KMC Depth cruiser question

[Monahan Steam Models]

Meant to ask this question many months ago but as I am back working on the Type VII project lately I’ve needed to blow the dust off the WTC that was built for it and begin bouncing back and forth between building the mechanical guts of the hull and use the electronics of the WTC.

I have the depth cruiser module plugged in between the receiver and the forward planes servo. When I move the stick on the transmitter one direction, I get normal rotational travel at the servo. When I move the stick the opposite direction I only get a fraction of the travel compared to the opposite direction. Is this normal behavior for these units?

[Ken_NJ]

This may or may not be related Nick. When I was at Subfest, I used the same transmitter for two submarines. I was not getting proper movement for one set of planes, minimal movement. I realized the toggle switch for v-tail mixing or one of the other toggles on the transmitter was causing the problem. Once I put the toggles in the other position, the servo movement went back to what it should be.

[Monahan Steam Models]

Ken,

Thank you. I just checked the transmitter again and it does not appear to be one of the toggles. I have forward planes on channel 2. The end points are set to equal. I get about 45 degrees of travel from neutral in one direction and maybe 15 degrees in the other direction. First time I’ve used one of these so I’m not sure what is normal.

Nick

[He Who Shall Not Be Named]

Meant to ask this question many months ago but as I am back working on the Type VII project lately I’ve needed to blow the dust off the WTC that was built for it and begin bouncing back and forth between building the mechanical guts of the hull and use the electronics of the WTC.

I have the depth cruiser module plugged in between the receiver and the forward planes servo. When I move the stick on the transmitter one direction, I get normal rotational travel at the servo. When I move the stick the opposite direction I only get a fraction of the travel compared to the opposite direction. Is this normal behavior for these units?

Sounds like your dry DC is 'on'. Turn it off by a flick of the stick (in one direction it turns the DC on, in the other direction it turns the DC off) When 'off' you should see full throws of the bow planes. Yes?

Now. Just for fun. Read the instructions.

(ducking for cover).

David

[Monahan Steam Models]

Sounds like your dry DC is 'on'. Turn it off by a flick of the stick (in one direction it turns the DC on, in the other direction it turns the DC off) When 'off' you should see full throws of the bow planes. Yes?

Now. Just for fun. Read the instructions.

(ducking for cover).

David

Not sure what I’m doing wrong. I did read the instructions a few times. The limited travel in the one direction doesn’t change after giving the stick a flick. Tried multiple times. First I would move the stick normally in both directions to observe the travel. Then I would give the stick a quick flick in the opposite direction than the limited travel direction. After that I would move the stick normally again but there is no change. I also tried giving the stick a quick flick in the same direction as the limited travel followed by moving the stick normally to observe any change in travel. Nothing, nada, ziltch.

The servo moves full travel in both directions with a servo tester . It also moves full travel when connected directly to the receiver. I don’t doubt that it is something that I’m doing wrong but I can’t figure it out. F’ing electronics! LOL! It’s too early in the morning for this dag nabbit

[He Who Shall Not Be Named]

Not sure what I’m doing wrong. I did read the instructions a few times. The limited travel in the one direction doesn’t change after giving the stick a flick. Tried multiple times. First I would move the stick normally in both directions to observe the travel. Then I would give the stick a quick flick in the opposite direction than the limited travel direction. After that I would move the stick normally again but there is no change. I also tried giving the stick a quick flick in the same direction as the limited travel followed by moving the stick normally to observe any change in travel. Nothing, nada, ziltch.

The servo moves full travel in both directions with a servo tester . It also moves full travel when connected directly to the receiver. I don’t doubt that it is something that I’m doing wrong but I can’t figure it out. F’ing electronics! LOL! It’s too early in the morning for this dag nabbit

I assume all this is dry, with no pressure applied to the pressure transducer. Hook up a three foot length of tube, after you fill half of it with water, and vary the height of the fluid with the stick in neutral. Any deflection as a consiquence of fluid height? Can you turn the DC on and off now?

David

[Monahan Steam Models]

Yes Sir, everything being done in the dry.

Went back through the set up procedure again and now everything is working. Full travel both directions. The DC can be switched on and off now. Have it set at the default number 2 sensitivity setting. With the long tube filled up about half way with water connected to the brass port on the forward bulkhead that is connected to the DC, it reacts to slight changes in raising and lowering the tube. It’s a chatty lil sucker. Constantly moving the planes servo slightly back and forth. What sensitivity level is most commonly used?

I’m guessing the lack of full travel in the one direction was due to a classic case of operator set up error on my part. Places face in palm and retreats back to my cave of shame….

David,

Thank you for your help!

Nick “the thick”

[He Who Shall Not Be Named]

Your the best wrench-monkey at this forum Nick. That comes with some perks: you have the liberty (like me) to be a total babe-in-the-woods, slobbering idiot when it comes to following -- without miss-step -- set up and adjustment protocols to these little, confounded electronic gizmos.

What is most galling about everything Kevin McLeod produces is the undeniable fact that his instructions are as comprehensive and rational as the English language will permit. BUT, if idiots like you and me follow them, with our usual mistrust and ill-feelings towards all things electronic, we invariably screw up a step Kevin's outlined, or we start thinking we're smarter than him and cut a corner or two. With predicatable results.

First thing they taught us in Navy Torpedo A-school: RTFI (read the ****ing instructions). Followed by, Bad Boy's Rape Our Young Girls But Violet Gives Willingly (resister color band value and decimal placement).



I hate electronics and consider it a Black-Art.



David

[Ken_NJ]

Yea, I didn't follow Kevin's directions by a hair on my ADF2 and he had to guide me through it again for me to get it right. Live and learn.

[Monahan Steam Models]

I usually read his instructions at least three times before I even begin the set up routine. That way I’m prepared and know the following steps. Clearly I still managed to goof it up.

I have a love hate relationship with electronics. Definitely can be a black art. Mechanical no problem! Bring it on.

David,

Is that picture from the boat you served on or was that at the training center? It looks like it was taken on the boat. Very cool regardless.

Nick