Magnetic Linkage couplings

[toppack]

I'm presently using the small (2.5mm diameter) Magnetic Linkage couplings, but having a problem, with the ones in the dive-plane servo linkage, coming loose some times, since all 4 DPs are connected to 1 servo.
So I ordered 2 other larger diameters of the Rare-earth Magnets, and will experiment with those. They make a 5.mm cylinder type which I'll try first.
The larger ones may be good to help hold down decks and covers Also.

[He Who Shall Not Be Named]

I'm presently using the small (2.5mm diameter) Magnetic Linkage couplings, but having a problem, with the ones in the dive-plane servo linkage, coming loose some times, since all 4 DPs are connected to 1 servo.
So I ordered 2 other larger diameters of the Rare-earth Magnets, and will experiment with those. They make a 5.mm cylinder type which I'll try first.
The larger ones may be good to help hold down decks and covers Also.

CA 'em back in place.

David,

[toppack]

I have the magets CA glued into plastic sleeves, It's the magnets themselves that are diconnecting. I need stronger magnets with this linkage that goes both fore and aft.
I tried putting a rubber-tube-sleeve over both magnets and it helped but they still sometime disconnect if I activate the servo quickly. :(
So I think stronger magnets is the best solution. I hope.
I think I'll use brass tubing to hold the magnets onto rods, with both magnet and rod glued inside the tubing. With thin-wall brass tubing, the overall diameter will be about the same size as the plastic-sleeve over smaller magnets configuration.

[toppack]

I received the larger magnets (5.mm size will be used in DP linkage) so we know what I'll be doing today. ;)
The 5.mm Gauss value is at least 3 times that of the 2.5mm, maybe more. :)

[toppack]

The 5.mm Magnets work Great!:)
Almost Explosion Proof! :D
I painted the assemblies gray to hide my Lousy solder connections and to seal epoxy-glue used to assemble them. :D
Two pieces of brass tubing are soldered together (1 larger than other), for each of the 4 assemblies, then magnet is glued into each one and each is glued to shaft. No linkage adjustment at magnets that way, but it's not really needed, if adjusted before glue hardens.
Click Pic:

[He Who Shall Not Be Named]

The 5.mm Magnets work Great!:)
Almost Explosion Proof! :D
I painted the assemblies gray to hide my Lousy solder connections and to seal epoxy-glue used to assemble them. :D
Two pieces of brass tubing are soldered together (1 larger than other), for each of the 4 assemblies, then magnet is glued into each one and each is glued to shaft. No linkage adjustment at magnets that way, but it's not really needed, if adjusted before glue hardens.
Click Pic:

Damn!

Heavy duty!

David,

[toppack]

I'll take that as a Compliment. :D LOL :D
Thanks, David

[toppack]

On the T-class model, I think I'll try using 10mm magnets and guide-pins to hold on the deck/cover. I'll first try 2 horizontal pins at bow and 2 magnets acting as vertical pins at stern, and see how that works.
The 10.mm size are Very Strong.
That will make removal and installation easier and with no exposed screw heads. :)
There will be some flotation-foam on under side of cover and the camera power-wire will act as a safty-cable, just in case cover should come loose while in water. (If a Fish gets too friendly or something) :D LOL :D
Has anyone tried this before?

[Kazzer]

I tried magnets on my S Class effort and I found they simply were not strong enough. I ended up using a pin in the front flange of the upper hull, and a locating hole in the forward end of the lower hull. Simply pushing the upper hull into the lower one located the pin and hole, then a screw in the tail end finished the job off.

You'll find a good fit between the two, little sanding to do and I'll wager this is a better option for you.

[toppack]

Mike,
Did you try the small 2.5mm size magnets (Kli-Cons size)?
There's a big difference in holding power of those and the 10.mm size.
In fact pairs of 10.mm size may be Too strong, might make the cover difficult to get off, (with 2 sets of 2 magnets each), without using a Crow-bar.:D
I may have to use the 5.mm size Instead or just use 2ea 10.mm connecting to steel inserts, Not 2 sets of 2 magnets (total 4), which is very strong.
I'll need to do some experimenting to find out which set-up is best, when I get the hull.