jusval
October 9, 2008, 5:16pm
39
marcsmith:
hey those electronics look familair…
how are going to handle the thru-deck for the rudder linkage…it looks like its above the deck
and you might need a longer servo arm for the sheets…although if you have a Mc rig i guess not…
Hey, those electronics Are familliar:D
The linkage will come thru the deck. I have cut an opening for it. I don’t know how I will cover it yet.
I’m going to use a sheet system like this, From the thread: http://www.rcsailing.net/forum1/showthread.php?t=4740
Justin,
Sorry, I was probably unclear about what I meant by double purchase. Footys are generally toooooo small to accomodate pulleys - I simply meant a system where the linear “pull” of the servo arm is doubled by having the fixed end fixed, and the servo arm pulling the loop of the sheet so that it slides thru the hole in the arm (poor man’s pulley) and gives double the length of pull at the sail -
Sketch is attached of Gary’s method of doing this - his servo arm is aluminium (screwed to the servo disc) with a beautifully rounded hole for the sheet. This set up also includes a adjustor to set up the basic length for lots of different sails and mast pivot positions
andrew
I already set it up on a board and used the components like a jig, to see how it would work. It’s just the right throw to let the sail out a little past 90 degrees and draw it back in with no slack… Got to get lucky sometime… Only my sheet will go under the deck and come out just before the anchor point on top of the deck…
Thanks marc;)