Brackets and mounts
Test Tube Sensor Box (Base Tray + Lid)
- Bounding box
- 10 × 3.5 × 7 mm
- Engine
- 3D Printing B-rep
- Parameters
- 25
- Published
- October 29, 2026
Download
Free to download and use. See the terms.
The prompt
Create a parametric 3D-printable base tray and top lid for a test tube sensor box. Units: cm. X = length, Y = width, Z = height. Fitting clearance 0.1. Outer box 10 x 3.5 x 7, wall 0.2. Base tray: floor + 4 walls, open top. Top lid: separate part, with a round hole at X=5, Y=1.75, diameter 2.4. Inside the tray, directly below the hole, a tube support cup: recess diameter 2.4, 0.4 deep, top at Z=1.0 from the inner floor, with a smooth concave bowl-shaped bottom for a round test tube. Connect tray and lid with snap-fit clips and alignment pins. On the front long wall (10 x 7 face) cut two horizontal slots at Z=3.0, width 0.35, 3 cm long, and engrave scale marks 0, 1, 2, 3 with numbers beside each slot. Add two straight guide grooves along X in the inner floor and side walls for sliders, 3 cm travel.
Parameters
| Name | Value | Range |
|---|---|---|
| Outer length X (cm) | 10 mm | 4 – 20 |
| Outer width Y (cm) | 3.5 mm | 2 – 12 |
| Outer height Z (cm) | 7 mm | 3 – 20 |
| Wall / floor thickness (cm) | 0.2 mm | 0.1 – 0.6 |
| Sliding fit clearance (cm) | 0.1 mm | 0.05 – 0.3 |
| Lid plate thickness (cm) | 0.5 mm | 0.3 – 1.5 |
| Lid inner lip height (cm) | 0.5 mm | 0.3 – 1.5 |
| Tube hole diameter (cm) | 2.4 mm | 1 – 4 |
| Tube hole X (cm) | 5 mm | 0.5 – 9.5 |
| Tube hole Y (cm) | 1.75 mm | 0.5 – 3 |
| Cup height above floor (cm) | 1 mm | 0.4 – 3 |
| Cup recess diameter (cm) | 2.4 mm | 1 – 4 |
| Straight recess depth (cm) | 0.4 mm | 0.1 – 1.5 |
| Bowl sphere radius (cm) | 2.5 mm | 1.5 – 6 |
| Slot centre height (cm) | 3 mm | 0.5 – 6 |
| Slot height (cm) | 0.35 mm | 0.1 – 1 |
| Slot length (cm) | 3 mm | 1 – 8 |
| Engraving depth (cm) | 0.06 mm | 0.02 – 0.15 |
| Number height (cm) | 0.4 mm | 0.2 – 1 |
| Guide groove width (cm) | 0.15 mm | 0.08 – 0.4 |
| Guide groove depth (cm) | 0.1 mm | 0.05 – 0.2 |
| Guide groove travel (cm) | 3 mm | 1 – 8 |
| Floor groove offset from wall (cm) | 0.35 mm | 0.25 – 1.2 |
| Alignment pin diameter (cm) | 0.5 mm | 0.3 – 1 |
| Alignment pin X inset (cm) | 0.7 mm | 0.5 – 2 |
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
PET Recycling Kiosk Frame
Design a production-ready welded steel frame for an outdoor PET bottle recycling and animal feeding kiosk. Create ONLY the steel frame. Do not create covers, motors, tanks, electr
Kugoo G2 Pro Rear Swingarm for KuKirin G4
Create a detailed 1:1 CAD drawing of custom rear swingarms for the Kugoo G2 Pro 2020 electric scooter. The swingarms must be designed to fit a KuKirin G4 hub motor instead of the o
Humanoid Robot Exploded Assembly
Design a 3D CAD model of a fully autonomous humanoid biped robot for the Robofest AI HOMO BOT competition. Dimensions Height: 800 mm (80 cm) Maximum weight: 20 kg Lightweight modu