Rich too Posted October 1, 2019 Share Posted October 1, 2019 Nice progress Adrian. I used the drill method for cutting cowls and always hated the job. All my cowl cutting is done by a Dremel these days - best tool I ever bought, and the cordless version even more versatile you need to get yourself one **LINK** Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted October 1, 2019 Author Share Posted October 1, 2019 Got one, Rich. I just found it in this instance rather fierce even at slower speeds, so I just used it briefly then finished off near the edges with sandpaper. Thanks for the progress comments. It is really a slow job though. Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted October 1, 2019 Share Posted October 1, 2019 Good thinking on the spray job, it a good colour match ? Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted October 1, 2019 Author Share Posted October 1, 2019 Yes, John. It's uncannily precisely the same. I think it comes off the Ford colour catalogue if I remember correctly. Must buy some more of that! Quote Link to comment Share on other sites More sharing options...
cymaz Posted October 1, 2019 Share Posted October 1, 2019 Stunning job on the cowl Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted October 1, 2019 Author Share Posted October 1, 2019 Cheers, Cymaz. Not usually one of my strong suits. Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted October 2, 2019 Author Share Posted October 2, 2019 Ye Gods! This afternoon was a struggle. A 20 minute job took me 2 hours to get right. Furthermore, I have discovered that hole reinforcement ply squares don't stick very well with epoxy to the cowl! Cyano is a better choice so I discovered. Any decided to fit the aileron horns and I am going to fit two servos per wing. Had to search a bit for the servo slots under the film. Sorted out the horns. Now there is not much information as to where to put then other than "close to the hinge" . In the end I measured 1 cms back from the wing trailing edge and 5 mm in from the hinge and just hoped the horn holes will line up with the working surface joining line. Cutting the hole was a real pain as as the aileron is hollow underneath and the horns are hooked over the lite ply spar running through the aileron. The light ply also needs notching to accommodate the horn hooking over it. Not elegant at all! Don't like it! I used Gorilla Glue to stick the horns i anyway. Anyway all glued in and a bolt threaded through to align things up. Looks o, but really time consuming. Edited By Adrian Smith 1 on 02/10/2019 17:16:58 Quote Link to comment Share on other sites More sharing options...
cymaz Posted October 2, 2019 Share Posted October 2, 2019 Won’t the aileron servos have different geometry?? Or am I missing something.....a programmable servo maybe. Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted October 2, 2019 Author Share Posted October 2, 2019 As I understand it, Cymaz, the second servo bay is set higher up to compensate for the tapering slope in the wing trailing edge. This means the distance from the servo arm to the horn is exactly the same. I am using 100mm turnbuckles on all wing servos. The servos will be programmed at the TX which the Futaba 14SG allows me to do. I hope that answers your question or if I am barking up the wrong tree! Quote Link to comment Share on other sites More sharing options...
Rich too Posted October 2, 2019 Share Posted October 2, 2019 It will probably be fine Adrian, but you might want to check that the servos are not fighting each other with an amp meter. Plenty of tutorials on youtube. https://www.youtube.com/watch?v=sscEYl_b5bk Thats why I opted for the electronic method... Edited By Rich too on 02/10/2019 18:59:18 Quote Link to comment Share on other sites More sharing options...
Gary Manuel Posted October 2, 2019 Share Posted October 2, 2019 I can recommend these if you have trouble matching the servos: **LINK** Quote Link to comment Share on other sites More sharing options...
Rich too Posted October 2, 2019 Share Posted October 2, 2019 They look a good option Gary. Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted October 2, 2019 Author Share Posted October 2, 2019 Nice piece of kit, Gary. I am using a 14 channel receiver which I have allocated each aileron servo a channel so hopefully I can servo match at the TX settings menu. I will try that first rather than stump up in excess of €100+ just yet for two Micromatch units and a BlueCom adapter. Quote Link to comment Share on other sites More sharing options...
Rich too Posted October 3, 2019 Share Posted October 3, 2019 Mmm, for that sort of money and convenience I think I prefer the X24 option that I went for ..... Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted October 3, 2019 Author Share Posted October 3, 2019 Remind me,Rich so I can check it out where got the X24 unit and it’s full name. I saw a link to it somewhere, but I am blowed if I can find it! Thanks. Quote Link to comment Share on other sites More sharing options...
Rich too Posted October 3, 2019 Share Posted October 3, 2019 Here you go **LINK** Not too cheap, but very simple to use, flexible and many features. Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted October 3, 2019 Author Share Posted October 3, 2019 cheers Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted October 3, 2019 Author Share Posted October 3, 2019 Gary I have sent you a PM relating to the MicroMatch. Thanks Quote Link to comment Share on other sites More sharing options...
Gary Manuel Posted October 3, 2019 Share Posted October 3, 2019 See my reply to your PM Adrian. Quote Link to comment Share on other sites More sharing options...
Rich too Posted October 3, 2019 Share Posted October 3, 2019 What’s the verdict ? Are you using twin rudder servos? Edited By Rich too on 03/10/2019 19:51:29 Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted October 4, 2019 Author Share Posted October 4, 2019 Rich, I did consider two rudder servos, but I am using these all round:- **LINK** At a torque of 31kg on a higher voltage I think they will be adequate with one on the rudder for my style of flying. I have used them on both my 60cc 3DHS Extra and 60 cc Goldwing Sbach and they are really good. I am using one each on the elevators and two per aileron. The Futaba RX is comfortable with being run on a 2S lipo which will give me the voltage I want. Edited By Adrian Smith 1 on 04/10/2019 08:44:58 Quote Link to comment Share on other sites More sharing options...
Rich too Posted October 4, 2019 Share Posted October 4, 2019 Got it I'm obsessed with redundancy so favour two servos - probably not necessary, hey ho Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted October 5, 2019 Author Share Posted October 5, 2019 As I didn't have a manual for the finer detail I have taken a bit of an unstructured approach to the assembly. I decided to fit the rudder by threading the rod through the fin lugs. the was about 5mm of the rod protruding so I cut the rod to size and covered the location with film. The movement in the rudder is very smooth and I am pleased with it. Next I decided to trim the rods on the elevators. Covering the hole with white film. I couldn't think of a better way to finish it off. Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted October 5, 2019 Author Share Posted October 5, 2019 I thought I would test fit the tailplane. They are a tight fit and by that I mean a tight fit. The tolerances on the internal tube and spar are not quite right. Anyway that done I measured how long the extensions leads from the elevator servos will have to be. I am going to make up 1 metre lengths for both servos to be safe. That will be the next job. Meanwhile I fitted and glued the horns to the other main wing as before. Quote Link to comment Share on other sites More sharing options...
Rich too Posted October 6, 2019 Share Posted October 6, 2019 That method of hinging is a nice touch. 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.