Ramp

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Geography

Allium tricoccum

Allium tricoccum (commonly known as ramp, ramps, spring onion, ramson, wild leek, wood leek, and wild garlic) is a North American species of wild onion widespread across eastern Canada and the eastern United States. Many of these English names are used for other Allium species, particularly Allium ursinum.

Description

Allium tricoccum is a bulb-forming perennial with broad, smooth, light green leaves, often with deep purple or burgundy tints on the lower stems, and a scallion-like stalk and bulb. Both the white lower leaf stalks and the broad green leaves are edible. The flower stalk appears after the leaves have died back, unlike the similar Allium ursinum, in which leaves and flowers can be seen at the same time. Ramps grow in close groups strongly rooted just beneath the surface of the soil.

Taxonomy

Allium tricoccum was first named in 1789 by the Scottish botanist William Aiton, in Hortus Kewensis, a catalog of plants cultivated in London's Kew botanic garden. The species had been introduced to Britain in 1770. The specific epithet tricoccum refers to the possession of three seeds.

RepRap project

The RepRap project started as a British initiative to develop a 3D printer that can print most of its own components and be a low-cost 3D printer, but it is now made up of hundreds of collaborators world wide. RepRap (short for replicating rapid prototyper) uses an additive manufacturing technique called fused filament fabrication (FFF) to lay down material in layers; a plastic filament or metal wire is unwound from a coil and supplies material to produce a part. The project calls it Fused Filament Fabrication (FFF) to avoid trademark issues with the "fused deposition modeling" term.

As an open design, all of the designs produced by the project are released under a free software license, the GNU General Public License.

Due to the self-replicating ability of the machine, authors envision the possibility to cheaply distribute RepRap units to people and communities, enabling them to create (or download from the Internet) complex products without the need for expensive industrial infrastructure (distributed manufacturing) including scientific equipment. They intend for the RepRap to demonstrate evolution in this process as well as for it to increase in number exponentially. A preliminary study has already shown that using RepRaps to print common products results in economic savings, which justifies the investment in a RepRap.