Vuzix AR Drift On Roli Pan/Tilt

What you’re describing sounds like sensor drift from the legacy 920VR headset, not a servo issue.

The Vuzix Augmented Reality skill was built around the old Vuzix 920VR and, in ARC, it doesn’t provide a built-in deadband, smoothing, or periodic recenter option in the skill UI. So if the headset’s orientation values slowly drift, ARC will faithfully keep moving the servos.

What to try first

1) Recalibrate the headset before each session

Since you noticed calibration helps briefly, do that after ARC starts and after the headset is fully settled. Also make sure:

• the headset is warm/stable
• you’re in the same head posture you’ll use while operating
• nothing is magnetically interfering near the headset

2) Check whether the Vuzix driver is updating continuously

If the Vuzix manager is still running in the background, try closing anything nonessential except the driver itself. Sometimes legacy headset software layers can contribute to noisy readings.

3) Reduce the servo response using a small script layer

Since the skill itself doesn’t expose deadband/smoothing, the best ARC workaround is usually to route the input through a script or intermediary control so you can filter small movements before commanding D0 and D1.

That gives you:

• deadband
• smoothing
• slower updates
• optional recenter logic

Best-practice workaround in ARC

If you want stable pan/tilt, I’d recommend:

• keep the Vuzix AR skill as the input source
• but don’t send it straight to the servos
• instead, send head values into a filtering script that:
  • ignores tiny changes
  • averages a few samples
  • limits servo update rate

ARC doesn’t provide a built-in deadband setting in that skill, so scripting is the cleanest path.

Why the creep happens

The slow pan drift to one side usually means the headset’s yaw zero point is not perfectly stable. Even a tiny offset, like 0.5 per sample, will accumulate over time and walk the servo to the limit.

Recommended ARC approach

A simple pattern is:

1. Read headset movement
2. Compare to last servo position
3. If change is below threshold, ignore it
4. If change exceeds threshold, move servo gradually

If you want, I can help you build that as a JavaScript robot skill in ARC.

Important note about the Vuzix skill

Since this is a legacy control, I wouldn’t expect new stabilization features to be added there. If you need reliable filtering, scripting is the right ARC solution.

Helpful references

• Vuzix Augmented Reality skill:
  https://synthiam.com/Support/Skills/Camera/Vuzix-Augmented-Reality?id=16046
• Servo controls in ARC:
  https://synthiam.com/Support/ARC-Overview/Servo-Controls
• Create a custom robot skill:
  https://synthiam.com/Support/Create-Robot-Skill/Overview

If you want, I can help with one of these next:

1. a JavaScript deadband + smoothing script for D0/D1
2. a recenter button workflow in ARC
3. a full pan/tilt stabilization setup using the Vuzix input

If you’d like, I can draft the script for Roli pan on D0 and tilt on D1 right now.