Having a tolerance parallelism problem with our VMX30Ui (Hurco 5 axis). For example, when we cut a 5 sided cube the X cuts will be .002 undersized. Called Hurco but they said they will not guarantee any results unless the machine is bolted to the floor.
Questions:
1. How important is it to bolt a VMC to the floor? I understand vibration issues but undersized cuts?
2. Have any of you experienced something similar?
Thanks in advance.
Some of the details from the test cuts we ran:
Having trouble holding tight tolerance parallelism with A-axis
Randomly lost x postion by .002”
Test parts:
1st test block (no indexing)
Part length and width undersize
Hole positions on ends were almost .002” too far in towards center on both left and right side holes
2nd test block (with indexing and then moved back to zero)
Part length and width undersize
Hole positions on ends were almost .002” too far in towards center on both left and right side holes
Counter bores above test holes concentricity became worse
3rd test block (hole position test)
Part overall length and width undersize
Tst holes got progressively worse from center to edge of part on one side, other side not as bad but did have some error
Questions:
1. How important is it to bolt a VMC to the floor? I understand vibration issues but undersized cuts?
2. Have any of you experienced something similar?
Thanks in advance.
Some of the details from the test cuts we ran:
Having trouble holding tight tolerance parallelism with A-axis
Randomly lost x postion by .002”
Test parts:
1st test block (no indexing)
Part length and width undersize
Hole positions on ends were almost .002” too far in towards center on both left and right side holes
2nd test block (with indexing and then moved back to zero)
Part length and width undersize
Hole positions on ends were almost .002” too far in towards center on both left and right side holes
Counter bores above test holes concentricity became worse
3rd test block (hole position test)
Part overall length and width undersize
Tst holes got progressively worse from center to edge of part on one side, other side not as bad but did have some error