probe angle

[anupamgarg]

we're designing a holder for our probes and were wondering about the angle the electrode comes off the probe - is it guaranteed to be parallel to the probe base? any points of reference for the probe angle that we can use to mount the probe would be very helpful. thanks!

[nsteinme]

The probe is guaranteed to be aligned with the "silicon spacer" - the mirror-like 9x5mm piece at the bottom of the PCB, which covers the probe base. So in principle you want to attach directly to that. I instead attach to the back of the rigid PCB, where it meets the brown flex (see here), since it is more convenient and preserves a thin-as-possible profile for the end of the device near the shank. However in at least one case it seemed that this rigid PCB was not very flat - so there can be a problem from relying on that. If I want to use that particular probe with the curving PCB I'll have to get a new scheme...