Brackets and mounts
Test Tube Tray
- Bounding box
- 100 × 35 × 67 mm
- Engine
- 3D Printing B-rep
- Parameters
- 27
- Published
- October 30, 2026
Download
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The prompt
Design ONE 3D-printable part: a rectangular open-top tray. Units mm. Single solid. Print orientation: floor down, open top up, no supports. Must fit on a 220x220 mm plate. - Outer size 100 (X) x 35 (Y) x 67 (Z). Wall 2 mm, floor 3 mm. - Central support cup at X=50, Y=17.5: cylinder pedestal 22 mm diameter rising from the floor to Z=18. On top, a concave spherical dimple (radius 11.8, depth 6) so a test tube with a ROUNDED bottom sits in it. - Two low guide rails on the floor, running along X, 4 mm wide x 2 mm high, centered at Y=9 and Y=26. Each rail runs X=2..38 and X=62..98 (nothing under the cup). - End wall at X=0: round hole 14 mm diameter at Y=17.5, Z=40. - End wall at X=100: slot 12 (Y) x 8 (Z) at Y=17.5, Z=40. - Clip grooves: on both long outer faces (Y=0 and Y=35), at X=20 and X=80 (4 grooves total), each 9 mm wide (X) x 1.5 mm tall (Z) x 0.8 mm deep, centered at Z=60.
Parameters
| Name | Value | Range |
|---|---|---|
| Outer width X | 100 mm | 20 – 220 |
| Outer depth Y | 35 mm | 10 – 220 |
| Outer height Z | 67 mm | 10 – 200 |
| Wall thickness | 2 mm | 1.2 – 6 |
| Floor thickness | 3 mm | 1.2 – 10 |
| Pedestal diameter | 22 mm | 5 – 40 |
| Pedestal top height | 18 mm | 5 – 60 |
| Dimple sphere radius | 11.8 mm | 5 – 20 |
| Dimple depth | 6 mm | 0.5 – 15 |
| Rail width Y | 4 mm | 1 – 10 |
| Rail height above floor | 2 mm | 0.5 – 8 |
| First rail Y center | 9 mm | 0 – 34 |
| Second rail Y center | 26 mm | 1 – 35 |
| Left rail start X | 2 mm | 0 – 100 |
| Left rail end X | 38 mm | 0 – 100 |
| Right rail start X | 62 mm | 0 – 100 |
| Right rail end X | 98 mm | 0 – 100 |
| Port center Z | 40 mm | 5 – 60 |
| Round side hole diameter | 14 mm | 3 – 30 |
| End slot Y width | 12 mm | 2 – 30 |
| End slot Z height | 8 mm | 2 – 30 |
| First groove X center | 20 mm | 0 – 100 |
| Second groove X center | 80 mm | 0 – 100 |
| Groove X width | 9 mm | 2 – 30 |
| Groove Z height | 1.5 mm | 0.6 – 5 |
| Groove depth | 0.8 mm | 0.2 – 2 |
| Groove center Z | 60 mm | 5 – 65 |
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.
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