Open-source cold and hot scientific sheet press for investigating polymer-based material properties

Area of Science:

• Materials Science
• Mechanical Engineering
• Polymer Science

Background:

• Material characterization requires standardized sample preparation.
• Existing hot presses can be expensive and specialized.
• Need for accessible, customizable sample production equipment.

Purpose of the Study:

• To design and detail an open-source, modular cold and hot press.
• To enable researchers to produce standardized material testing samples.
• To facilitate the creation of polymer and composite samples for property determination.

Main Methods:

• Developed a modular press with independent upper/lower plate assemblies (929 cm²).
• Integrated four 125 W insulated steel strip heaters per plate for controlled heating.
• Designed modular steel housing for ease of manufacture, assembly, and customization.
• Incorporated options for integration with hydraulic presses or standalone operation using a support frame and bottle jack.
• Utilized modular molds for producing flat sheet stock and solid test samples (ASTM D695, ASTM D638).

Main Results:

• Successfully designed a versatile hot and cold press system.
• Demonstrated the capability to produce samples for material property testing (compression and tension).
• Enabled the creation of stock sheets for 2.5-D applications.
• Modular design allows for customization and ease of assembly.

Conclusions:

• The open-source press design provides an accessible solution for material sample preparation.
• Researchers can produce critical polymer and composite material properties samples.
• The system supports both integrated and standalone operation for flexibility.