Phone Clip-On Microscope for 3D Print Flow Rate Calibration

This microscope is designed to help 3D printer users manually verify flow calibration results when automatic flow calibration is insufficient or unavailable—such as on X2D remote-feeding setups. It excels when working with third-party filament, third-party nozzles or modified printing configurations. By magnifying printed flow test samples, it reveals line width, micro-gaps, squeezed edges, ridges, over-extrusion, under-extrusion, and surface inconsistencies far more clearly than the naked eye. Attach it to your smartphone for detailed photo and video documentation, or detach and inspect directly for quick printer-side checks. At just 38 g, it fits easily in your toolkit, stays near your printer, or integrates into QC workflows. While not a calibrated measuring instrument, it serves as a practical visual aid for faster flow-rate decisions, manual calibration verification, and 3D printed sample inspection.