Small Drill Bits

Found some small drill bits. The set includes 10 bit ranging from 80AWG (0.34mm) to 61AWG (1mm). It's available through Amazon for $10.

Update

Trying to rebuild the extruder. Using a larger PTFE barrel (60mm x 25mm dia) and heater barrel (60mm long). This allows more overlap between the two barrels (25mm), reducing slippage. The extra length also reduces heat transfer to the plastic extruder body. The additional mass makes it harder to heat, though.

Currently trying to get the filament to push through consistently.