Topics in Category: Construction Techniques & Aeromodelling Materials.

emo
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Replies: 12
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Tony B's Avatar
Topic started 20 May 2014 21:06 by Tony B
Dear people. i am looking for a cheap supplier of depron and some advice on using it. thank you Tony Bennett.
Tony B's Avatar
Last Post by Tony B 23 Apr 2015 21:14
hello John. nice to have you here. welcome. tony.
emo
Views: 68
Replies: 4
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Klipkopwildlife's Avatar
Topic started 26 Mar 2018 18:59 by Klipkopwildlife
Anybody have any bright ideas for gluing carbon fibre to balsa or light ply, I've tried Aliphatic and Cyano without success. I have to admit that I haven't prepared the CF surface in any way, it looked to be clean.
one tenor's Avatar
Last Post by one tenor 26 Mar 2018 21:26
I would have mentioned Hysol but thought it too dear. www.google.co.uk/search?q=hysol+9394&oq=...ceid=chrome&ie=UTF-8
emo
Views: 197
Replies: 13
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Klipkopwildlife's Avatar
Topic started 06 Feb 2018 09:00 by Klipkopwildlife
There's a bewildering amount of glue types around today, 50 years ago we had Balsa glue or Cascamite (remember that? A white powder that you mixed with water) What I want to know (honesty is required please) how much of your glue gets wasted and how much ends in the model? I reckon at least 25% of...
Flytilbroke's Avatar
Last Post by Flytilbroke 10 Feb 2018 19:11
Epoxy, UHU Por, PVA, Cyano. Likely at least 50% in bin. Mix residue and gone off in container are the main reasons for waste.
emo
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Replies: 1
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Ralpharr2001's Avatar
Topic started 17 Dec 2017 18:54 by Ralpharr2001
Well my 3D printer finally arrived from China. I wasn't sure what to expect by way of quality but have been pleasantly surprised. It arrived in a very sturdy box with each packed into special foam compartments. No damage whatsoever. It came with a very comprehensive tool kit including side cutters,...
Tony B's Avatar
Last Post by Tony B 17 Dec 2017 19:17
welcome to the fraternity of 3d printers. :) say goodbye to any free time now as this becomes a little bit obsessive. he he he you will find that you would rather spend more time designing and printing a part than you would normally spend actually making the part by hand. BUT and it is a big...
emo
Views: 258
Replies: 10
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Paul H's Avatar
Topic started 19 Nov 2017 12:47 by Paul H
Hi I am hoping a forum member will be able to point me in the right direction please. I am currently building a Sopwith Pup and have a paint sample of PC10 as used by the Shuttleworth Collection. Does anyone know of a supplier who can match the sample I have in an acrylic suitable for airbrushing....
one tenor's Avatar
Last Post by one tenor 24 Nov 2017 23:41
Could you not use diluted celly or enamel Paul John O/T
emo
Views: 237
Replies: 3
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THE BLACKBIRD's Avatar
Topic started 13 Nov 2017 12:59 by THE BLACKBIRD
This is how i do my outer tubes, i buy the ally tube from my diy shop, better than paying £26 plus a lot of postage to get them here, First i spiral wrap brown parcel tape sticky side up along the tube, just a little longer the you need, i hold it in position with a small bit of tape... [attachment] When i reach...
Andy Sephton's Avatar
Last Post by Andy Sephton 14 Nov 2017 07:49
Thanks for posting that BB, it's a great example of modelling technique. It's posts like that that make this Forum what it is, and also make it stand apart from other mass media. There's nothing more to say! ;) ;)
emo
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Replies: 9
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Andy Sephton's Avatar
Topic started 03 Nov 2017 13:31 by Andy Sephton
I've successfully used a Craft Robo cutter plotter for well over 10 years to cut masks, decals and stickers. The Fury mass build on RCM&E has prompted me (given me the excuse ;) ) to upgrade the A4 Craft Robo to a new A3 size Silhouette Cameo 3. At least one other Forum member has one, so I thought...
one tenor's Avatar
Last Post by one tenor 05 Nov 2017 19:01
Nice work and a good idea . Maybe wheel blanks done in layers stuck together and sanded to shape.too.
emo
Views: 197
Replies: 1
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Quorneng's Avatar
Topic started 06 Oct 2017 16:53 by Quorneng
Most EDF installations require some sort of inlet and exhaust ducting, particularly if it is placed in a scale plane fuselage. Most EDFs have relatively large hubs of sufficient diameter to cover the motor. This situation tends to worse if an out runner motor is used where the motor bell is...
Quorneng's Avatar
Last Post by Quorneng 08 Oct 2017 15:27
Happy that a lightweight printed EDF thrust tube was possible I started looking round for potential applications. I noticed that the exit of the RR Trent on the Airbus A350 looked quite like the tail end of the 50 mm EDF I already have. [attachment] A small thrust tube and a motor cone gives quite a...
emo
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Replies: 0
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Mike Rolls's Avatar
Topic started 24 Apr 2017 12:05 by Mike Rolls
I was very surprised to read in the current Aeromodeller Mike Woodhouse's comment that folk find difficulty in getting F1B models down to near the minimum weight (230 g). Casting one's mind back to when F1B was 'Wakefield' the majority of folk were aiming at an airframe weight of no more than four...
emo
Views: 208
Replies: 2
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discus.fly's Avatar
Topic started 15 Apr 2017 18:09 by discus.fly
How does one apply vinyl transfers? Graphics I have purchased are printed on Ritrama paper which has three layers. A thick backing paper with alignment marks, the vinyl graphic and then a thin semi transparent outer sheet. Assuming one peels off the thick backing and apply the graphic to the model...
Tony B's Avatar
Last Post by Tony B 15 Apr 2017 20:47
That's about right discus. it's how i do it. Tony B
emo
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Replies: 33
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Andy Sephton's Avatar
Topic started 18 Feb 2015 21:55 by Andy Sephton
This one started in the chat room, so rather than loose the info I've put it in a thread: - Flytilbroke came up with a comment that he uses old CDs and DVDs as mixing plates for glues, etc. I've done the same and I use old knife blades to do the mixing, leaving them to dry in the glue after use for...
THE BLACKBIRD's Avatar
Last Post by THE BLACKBIRD 21 Feb 2017 18:57
Very neatly done Sir
emo
Views: 845
Replies: 15
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Tony B's Avatar
Topic started 01 Feb 2015 17:34 by Tony B
Now this is my method, whether it is the correct way or not does not matter, it works fine for me. First job is to select a good picture from the internet of your chosen aircraft. then print it out onto A4 paper. I have chosen the KK Caprice as it is a model i want to build at some point. Once...
Tony B's Avatar
Last Post by Tony B 06 Feb 2017 16:53
but this site won't load "heavy" pictures. i have to take them like this so that the editors can play with them. so i have to host them on photobucket and upload them as linked to there. hey ho pip and dandy. Tony B
emo
Views: 725
Replies: 25
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Ralpharr2001's Avatar
Topic started 09 Jan 2017 23:03 by Ralpharr2001
Need some guidance guys. I am having a blond moment. I am building a 64" Curare from the outerzone plan - www.outerzone.co.uk/plan_details.asp?ID=5527 . Yes I know I should be getting on with the Gannet but I just wanted something quick to build. :evil: The plan states 1 degree positive...
Garry Pollard's Avatar
Last Post by Garry Pollard 11 Jan 2017 23:31
Had one of those days, however have taken a couple of photos, I think [attachment] [attachment] Note to myself, must do better lol Garry
emo
Views: 538
Replies: 10
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Andy Sephton's Avatar
Topic started 24 Nov 2016 10:50 by Andy Sephton
Following a side conversation and request from Septic, the following shows the steps I go through to create printed tissue for use on models. The technique can be applied to other media, but in all cases, I take no responsibility for the mess you make of your printer... ;) ;) You will need: -...
one tenor's Avatar
Last Post by one tenor 25 Nov 2016 13:11
Thanks Andy Really useful to know.
emo
Views: 484
Replies: 11
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THE BLACKBIRD's Avatar
Topic started 16 Nov 2016 09:38 by THE BLACKBIRD
Yesterday I thought I would make a vac forming thingy So had a look at the scrap wood from the SR71 coffin and wire from the fence and abit off the back of my band saw for connecting the hoover [attachment] [attachment] It has to be 650mm long and 400mm wide for the canopy on the A10...
THE BLACKBIRD's Avatar
Last Post by THE BLACKBIRD 21 Nov 2016 19:41
Had a boring half hour with a piece of 5mm ply [attachment] Fixed it in place of the wire mesh [attachment] Just laid a sheet of acetate on it with the frame loosely laid on and got a good vacuum [attachment] With no sagging of the ply
emo
Views: 246
Replies: 2
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Andy Sephton's Avatar
Topic started 11 Nov 2016 14:55 by Andy Sephton
There's at least two of us on the Forum that use the Craft Robo cutter/plotter to define complex shapes and cut masks/decals/etc from various materials. I've referred to it in at least one of my threads, as has Septic in his Scale Indoor RC Cub build. I've started this thread as a development of...
Andy Sephton's Avatar
Last Post by Andy Sephton 11 Nov 2016 18:40
I can't see a defined angle, but sizing is not an issue. The following two pictures are screen shots of a line and a box - I've had to draw one 'end' of them 'off screen' in order to make a screen shot possible, but hopefully the message is clear. Both the vertical and horizontal distances are...
emo
Views: 353
Replies: 3
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Andy Sephton's Avatar
Topic started 06 Sep 2016 12:53 by Andy Sephton
I was asked by martini in my Avetek Tiger Moth thread which airbrush book I used, so I thought it might be worthwhile starting a separate airbrush thread here. Feel free to add any snippets on techniques, etc as you see fit. I bought my first Airbrush second hand in 1995 when I started building...
Eric's Avatar
Last Post by Eric 06 Sep 2016 19:33
I have an assortment of airbrushes, a compressor and reservoir tank, that I've never used (yet!) that came to me from a now deceased friend. I have some destruction books, intended for railway modelling, but the same principles apply - Airbrushing for railway modellers - George Dent - - isbn 978...
emo
Views: 320
Replies: 7
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box's Avatar
Topic started 06 Jun 2016 10:53 by box
Does such a thing exist and if so, what make and where from please? I am banished from the house if I am usung the smelly stuff and have to do it outside. On a chilly day, this of course affects the hardening time and so delays the build. I don't use it that often, but do find it quick and useful...
box's Avatar
Last Post by box 07 Jun 2016 21:31
Sorry for delay, I've just been away for a little while. The two types I have been using are Cyberbond and NHP (Northeast Hobby Products) and believe me, they do stink. I will now try some of your suggestions and see what reaction, if any, I get from my Wife! Thanks for the help. box.
emo
Views: 863
Replies: 10
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Andy Sephton's Avatar
Topic started 12 Jan 2016 18:19 by Andy Sephton
This one's for Ralph! I'm currently re-covering my Gloster Gannet. The initial covering job went disastrously wrong when the paint I used proved to be incompatible with the dope! The main build thread covers the issues and probs so far, but as Ralph requested a covering thread, I thought I'd put...
Andy Sephton's Avatar
Last Post by Andy Sephton 17 Jan 2016 13:38
There was probably nothing wrong with your methods Garry, but thanks for the kind words anyway! In most cases, getting it 'right' is a simple matter of knowing how to solve the probe when it goes wrong....... which leads me to more technique: Sanding off the excess tissue often leaves a feathery...
emo
Views: 363
Replies: 1
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one tenor's Avatar
Topic started 29 Jun 2015 04:04 by one tenor
I read somewhere that someone was using a quite pricey kit for gap filling with Cyano. No need for that . I use BICARBONATE OF SODA. I sense puzzled looks at this point ,but yes soda bic. What the yanks call baking soda ( not our baking powder, ALTHOUGH that might work too ) The Method is to...
Mowerman's Avatar
Last Post by Mowerman 29 Jun 2015 10:23
With my building skills I often have gaps to fill, I use balsa dust (collected when sanding ) and cyano as above.
emo
Views: 714
Replies: 1
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Tony B's Avatar
Topic started 08 Feb 2015 20:11 by Tony B
Covering a depron model with brown paper and pva. Well you have built your nice new depron model and it is looking very pretty, but what do you cover it with to protect it from the dreaded hanger rash, hmm. There are a few choices of covering that can be used :- Tissue and a water based sealer....
Garry Pollard's Avatar
Last Post by Garry Pollard 08 Feb 2015 20:19
Brilliant Tony, well presented and explained . You are very good at this, I think several mags could do worse than letting you do a regular column . Garry
emo
Views: 953
Replies: 1
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Tony B's Avatar
Topic started 05 Feb 2015 21:37 by Tony B
This was going to be an article in rc model flyer magazine, but as we all know the magazine folded. :( Depron. Have you ever used it. Have you ever thought of using Depron foam for large sized models, by large sized I mean models of over 48 inch wingspan. The thought of using Depron as a building...
blue123's Avatar
Last Post by blue123 06 Feb 2015 11:53
[attachment] [attachment] Great work Tony, good read
emo
Views: 1550
Replies: 19
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alan cantwell's Avatar
Topic started 06 Apr 2014 11:29 by alan cantwell
Following on from a chat room chat about the design of this models under cart mount and spring system, The problem with this design is, the torque rods a large diam, and tooooooo short, A torque rod system works well with length, the shortness of this version makes it too rigid, resulting with a...
The Beard's Avatar
Last Post by The Beard 08 Apr 2014 00:02
I remember Alan and you deserve to pull it apart it should be sand there attitude stinks.However evry report of a model Ive built has been correct .I think ive been lucky sand picked up on the bad ones.However I was surprised hoew easily my Hanger 9 under carriage came off and my Blackhorse Travel...
emo
Views: 573
Replies: 2
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Warren2i's Avatar
Topic started 17 Mar 2014 20:47 by Warren2i
Plastisteel will change the way you make parts. It’s a commercial grade thermoplastic that softens enough to be formed into any shape at around 62 – 65 C. You simply heat the pellets in hot water or with a hair dryer. It hardens at room temperature to form a tough plastic material similar in...
Eric's Avatar
Last Post by Eric 18 Mar 2014 13:07
Nothing new about this material - it's been around for about ten years, under various names. I've seen it used for making temporary nuts or bolts, as a get-you-home fix, or an instant door-key, when the one you have has snapped (typically a Yale!) It can be stuffed into an over-sized hole, then...
emo
Views: 767
Replies: 9
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Geoff dales's Avatar
Topic started 07 Feb 2014 19:49 by Geoff dales
I've picked up a big box today containing a blackhorse Macchi :woohoo: . It's a lovely built thing and well covered but it's shiny :( . Now I want to Matt it down I'm thinking satan fuel proofer now do I use some form of spirit wipe first or will that damage the covering or do I flat slightly with...
alan cantwell's Avatar
Last Post by alan cantwell 08 Feb 2014 15:07
NO PROBLEM, all it took was some detective work, i knew folk who knew, simples :)
emo
Views: 693
Replies: 4
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Dean M's Avatar
Topic started 25 Nov 2013 11:03 by Dean M
I'm not sure if I have asked this before. On my Kavalier somehow I managed to mount the engine a lot further forward than what is on the plans! Will this have any detrimental effects? I need to make a balsa cowl which I was going to do after I had maidened it but the firewall will be covered in...
Eric's Avatar
Last Post by Eric 26 Nov 2013 21:47
There's always that! :P You can always cheat, and add a sub-fin, or make a strake a bit bigger!
emo
Views: 2683
Replies: 30
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Keith T's Avatar
Topic started 20 Aug 2013 11:16 by Keith T
Guys I am starting the build of my spitfire (ARTF) and have some servo-less retracts arriving today. I removed the covering from the wheel recesses and the section that the retracts fit into is made of balsa! The 4 screws that will hold the units actually screw into balsa :huh: Is that a total...
Keith T's Avatar
Last Post by Keith T 25 Aug 2013 18:42
Thanks Dean - my first ever attempt at something like this. I'm actually really loving it. Once I get the build fully underway, I'll perhaps start a thread about it. HF
emo
Fitting cowls
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Views: 4159
Replies: 15
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Dean M's Avatar
Topic started 14 Jun 2012 19:28 by Dean M
I am getting to a point with the Deagostini spitfire of trial fitting the engine cowl, It uses self tappers through the cowl into some wood but i find the screw heads look a bit ugly is there a way to hide them?, paint them? or use a different method? This is also something I am thinking about for...
Grumpy42's Avatar
Last Post by Grumpy42 11 Jun 2013 10:24
Cowl - noun. An infuriating object that takes hours to construct. Once completed in all it's pristine glory it will steadfastly refuses to fit. Once it IS fitted all attempts to remove it, access the needle valve or any other part of the carburettor will not work. WARNING - trying to tighten engine...
emo
Views: 1466
Replies: 8
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Tony B's Avatar
Topic started 28 May 2013 22:37 by Tony B
hello. I am going to experiment with a part built balsa wing i have to see how strong a traditional wing will be with a depron skin over balsa ribs and spars. the reason for this is that i am looking for ways to be able to continue building larger models without breaking the bank financially. so i...
Quorneng's Avatar
Last Post by Quorneng 29 May 2013 14:37
Depron has a strength to weight ratio similar to balsa but it is rather more flexible. So two geometrically similar structures of the same weight might carry the same load but the Depron one would bend rather more doing it. As Depron is a lot lighter than balsa it is more suited to the smaller end...
emo
Views: 868
Replies: 11
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Klipkopwildlife's Avatar
Topic started 17 May 2013 13:22 by Klipkopwildlife
I have a problem! No Phil not that kind of problem! :) Modern petrol or diesel weed wackers, strimmers, call them what you will, have a plastic fuel tank. Due to poor handling techniques, (mostly 'don't give a shit') and despite copious retraining, I have 2 fuel tanks that are cracked, and are...
Garry Pollard's Avatar
Last Post by Garry Pollard 18 May 2013 12:38
The above two posts are the reason I use the epoxy system. Once bitten twice shy Garry
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