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Design Competition: 2018 Professional Winners
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2018 International Aluminum Extrusion Design Competition

Professional Class Winning Entries

Grand Prize: "Retractable Glass Enclosures" by Micaela Morris, Roll-a-Cover International

Transportation Category: "Curvetrike" by Michael van der Bent

*Click on the thumbnail of each image to be taken to the larger, higher-resolution image*

Grand Prize - $3,500
Retractable Glass Enclosures
Micaela Morris, Roll-A-Cover International
Bethany, CT

Roll-A-Cover’s product designs give businesses (restaurants, hotels, bars, etc.) and homeowners (pools, hot tubs, swim spas, patios) the ability to utilize their outdoor spaces year-round, without concern for the weather. On beautiful days, the extruded aluminum system can be easily opened, either manually or motorized, to enjoy the sun.

Roll-A-Cover chose aluminum extrusion because it is “highly structural and lightweight compared to steel”. Aluminum extrusions also provide unique customization capabilities in product designs as well as ease of fabrication and assembly versus steel.

The aluminum sections are pre-assembled in the manufacturing plant and the extruded panels and wall sections are delivered to the installation site, allowing for ease of installation. The cost-effectiveness is significant because the installation crew is required to spend significantly less time in the field installing and greater time in the plant manufacturing. During installation, the enclosure sections are joined using 6061 or 7075 aluminum gussets, which makes the install process flawless because the system does not need to be assembled from scratch on site.

With aluminum extrusions, Roll-A-Cover is able to modify and customize each enclosure system to meet the needs of individual clients.


Judges’ Comments:

“This retractable glass enclosure system really shows off the many advantages of aluminum extrusion, not the least of which is the design flexibility to create a multitude of configurations for a variety of applications—both commercial and residential.”

“Aluminum extrusion’s light weight is a major advantage for this design. The product is pre-assembled in the plant and then delivered to the installation site. This allows for less labor on the job site and easier installation with fewer people compared to steel, translating to lower cost. Plus, because aluminum doesn’t rust there are reduced maintenance costs and the enclosures will look beautiful and last for a

long time, likely lowering the total cost of ownership versus steel when the costs of materials, shipping, and installation are considered.”


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Transportation Products - $2,000
Michael van der Bent
Schiedam, The Netherlands

The Curvetrike is an extreme curving tricycle for racing that uses curving motion to create a forward momentum. It can be used for downhill, off road and on a track.

The two axis of the handles are connected and underneath the user by a double-angled gear. The gearing ensures that one handle is tilted forwards and the other backward and vice versa.

An electric motor is charged in the curving motion and then stored in a battery inside of the main chassis made of extruded aluminum. Both back wheels have electro motors connected to the axis to provide propulsion.

The chassis is comprised of one extruded aluminum profile that provides structural stiffness and a closed storage location for the battery. A mounting groove on the profile provides flexibility in the ergonomic design so that it can be adapted to the user, creating an infinitely variable structure. For safety, the design includes chair side supports to ensure the driver remains seated during the curving motion.


Judges’ Comments:

“This design is an innovative adaptation of similar fully manually propelled trikes that captures the self-generated energy in a battery to be reclaimed via the electro motors to provide power assist on inclines.”

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