Basil Posted February 16, 2022 Share Posted February 16, 2022 I am finding it almost impossible to find any reversing Y leads ( For flaps). I assume that I could take an ordinary Y lead strip back the cable junctions, and remake the joins in a suitable fashion to make one, I am assuming that they are just soldered together. What leads are reversed? I assume its the Neg & Pos alone. Is it feasable and achievable?. I will also search my box of bits for an unused plastic 'Plug' that I could replace the original with swapped leadsl!!!! What does every body else do, wieght would be a problem. Bas Quote Link to comment Share on other sites More sharing options...
Trevor Posted February 16, 2022 Share Posted February 16, 2022 Please don’t go reversing any wires in the lead! A servo reverser is an electronic device which translates long pulses into short ones and vice versa. If you can’t find a Y lead with a reverser in one leg just search for ‘servo reverser’ or ‘servo reversing lead’ and I’m sure you’ll find a reversing extension lead that you can use with your standard Y lead. Quote Link to comment Share on other sites More sharing options...
Andy48 Posted February 16, 2022 Share Posted February 16, 2022 Turn one servo round through 180 degrees and put the servo arm on the other side. 1 Quote Link to comment Share on other sites More sharing options...
Jon H Posted February 16, 2022 Share Posted February 16, 2022 Not a fan of reversing y leads as i have always had nightmare radio glitches with them installed. I echo the comments of the guys above. Do not just reverse wires, this will cause smoke. Just flip one servo over so it is in the same orientation as its best mate on the other wing. For ailerons they need to oppose each other, but for flaps they need to be the same. Quote Link to comment Share on other sites More sharing options...
Shaun Walsh Posted February 16, 2022 Share Posted February 16, 2022 As said before, just flip the appropriate servo over. Alternatively use programmable servos and reverse one using the programmer, which is a bit of overkill really. Quote Link to comment Share on other sites More sharing options...
Simon Clark Posted February 16, 2022 Share Posted February 16, 2022 If you still want a reversing Y lead, then you can get them from Mike Ridley at Model Radio Workshop. His stuff is always good: https://modelradioworkshop.co.uk/shop/servo-control-devices/mrw108-y-lead-servo-reverser/ Simon Quote Link to comment Share on other sites More sharing options...
MattyB Posted February 16, 2022 Share Posted February 16, 2022 (edited) Can you not jsut 1 hour ago, Basil said: I am finding it almost impossible to find any reversing Y leads ( For flaps). I assume that I could take an ordinary Y lead strip back the cable junctions, and remake the joins in a suitable fashion to make one, I am assuming that they are just soldered together. What leads are reversed? I assume its the Neg & Pos alone. Is it feasable and achievable?. I will also search my box of bits for an unused plastic 'Plug' that I could replace the original with swapped leadsl!!!! What does every body else do, wieght would be a problem. Bas Can you not just put the servos into separate channels and use a mix to get them moving together in the right direction? retty much any radio you can buy today is capable of this, though you could of course be using something older I suppose. Reversing y-leads are all a bit 1990s... ? Edited February 16, 2022 by MattyB 1 Quote Link to comment Share on other sites More sharing options...
Martin Harris - Moderator Posted February 16, 2022 Share Posted February 16, 2022 (Sort of) funny story...a friend bought a Kyosho FW190 and started installing the servos. Oh, thought he, the silly so and sos have reversed one of the servo hatches as it's the same way round on both wings. He then proceeded to remove the printed covering, reversed the hatch and reapplied it. When he installed the servo he managed to burn it out as of course it was trying to operate the wrong way. After discovering what he'd done wrong he decided to buy a reverser rather than rectify the mistake - which would have been great if he hadn't got confused and connected it to the wrong servo...exit 2 more servos in puffs of smoke! A few weeks later, a far more experienced club member was telling us about his identical new 190 which he was assembling - "idiots have managed to supply it with both flap servos the same way round but I've swapped one now so it's mirror imaged"... Quote Link to comment Share on other sites More sharing options...
Nigel R Posted February 16, 2022 Share Posted February 16, 2022 1 hour ago, Basil said: What does every body else do, wieght would be a problem. Any of the above answers; Y lead, with both servos same way, or use 2 channels on the receiver. If building, I might go with torque rods or bellcranks driven from one servo - not so helpful if you've already got the finished airframe though. Quote Link to comment Share on other sites More sharing options...
Jon H Posted February 16, 2022 Share Posted February 16, 2022 (edited) 1 hour ago, Martin Harris - Moderator said: (Sort of) funny story...a friend bought a Kyosho FW190 and started installing the servos. Oh, thought he, the silly so and sos have reversed one of the servo hatches as it's the same way round on both wings. He then proceeded to remove the printed covering, reversed the hatch and reapplied it. When he installed the servo he managed to burn it out as of course it was trying to operate the wrong way. After discovering what he'd done wrong he decided to buy a reverser rather than rectify the mistake - which would have been great if he hadn't got confused and connected it to the wrong servo...exit 2 more servos in puffs of smoke! A few weeks later, a far more experienced club member was telling us about his identical new 190 which he was assembling - "idiots have managed to supply it with both flap servos the same way round but I've swapped one now so it's mirror imaged"... It always astonishes me that when a modeller finds something wrong their default position is that its someone else's fault. Clearly they could never have made a mistake as they know better than everyone, including the people who build the product they just bought, so it must need fixing if something is not right. 5 seconds looking at the problem (or...the instructions) would have probably revealed the situation. But nooo. cant stop and think, someone pass me the chain saw. ? Edited February 16, 2022 by Jon - Laser Engines 2 Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted February 16, 2022 Share Posted February 16, 2022 Use a couple of Hi tec digitals, borrow your mates progammer and reverse one servo. Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted February 16, 2022 Share Posted February 16, 2022 You could always go back into your rubbish box and find an old servo and cross the motor and potentiometer wires around, or Futaba one side and Hitec the other, they used to turn different ways,,, Or fit a mechanical crank,,,, Quote Link to comment Share on other sites More sharing options...
GrumpyGnome Posted February 16, 2022 Share Posted February 16, 2022 Following a few issues, I now hate Y-leads! Favoured option: separate channels for ultimate flexibility. Option 2: change servo arm orientation Option 3: servo reverser on one 'leg' of Y-lead. Not worth changing plugs or fiddling with servo IMHO. 2 Quote Link to comment Share on other sites More sharing options...
Jon H Posted February 16, 2022 Share Posted February 16, 2022 The only Y leads worth using are the ones with a solid block round the join as the heatshrink ones are easy to bust with an accidental tug on the leads Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted February 17, 2022 Share Posted February 17, 2022 The only ones I used to use were the proper Futaba ones, but now I but proper pre wired Futaba plugs and solder them myself ! Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted February 17, 2022 Share Posted February 17, 2022 Don`t get it. Flipping a servo round means clockwise is still clockwise for the same control input, so simply put a reverser in one lead or use two channels. Alternatively you could move the control surface horn on one flap if necessary. Quote Link to comment Share on other sites More sharing options...
leccyflyer Posted February 17, 2022 Share Posted February 17, 2022 Wouldn't just putting the pushrod on the opposite side of the servo arm reverse the movement - which is what is suggested by flipping the servo through 180 degrees? Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted February 17, 2022 Share Posted February 17, 2022 5 minutes ago, Martin McIntosh said: Don`t get it. Flipping a servo round means clockwise is still clockwise for the same control input, so simply put a reverser in one lead or use two channels. Alternatively you could move the control surface horn on one flap if necessary. You will Martin, and both clockwise But servo on the right, arm 90° to right, clockwise to pull Servo turned, and on the left, arm 90° left, clockwise still, will push Quote Link to comment Share on other sites More sharing options...
Basil Posted February 18, 2022 Author Share Posted February 18, 2022 Thank you gentlemen. If I had used my brain alittle more !!!. Now its been pointed out I wonder how I did not solve it myself. This is the first time I have made a model with flaps. Bas Quote Link to comment Share on other sites More sharing options...
GrumpyGnome Posted February 18, 2022 Share Posted February 18, 2022 Don't forget, if you use the 'opposite' side of the servo arm, you may need to reposition the control horn to maintain the correct geometry. If not, you may have different throws..... Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted February 19, 2022 Share Posted February 19, 2022 Just switching the leads will let the smoke out! Why not use two channels and reverse the servo that way ? Quote Link to comment Share on other sites More sharing options...
CARPERFECT Posted February 19, 2022 Share Posted February 19, 2022 If you want a servo reverser i have one Quote Link to comment Share on other sites More sharing options...
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