TESA MH3D, User Manual

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User's Manual
MH3D
©2004 TESA Switzerland All Rights Reserved.
Page 3-11
The home position for the MH3D is in the upper front left corner of the machine.
Before any measurements can be made, the machine must be moved to its home
position and that position must be recorded in the software. This is so that the
machine has a reference position to which it can relate all axes movements.
• To home a MH3D, release the axis lock switches so the machine floats
freely. Slowly move the Z axis to its highest point where it will hit the Z
axis end of travel stops. You do not want to slam the axis against the end
of travel stops.
Slowly move the ZX carriage in the -X and -Y directions
until you hit the stops for the X and Y axes in the front left corner of the
machine. Without moving the machine, relock the axis lock switches.
Press the Done softkey to tell the measurement software that you are now
in the “Home” position.
• Clean the reference sphere
and mount it to the table. Be
sure the connections are tight.
It should always be positioned
where it will not interfere with
the mounting or measuring of
workpieces.
NOTE: After the reference
sphere has been located it
should not be moved! Refer
to the Getting Started Manual
for instructions for locating
the reference sphere.
• Reattach the probe to the
probe holder.
• Adjust the Z Axis counterbal-
ance for your probe. It should
be adjusted so the Z rail does
not rise or fall when the probe
holder is not being held.
• Qualify your first tip.
• Verify that the offsets and
home position are correct by moving the machine back to the home and
reading the machine position. The machine position (X,Y,Z) will be the
current probe offsets.
• Mount the workpiece if one is not already mounted to the table.
• Begin the measurement session.
• If the machine is to be stopped overnight or longer, it is recommended that
the air supply be shut off. Whenever the machine is left unattended, the
axis lock switches should be placed in the Fine Adjust or “locked”
position to prevent inadvertent operation. Machines equipped with the
optional air saver will automatically shutoff the air supply after a predeter-
mined time interval, if enabled. See the Software Manual for details.
• After a power loss, the procedure for starting is the same as above.
• After a power loss, the machine homing sequence must be repeated.
Homing the Machine
-Y
-X
+Z
NOTE: The boxed letters refer to the movement
necessary for the Bridge/XZ-Carriage/Z Rail to
reach the "home" position.