EGB 953 Posted December 17, 2023 Share Posted December 17, 2023 I need one of these so I can join two separate elevator surfaces. Any idea what it’s called? (See attached image). Quote Link to comment Share on other sites More sharing options...
Robert Cracknell Posted December 17, 2023 Share Posted December 17, 2023 Would a suitably sized electrical terminal block cut to length do the job? 3 Quote Link to comment Share on other sites More sharing options...
steve too Posted December 17, 2023 Share Posted December 17, 2023 (edited) An abomination. VQ's instructions for a model that I have simply refer to it as a connector. I bought a model 2nd hand that did something similar with a hardwood block. My recommendation would be to use two mini servos, e.g. HS-82s (which is what I did in the VQ). Edited December 17, 2023 by steve too 3 1 Quote Link to comment Share on other sites More sharing options...
Tim Kearsley Posted December 17, 2023 Share Posted December 17, 2023 Model Fixings (modelfixings.co.uk) sell them and call them dual push connectors. 3 Quote Link to comment Share on other sites More sharing options...
Andy Stephenson Posted December 17, 2023 Share Posted December 17, 2023 https://www.modelfixings.co.uk/rc_fittings.htm#dual connector 1 Quote Link to comment Share on other sites More sharing options...
Don Fry Posted December 17, 2023 Share Posted December 17, 2023 Lump of wood, drilled for wires, and locking bolts. Cheap too. 1 Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted December 17, 2023 Share Posted December 17, 2023 Or three of these on a plank or metal strip. 2 1 Quote Link to comment Share on other sites More sharing options...
EvilC57 Posted December 17, 2023 Share Posted December 17, 2023 (edited) I use the 3-way metal terminals from an electrical celing rose (see pic). Cheaper to buy than special 'dual push connectors', and more solid than using plastic terminal blocks. I then encase the whole assembly in epoxy once adjusted and tested. Edited December 17, 2023 by EvilC57 3 1 Quote Link to comment Share on other sites More sharing options...
kc Posted December 17, 2023 Share Posted December 17, 2023 Aerobatic models often use a ' forked pushrod ' made by bending both wires in to meet the central pushrod then binding and soldering. Less chance of an elevator failure due to a loose screw? 3 Quote Link to comment Share on other sites More sharing options...
EGB 953 Posted December 17, 2023 Author Share Posted December 17, 2023 3 hours ago, kc said: Aerobatic models often use a ' forked pushrod ' made by bending both wires in to meet the central pushrod then binding and soldering. Less chance of an elevator failure due to a loose screw? That makes sense or the suggestion of separate servos, this is for a small plane (25) so not expecting too much stress. My soldering is pretty bad so the risk may be worse that way. Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted December 17, 2023 Share Posted December 17, 2023 I don't mind those connectors, pretty sturdy and you can can give the studs a good turn, used on quite a few artf's I've owned and never failed me. Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted December 18, 2023 Share Posted December 18, 2023 This is what I do when using carbon rods that you can't use screws on. 1 Quote Link to comment Share on other sites More sharing options...
Brian Cooper Posted December 18, 2023 Share Posted December 18, 2023 Forget "bodge" connectors. . Use two servos. 1 Quote Link to comment Share on other sites More sharing options...
Nigel R Posted December 18, 2023 Share Posted December 18, 2023 I'd probably bend the ends of that wire over at 90 deg, glue / bind them to a hard balsa block or short length of hardwood dowell, then bind a third short length to go to the servo. Nylon thread, epoxy, some scrap wood, would take only a few minutes to do. Certainly permanent enough for a 25 size airframe. Effectively, a (very very short) dual pushrod - which were common (as kc noted) on old 60 size aerobatic airframes in 70s/80s/90s. Two micro servos also works fine, but the single standard servo install is already there. 2 Quote Link to comment Share on other sites More sharing options...
EGB 953 Posted December 18, 2023 Author Share Posted December 18, 2023 2 hours ago, Nigel R said: I'd probably bend the ends of that wire over at 90 deg, glue / bind them to a hard balsa block or short length of hardwood dowell, then bind a third short length to go to the servo. Nylon thread, epoxy, some scrap wood, would take only a few minutes to do. Certainly permanent enough for a 25 size airframe. Effectively, a (very very short) dual pushrod - which were common (as kc noted) on old 60 size aerobatic airframes in 70s/80s/90s. Two micro servos also works fine, but the single standard servo install is already there. This looks a pretty practical option and your explanation is much appreciated. getting two elevators to be perfectly aligned might be very difficult though, any suggestions on how i might go about it? Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted December 18, 2023 Share Posted December 18, 2023 9 minutes ago, EGB 953 said: This looks a pretty practical option and your explanation is much appreciated. getting two elevators to be perfectly aligned might be very difficult though, any suggestions on how i might go about it? If you get the connector close ennough any fine adjustments can be made at the clevise on the elevators ? 1 1 Quote Link to comment Share on other sites More sharing options...
Nigel R Posted December 18, 2023 Share Posted December 18, 2023 As ED says. I've assumed there are adjustable clevis at the elevator end of the pushrods. 1 Quote Link to comment Share on other sites More sharing options...
EGB 953 Posted December 18, 2023 Author Share Posted December 18, 2023 This is a fantastic forum - to have access to the collective wisdom of you all - it is greatly appreciated. Quote Link to comment Share on other sites More sharing options...
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