FSRs (Force Sensing Resistors) can be used as bed leveling sensors with Smoothieboard to provide automatic bed leveling for 3D printers.
To use FSRs with the Smoothieboard, an auxiliary board is needed to interface the FSRs to the Smoothieboard’s endstop input.
Smoothieware will accept this input as if it were a simple mechanical switch.
JohnSL on GitHub has created an FSR controller board specifically for this purpose.
Where to buy:
Resources:
For Cartesian machines with square heat beds, there is a 4-point FSR controller called “Toucher”.
Resources:
The Deltabot group is where most discussion on using FSRs is located.
Topics to look for:
For more information about bed leveling and probing, see: