212 Engineering drawinq [rom first principles 18 1 -~- 2x03 I... 30 8 PART 4 SLIDING BRACKET 60 9 32 8 -+----+-- - $ - 10 40 2x03 PARTS FIXED BRACKET 30 I~ ~I --- --- - - - --H ---I- PART 3 KNURLED NUT Figure 10.13