Plummet Posted August 29, 2014 Share Posted August 29, 2014 A friend of mine has asked me to help him with a problem with a glider. The ailerons are OK, but the flaps need servos that turn in opposite directions. I have already pointed him towards a servo reverser. However, I understand that servos from different manufacturers may turn in different directions. Do any of you folk know of pairs of servos that are matched as far as power, speed and angle are concerned, but opposite in direction? Or do any manufacturers sell matched pairs? Plummet Quote Link to comment Share on other sites More sharing options...
john melia 1 Posted August 29, 2014 Share Posted August 29, 2014 What about this **LINK** Quote Link to comment Share on other sites More sharing options...
Plummet Posted August 29, 2014 Author Share Posted August 29, 2014 You know the noise a garage mechanic makes when he wants to prepare the customer for a wallet purge - you know - half whistle, half intake of breath? $69.99? Plummet Quote Link to comment Share on other sites More sharing options...
Electriflier Posted August 29, 2014 Share Posted August 29, 2014 Plummet, I have used these many times and found them to be very reliable. **LINK** Regards Roy Quote Link to comment Share on other sites More sharing options...
David P Williams Posted August 29, 2014 Share Posted August 29, 2014 Can he put them on different channels and do a mix? Quote Link to comment Share on other sites More sharing options...
Plummet Posted August 29, 2014 Author Share Posted August 29, 2014 Posted by David P Williams on 29/08/2014 17:53:04: Can he put them on different channels and do a mix? No - he has old and very basic radio kit. (No not 27MHz.) I already know about servo reversers - I am asking about matched servos rather than the reversers. (And I have already been through the procedure for rewiring a server to reverse it.) Plummet Quote Link to comment Share on other sites More sharing options...
cymaz Posted August 29, 2014 Share Posted August 29, 2014 Hitec and futaba are opposite , I think Quote Link to comment Share on other sites More sharing options...
Phil Green Posted August 29, 2014 Share Posted August 29, 2014 Correct, Hitec & Futaba Or a pair of programmable digitals, they can be individually reversed. Edited By Phil Green on 29/08/2014 19:14:25 Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted August 29, 2014 Share Posted August 29, 2014 Can you-he not just use a matched pair the same way and reposition servo or horn ? John Quote Link to comment Share on other sites More sharing options...
Chuck Plains Posted August 29, 2014 Share Posted August 29, 2014 As John says above. But I guess it depends on which model is having the servos installed. I physically reversed one servo relative to the pre-set position in my Bixler2. So that I had both servos looking exactly the same and moving the arms in exactly the same direction as each other. Here's my video on Youtube Quote Link to comment Share on other sites More sharing options...
Jamie sawyer Posted August 29, 2014 Share Posted August 29, 2014 Agree with John---- less to go wrong to Jamie Quote Link to comment Share on other sites More sharing options...
FlyinBrian Posted August 29, 2014 Share Posted August 29, 2014 Hitec programmable digital servos can be reversed using the programmer. Quote Link to comment Share on other sites More sharing options...
Plummet Posted August 29, 2014 Author Share Posted August 29, 2014 Posted by john stones 1 on 29/08/2014 19:17:05: Can you-he not just use a matched pair the same way and reposition servo or horn ? John Well... He is a flyer more than a modeller. I am not worried about reversing a servo or hacking a servo mount, but he is less enthusiastic. To a large extent I am asking the question in order to have an easy answer for the future. The Hitec v. Futaba thing looks good. Do all servos have similar movement ranges? If so, and as long as they are the same speed and their arms can be matched then... the jobs a goodun. Plummet Edited By Plummet on 29/08/2014 20:27:09 Quote Link to comment Share on other sites More sharing options...
crispin church Posted August 29, 2014 Share Posted August 29, 2014 use non digi one and reverse the wires on motor and pot Quote Link to comment Share on other sites More sharing options...
Plummet Posted August 29, 2014 Author Share Posted August 29, 2014 Posted by crispin church on 29/08/2014 20:26:45: use non digi one and reverse the wires on motor and pot Been there, done that, (and got slagged off on the forum for bothering to do it!) As I have said - its not me but a friend who is not into that sort of thing! Plummet Quote Link to comment Share on other sites More sharing options...
Biggles' Elder Brother - Moderator Posted August 29, 2014 Share Posted August 29, 2014 Personally I'd put them on different channels and set the mix on the slave at -100%. BEB Quote Link to comment Share on other sites More sharing options...
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