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Jun 17, 2008, 12:27 PM
Sea Dragon-Lover
Umi_Ryuzuki's Avatar
Thread OP
Quote:
Originally Posted by RGinCanada
I think you're messing with us!!!

(You've already got it worked out, don't you?... Come on now, fess up!)
No, I don't...
I have an idea,... machine the rest of the hub down on the left side,
then place a pully on the shaft. Cut out the back of the winches drive
cover and place a geared 400 series motor behind the winch proper.(no room under deck)

I am out of channels, and I already use a Spektrum DX6.
2 channels throttle
2 channels steering
1 channel fire monitors.
Last channel(gear) is either on or off..

However I could switch like I ran the bow thruster on Minyamo.
Left (gear)switch back to lead power to the fire monitors. Right (flaps) switch forward to turn them on.

Left (gear) switch forward to turn on the winch.
Right (flaps) switch to control the direction. Default switch back to wind in...

That would pretty much run me out of channels completely.
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Jun 17, 2008, 01:23 PM
Tinkerer in Training
RGinCanada's Avatar
I like the idea of using the gear switch as a selector and the flaps switch as the controller for the selected device.

Why not use a continuous rotation hack on a mini-servo as the drive for the winch? You might be able to squeeze that into the thickness of the deck...

(I'm sure you will have a reason for using the motor..)
Jun 17, 2008, 02:11 PM
Sea Dragon-Lover
Umi_Ryuzuki's Avatar
Thread OP
Servo voltage is lower than the fire monitor pump voltage...
If I use this switching, it either has to have matching voltages, or
use some relays... hmmm.
Jun 17, 2008, 02:26 PM
Tinkerer in Training
RGinCanada's Avatar
Are the monitors on/off or proportional? If they are on/off, aren't you OK for channels? (for now)
Jun 17, 2008, 02:32 PM
Sea Dragon-Lover
Umi_Ryuzuki's Avatar
Thread OP
Quote:
Originally Posted by RGinCanada
Are the monitors on/off or proportional? If they are on/off, aren't you OK for channels? (for now)
The "gear" and "flaps" channel are both on/off.
So if the monitor is on/off at the flaps, then
the "gear" channel at the winch would be on all the
time in/out, or off/in... and run only one direction...
Jun 17, 2008, 02:38 PM
Tinkerer in Training
RGinCanada's Avatar
I thought flaps was usually a proportional channel... Never mind then

I guess a double pole double throw relay would work, or a simple switch on the common ground side. (Not strictly best practice, but would probably work)
Jun 17, 2008, 08:57 PM
Registered User
I was thinking about a high torque metal geared servo (like say the stocker in my Nirvanna II when I switch to a winch) ... with a big gear added to it.. and then on my winch running a smaller pinion type gear on the shaft for my winch. then using my flap or gear switch in an In/Out config.. switch it on and it goes out to a set point.. switch it "off" and it reels in to normal 'stowed' length

another thought winch wise was putting the on/off switch on a crane with the winch line on a hook... but put the winch spool on a coiled spring. put the crane on a pivot with a spring under it .. hit the switch and the crane swings out with the hook ready to grab something... hook on .. start to power away and the winch line automatically spools out... but the crane still has 30 degrees or so left to right movement as you adjust to get away from your load enough to swing it back to center... flick the switch "off" as you center up and the crane swings back in... line spooled out and the crane again has 30-45 degrees off center pivot movement on it's base spring for manouvering .

or... like I have to with my crane build.. take 2 channels for the hook line.. 1 switch off or on for up or down polarity from a servo activated switch/relay.. and then the other switch activated the winch motor in which ever direction selected
Jun 17, 2008, 09:01 PM
Registered User
I just had another thought... couldn't the radio itself be modified?.. being the flap and gear switchs aren't really 'on/off' but are full travel one way.. full travel the other... why not just put in a 3 position switch.. so in the middle there is no signal?...
Jun 17, 2008, 09:49 PM
Sea Dragon-Lover
Umi_Ryuzuki's Avatar
Thread OP
Quote:
Originally Posted by Reckless
I just had another thought... couldn't the radio itself be modified?.. being the flap and gear switchs aren't really 'on/off' but are full travel one way.. full travel the other... why not just put in a 3 position switch.. so in the middle there is no signal?...
I asked Cliff Shaw to do that when he did the original dual stick installation.
He fought me the whole time saying that it was programmed for a specific
action, and it couldn't be altered.

Now if someone has installed such a switch on the old DX6, tell me what
parts to install, And how to set the resistors to balance the signal and I'll
get right to it. I am good at "monkey see monkey do.."
Jun 18, 2008, 01:11 AM
Registered User
hmmmm dunno about the DX6 .. I have the Futaba FASST that I just bought on my brain .. their operation sounds similar just a wondering thought if said switch could be thrown in

'technically' your not really altering what it's programmed for.. your just stopping it's signal to send the servo one way... and it's not seeing the signal to send the servo the other way... dunno .. maybe I'll get the nerve to try it in my new radio *nail biting* LOL
Last edited by Reckless; Jun 18, 2008 at 01:47 AM.
Jun 18, 2008, 01:54 AM
Sea Dragon-Lover
Umi_Ryuzuki's Avatar
Thread OP
Quote:
Originally Posted by Reckless
hmmmm dunno about the DX6 .. I have the Futaba FASST that I just bought on my brain .. their operation sounds similar just a wondering thought if said switch could be thrown in

'technically' your not really altering what it's programmed for.. your just stopping it's signal to send the servo one way... and it's not seeing the signal to send the servo the other way... dunno .. maybe I'll get the nerve to try it in my new radio *nail biting* LOL
Actually, you would be sending a signal that the would make the servo turn
Left till it matched the wave length, or turn right till it matched the wave length. Center would still be a signal.. but it would be something like twice the full left signal, and half the full right signal..

or something like that...
Which is why it needs to be balanced. Usually requires an ocilliscope...
The DX-7 can be programmed to three postion, or proportional on those channels. Your Futaba may be the same... you might simply just have to read
the instructions.
Aug 21, 2008, 07:08 PM
Sea Dragon-Lover
Umi_Ryuzuki's Avatar
Thread OP
When we last saw the SDM, it was at Foss Cup struggling to pull a Medium
class salvage, when the SDM should have been classed Small... oops.

With all that extra effort, the ESC demanded that the proposed cooling be
installed. A little late nite efforts produced a couple holes and some duct
work. And during some glue dry time on another project, a bit of installation
and detailing.

The SDM has an engineering escape hatch on the port stern quarter.
I had planned to build it up and maybe use it as an "air port". However,
the heat cut outs during a heavy tow demanded that it be used as
an air intake.

So here is the air cooling aspect for the SDM's interior.
It is no longer a sealed "box", it has an exhaust fan, and air intake.
The new installation should create a nice cross flow of air over the
ESC, and low voltage regulator, and pull the heat out of the hull.
Aug 21, 2008, 07:20 PM
Sea Dragon-Lover
Umi_Ryuzuki's Avatar
Thread OP
Also sent to me from Ohio,
A new SDM build by Ccyrus6648.
Not sure why he isn't posting these himself, but it is a good looking build.
Last message from him said it is seaworthy, and needs fenders.

I believe this may match up the models and the actual boats.
Eight real SDM, and eight RC SDM models.

Can't imagine where he got the inspiration.
But it is a really cool boat.
Aug 21, 2008, 07:36 PM
Registered User
Wicked cool!
Aug 22, 2008, 11:23 PM
USA'd ex Brit
toesup's Avatar
Quote:
Originally Posted by Umi_Ryuzuki
When we last saw the SDM, it was at Foss Cup struggling to pull a Medium
class salvage, when the SDM should have been classed Small... oops.

With all that extra effort, the ESC demanded that the proposed cooling be
installed. A little late nite efforts produced a couple holes and some duct
work.
Air is good Umi...
Are you going to watercool those Mtroniks too?...


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