Vacuum-Assisted DIS Filter Holder

Date March 18, 2024

Designer Ahmad Jalil

Lab UNBC Northern Analytical Laboratory Services

Contact sparklab@unbc.ca

Objectives & Constraints

Objective: Develop a filter holder for a Disposable Inhalable Sampler (DIS) filter capsule, functioning like a Buchner funnel for vacuum-assisted filtration.
Constraints: Must withstand pressure without leaching into the sample. Must be chemically resistant and compatible with the existing vacuum setup.

Materials & Tools

Software: Autodesk Fusion 360, modified Bambu software
Materials: PLA filament for prototypes, Nylon Carbon Fiber filament, grey PETG filament for final product
Equipment: Bambu Lab X1-Carbon 3D printer, sanding tool

Phases of Development

I. Client Consultation

Met with the client to define the design criteria and dimensions of the DIS capsule using direct measurements.

II. CAD Modelling and Prototyping

Completed the system modelling in one week using 3D CAD, with iterative reviews.
Prototypes were printed in PLA and sanded to ensure filter compatibility.

III. Printing of Final Products

Produced 6 final models using a Bambu X1 Carbon printer with grey PETG filament, finished with sanding and super glue.

Skills Developed

Effective client consultation Mastery in 3D CAD tolerances Understanding of material properties and chemical resistance Adaptation to printer resolution limitations

Support & Resources

Graduate Student Mya Schouwenburg
Dr. Hossein Kazemian
UNBC Northern Analytical Laboratory Services

Product Images

CAD model of the DIS filter holder — CAD model of the filter holder

Client Feedback

The project exceeded our expectations with its precision and robustness. The final models integrate seamlessly into our existing systems, demonstrating outstanding design and engineering skills. The UNBC team's responsiveness and technical expertise were crucial in achieving such a successful outcome.
— Mya Schouwenburg