2009:Mechanical 2.28.2009

Summary from 2-26-09

Set out to prove out the add on helix idea for the shaft rollers.  Used a PVC roller and set it up with 2 round belts with helix winds on both sides of the belts.  Used our wooden mock up with a std plucker pulley shaft on the bottom.  The concept worked great, it could feed balls up and feed them out the top.  We used a stationary piece of wood board for the rear section.  The helix sections would resote a belt that is pushed out of the desired tracking groove.  There is a short video that Cynette took and it is placed on the conveyer redesign comments link near the 2-16-09 work sheet day log.

Started fab on 1/2" diameter shaft lengths and 1 1/2" diameter tube lengths.  Also started cutting the nylon end plug bushings.  Gathered up 1/2" shaft collars in case we need them.  Goal would be to make 5 sets of these roller shafts.  Should also make a spare as well. 

Spent time recalculating belt lengths to reduce the bearing loads and motor torque.  Looking at 5 to 7% stretch.

Summary from Saturday 2-28-09

Still concerned about