KR33 CNC 2.0 Details

This machine is not yet complete – January, 2016

Structure:
All aluminum extrusion is 80/20 2″ x 2″ series 10, purchased via the 80/20 store on Ebay.
The aluminum alloy is 6061-T6
Uprights are 18 inches tall, 6 inches wide and 1/4 inch thick.
The upright braces are Series 15 Bearing Profile
The table is made from 16″ x 16″ x 1/2″ MIC-6 cast aluminum plate with a 15″ x 15″ 1/4-20 hold down pattern, 1 inch spacing.

Table is spaced up from the actuator with precision ground 0.30 spacers for motor clearance.

Linear Motion:
Y axis is a THK KR33 linear actuator with double long blocks and cover.
X axis is a THK KR33 linear actuator with double long blocks.
Z axis is a THK KR33 linear actuator with double long blocks.

THK KR33 linear actuators are an industrial product that combines a linear motion rail system with a ballscrew and motor mount.  This creates a single axis linear motion system that provides smooth motion with extremely high precision and a repeatability.

Electronics:
NEMA 23 DC ClearPath Servo motors with internal controllers from Teknic (1/4 inch shaft model)
Parallel breakout board model C10 is used to connect the PC to the servos
Power supply for servos is a 120vac Sola that puts out 48vdc at 12 amps
Spindle choice has not been decided

Miscellaneous Information:
Machine Travel – TBD
Flexible air hose is by Loc-Line