FP-300 Starting Parameters (Office Reference) — FeatherPulse Support

• Power: 75% (225W)

• Frequency: 45 kHz

• Pulse Duration: 165 μs Progressive Fluence Increase Guide Step 1: Frequency Reduction (Safest First Step) Purpose: Increases energy per pulse without adding heat

• Power: 75%

• Frequency: 35 kHz (↓ from 45)

• Pulse Duration: 165 μs Effect: ~29% fluence increase Step 2: Further Frequency Adjustment

• Power: 75%

• Frequency: 25 kHz (↓ from 35)

• Pulse Duration: 165 μs Effect: ~80% fluence increase from baseline Step 3: Combined Power & Frequency

• Power: 80% (↑ from 75%)

• Frequency: 30 kHz (optimized)

• Pulse Duration: 165 μs Effect: ~113% fluence increase from baseline Step 4: Maximum Safe Setting

• Power: 85% (maximum per your requirement)

• Frequency: 20 kHz (↓ for maximum fluence)

• Pulse Duration: 200 μs (↑ slightly for better coupling) Effect: ~187% fluence increase from baseline Key Considerations from Research:

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1. Optimal Range: Studies show 5 J/cm2 is ideal for aircraft skin paint removal (Boeing BMS10-11 primer)

2. Warning Signs of Excessive Fluence: o Surface waviness or "petal" deformation increases o Substrate color changes (indicates reaching base metal) o Excessive heat buildup

3. Pulse Duration Adjustments: o 100-200 μs optimal for paint layers o Shorter pulses (100-150 μs) for thin coatings o Longer pulses (200-250 μs) for thick or stubborn coatings Recommended Test Progression: Start with Step 1, test on a sample area. If insufficient removal, progress to Step 2, and so on. Most users find optimal results between Steps 2 and 3. Note: The research indicates that excessive fluence (>6 J/cm2) can damage aluminum substrates, particularly around rivet areas where fretting fatigue is a concern.

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