 |
| Internal Fillet Radius | 6.35 mm | 3 – 12 |
| Soundboard Thickness | 3 mm | 2 – 5 |
| Soundhole Blade Length | 80 mm | 40 – 150 |
| Soundhole Blade Width | 30 mm | 10 – 60 |
| Soundhole Guard Width | 40 mm | 20 – 70 |
| Soundhole Guard Offset | 5 mm | 0 – 20 |
| Soundhole Y Position | 200 mm | 100 – 400 |
| Bass Bar Width | 8 mm | 4 – 12 |
| Bass Bar Height | 10 mm | 5 – 15 |
| Bass Bar Offset X | 0 mm | -50 – 50 |
| Bass Bar Length | 300 mm | 150 – 500 |
| Bridge Width | 69.5 mm | 40 – 100 |
| Bridge Length | 30 mm | 15 – 50 |
| Bridge Height | 12 mm | 6 – 25 |
| Bridge Top Fillet | 2 mm | 0.5 – 4 |
| Scale Length | 546 mm | 400 – 700 |
| Tailpiece Length | 100 mm | 60 – 200 |
| Tailpiece Top Width | 40 mm | 20 – 70 |
| Tailpiece Bottom Width | 30 mm | 15 – 60 |
| Tailpiece Thickness | 8 mm | 4 – 15 |
| Tailpiece Hole Diameter | 4.5 mm | 2 – 8 |
| String Spacing | 22.7 mm | 15 – 30 |
| Tailpiece Y Position | 25 mm | 10 – 80 |
| Nut Slot Depth | 4 mm | 2 – 10 |
| Nut Slot Height | 10 mm | 5 – 20 |
| Tuner Hole Diameter | 10 mm | 6 – 14 |
| Tuner Peg Spacing | 36 mm | 25 – 50 |
| Headstock Hole Y Offset | 0 mm | -40 – 40 |
| Layout Gap (unused) | 0 mm | 0 – 100 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
More models
Browse the full gallery →Trumpet Lyre Mount Main Body
A single 3D mechanical CAD part for a trumpet music lyre mount (Main Body with Paddle). Geometry details: 1. A 18mm-wide semi-cylindrical clamp arc for a 28mm diameter cylinder, w
UAV Ogive Nose Cone
Design a watertight, 3D-printable aerodynamic nose cone module for a fixed-wing tactical UAV, optimized for printing in Carbon Fiber Filled PETG (PETG-CF). The base of the nose con
Flat-Strap Reel Spool
Create a 3D model of a custom flat-strap reel spool for a home plate housing cavity. Geometry: - A reel spool consisting of two parallel circular outer flanges connected by a cent