invalid reading of the measured point

[ginnbob]

this is the error i am getting. what does it mean and how do i fix it?

[neil.challinor]

It's normally when you've manually loaded a styli onto an analogue (scanning) probe but haven't performed a weight balance. Can also happen after a collision. To manually perform a weight balance, press the probe enable button twice (once to disable, once to enable again). An automatic weight balance will be performed whenever you index the wrist or do a tool change from a probe rack.

[Kp61dude!]

So that's what it is called. Now I know.

[ginnbob]

I tried this and it didn't fix anything. how about any other tricks?

[neil.challinor]

What's your prehit/retract value and your touchspeed? For analogue probes the touchspeed should be 2mm/sec. You also need to make sure that you calibrated with that touchspeed - the touchspeed value within the probe utilities dialogue should always be the same as the value in your programs.

[neil.challinor]

For prehit and retract, make sure the probe isn't hitting the surface too soon. If your prehit is set too small and the part has a large amount of deviation the tip may already be in contact with the surface when it enters it's probing cycle. Increase the prehit & retract if that is the case.

[ginnbob]

.06 for the pre/hit and retract and 2mm/sec for the touchspeed.

[neil.challinor]

Try increasing your prehit - as a test, set it to a large value like 0.25 if you can (I assume you're working in inches - if not then it's definitely too small - I'd make it at least a few mm)

[ginnbob]

it doesn't seem like anything is working.

[neil.challinor]

Sorry to hear that. I suggest contacting your local Hexagon support.

[BKulpa]

Is this a scanning probe or TTP? If scanning check you optional probe parameters and be sure to have an optional probe command before the 1st load probe command in the routine.