Accuracy Budget — Arc-Welding Cell
RSS error-stack for arc-welding cell: four dominant terms vs the process requirement.
Welding tolerates what assembly cannot — half a millimetre — but parts and fixtures are proportionally sloppier. When the RSS exceeds the wire diameter's forgiveness, the fix is touch sensing or seam tracking, which collapses the two biggest terms to near zero.
Formula
Note: Planning-level engineering estimate — final robot selection, guarding layout and risk assessment must follow the integrator's calculations and a documented ISO 12100/10218 risk assessment.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
RSS error-stack for arc-welding cell: four dominant terms vs the process requirement. A free industrial robot kinematics & cell design tool — no sign-up, no upload, instant results in your browser.
About Accuracy Budget — Arc-Welding Cell
Accuracy Budget — Arc-Welding Cell computes the governing relationship e_RSS = √(e₁² + e₂² + e₃² + e₄²) — independent error sources live as you type. Welding tolerates what assembly cannot — half a millimetre — but parts and fixtures are proportionally sloppier. When the RSS exceeds the wire diameter's forgiveness, the fix is touch sensing or seam tracking, which collapses the two biggest terms to near zero. Defaults are pre-filled with realistic values for this exact scenario, and the worked example substitutes your numbers step by step so the math is never a black box.
How to use Accuracy Budget — Arc-Welding Cell
- 1Enter your values — Robot repeatability, Part placement in fixture, Part-to-part variation, Thermal drift over shift and more (sensible defaults are pre-filled).
- 2Read the live results: RSS total (±), Worst-case sum (±), Margin vs requirement.
- 3Check the "with your numbers" line to see e_RSS = √(e₁² + e₂² + e₃² + e₄²) — independent error sources substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Accuracy Budget — Arc-Welding Cell?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula e_RSS = √(e₁² + e₂² + e₃² + e₄²) — independent error sources with authoritative sources cited on the page (ISO 9283 — Manipulating industrial robots: performance criteria; Craig, J., Introduction to Robotics: Mechanics and Control, 4th ed.)
- ✓Welding tolerates what assembly cannot — half a millimetre — but parts and fixtures are proportionally sloppier.
- ✓Niche-specific defaults give a meaningful worked answer the moment the page loads
Frequently asked questions
What formula does the accuracy budget — arc-welding cell use?+
It evaluates e_RSS = √(e₁² + e₂² + e₃² + e₄²) — independent error sources, exactly as published. Sources: ISO 9283 — Manipulating industrial robots: performance criteria; Craig, J., Introduction to Robotics: Mechanics and Control, 4th ed.. The substituted worked example on the page lets you verify every step against the textbook.
How should I read the result — and how far can I trust it?+
Welding tolerates what assembly cannot — half a millimetre — but parts and fixtures are proportionally sloppier. Planning-level engineering estimate — final robot selection, guarding layout and risk assessment must follow the integrator's calculations and a documented ISO 12100/10218 risk assessment.
When is this calculator the right tool for the job?+
RSS error-stack for arc-welding cell: four dominant terms vs the process requirement. A free industrial robot kinematics & cell design tool. When the RSS exceeds the wire diameter's forgiveness, the fix is touch sensing or seam tracking, which collapses the two biggest terms to near zero. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Do I need to install anything or create an account?+
No. The tool is pure client-side JavaScript: open the page and it works, offline once loaded, with no account, no quota and no data leaving your device.
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