DRO PROS Touch Probe
Congratulations on the purchase of your DRO PROS touch probe. Currently DRO PROS carries two types of stylus,
breakaway and steel. The breakaway stylus is included as part of the touch probe, and may be pre-installed or
located separately inside a plastic pouch. If the stylus is not installed, or if you want to change out a stylus, please
keep the following points in mind:
When installing a new stylus, do not simply grasp the outside of the touch probe and install the new stylus. Doing so
will allow the hub to rotate inside the body of the touch probe. When installing or removing a stylus,
it is imperative
to hold the touch probe by the hub
, not the outside body! Allowing the hub to rotate inside the body of the touch
probe, will permanently damage the internal parts.
Never install a stylus by simply holding the outer casing of the touch probe!
This is a kinematic style touch probe, and as such, the hub cannot conduct electricity and therefore cannot be made
of metal. Because of this design requirement, the hub is manufactured out of a delrin type plastic. Therefore, be
careful to not over-tighten the stylus, as the threads will strip if the stylus is over-tightened. Snug is good enough!
When inserting a new stylus, do not over-tighten!!
If you can’t get a good enough grip on the hub, it is possible to disassemble the touch probe by removing the three
2.5mm cap screws. Work slowly and be careful to not lose the spring, which is located inside the probe. It has a
tendency to ‘jump out’ if the probe is inverted during disassembly!
Remember, the touch probe is a delicate, precise measuring instrument. While it is manufactured to a much higher
standard than any other touch probe in it’s price class, it still must be treated with due care.
Recommended Operating Procedures:
In order to achieve the optimum results, we recommend you accomplish the following steps:
1 - Clean the contact points
The probe is manufactured and shipped to us with a fair amount of grease on the contact points. We have found that
opening the touch probe and cleaning the contact points thoroughly yields the best results:
