Matt Thor 60" 1/72 Scale Akula II

[Ralph --- SSBN 598]

Re: Matt Thor 60" 1/72 Scale Akula II

So much easier to finish the hull smooth with primer and sanding.
Then scribe the primer.
Epoxy and fiberglass is so hard to scribe.
And to make straight lines, even harder.

Primer allows you to fix mistakes quickly and easily.
I think scribing primer makes a finer line as well.
That may just be me!

I have been known to scribe the finish paint coat before clear coating to add a couple of small items I forgot.

Good job. I like it.

[eckloss]

Re: Matt Thor 60" 1/72 Scale Akula II

I F**KING HATE LINKAGES!!!

That is all. Carry on.

[Ralph --- SSBN 598]

Re: Matt Thor 60" 1/72 Scale Akula II

What exactly is it that is giving you problems?

Seals, yokes, servos, tight spaces.

We're going over this issue on the LA Class thread.
viewtopic.php?f=35&t=11983&start=75

[eckloss]

Re: Matt Thor 60" 1/72 Scale Akula II

I'm just about ready to give up on this project.

I suck at making linkages. I have had 5 failed attempts at making the rudder yoke. In the process the sonar pod broke off, the bottom rudder broke off, shit is breaking and falling apart everywhere.

I really wanted this to be a spectacular boat. It's a damn near failure.

[JWLaRue]

Re: Matt Thor 60" 1/72 Scale Akula II

Don't do the yokes.....do the individual servo rods for the dive planes. That'll give you some additional room for the rudders...or do the same with the rudders.

-Jeff

[wlambing]

Re: Matt Thor 60" 1/72 Scale Akula II

Erich,

I'm with Jeff on this one! My Trepang has 4 separate pushrods going to 4 bellcranks, each attached to its own plane/rudder shaft. They are paired with their counterparts in the wider area that is accessable by removing the upper hull and looking straight down. They've never been a problem. She's 19 years old now. One of Matt's mid-90s kits. Beat to crap, but the pushrods still work!!!! Patience, my son. You'll get there and she will be a thing of beauty!!!!!

B^)

[profesorul]

Re: Matt Thor 60" 1/72 Scale Akula II

I'm just about ready to give up on this project.

I suck at making linkages. I have had 5 failed attempts at making the rudder yoke. In the process the sonar pod broke off, the bottom rudder broke off, **** is breaking and falling apart everywhere.

I really wanted this to be a spectacular boat. It's a damn near failure.

DON'T despair !!! .
Some times is better to take a break for a couple days / a week or so , don't think on it , these time and then come back and tray another approach .
Just a thought .
Think about it : is not a regular day job to do for living , is a passion . . Need Devotion , struggle , sweat , E.T.C. ...

Take My example sugested by "RALPH" .
I din't had time to tell You that I was tray to modify the linkages according to new information received , and ALL the part whore Broke , see pictures posted on here : viewtopic.php?f=35&t=11983&p=75531#p75531

MARIUS

[profesorul]

Re: Matt Thor 60" 1/72 Scale Akula II

Sence I wasen't able to find the way to EDIT my earlier Post ,
PLEASE ACCEPT my APPOLOGIES abut the word Miss Spelled ]were[/size] Broke , see pictures posted on here ]viewtopic.php?f=35&t=11983&p=75531#p75531[/url] ...."

MARIUS[/quote]

[eckloss]

Re: Matt Thor 60" 1/72 Scale Akula II

After a much needed break from work, I'm back on it again. I was a tad bit frustrated with the linkages, but taking Jeff's advice and doing each arm individually seems to have done the trick.



.

[profesorul]

Re: Matt Thor 60" 1/72 Scale Akula II

Yours look Better than mine , wayyyyyy ?! .

MARIUS

[JWLaRue]

Re: Matt Thor 60" 1/72 Scale Akula II

I was a tad bit frustrated with the linkages, but taking Jeff's advice and doing each arm individually seems to have done the trick.

Always glad to help!

-Jeff

[eckloss]

Re: Matt Thor 60" 1/72 Scale Akula II

I am having trouble coming up with a method to couple the 1/16" linkage rods to the 2mm servo arm shafts that extended thru the end of the OTW cylinder. I am trying to design and print a custom coupler. We shall see....

e.

[eckloss]

Re: Matt Thor 60" 1/72 Scale Akula II

Here's what I came up with: a double-ended coupler. One end is 2mm to accept the shaft from the cylinder. The other end is 1/16" to accept the rod attached to the linkages. The holes along the side are for 4 2mm set screws.



.

[JWLaRue]

Re: Matt Thor 60" 1/72 Scale Akula II

Erich,

For those kinds of connections, I just use a Dubro wheel collar that has a large enough I.D. that allows both rods to slide in....then simply tighten the set screw. This also essentially makes it a snap to adjust.

-Jeff

[eckloss]

Re: Matt Thor 60" 1/72 Scale Akula II

Jeff,

I thought of the same thing. The 2mm shaft fits nicely into a 3/32" collar, and of course a 1/16" collar for the other end. I've tried to solder 4 collars, two of each, all together into a larger coupler without much success (i don't have any 3/32" aluminum rod and therefore have to use brass, which always ends up taking on some of the solder and sticking everything to the rod).

If this doesn't work I may re-examine the wheel collar option.

e.