Wood can be difficult due to the fixed-bearing feeder. If your model calls for rapid retractions, the gear may strip the soft filament and then it will just slip in the feeder. Some models that don't use retraction may print OK. Usual PLA settings: 200 - 210Âº, bed heat around 50Âº. Clogs are also an issue with wood-filled filament, you may need a 0.5 or 0.6mm nozzle. PolyWood does not actually contain wood, but it has a nice organic look and does not suffer from stripping or clogs. It's expensive, though.