Ashley Warnes 1 Posted June 18, 2013 Share Posted June 18, 2013 I am looking at scratch building an electric balsa wod plane, with the plans from **LINK**, and was wondering how the control surfaces are attached. Being a complete beginner I have no idea except what I have seen online about hinges?????? Please can someone help Thanks Ashley Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted June 18, 2013 Share Posted June 18, 2013 As its wood, I think its prob best to use a proper pinned hinge from the likes of Kavan etc. Glue them in with pva or epoxy, or even cyano - first smearing vaseline on the actual hinge line. Quote Link to comment Share on other sites More sharing options...
Ashley Warnes 1 Posted June 19, 2013 Author Share Posted June 19, 2013 thanks for this tim, also how do the servos wrok and how do you connect them to the control surfaces? Quote Link to comment Share on other sites More sharing options...
Andy Green Posted June 19, 2013 Share Posted June 19, 2013 Hi Ashley Take a look at this article for more info on hinges. Andy Quote Link to comment Share on other sites More sharing options...
Ashley Warnes 1 Posted June 19, 2013 Author Share Posted June 19, 2013 I just printed out the plans, link above, and found they had come out as 2 A4 pages ( 1 per section-wings and fuselage). Does anyone know how to print them out bigger, 200% of original, so I would have 2 A4 pages for each section? Thanks Ashley Quote Link to comment Share on other sites More sharing options...
Olly P Posted June 19, 2013 Share Posted June 19, 2013 That looks quite nice - and scaleable to suit indoor by the looks of it too.... ah well, another one on the consider for future list. regards scaling it, it depends on your printer and set up, but an easy way is to save it to a USB device and take it to a local printers, they should be able to scale PDF files to any size. Quote Link to comment Share on other sites More sharing options...
FlyinBrian Posted June 19, 2013 Share Posted June 19, 2013 Posted by Tim Mackey on 18/06/2013 21:34:13: As its wood, I think its prob best to use a proper pinned hinge from the likes of Kavan etc. Glue them in with pva or epoxy, or even cyano - first smearing vaseline on the actual hinge line. Re vaseline on the hinge line. Best way to do this is to fill an egg cup with boiling water then put a little - 1/2 tsp of vaseline in it, the vaseline will melt and float on top. Bend the hinge back and dip only the actual hinge line into the melted vaseline then lay on tissue till needed. Alternatively you could use the furry mylar "cyano hinges" Quote Link to comment Share on other sites More sharing options...
Andy Green Posted June 19, 2013 Share Posted June 19, 2013 Hi Ashley - try this article on plan printing. Andy Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted June 19, 2013 Share Posted June 19, 2013 Posted by FlyinBrian on 19/06/2013 09:25:56: Posted by Tim Mackey on 18/06/2013 21:34:13: As its wood, I think its prob best to use a proper pinned hinge from the likes of Kavan etc. Glue them in with pva or epoxy, or even cyano - first smearing vaseline on the actual hinge line. Re vaseline on the hinge line. Best way to do this is to fill an egg cup with boiling water then put a little - 1/2 tsp of vaseline in it, the vaseline will melt and float on top. Bend the hinge back and dip only the actual hinge line into the melted vaseline then lay on tissue till needed. Alternatively you could use the furry mylar "cyano hinges" I like the floating vaseline idea Quote Link to comment Share on other sites More sharing options...
SDF Posted June 19, 2013 Share Posted June 19, 2013 I like sewn hinges, cheap to make and very low friction. Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted June 19, 2013 Share Posted June 19, 2013 Posted by Ashley Warnes 1 on 19/06/2013 08:20:49: thanks for this tim, also how do the servos wrok and how do you connect them to the control surfaces? Servos are like mechanical arms, that push pull control surfaces via rods, or sometimes cables. Heres some illustrations of control rods, and clevis' which can be used to connect the rods to the servos, or control surface "horns". As with most things, there's different ways of achieving the end results required, and everyone has their own favourite way of doing things. It sounds from your questions that you may do well to seek out a friendly experienced modeller who could help explain these basics to you, along with some practical demonstrations. Meanwhile, try googling terms such as "connecting servos to surfaces" etc, there is a wealth of info out there, as well as on this forum. Use the search box at the top of pages. Quote Link to comment Share on other sites More sharing options...
Biggles' Elder Brother - Moderator Posted June 19, 2013 Share Posted June 19, 2013 I agree with Tim Ashley. An hour or two spent in the workshop with an established modeller would answer a lot of question for you. Have you looked to see if there is club near you? If you go to the BMFA club finder page here you should be able to find a club not too far away. Just calling on them, taking a close look at some of the models and having chat will help you. BEB Quote Link to comment Share on other sites More sharing options...
PatMc Posted June 19, 2013 Share Posted June 19, 2013 Refering to the drawing of the model linked in the OP - the tail surfaces are only 1/8" thick. The rudder LE is shown as beveled to hinge from the right side & the elevator beveled to hinge from the top. It looks as if the surfaces are intended to be hinged by the covering material or an adhesive tape such as Diamond tape or Blenderm. IMO centre hinging with "proper" pinned hinges or even furry mylar ones wouldn't be a good idea for this model. Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted June 19, 2013 Share Posted June 19, 2013 Good spot PatMc - confess I never looked at it, just went by the description "balsa wooden model" In that case, I'd go with using the covering film as a sealed hinge system. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.