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Investigate - Offsets seem higher than expected, causing collisions #9220

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mikecardarelli opened this issue Jan 10, 2022 · 2 comments · Fixed by #9246
Closed

Investigate - Offsets seem higher than expected, causing collisions #9220

mikecardarelli opened this issue Jan 10, 2022 · 2 comments · Fixed by #9246
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@mikecardarelli
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mikecardarelli commented Jan 10, 2022

We're seeing some reports of labware offsets that are too large resulting in crashes.
We have reports of this happening with 2 different examples from the protocol library (the logo protocol and the dinosaur protocol). We don't suspect anything is wrong with these protocols themselves, but perhaps some old offsets are getting added to the new offsets?
We should see if we can get to the root of the issue.

Here's a doc from Songnian with his findings so far (see section #2):
https://docs.google.com/document/d/1yA8hxzc4dwaFHi0wy1iOg1CNmvTV5wKb/edit?usp=sharing&ouid=100832797727286168064&rtpof=true&sd=true

Matthew Hart summarized his findings here:
https://docs.google.com/presentation/d/1G6A8y0gmSrda292MSel-ZDsk1C-lqvbkaUyVvh9HPto/edit?usp=sharing

Here's a related Slack thread: https://opentrons.slack.com/archives/C02MWV2M18R/p1641501880002600

@mikecardarelli
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Note from Emily:
"I followed up with Matthew today, I asked him to downgrade to 4.7, clear his labware cal data and then switch back to the beta and try again (i had a theory that maybe the robot was pulling the old labware cal data still), but his pipette still crashed into the labware."

@mikecardarelli
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Let's make sure the offsets that users think they're applying are actually what is getting applied behind the scenes

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