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London designer uses 3D printing to produce air-filtering bicycle wheel

London designer uses 3D printing to produce air-filtering bicycle wheel 2020-10-05Leave a comment

London designer makes use of 3D printing to provide air-filtering bicycle wheel

Kristen Tapping, an industrial design graduate from London South Bank University, is utilizing 3D printing to provide a bicycle wheel able to purifying air of pollution.

The novel invention is named Rolloe Roll Off Emissions, and makes use of a collection of sponges and filters to entice dangerous emissions earlier than releasing clear air again into the setting. Tapping claims the thought was impressed by the notoriously polluted streets of London – the Large Smoke – and believes the Rolloe will present a brand new technique of fresh commuting for the bustling bike owner group.

Rolloe Roll Off Emissions. Photo via Kristen Tapping.
Rolloe Roll Off Emissions. Photograph by way of Kristen Tapping.

City air air pollution

The air air pollution generally discovered in lots of main cities is essentially human inflicted, and has turn into a subject of significant concern lately. Not solely is it linked with respiratory issues and shorter life spans, air air pollution additionally has main implications for world warming and the next results on delicately balanced ecosystems.

To fight this, many people have adopted cleaner strategies of day by day transport corresponding to electrical automobiles and bicycles. The bikes specifically are nice for health-conscious people as they will additionally present the advisable degree of day by day cardio just by using to work and again.

In accordance with the European Cyclists’ Federation, the typical bike is accountable for emitting simply 21g of CO2 for each kilometer traveled. This consists of 5g for the manufacturing course of and upkeep, and 16g for the energy burned by the biker peddling. Wanting on the similar determine for a motorcar: 271g of CO2 per passenger per kilometer, or 13x the emissions.

The Rolloe wheel with simulated airflow. Image via Kristen Tapping.
The Rolloe wheel with simulated airflow. Picture by way of Kristen Tapping.

Rolloe Roll Off Emissions

The Rolloe wheel measures 600 x 600 x 60mm, and weighs about 1050g in complete. Designed to suit on the entrance of an ordinary bike body, it includes two rims with fins fabricated from ABS, and a central tri-wheel fabricated from nylon – all of which might both be 3D printed or injection molded. The meeting works by funneling air by means of the inside cylindrical opening of the rim the place three several types of filters are housed, earlier than expelling the purified air by way of the outside fins. It does this at a fee of 0.665m³ per kilometer.

The primary filter, an eco-friendly loofa sponge, traps giant particles and is washable for reuse. Subsequent, the HEPA filter (additionally washable) traps pollen and a few bigger particles corresponding to tyre and brake mud. The ultimate hurdle is the activated carbon filter, which is able to trapping particular person fuel molecules. This makes it nice for filtering out unstable natural compounds (VOCs) and even odors. Because it stands, the present prototype of the Rolloe requires these filters to be modified as soon as every week, or each 250km, to keep up its efficacy.

With the design finalized, Tapping finally intends to convey the product to market and predicts {that a} 10% market penetration in London alone may filter about 266,865m³ of air in a given day. The designer would additionally wish to develop a rear wheel counterpart to double this quantity, one that may be 3D printed in weatherproof and sustainable supplies.

The Rolloe assembly made of ABS and nylon. Image via Kristen Tapping.
The Rolloe meeting fabricated from ABS and nylon. Picture by way of Kristen Tapping.

The 3D printing of bicycle parts is not any new enterprise, and has resulted in an a variety of benefits for each producers and customers. Simply final month, engineering agency Sandvik collaborated with e-bike design consultancy GSD International to 3D print titanium motor nodes for e-bikes. GSD, working with a number of bike OEMs, has discovered titanium elements corresponding to motor nodes, which anchor the electrical motor to the bike body, could be tough and expensive to fabricate utilizing conventional CNC strategies. With an altered DfAM-centric design, nevertheless, these manufacturing prices could be halved.

Elsewhere, composite 3D printing specialist AREVO lately partnered with California-based Superstrata to 3D print the fully-unified carbon composite frames for its e-bikes. Utilizing Arevo’s steady carbon fiber 3D printing expertise, Superstrata was capable of eradicate the necessity for glues or welding to carry its particular person parts collectively whereas additionally producing a light-weight, sturdy body.

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Featured picture exhibits Rolloe Roll Off Emissions. Photograph by way of Kristen Tapping.

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