CONSTRUCTION - JIB - Mainly narrow parts, only 5 standard width parts used plus a Ø 1" Bush wheel for the bearing. - CRAB - Two plastic 5mm x Ø1/4" spacers between the Crab side cheeks (2 x No 77) triangular plates. - 4 x 38b Ø 3/8" Bronze 1/4" wide spacers with Vee Pulley grooves, BASE - Made from two special parts I made from salvaged Windmill sails, plus 2 Narrow 1" double angle strips) !! -- Getting all the cables right which are secured to the shafts by 23c Rubber collars, was not exectly fun :-) - I have not included a slewing drive - YET but after XMAS - maybe :-)