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Author Topic: Glen's build of an Armidale  (Read 49997 times)

brianB6

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Re: Glen's build of an Armidale
« Reply #75 on: June 19, 2011, 01:15:08 AM »

And Professor Higgins in My Fair Lady who commented that "the Americans have not spoken it (English) for years"
Back to the subject please. O0
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Glenedge

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Re: Glen's build of an Armidale
« Reply #76 on: June 19, 2011, 02:01:41 AM »

Speaking of subject,  I tried the cone idea didnt like it. Might see if i can talk the fitters at work to whip one up on the lathe out of teflon.  %)

Glen
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Peter Fitness

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Re: Glen's build of an Armidale
« Reply #77 on: June 19, 2011, 05:34:27 AM »

Speaking of subject,  I tried the cone idea didnt like it. Might see if i can talk the fitters at work to whip one up on the lathe out of teflon.  %)

Now that sounds like a plan O0 Let us know how it goes.

Peter.
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sjbatche

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Re: Glen's build of an Armidale
« Reply #78 on: June 19, 2011, 02:09:57 PM »

Hi Glen

I am starting to get a few bits finished for my 1:50 scale Armidale. I will be having a go at moulding some of these components in the next few weeks.

I have been using a mates vacuum chamber to mould parts for some of my other models recently and this has inspired me to build my own vacuum chamber. My vac pump arrived in the post on Friday so as soon as I can construct the rest of the chamber I will be making some rubber moulds of my finished 1:50th Armidale components.

The dish and the gun are the first items that I will be attempting to mould. Hopefully soon after I will be able to mould the RHIB's as these are also starting to take shape.

If you are not able to get a dish turned at work then I may be able to supply one in the not too distant future.

Steve
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brianB6

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Re: Glen's build of an Armidale
« Reply #79 on: June 19, 2011, 11:47:23 PM »

I remember many years ago, seeing a home made vac chamber that used a vacuum cleaner as the pump.
The way the styrene was sucked onto the mould for an electric speed hull, was very impressive.
The cleaner would probably be OK for a limited number of models but not on a large number.
I have tried making ships boats with just a solid wood mould  and the styrene clamped between two pieces of 6 mm. ply.   Getting just the right heat and pressing down on the mould as quickly as possible, is critical.   Only suitable for one or two goes since it takes so long to fix the styrene in between the ply.
The Radomes would be two other useful items to mould.
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brianB6

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Re: Glen's build of an Armidale
« Reply #80 on: June 20, 2011, 07:31:36 AM »

Regarding the ‘Refraction Plane’
Does anyone know how to calculate the shape of the cones on a flat surface?
No doubt it has something to do with Pi but it is a long time since I did geometry at school.
I know it has to be a circular “C” shape.
Smaller diameter:- 24.5 mm. height:- 4.5 mm., and 90 degree cone, i.e. 45 degrees on each side.
I would rather calculate the pattern than “suck it and see”  %)
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Lt. Raen

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Re: Glen's build of an Armidale
« Reply #81 on: June 20, 2011, 08:13:57 AM »

Somebody posted this on the forum a while ago possibly umi but i cant remember

http://www.rocketreviews.com/tool_shroud.shtml

hope it helps

Tim
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Glenedge

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Re: Glen's build of an Armidale
« Reply #82 on: June 20, 2011, 09:11:12 AM »

Nice question Brian

 Thankyou Lt. Raen I will give it a go tonight.

 Glen
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brianB6

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Re: Glen's build of an Armidale
« Reply #83 on: June 20, 2011, 10:15:45 AM »

Thanks for that.
Seems to work fine.
Only one very small  {-) problem.
I cannot measure to the 15th. decimal place of a millimetre.  <:(
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Glenedge

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Re: Glen's build of an Armidale
« Reply #84 on: June 21, 2011, 09:17:36 AM »

HI all
Gave the shroud calculator a go and the it seems to work, just cutting it out with scissors is a bit rough but the idea works.  :-)
The guys at work should have one machined up by friday so see how that turns out!




  Steve I would be very interested to see your RHIBs and gun when they are done.

  Glen
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Glenedge

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Re: Glen's build of an Armidale
« Reply #85 on: June 23, 2011, 10:53:52 AM »

been working on the bridge windows.






And some sea trials on the real ridecontrol

http://www.youtube.com/watch?v=9FaxOAWwd7A


Glen
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DickyD

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Re: Glen's build of an Armidale
« Reply #86 on: June 23, 2011, 11:22:15 AM »

Coming on nicely.

Wish you blokes would put larger photos on here, even clicking on them doesn't make them much bigger.
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brianB6

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Re: Glen's build of an Armidale
« Reply #87 on: June 23, 2011, 01:06:03 PM »

Those aerials in the background are to big for 1:50 scale!  %)
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brianB6

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Re: Glen's build of an Armidale
« Reply #88 on: June 23, 2011, 01:18:36 PM »

For Dickie
Hopefully this will be large enough.   Sorry about the funny shape but it's the 161 limit.
I have used Perspex for the superstructure which is why it looks so terrible with the protective paper still on.   'The Rat' has progressed from this.
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DickyD

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Re: Glen's build of an Armidale
« Reply #89 on: June 23, 2011, 01:31:35 PM »

Thanks Brian, that's a bit better. :-))
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Peter Fitness

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Re: Glen's build of an Armidale
« Reply #90 on: June 24, 2011, 12:38:07 AM »

Brian, I use a piece of free software called "Light Image Resizer 4", which allows you to resize digital photos to whatever you want. For the forum, I resize them to 800 x 600 which usually keeps them under the 161kb limit, but makes them big enough to be seen clearly. See photo in reply #70 above.

It's available here http://download.cnet.com/Light-Image-Resizer/3000-2193_4-10529104.html

Peter.
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brianB6

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Re: Glen's build of an Armidale
« Reply #91 on: June 24, 2011, 01:42:23 AM »

Hi Peter
At the moment I use Irfan View, but I will try your suggestion.
I think the problem with my last image was all the gravel in the background.
In the meantime I have managed to connect all the Aft Mast lights, despite a couple of dry joints (my father would have been horrified at my efforts. My excuse is that they are very fine wires and it is a very small space. <*< )
Um! Fishing and towing the RIB?
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Peter Fitness

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Re: Glen's build of an Armidale
« Reply #92 on: June 24, 2011, 06:59:16 AM »

It's looking great, Brian :-)) What thickness perspex are you using for the superstructure?

Peter.
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brianB6

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Re: Glen's build of an Armidale
« Reply #93 on: June 24, 2011, 07:58:12 AM »

Hi Peter
1.5 mm. for the main Bonnet, Mast, Decks etc. but 2.5 for the Bridge walls as this was the thinnest I could obtain tinted to a dark colour.   I will simply paint the bridge using the paper covering as masking and then remove the paper which, hopefully, will reveal the dark glazing.
I know it is much heavier than styrene but there is not much bracing needed.
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Glenedge

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Re: Glen's build of an Armidale
« Reply #94 on: June 24, 2011, 08:12:18 AM »

Very nice brian but!!!
  the yellow stern tow light has been moved to the ensign staff in a double fitting with the aft anchor light. What is the white light at the top of the mast? There is a flood light at the top for when they are at anchor and another floodlight down lower which is an emergency light.

 Here is a pic of the ensign staff showing, the very top light is the aft anchor light,(white all round) under it is the sterntow yellow light and at the bottom is the double stern light (white) Pic taken today. And it is all on the centreline now. I think Armidale originally had it to one side.




Was that busy at work today managed to cut out most of my windows and went to the local hobby shop and discussed tinted windows, I will be trying some clear perspex with a smoke paint like they use on the helicopters in the store so looking forward to see how it goes.

  Glen

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brianB6

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Re: Glen's build of an Armidale
« Reply #95 on: June 24, 2011, 08:52:12 AM »

One of the problems seems to be modelling the boat at a particular date.
I have photos from the net that show the towing light on the mast so I will stick with that position for now.    O'Tooles law dictates that it will clash with the position or design of some other fitting for the rivet counters to complain about.   (O'Tooles law:- 'Murphy was an optimist')
The bit sticking out of the top of the mast is a tube to take a wire to "hopefully" turn the radar.
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Glenedge

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Re: Glen's build of an Armidale
« Reply #96 on: June 24, 2011, 08:58:48 AM »

 Hi Brian
 yeh I suppose pick a period(year) and build it, so I shouldnt tell you they have modified the aft transom platform because they keep pranging the RHIBs!!!! ;)
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brianB6

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Re: Glen's build of an Armidale
« Reply #97 on: June 24, 2011, 10:50:07 AM »

Aghhhhhhhhh!  <:( <:(  >>:-(   My next boat will be freelance to my own design.
Another photo for Dickie
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DickyD

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Re: Glen's build of an Armidale
« Reply #98 on: June 24, 2011, 02:38:29 PM »

Thanks Brian  :-))
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Glenedge

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Re: Glen's build of an Armidale
« Reply #99 on: June 24, 2011, 09:47:46 PM »

Brian
The middle NUC lights have actually got a smoked lens on them, if you could do that it may cut down on the brilliance of the LED!!!! Just a thought.

Glen

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