MilkRap (Milk Crate RepRap) by gmdownes
Assembly instructions: http://www.instructables.com/id/MilkRap-Milk-Crate-RepRap/?ALLSTEPS
Partial MilkRap self sourced BOM.
Black rectangular milk crate 24 quart $7 + $12 shipping https://www.milkcratesdirect.com
Minimalist direct drive extruder $0.0 http://www.thingiverse.com/thing:15718
Lm8uu linear ball bearings $5.25 for 10 http://www.ebay.com/itm/10pcs-LM8UU-8mm-Linear-Ball-Bearing-Bush-Bushing-FREE-SHIPPING-/121096649695?hash=item1c31ec3bdf&vxp=mtr
Mk7 drive gear $12.5 http://store.makerslide.com/index.php?main_page=product_info&products_id=95
Steel rods came from McMaster Carr online
PTFE tubes for Bowden extruder came from McMaster Carr or Grainger, I cant remember.
Glass plate for top of heat bed came from Lowes (I found you do not need to use borosilicate glass, soda lime window glass has worked just fine for me)
- MilkRap mentioned at http://diy3dprinting.blogspot.com/2013/09/milkrap-reprap-made-from-plastic-milk.html