We bought a used Sheffield D28 that has a Tesastar-M probe head. We mostly use star probes, so dont really need a rotating head. And I've heard that this model head can be a problem... thinking of switching to a PH6 or at least getting a used one to have as a backup if the Tesastar conks out. But I dont know whats involved in swapping out different probe heads... Any info about this would be appreciated.
First, contact your local Hexagon Service Department for a quotation.
There will be lots of wiring harness differences, this is not a plug-n-play operation.
It would be a permanent change.
Next, the Tesastar-M heads are almost always killed by having long extension bars between the wrist and probe, the weight hurts them over time.
Being a used machine (D28 predates Tesa, so the wrist is probably a recent addition!), you don't know how much the previous owner abused the wrist.
The good news is that when they begin to go bad they advertise it with long hesitations trying to lock in place and a loud click or pop when they finally make it.
So fire it up and run it through a bunch of angle changes, watch and listen.
Finally, wrists are amazing problem solvers. You can measure things with a wrist machine that you could never hope to get with a star cluster.
I'm working on a job this week where I have an L-star stylus flipped upwards at A90 so the stylus points up in the air, sneaking under a part to pick up the hidden datums with no drama at all.
First, contact your local Hexagon Service Department for a quotation.
There will be lots of wiring harness differences, this is not a plug-n-play operation.
It would be a permanent change.
Next, the Tesastar-M heads are almost always killed by having long extension bars between the wrist and probe, the weight hurts them over time.
Being a used machine (D28 predates Tesa, so the wrist is probably a recent addition!), you don't know how much the previous owner abused the wrist.
The good news is that when they begin to go bad they advertise it with long hesitations trying to lock in place and a loud click or pop when they finally make it.
So fire it up and run it through a bunch of angle changes, watch and listen.
Finally, wrists are amazing problem solvers. You can measure things with a wrist machine that you could never hope to get with a star cluster.
I'm working on a job this week where I have an L-star stylus flipped upwards at A90 so the stylus points up in the air, sneaking under a part to pick up the hidden datums with no drama at all.
A_Shomshor I have such a probe and i calibrate it on the +Y , -X and -Y spheres. The wrist angle is A90B-whatever-i-need and the stylus is pointing at +Z. Never had a problem calibrating it.
