Colorado-based Japica is offering the J-Rev 3D printer on Kickstarter.  It is a Fused Filament Fabrication design, but the implementation is novel.  Instead of the z-axis being handled by raising and lowering the build platform, the print head's guide rails are raised or lowered via telescoping poles, referred to as, "Acme Telescopic Bolts."  This makes the entire unit only five inches tall when it isn't printing.

That's unusual, but what makes the J-Rev really different is the stated print resolution.  Japica says it is capable of a 20 micron layer height, a size roughly four times that of a healthy bacteria.  To demonstrate this, Japica provides a $10 pledge option with the reward being a piece of paper printed by the J-Rev, coated with a material that allows it to be used in an inkjet, cleaned, and then used again.  The price makes this a personal class printer, but the print resolution is more closely akin to stereolithography or expensive pro-class machines.

     Japica's J-Rev 3D Printer

Sticking to its Reprap roots, Japica plans to release parts as open source downloads after the Kickstarter project completes.  During early stage funding, backers are encouraged to provide opinions as to the electronics used to drive the printer (it will probably use the new Azteeg or RAMBO).  Quality and size upgrades are available, with pledges ranging from $1850 (first ten backers) for a standard J-Rev up to $6,000 for a custom-sized printer with the works.  The project's funding goal is $50,000.  The 3D Printer World staff is keeping a close eye on this one, as Japica plans to add more video and details to the Kickstarter page during the next week.

UPDATE:  Japica has pulled the plug on both the J-Rev Kickstarter project and apparently, the company itself.  The Japica web site now states they are no longer in business.  Video proof of the J-Rev running at its amazing declared performance specifications was requested and said to be forthcoming, but never materialized.  The community had concerns about the unusual design concept and clearly, the Photoshopped GIF animation of an Eiffel Tower being printed did nothing to assuage those fears.  At this point, it is uncertain as to whether or not the J-Rev was ever a fully functioning printer.