Move Machine to inside soft limits when Probe Basic on

Hi,
So I am trying to move the machine to inside the Soft Limits as when I put the mill/cnc back together the limit switch limits have been breached. I have tried to switch off limits, however, what is the easiest approach to put the X, Y and Z in mid point so I can complete a homing process.

What is the process to move the X, Y and Z axis back to mid point, when the machine says cant because limits activated?

In addition, how do I make sure that the correct positions, X, Y and Z are Min and Max.

Are the following correct?
Left X = Min, Right X = Max
Front Y = Min, Rear Y = Max
Top Z = Max
Bottom Z = Min

Thanks.

on the sidebar WCS tab there is a button called LIMITS OVERRIDE. this will only be active if a limit is currently triggered.

for your min/max soft limits, this is set in the ini file. min is to the negative direction max is to the positive direction. these directions are relative to the spindles direction of travel through the work and the layout of an XYZ cartesian coordinate system. in other words if it is a moving head type configuration (gantry type machine with fixed table) the X+ is to the right and Y+ is to toward the back and Z+ is up.

if it is a moving table such as a VMC, X+ is table motion to the left (making spindle motion through the work in X+ dynamically to the right), and Y+ table motion to the front making spindle motion dynamically towards the back. and Z+ remains the same moving in the upward direction.

how home position is set can be different ways as long as the axis motion is always changing in the correct positive or negative direction relative to the spindle motion dynamically.

aikiaviator wrote:

What is the process to move the X, Y and Z axis back to mid point, when the machine says cant because limits activated?
 

I think you have this a bit wrong. Home switches need to remain triggered until the end of travel. That way, Linuxcnc know which way for initial homing movement. Take the case  of the X axis, Say the home switch is 40mm from end of travel on the left and it stays triggered to the end of travel. If the home switch is triggered when homing starts, Linuxcnc knows it must travel to the right to find the home switch edge. HOME_OFFSET sets the final position. If this is a shared home/limit switch you need to move to the right so the switch is no longer triggered otherwise it will trigger a limit switch error once homing finishes.

If you have seperate home and limit switches, the final position can be in that 40mm where the home switch is held triggered.

good points Rod!