IR Heart rate monitor clamp
thingiverse
Finger clamp for monitoring heart rate Uses 5 mm IR LED diode and photo transistor. Could also be used as pulse oximeter. Notes: Measurements have shown, that transparent filaments don't work well. Best results are when IR LED and photo transistor are placed opposite of each other, but you're experience may very. Print Settings Printer: Geeetech i3 Rafts: Doesn't Matter Supports: No Resolution: 0.2 mm seems to work Infill: 20-100% Notes: Hinge is rather fragile. Don't tighten it too much. Post-Printing Sending is optional. Redrill the holes for the LED and screws.
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