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nick_75au's blog
Archive for February, 2010
Posted by nick_75au | Feb 06, 2010 @ 03:29 AM | 8,273 Views
I read Glynn Guest's article on simple control for steam engines posted in the forum, and seeing as I had already built the clamshell part I thought about trying it on them, so I grabbed some PCB material and fitted the servos to it and soldered the outer tube to the PCB copper surface. Made up some copper wire servo linkages(will bend if there's a problem), turns out this was a good idea as getting the buckets to sit correctly was a bit of trial and error.

Moving the servos to the centre improved the operating of the system, both servos in line with the centre may be even better.

the system requires a V-tail mixer to work correctly

here is a mechanical mixer that will work with a simple 2 channel radio
http://www.interq.or.jp/sun/miki-k/vol_2/cont_2.htm




The second picture is how my rudder is assembled, It needs a third tube to act as the bearing for the assembly.

Another thought
I think that with flexible cables the two servos can be remote mounted anywhere. . The angle of the actuator arms does not seem to matter so could be mounted in a very narrow stern.

Link to the original Glynn Guest article, post by steamboatmodel
http://www.rcgroups.com/forums/showp...&postcount=725