FROM LAST WEEK
----------------------------

attiny15l:
  calibration bit must be set manually.

jumping values:  
  adc clock is not synchronized with processor clock
  but most importantly our 60hz universe is messying things up
  solution: 
    charge, then rightaway discharge and process. 
    the charge is gonna be faster than the discharge when going down the wave
    the charge is gonna be slower than the discharge when going up the wave
    ......or... do a lowpass filter operation (software or hardware)





MACHINING
----------------------------

DOs & DONTs:
  Don't reach towards a tool
  Don't push towards a tool
  Don't machine alone
  Do know how to stop the machine






NC MILL
----------------------------

use N-mills

the mill should turn in the oposite direction it's translating

use featureCAM to communicate

T1 = 0.0625"
T2 = 0.125"
T3 = 0.25"




LATHE
----------------------------

use carbide inserts




FEATURECAM
----------------------------

new > ... > milling setup > ... > aluminum stock...

file > import > dxf

optional..change model lines to curves

if 2D dxf: features > set properties......

if 3D dxf: surfaces > surface milling.....

toolpath

simulation to view and write the g code....




INJECTION MOLDING
----------------------------

http://www.media.mit.edu/physics/pedagogy/fab/mold/

max piece size: 2" X 4" X 0.25"


-> CHECKOUT -> OREILLY -> "MAKE" magazine