Time: 1.5 hours Cut three lengths, 45mm, 40mm, 15mm using mitre and hacksaw Locate hole for bolt by putting masking tape on bottom, and marking centre line front to back. Place upright in position and place nylon block in position.  Mark centre of block front-to-back on the tape. Double-check centre, mark the location of hole on tape.  Drill 4mm hole Assemble parts and glue as shown, ensuring 'T' is square and using the block to locate the upright left-to-right position. When dry, drill the three 3mm mounting holes as shown Using the rotary tool with cutting disk, cut away lower support (marked red) to avoid interference with the subchassis. Drill a pilot hole for the spring hanger screw into the centre of one smooth face of the suspension block. Arrange washer, spring loop, washer on the screw thread, and screw into block. Check screw is secure and does not intrude into the vertical threaded hole. To finish (after mount is fitted to plinth back), fit PT suspension bolt through hole and O-ring retainer, and screw into the suspension block as indicated.