David J. Irwin, a product and furniture designer based in Newcastle Upon Tyne (and who we featured here prior to London Design Week 2007), just sent us his latest project: The Aluminum Stacker. The three-legged aluminum chair provides a stable ground on uneven surfaces. To stack, the back leg simply slots through the perforated seat pan. Here, Irwin describes how it was made:

The main components of the chair (the back rest and seat ring) have been produced through the process of sand casting and are bonded to extruded flat sided oval tube, creating an extremely strong joint without the need for welding. The chair has been nylon coated in order to combat the wear on the back leg when stacking, as the process provides a much more durable and abrasion resistant finish than standard powder coatings. The nylon is a renewable resource, based on castor oil rather than petroleum and when applied provides a finish which is warm to the touch.

Though not as new, we love his equally as ingenious Timber Stackers, which rely on a bent and laminated form for its stacking power.