Beam compass

（重定向自Circle cutter）

sharp point used to score a fine line in the birch plywood connected to each other by a piece of 3/4

A beam compass is a compass with a beam and sliding sockets or cursors for drawing and dividing circles larger than those made by a regular pair of compasses. The instrument can be as a whole, or made on the spot with individual sockets (called trammel points) and any suitable beam.

单词	Circle cutter
释义	Circle cutter 英语百科 Beam compass （重定向自Circle cutter） A beam compass is a compass with a beam and sliding sockets or cursors for drawing and dividing circles larger than those made by a regular pair of compasses. The instrument can be as a whole, or made on the spot with individual sockets (called trammel points) and any suitable beam.
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