- RepRap Mega Pololu Shield, or RAMPS for short
- It is designed to fit the entire electronics needed for a RepRap in one small package for low cost.
-  RAMPS interfaces an Ard Mega with the powerful Ard MEGA platform and has plenty room for expansion.
- The modular design includes plug in stepper drivers and extruder control electronics on an Ard MEGA shield for easy service, part replacement, upgrade-ability and expansion.
- Additionally, a number of Ard expansion boards can be
to the system as long as the main RAMPS board is kept to the top of the stack.
-  Version 1.4 uses surface mount capacitors and resistors to further cover edge issue cases.