Tufts University Senior Design Project: EEG Headset for VR/AR Research

USER GUIDE

HARDWARE REQUIRED:

• TPU parts (STL files: earpieces and electrode headband straps)
• 2 mm wire
• 2 inch wide knit elastic band
• Velcro strips
• Thread for sewing
• 2 nuts, bolts, and washers
• Snap electrode cables
• Snap electrodes

INSTRUCTIONS:

Printing TPU parts

• Find our part files on Github
• You may need a 3D printer that works with TPU and has a bed large enough to print the electrode straps OR outsource the parts elsewhere

Assembling the Headset

• Measure:
  • 2 pieces of elastic band: (1) ~37 cm and (2) ~47 cm
  • 2 velcro strips: (1) 10 cm and (2) 13 cm
• Pull elastic band through TPU earpiece slots (see image)
• Sew elastic and velcro strips together accordingly
• Attach an 8-32 bolt through hole in ear slot – with the body of the screw pointing away from your head
• Layer TPU straps over the bolt with a washer & a nut – place front most band first (on bottom), then middle strap (on top)
• Tighten the nuts to secure the straps
• Thread wire through holes in the TPU straps to connect them to the third band
• Slot the snap electrodes through the holes in each TPU strap
• Adjust headset to each specific user

By Katie Castor, Emmy Daro, & Athena Ohnemus

Special thanks to Tufts University Department of Mechanical Engineering and MERL