Brackets and mounts
Stackable Lab Tube Rack (3 Layers)
- Bounding box
- 85 × 85 × 120.5 mm
- Engine
- 3D Printing B-rep
- Parameters
- 12
- Published
- November 10, 2026
Download
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The prompt
I want to build a rack for Lab Tubes that will fit in a jar so that i can stack 3 of them on top of each other so maximaze the ammount of tubes i can have in the jar. The dimension of the jar is 90mm diameter, 125 mm heigh. I will have 3 layers of racks each round rack with a diameter if 85mm, thickness of 2mm and foods of 38mm giving them a total heigh of 40mm they have holes of 12mm diameter to insert the tubes (as many as possible to have it stable). In the middle they should have another hole with a diameter of 5mm
Parameters
| Name | Value | Range |
|---|---|---|
| Plate diameter | 85 mm | 50 – 90 |
| Plate thickness | 2 mm | 1.5 – 5 |
| Standoff height, layer pitch = leg_h + plate_t | 38 mm | 10 – 80 |
| Number of legs | 3 mm | 3 – 6 |
| Leg arc span | 24 deg | 8 – 60 |
| Leg radial width | 7 mm | 3 – 15 |
| Plate rim chamfer | 0.6 mm | 0.2 – 1.5 |
| Tube hole dia. = 12 mm tube + clearance | 12.4 mm | 10 – 16 |
| Hex grid pitch of the tube holes | 14 mm | 12.5 – 20 |
| Material between hole and plate edge | 2 mm | 1 – 6 |
| Central hole diameter | 5 mm | 3 – 10 |
| Overlap between stacked layers | 0.5 mm | 0 – 1 |
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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