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[OpenArm] Homing offset drift after power cycle for builders integrators (intermediate)

How do you tell whether OpenArm startup drift after a power cycle is harmless, expected, or a sign that homing and calibration are no longer trustworthy?

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Some OpenArm teams only notice a calibration problem after a power cycle: the arm boots, homes, and looks normal, but end-effector repeatability has quietly shifted.

How are you diagnosing homing offset drift after power cycles on OpenArm?

Please share how you compare startup poses, verify encoder zero consistency, and decide whether the issue is acceptable drift, a mechanical slip, or a recalibration event.

If you reply, include one exact post-boot symptom and one exact check that confirmed the source of the drift.

Related troubleshooting path: Base Mount Moved And Calibration Reference No Longer Matches · Can Bus Timeouts And Recovery

Module: OpenArm · Audience: builders-integrators · Type: question

Tags: openarm, homing, offset-drift, power-cycle

Comment 1

Good replies will say how drift is measured, not just that it appears. Searchers usually need the exact comparison workflow.

Comment 2

If a fixed fixture or startup pose caught the problem quickly, share that test. It is more useful than a generic recalibration recommendation.

Comment 3

The most reusable answers here explain when you stop logging the issue and decide to recalibrate immediately.

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Quick FAQ

What is the fastest intermediate diagnosis flow?

Reproduce "[OpenArm] Homing offset drift after power cycle for builders integrators (intermediate)" in a controlled loop, then compare baseline vs current measurements before applying partial fixes.

python tools/reproduce_issue.py --case current_thread
python tools/validate_fix.py --checklist standard_intermediate
When should I stop patching and run full recovery?

If residuals or drift fail your acceptance limits after warmup, switch to full recalibration/recovery workflow.

Can I copy these commands as-is?

Use them as a checklist template first. Confirm interface names, fixture IDs, and safety conditions in your own cell before execution.