well, worked on mendel last night and got the axies freed up but... now my z axis sprocket has wallowed out and will not stay tight on my stepper. gonna have to either print a new one or glue it to the shaft. oh well.
something that Im also working on right now is a positive displacement pump extruder. Its going to take a bit of machining but i have high hopes about getting this functional. For those that dont know what a pdp is its basicly a gear pump. take two gears and mesh them together inside a confined space with a inlet at one side of the pair and outlet at the other -->8-->. its how a oil pump in your car works, the oil or in this place plastic is moved around the outside with the gears and kept from returning to the inlet side by the meshing of the gears. Ill keep everyone posted on actual progress and when i have pictures ill post them.