The Y axis, or short axis, is
critical in producing cutting accuracy. It is important that the Y axis bearing
surfaces ride on precision surfaces, rather than steel tubing or a similar construction
grade material.
The Torchmate II Y axis uses a super-precision linear
motion cassette with eight 1" diameter needle bearing rollers riding on hardened and
ground rails. Load capacity is an
amazing 4,518 pounds. The carriage is fitted with replaceable felt wipers at both
ends. Hardened cap screws secure the rail assembly every 3" to the machine's
heavy extruded aluminum frame. It is possible for a man of normal weight to stand on
the roller cassette and have the machine carry him on both axes. |