Mechanical Design of a Spring-Loaded Diaphragm Pump (Fluid Displacement System) Ended

About the job

I am looking for a Mechanical Engineer or Product Designer to create a CAD model (SolidWorks/Fusion 360) and a Bill of Materials (BOM) for a purely mechanical, top-initiated liquid spray pump.

Project Overview: The goal is to create a sort of disinfecting spray station. The device consists of a 15 cm diameter cylindrical tank (approx. 10cm in ht) that sprays a soapy water solution upward when a "Floating Ring" actuator is depressed.

Design Specs & Requirements:

Actuation: A concentric "Floating Ring" design. The spray nozzle must remain fixed in the center while the ring moves downward around it to initiate the spray.

Containment: An outer wall should extend 5cm above the actuator plate to contain overspray/splash.

Pump Mechanism: A displacement pump (Piston or Diaphragm) using two one-way check valves (Inlet/Outlet).

Performance: Target spray height of 5-8 cm. I have calculated a required spring constant of approximately approx 600 N/m but I would like you to verify this based on your final pump chamber volume.

Materials: Must be designed for a "soapy water" environment (use of Stainless Steel 316, Silicone/EPDM, and 3D-printable resins/plastics).

Standard Parts: Prioritize the use of "Off-the-shelf" components for springs, O-rings, and check valves to simplify prototyping.

Deliverables:3D CAD Assembly: (STEP and native Fusion 360/SolidWorks files).
Exploded View: A simple PDF showing how the components assemble.
BOM (Bill of Materials): A lis... read more
I am looking for a Mechanical Engineer or Product Designer to create a CAD model (SolidWorks/Fusion 360) and a Bill of Materials (BOM) for a purely mechanical, top-initiated liquid spray pump.

Project Overview: The goal is to create a sort of disinfecting spray station. The device consists of a 15 cm diameter cylindrical tank (approx. 10cm in ht) that sprays a soapy water solution upward when a "Floating Ring" actuator is depressed.

Design Specs & Requirements:

Actuation: A concentric "Floating Ring" design. The spray nozzle must remain fixed in the center while the ring moves downward around it to initiate the spray.

Containment: An outer wall should extend 5cm above the actuator plate to contain overspray/splash.

Pump Mechanism: A displacement pump (Piston or Diaphragm) using two one-way check valves (Inlet/Outlet).

Performance: Target spray height of 5-8 cm. I have calculated a required spring constant of approximately approx 600 N/m but I would like you to verify this based on your final pump chamber volume.

Materials: Must be designed for a "soapy water" environment (use of Stainless Steel 316, Silicone/EPDM, and 3D-printable resins/plastics).

Standard Parts: Prioritize the use of "Off-the-shelf" components for springs, O-rings, and check valves to simplify prototyping.

Deliverables:3D CAD Assembly: (STEP and native Fusion 360/SolidWorks files).
Exploded View: A simple PDF showing how the components assemble.
BOM (Bill of Materials): A list of all off-the-shelf components with suggested part numbers.
DFM Advice: Brief notes on the best 3D printing method (SLA/MJF) to ensure the tank and pump housing are water-tight.
Preferred Qualifications: Experience in fluid dynamics or small-scale pump design. Knowledge of seals, gaskets, and chemical compatibility (surfactants).

Portfolio demonstrating "Design for Manufacturing" (DFM) for 3D printing or injection molding. read less
I am looking for a Mechanical Engineer or Product Designer to create a CAD model (SolidWorks/Fusion 360) and a Bill of Materials (BOM) for a purely mechanical, top-initiated liquid spray pump.

Project Overview: The goal is to create a sort of disinfecting spray station. The device consists of a 15 cm diameter cylindrical tank (approx. 10cm in ht) that sprays a soapy water solution upward when... read more
I am looking for a Mechanical Engineer or Product Designer to create a CAD model (SolidWorks/Fusion 360) and a Bill of Materials (BOM) for a purely mechanical, top-initiated liquid spray pump.

Project Overview: The goal is to create a sort of disinfecting spray station. The device consists of a 15 cm diameter cylindrical tank (approx. 10cm in ht) that sprays a soapy water solution upward when a "Floating Ring" actuator is depressed.

Design Specs & Requirements:

Actuation: A concentric "Floating Ring" design. The spray nozzle must remain fixed in the center while the ring moves downward around it to initiate the spray.

Containment: An outer wall should extend 5cm above the actuator plate to contain overspray/splash.

Pump Mechanism: A displacement pump (Piston or Diaphragm) using two one-way check valves (Inlet/Outlet).

Performance: Target spray height of 5-8 cm. I have calculated a required spring constant of approximately approx 600 N/m but I would like you to verify this based on your final pump chamber volume.

Materials: Must be designed for a "soapy water" environment (use of Stainless Steel 316, Silicone/EPDM, and 3D-printable resins/plastics).

Standard Parts: Prioritize the use of "Off-the-shelf" components for springs, O-rings, and check valves to simplify prototyping.

Deliverables:3D CAD Assembly: (STEP and native Fusion 360/SolidWorks files).
Exploded View: A simple PDF showing how the components assemble.
BOM (Bill of Materials): A list of all off-the-shelf components with suggested part numbers.
DFM Advice: Brief notes on the best 3D printing method (SLA/MJF) to ensure the tank and pump housing are water-tight.
Preferred Qualifications: Experience in fluid dynamics or small-scale pump design. Knowledge of seals, gaskets, and chemical compatibility (surfactants).

Portfolio demonstrating "Design for Manufacturing" (DFM) for 3D printing or injection molding. read less

Things to know

Job location

Remote

Work location

Job skill level

Entry

Skill Level

Job rate

$600

Fixed-rate (USD)

Job type

Part-time

Job type

Job length

Under 1-month

Job duration

Areas of expertise

3D Mechanical Design Bill of Materials (BOM) DFM / DFA

Job categories

3D Modeling

About the client

Payment ready

Spain (02:08 am)

Posted

Active

Job activity

46 Applicants

8 interviews in progress

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