I Tech
PO Box 413, Veneta, OR 97487, USA

Appropriate Technology for Small and Subsistence Farms
Designs for making your own farm tools etc.
All I Tech designs are public domain, a gift to humanity.

 I Tech designs from 2005 to present.
 I Tech designs from 1989 to 2005 coming here, soon.  Previous location was   <plantsciences.ucdavis.edu/LTRAS/itech/>
   
Designs                                                                                                     Open .html Open .pdf
Skylight Insulation
3 ways to increase the insulation of skylights (57 kb, 6/2005)		     .html     .pdf
Farm Scale Winnower
make a seed cleaner that uses air flow to separate seeds from chaff  (209 kb, 12/2005)		     .html     .pdf
Flex-tine Cultivator
convert a spike tooth harrow to a tine cultivator, mechanical weeder (313 kb, 1/2007)		     .html     .pdf
Mouse guard
a non climb barrier strip against mice using oil coated aluminum foil tape (89 kb, 3/2007b)		     .html     .pdf
Solar tunnel food dryer
4 ft x 8 to 16 ft  solar food dryer, adapted from the Hohenheim solar tunnel food dryer design.  Includes notes on optimizing the dryer using the Penman-Monteith evapotranspiration equation, revised (3/2009, 560 kb) with simplified supplemental notes and corrected wind speed error.  Added introduction, 08/2008; original verion 3/2008. 		    .html     .pdf
Three solutions to the tight credit market in US
Option 1. Create a banking system for federal, state and local government.  Option 2. Reform the Federal Reserve System using Stephen Zarlenga's plan.  Option 3. A hybrid between option 1 and 2.   (18 kb, 2/2009)		    .html    .pdf
Conversion of a leaf shredder/wood chipper to a grain thresher
Plans for making a grain thresher suitable for amaranth, bean,oat, quinoa, rice, wheat etc., version 9/2009 (140 kb) added an alternative to rpm adjustments; original version 8/1994.  		 .html .pdf
Growing organic black beans in Veneta, Oregon (western Oregon, 17 miles west of Eugene, southern Willamette Valley)  Planting dates, fertilizer, weed cultivations, harvest and drying beans (295 kb, 10/2009b)
  .html   .pdf