Brackets and mounts
Six-Source Precision Liquid Dispenser Assembly
- Bounding box
- 1225.0 × 286.0 × 150.0 mm
- Engine
- Precision B-rep
- Parameters
- 47
- Published
- August 9, 2026
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The prompt
Create a parametric CAD assembly for Prototype 2B, a six-source precision liquid dispenser. Core architecture: 6 fixed removable 15 mL liquid pods arranged in a semicircle each pod has one short dedicated 3 mm ID × 5 mm OD tube all 6 tubes connect to one central 6-port rotary selector valve selector valve is driven by Stepper Motor 1 (NEMA 17) selector chooses only one pod at a time selector common outlet connects to ONE precision syringe pump syringe pump uses a fixed 5 mL syringe syringe barrel stays fixed syringe plunger is moved by a carriage on two guide rods Stepper Motor 2 (NEMA 17) rotates a T8 lead screw that moves the carriage forward/backward retracting plunger aspirates liquid; advancing plunger dispenses liquid syringe output uses one short tube to one fixed downward nozzle nozzle dispenses into one fixed 15 mL receiving bottle receiving bottle sits on a 1 kg load-cell platform include an ESP32 electronics enclosure, 2 stepper drivers, HX711, power distribution, and 12V-to-5V converter Base approximately 360 × 280 × 12 mm. Pods should look like user-friendly rigid cartridges, but leave room internally for a future collapsible liquid pouch. Keep tubing very short. No long loops. Add a Hall-sensor/home-magnet provision for the rotary selector and limit-switch provisions for the syringe carriage. Add a simple service flush port on the shared selector/syringe path. Create all major parts separately and editable: pods, holders, six tubes, selector housing/rotor/shaft, selector stepper, syringe/barrel/plunger/carriage, lead screw, guide rods, syringe stepper, nozzle, bottle platform, load cell, electronics enclosure. Critical: there are only 2 stepper motors total and only 1 syringe pump. Do NOT create: six syringe pumps six peristaltic pumps rotating nozzle turret moving bottle exposed medical bags flow sensors touchscreen complicated cleaning system Fluid path must clearly be: 6 pods → 6-port selector → 1 syringe pump → 1 nozzle → receiving bottle on load cell. Prioritize mechanical realism, short fluid paths, accurate syringe motion, serviceability, and 3D-printable prototype parts.
Parameters
| Name | Value | Range |
|---|---|---|
| Layout Gap | 100 mm | 30 – 200 |
| Base Width | 360 mm | 200 – 500 |
| Base Depth | 280 mm | 150 – 400 |
| Base Thickness | 12 mm | 6 – 30 |
| Holder Width | 220 mm | 150 – 300 |
| Holder Depth | 160 mm | 100 – 200 |
| Holder Thickness | 15 mm | 10 – 25 |
| Pocket Diameter | 30.5 mm | 20 – 50 |
| Pocket Circle Radius | 75 mm | 50 – 100 |
| Pod Body Diameter | 30 mm | 15 – 40 |
| Pod Body Height | 75 mm | 40 – 100 |
| Outlet Nipple Length | 15 mm | 5 – 25 |
| Outlet Nipple Diameter | 5 mm | 3 – 8 |
| Tube Outer Diameter | 5 mm | 3 – 10 |
| Selector Housing Width | 50 mm | 30 – 80 |
| Selector Housing Depth | 40 mm | 30 – 80 |
| Selector Housing Height | 35 mm | 20 – 60 |
| Port Diameter | 4 mm | 2 – 8 |
| Rotor Diameter | 10 mm | 6 – 20 |
| Selector Stepper Size | 42 mm | 30 – 60 |
| Selector Stepper Height | 40 mm | 30 – 60 |
| Syringe Barrel Diameter | 15 mm | 8 – 30 |
| Syringe Barrel Length | 85 mm | 40 – 150 |
| Guide Rod Diameter | 8 mm | 4 – 12 |
| Lead Screw Diameter | 8 mm | 4 – 12 |
| Carriage Width | 30 mm | 15 – 50 |
| Carriage Depth | 30 mm | 15 – 50 |
| Carriage Height | 20 mm | 10 – 40 |
| Syringe Stepper Size | 42 mm | 30 – 60 |
| Syringe Stepper Height | 40 mm | 30 – 60 |
| Manifold Width | 25 mm | 10 – 40 |
| Manifold Depth | 20 mm | 10 – 40 |
| Manifold Height | 15 mm | 8 – 30 |
| Nozzle Length | 33 mm | 15 – 80 |
| Nozzle Outer Diameter | 6 mm | 3 – 12 |
| Connecting Tube OD | 5 mm | 3 – 8 |
| Load Cell Length | 80 mm | 50 – 120 |
| Load Cell Width | 20 mm | 10 – 30 |
| Load Cell Thickness | 10 mm | 5 – 15 |
| Bottle Diameter | 25 mm | 10 – 40 |
| Bottle Height | 45 mm | 20 – 80 |
| Flush Port Width | 20 mm | 10 – 30 |
| Flush Port Depth | 15 mm | 8 – 25 |
| Flush Port Height | 15 mm | 8 – 25 |
| Enclosure Width | 120 mm | 80 – 200 |
| Enclosure Depth | 80 mm | 50 – 120 |
| Enclosure Height | 50 mm | 30 – 80 |
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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