Join Date: May 2013
Location: glen burnie, md
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Re: why so long?
we ask ourselves, when we get in a fix, what would popeye do in a tight spot like this? he'd race for his true love, and easily win it, in an all spinach can with a mast stuck in it.
lol. love that line.
the more i read, and see what other ideas are out there, the more i think a chain drive set up, as i suggested above, would be great for a DIY set up. i was doing some thinking about how i would design it and i think that the chain sprocket on the rudder post should be between 4 and 6 times the size of the one on the shaft that passes through the pedestal. that would be 1 to 1.5 turns of the wheel from 'lock to lock', assuming that you don't need the rudder to turn more than 45 degrees to each side.
is that a logical assumption? should i narrow that up a bit, since the rudder stalls before 45 degrees?
anoter question. i have been using 1.5 turns from lock to lock as a base-line because it was suggested. however, i'm not sure why one turn lock to lock wouldn't be good. i would think it would give a similar feel, to the wheel, as you have with a tiller.
cost-wise, you'd be looking at no more than 40 bucks for the sprockets, maybe less. another 20 for bearings. around 100 for the mitre gears, where the wheel shaft meets the vertical shaft in the pedestal. 80 bucks for a decent non o-ring motorcycle chain. maybe less. it could be a fairly short chain, compared to one used on a motorcycle.
maybe another 40 for misc materials. you could probably do it for 250 plus the cost of a used wheel on ebay. i have seen some of them go fairly cheaply. so, maybe 300, a little over or a little under. using a cable set up would be cheaper and easier to build but i like this idea because it's all 'hard' parts. no cable. then again, with proper maintenance, cable systems last, dependably, for a long time. maybe the 'hard part' advantage wouldn't really offset the cost difference.
The only rules that really matter are these: what a man can do and what a man can't do.---Captain Jack Sparrow
1971 Cal 27
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