noun
A wooden stand used to support logs or lumber while sawing. Common in traditional woodworking and carpentry.
大工さんが木挽き台に丸太を乗せて、のこぎりで挽き始めた。
The carpenter placed the log on the sawhorse and started sawing.
Also means 'sawhorse' in a carpentry context, but 馬 is a more general term for a wooden stand and can refer to a variety of trestles, whereas 木挽き台 specifically refers to a stand used for sawing wood.
Compound of 木挽き (kobiki, 'sawing wood') + 台 (dai, 'stand'). The term is transparently derived from its components.