CASTLE, INC TSM-21 Bosch Motor Carriage Install Page 4 of 25
1 Introduction
Thank you for purchasing a TSM-21 Bosch Motor Carriage upgrade. Since 1985 our goal is to
manufacture and develop machines that make cabinetmaking and casework easier, faster, and
more profitable for woodworking professionals. This upgrade represents our patented screw
pocket cutting technology. Castle machines are made in Petaluma, California and are
manufactured to the highest standards using local vendors wherever possible.
The Castle model TSM-21 is designed for use on a wide variety of materials. The machine
performs well in hardwoods, softwoods, melamine, particleboard and MDF. The machine will
work on materials varying in thickness from ½” to 1 ¾”.
Warning: Do not attempt to perform maintenance or operate this machine until you have read and
understand the information contained in this manual.
1.1 Definition of Terms
TERM DEFINITION
Pocket The depression cuts into material to allow for toe-screw mortise joinery.
Pocket Cycle
The procedure by which the machine clamps the work piece, cuts the
mortising pocket, drills the pilot hole, then releases the work piece.
Web The offset distance from the end of the pocket to the edge of the work piece.