I should have these boards by the end of this week from China.
$13 for Arduino Due board
$14 for Motor Shield
$3 for heat sinks attach with rubber bands, dental floss or other mechanical means since the self adhesive pads are not sticky enough.
No substituions/additions or subtractions.
Photo shows the motor shield only, not the arudino DUE or the heat sinks.
$9.50 to cover shipping and handling IN USA, Foreign orders will cost more.
I bought these for my personal use and I am selling the extra at COST, not for a profit.
All sales are final, No Returns.
if interested send me your email address and shipping address.
These boards will let your machine run faster, especially when doing complex curves.
See this thread for details: