Brother Melice Posted September 19, 2011 Share Posted September 19, 2011 it looks great, keep going!!!! Link to comment Share on other sites More sharing options...
.Torch. Posted September 19, 2011 Share Posted September 19, 2011 Wow, the led engines sound awesome! Link to comment Share on other sites More sharing options...
Blackadder Posted September 21, 2011 Author Share Posted September 21, 2011 Before I get too deep into the aft end of the hull I'd better show where I'm starting from. Since last seen I lopped off about 4 cm and added 0.5 mm sheeting to both sides where the wings mount. Also 0.5 mm to the bottom of the hull to provide a base to glue to. I also added a top 2.0 mm sheet to the unfinished superstructure aft end as I am fairly certain that this is the length I shall go with. http://i.imgur.com/lrtU4l.jpg The tail base is truncated and it appears I have the correct angle but I'll have to build it to be certain. -- E. Blackadder Link to comment Share on other sites More sharing options...
BrotherSargeantDaro Posted September 21, 2011 Share Posted September 21, 2011 Looking impressive! The persistence is admirable. Question, What are you using as the skeleton for the interior? And what particular brand of Plasticard do you use? I am sure you've been asked this before though. Apologies for the inconvinience! Keep the good work up! Link to comment Share on other sites More sharing options...
Blackadder Posted September 21, 2011 Author Share Posted September 21, 2011 Looking impressive! The persistence is admirable. Question, What are you using as the skeleton for the interior? And what particular brand of Plasticard do you use? I am sure you've been asked this before though. Apologies for the inconvinience! Keep the good work up! No apology necessary, the reason for all of my threads is to share knowledge and techniques. The crude interior framework is 1/4 inch foam filled poster board for strength covered with 0.5 mm "Evergreen" brand styrene held in place with "Locktite" 5 minute plastic epoxy to provide a base to glue the detail on. I use 0.5 mm 1.0 mm 1.5 mm and 2.0 mm sheet styrene for the various plates. Three manufacturers in the states are Evergreen, Midwest and Plastistruct; all about comparable in price but I primarily use Evergreen because of local availability. I use Testors model cement and Ambroid Proweld thin cement which actually melts and fuses the styrene together. Link to comment Share on other sites More sharing options...
Blackadder Posted September 23, 2011 Author Share Posted September 23, 2011 The rough cutout for the air brake panels interior detail. http://i.imgur.com/ZRVgIl.jpg http://i.imgur.com/7T2cFl.jpg Link to comment Share on other sites More sharing options...
Redfinger Posted September 23, 2011 Share Posted September 23, 2011 This is outstanding work!! I have been thinking for years now how to scratch build a Thunderhawk, and in all my planning I get hung up on the engines. I see that you used PVC pipe, but what did you use for the cowling of the engine to make the curves? Also, did you just pull your dimensions from the 3D images to create a pattern for this new version of your Thunderhawk? Ashton Link to comment Share on other sites More sharing options...
Blackadder Posted September 23, 2011 Author Share Posted September 23, 2011 .........I get hung up on the engines. I see that you used PVC pipe, but what did you use for the cowling of the engine to make the curves? Also, did you just pull your dimensions from the 3D images to create a pattern for this new version of your Thunderhawk? I used a table top belt sander for the external contours and a Dremel rotary file/rasp for the inside contours. after the rough cutting, the PVC can be polished smooth with progressively finer "wet" sandpaper. I'm working exclusively from the 3D rendering no plans or patterns. I use my photo editing program to scale the drawings to the proper size and take measurements directly from the screen. Close enough for g'ment work. ;) I'll be starting on the engines once I have the wings installed. they're just roughed in right now. Link to comment Share on other sites More sharing options...
Blackadder Posted September 23, 2011 Author Share Posted September 23, 2011 Buildup of the airbrake internal compartment: http://i.imgur.com/Jmi2Nl.jpg -- E. Blackadder Link to comment Share on other sites More sharing options...
Grotsmasha Posted September 23, 2011 Share Posted September 23, 2011 Firstly, I've been stalking this thread, haven't posted because someone always asks my questions first....I love it, and cant wait to see the finished product. I understand that your an EXCELLENT scratch builder, but for the engines, I'd like to put forward the idea I've struck upon for when construction of my TH gets underway, as I'm not any good as a scratch builder and am more of a converter/kit basher. Really this pic just shows size, all it is, is a pair of Storm Raven engines end to end. And it really is just a suggestion to help, as I really believe you'll probably scratch something better anyway..... Link to comment Share on other sites More sharing options...
Blackadder Posted September 23, 2011 Author Share Posted September 23, 2011 Firstly, I've been stalking this thread, haven't posted because someone always asks my questions first....I love it, and cant wait to see the finished product. I understand that your an EXCELLENT scratch builder, but for the engines, I'd like to put forward the idea I've struck upon for when construction of my TH gets underway, as I'm not any good as a scratch builder and am more of a converter/kit basher. Really this pic just shows size, all it is, is a pair of Storm Raven engines end to end. And it really is just a suggestion to help, as I really believe you'll probably scratch something better anyway..... I appreciate the info but I consider buying major components cheating, I let using bitz slide but I think I can build reasonable engines from scratch plus the Raven engines look a bit too small in diameter and length. Plus I want to install LED high intensity light in the engine afterburner for effect. Possibly with a pulse circuit. Anyone have a cheap pulse circuit schematic? Link to comment Share on other sites More sharing options...
Targol Posted September 23, 2011 Share Posted September 23, 2011 Man, you're crazy ! But that's the kind of craziness that make all go further ! I'm really astonished by your sense of details. Link to comment Share on other sites More sharing options...
Blackadder Posted September 24, 2011 Author Share Posted September 24, 2011 The compartment walls complete, I still haven't figured out the brake hinge my original idea of a plastic rod, then steel rod, have given way to a much more durable torque tube assembly which is probably how I shall go. Time enough for that when I get the empennage skinned. http://i.imgur.com/PJxuAl.jpg -- E. Blackadder Link to comment Share on other sites More sharing options...
Blackadder Posted September 24, 2011 Author Share Posted September 24, 2011 Way back when I first started this project and was attempting to save what I could of the foam core I found that the faceted rear of the hull just didn't look right. Try as I might there was something wrong and fortunately I scrapped the endeavor and started anew. It seems there is a bit of a jog in the hull aft of the airbrakes. Just a centimeter change with a filler angle which makes all the difference. http://i.imgur.com/ZRVgIl.jpg The shading of the 3D rendering is so subtle that I never noticed it. but I believe I am on the right track now. In the image below you can see what I missed installed on the model and on the cutting board the opposite piece. Now the facets should look reasonable better. http://i.imgur.com/StaPJl.jpg E. Blackadder Link to comment Share on other sites More sharing options...
Blackadder Posted September 25, 2011 Author Share Posted September 25, 2011 Well the good news is that both sides match to within the thickness of a sharp pencil line. The bad news is if this tail section isn't right I'm out a lot of work. I'll be installing the rear 45° slab later as soon as the current glue dries a bit but it looks like I might get away with out having to sand the facets. It's amazing that the 3D model was correct and all these angles appear to be necessary. http://i.imgur.com/ZRVgIl.jpg A word of thanks to my unknown benefactor. http://i.imgur.com/qjWxGl.jpg E. Blackadder Link to comment Share on other sites More sharing options...
Blackadder Posted September 25, 2011 Author Share Posted September 25, 2011 You know some of us aspire to greatness even though we are not qualified and some of us have greatness thrust upon us although we are not qualified. I would rather seek my level of competence and not transcend it and enjoy the accolades of my peers. Damn it worked and I am fit to burst with unbounded joy that this portion is done. I have been avoiding this for weeks because I knew the problems entailed but it seems to have come out okay. The tail faceted section works and less than a fraction of a mm off. http://i.imgur.com/B4u5cl.jpg http://i.imgur.com/MhByMl.jpg E. Blackadder Link to comment Share on other sites More sharing options...
arizonajirt Posted September 26, 2011 Share Posted September 26, 2011 You my friend are a God among Men. I could never create this work of art. Link to comment Share on other sites More sharing options...
Blackadder Posted September 27, 2011 Author Share Posted September 27, 2011 Thunderhawk Chapters, I have no idea. I was thinking beige and jungle green camo with pale blue tinted under belly What chapter would that be? Or perhaps this scheme on a transport that zipped by my trench the other day: http://i.imgur.com/5MAB3l.jpg At any rate DAMN this beastie is long, http://i.imgur.com/rEspxl.jpg 26 inches without the exhaust nacelle of the middle engine or 66.04 cm for those of you who have not come to appreciate the utility of the Imperial measuring system. :blink: And I loped off a few CM because it looked too long to me. Link to comment Share on other sites More sharing options...
Blackadder Posted September 29, 2011 Author Share Posted September 29, 2011 Wow, the LED engines sound awesome! I was rather hoping someone would offer a schematic for a pulsing or chasing LED circuit. The Blackadder no electrical engineer he. :devil: Link to comment Share on other sites More sharing options...
Lord_Mephistopheles Posted September 30, 2011 Share Posted September 30, 2011 Wow, the LED engines sound awesome! I was rather hoping someone would offer a schematic for a pulsing or chasing LED circuit. The Blackadder no electrical engineer he. :) Nor am I, but I did some of the legwork in finding a decently-useful looking couple of links... http://metku.net/index.html?path=mods/colorfade/index_eng http://www.jensign.com/opto/ledlaserdrivers/index.html Only thing is, engines tend *NOT* to actually pulse - at least not slowly enough for the human eye/brain to really process it. Imagine being in a car that is being driven by the driver continually 'pulsing' the throttle as you jerk your way down the road... :D Having just a single light pulsing would look a bit odd I think. Might be worth putting an LED in that is constantly 'ON', possibly with a diffuser, and using a second one of perhaps a different colour and slightly lower brightness to 'pulse' to add a bit of life and interest? Just a thought. Link to comment Share on other sites More sharing options...
Blackadder Posted September 30, 2011 Author Share Posted September 30, 2011 Thanks, I saw some circuits on that order as well; I appreciate the effort. while we are on the subject of pulsing the Vengeance weapon 1 AKA V1 Buzz Bomb pulsed. The exhaust appeared as a visible series of fireballs strung out and actual made an audible pulsing sound hence the name Buzz Bomb Of course that was a ram jet but a turbine exhaust really doesn't show much except on a dark night and it just mainly glows dull red. Link to comment Share on other sites More sharing options...
Lord_Mephistopheles Posted September 30, 2011 Share Posted September 30, 2011 Yeah, the V1 Doodle-bug did have a pulse-compression engine, forgot about that. I just get the idea that a pulsing engine like that wouldn't be optimum for something like a Thunderhawk - there's a reason something similar isn't used on 747's!. Bear in mind it's those same engines that propel the thing in space as well, so we're probably not talking about a boggo Rolls-Royce turbofan! Obviously it's your model, and do whatever you're happiest with, but I thought the 2-LED approach with one constantly on and the other pulsing might give a more realistic and pleasing effect. From a technical point of view, something like this: http://en.wikipedia.org/wiki/Aerospike_engine seems like it should work. Link to comment Share on other sites More sharing options...
Blackadder Posted October 1, 2011 Author Share Posted October 1, 2011 Department of one step forward and two back. Discovered an error in my building of the air brake panel recess. Had to tear it out and redo it. Two days and I'm back to where I was two days ago. but the cavity looks a lot better and that's what counts. The slightly insane Blackadder http://i.imgur.com/3aHyRl.jpg Note that the recess is now lined with 0.10 x 0.250 inch strips and the inner wall echoes the outer shape of the superstructure. You don't? well no one else would have either and I just pissed away my time rebuilding that which no one would have noticed anyway. -- E. Blackadder Link to comment Share on other sites More sharing options...
Kisada Posted October 1, 2011 Share Posted October 1, 2011 The slightly insane Blackadder Genius is often mistaken for insanity by those who cannot think at that superior level ... And you sir are genius! Can't wait to see the final product. Link to comment Share on other sites More sharing options...
Blackadder Posted October 1, 2011 Author Share Posted October 1, 2011 Whoa! Genius! Right up there with Einstein and Plank laudable company indeed. Another peek into the skunk works. Out of this hodge podge of scribbles I hope to extract a semblance of order and replicate the internal plumbing. http://i.imgur.com/fibPPl.jpg http://i.imgur.com/raDsol.jpg I hope I have enough scrap tubing. -- E. Blackadder Link to comment Share on other sites More sharing options...
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