ChipSense CNC vs Heel Drop

ChipSense turns your iPhone into a real-time cutting coach for your CNC router or mill. It does something no other app does: it fuses AUDIO and VISION. ChipSense listens to the cut through the microphone to detect the acoustic signature of regenerative chatter and rising tool load, and at the same time reads the wood grain through the camera to spot knots and hard, figured areas before your bit reaches them. It combines both into a single, live Cut Risk — and tells you exactly when to ease the feed, and when to stop. WHY IT MATTERS • Chatter and overload are how bits dull, snap, and ruin a workpiece. They almost always announce themselves in the sound of the cut — a few seconds before the damage. • Hard grain and knots are visible before you hit them. ChipSense sees them coming. • Catch either early and you save bits, save stock, and get a cleaner finish. WHAT YOU GET • Live cut-state read-out: Idle, Nominal, Heavy load, Chatter, Critical. • Chatter detection tuned to reject spindle-synchronous tones (it knows the difference between the normal cut and self-excited chatter). • Camera grain map that highlights knots and hard grain as a live heatmap. • A fused Cut Risk that combines what it hears and what it sees. • A clear feed advisory — ease off, hold, or all clear — with a suggested feed-rate override. • Built-in demo scenarios so you can see exactly how it responds to a knot, chatter, or a clean cut, with no machine and no setup. HOW TO USE IT Prop your iPhone near the cutting zone with a view of the workpiece, start monitoring, and cut. ChipSense advises in real time. It is a monitoring and advisory tool — it does not control your machine directly. Patent pending. Built by machinists, for machinists.

Heel Drop turns your phone into a real vibration-analysis instrument. Every FFT spectrum comes from your own accelerometer, computed live. No external hardware required. See live time-domain, FFT, and power spectral density views while you record. Save sessions to a history list with peak frequency and RMS acceleration. Export raw data to CSV or a professional PDF report. Every report includes a free comparison against AISC Design Guide 11 walking-excitation limits. This is a simplified reference for engineering judgment, not a certified compliance calculation. You interpret the result, same as with any raw instrument reading. Built for structural and civil engineers, architects, and NVH technicians doing floor-serviceability checks. Bay slabs, mezzanines, gyms, rooftop equipment platforms. One phone, one measurement, no setup. Free tier includes live time-domain and FFT views with peak-frequency detection, saved sessions, and PDF reports. Heel Drop Pro adds PSD analysis, velocity and displacement integration, raw CSV export, and unlimited saved sessions. A phone-level check runs before every recording, so you know when tilt is contaminating the vertical reading. Heel Drop reports raw measured data from a consumer-grade accelerometer. It is not a certified compliance tool and does not replace a licensed engineer's judgment. SUBSCRIPTION TERMS Heel Drop Pro is an auto-renewable subscription, available monthly or annually. Prices are shown in the app in your local currency. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends. You can manage or cancel your subscription in your App Store account settings after purchase. Terms of Use (EULA): https://codeensis.com/heeldrop/terms Privacy Policy: https://codeensis.com/heeldrop/privacy