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600 Class Electric Helicopters 600 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar. |
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01-20-2017, 01:56 PM | #121 (permalink) |
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Join Date: Sep 2015
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Hi you guys. I inherited a HK600 with a nice new Hughes 500E body. The heli needs a complete rebuild with Align parts which are ordered. It has a real cheap SW-80A esc/bec which I can't program, so it chops out the gears if it powers up too quick, and I have no idea what to set the servos at. I will try a Talon 90 as I understand Castle gear and have the programming cord, but can any one tell me what to set the servo voltage at, and the frame rate. The cyclic servos have no markings (all plastic housings, look cheap) and the tail servo says Align DS655, so should I set the voltage to 6v for all servos. I have the frame rate set to 22m/s??
Also the tail is not holding on spool up, can't shorten the links much more. The gain is set at 50, is that a bit low? There is evidence all the good stuff was robbed from this when sold, it has had a lot of use, the swash was so sloppy it is unstable on take off, and combined with the tail I am not really prepared to fly it. Already stripped main gear on spool up, and then it tipped without warning. So a rebuild... Last edited by crsorrell0653; 01-20-2017 at 04:00 PM.. |
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01-20-2017, 05:18 PM | #122 (permalink) |
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Join Date: Aug 2008
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Big error trying to take of a heli in the state you described, sounds like it was put together with bits from the spares draw. What gyro is on it, the tail servo is ok if not faulty of coarse. 6V sounds ok for the servos but sounds like it needs a great deal of attention, maybe the gears on one of the cyclic servos are shot. Try and build a test turntable, all it takes is a couple of pieces of wood with a bolt and a few washers etc'.
Good luck.
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T-Rex600-ICE100,WR10ABEC,Scorp4025-1100+17T,Kasama head,QUK Swash CNC Tail,G-Force blocks,3152,DS760+BLS251,DX7+AR7000,FM. Blade400-CC ICE50,Scorp2221-8+12T,Sonix Head&Tail,5A BEC,HS65HB,Quark+3500G,AR7000,Align Carbon blades,TRex500 Skids,Flymentor. |
01-20-2017, 05:58 PM | #123 (permalink) |
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Join Date: Sep 2015
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I wasn't going to fly it, just spool up to the hover to see what the issues were, I had reset the links and swash to level (some parts were on upside down would you believe it) and the tracking was perfect. Big learning curve going from a 450 to 600. The forces with the 600 are huge. The gyro is a CSM SL720.
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01-20-2017, 06:06 PM | #124 (permalink) |
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Join Date: Aug 2008
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From what I remember reading about the SL720 when it came out, quite a good gyro.
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T-Rex600-ICE100,WR10ABEC,Scorp4025-1100+17T,Kasama head,QUK Swash CNC Tail,G-Force blocks,3152,DS760+BLS251,DX7+AR7000,FM. Blade400-CC ICE50,Scorp2221-8+12T,Sonix Head&Tail,5A BEC,HS65HB,Quark+3500G,AR7000,Align Carbon blades,TRex500 Skids,Flymentor. |
01-20-2017, 07:38 PM | #125 (permalink) |
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Join Date: Sep 2015
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I now discover that the DS655 has a switching fault, so is quite intermittent. I can get an Align BL815 servo second hand, is that suitable- seems quite a high spec servo, but is 6-8 volts. This is becoming a new build very quickly.
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01-20-2017, 08:18 PM | #126 (permalink) |
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Join Date: Aug 2008
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The BL815h is not a tail or rudder servo, more a cyclic. you can look at more reasonable 6V versions since you are not going HV or are you.
I run the Futaba BLS251 with a Spartan DS760, this is not a cheap servo though. An Align DS650 would be a fair option and probably serve you well. There are other options as well but none come to mind right now.
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T-Rex600-ICE100,WR10ABEC,Scorp4025-1100+17T,Kasama head,QUK Swash CNC Tail,G-Force blocks,3152,DS760+BLS251,DX7+AR7000,FM. Blade400-CC ICE50,Scorp2221-8+12T,Sonix Head&Tail,5A BEC,HS65HB,Quark+3500G,AR7000,Align Carbon blades,TRex500 Skids,Flymentor. |
01-21-2017, 04:36 AM | #127 (permalink) |
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Thread Starter
Join Date: Dec 2016
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My Align DS650 cost £25 second hand off ebay… like new… just had to fit new plug to the end .
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01-21-2017, 07:24 AM | #128 (permalink) |
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Join Date: Aug 2008
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Good for you, there are some components of critical nature I personally would not risk buying second hand of strangers but if it works for you......
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T-Rex600-ICE100,WR10ABEC,Scorp4025-1100+17T,Kasama head,QUK Swash CNC Tail,G-Force blocks,3152,DS760+BLS251,DX7+AR7000,FM. Blade400-CC ICE50,Scorp2221-8+12T,Sonix Head&Tail,5A BEC,HS65HB,Quark+3500G,AR7000,Align Carbon blades,TRex500 Skids,Flymentor. |
01-22-2017, 03:44 PM | #129 (permalink) |
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Join Date: Sep 2015
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Thanks for the advice. I finally got the gyro to change modes, by setting up with a -60/+60 gain setting on a separate switch ( how you set it up with 3 flight modes eludes me on my Dx9). But which mode do you fly with. Mode O gives a self centering tail and mode 1 has a non return tail but seems to correct the yaw on the bench.
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01-22-2017, 04:36 PM | #130 (permalink) |
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Join Date: Aug 2008
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The tail gyro normally has two modes Heading Hold (HH)(your +60) and Rate mode (your -60). This is not to be confused with the flight modes on the TX. Most flights use heading hold, rate mode in mainly used on scale flying.
The flight modes relate to three different settings for throttle and pitch curves including mixes if they are used.
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T-Rex600-ICE100,WR10ABEC,Scorp4025-1100+17T,Kasama head,QUK Swash CNC Tail,G-Force blocks,3152,DS760+BLS251,DX7+AR7000,FM. Blade400-CC ICE50,Scorp2221-8+12T,Sonix Head&Tail,5A BEC,HS65HB,Quark+3500G,AR7000,Align Carbon blades,TRex500 Skids,Flymentor. |
01-22-2017, 05:57 PM | #131 (permalink) |
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Join Date: Sep 2015
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Hey, thanks for that. So does the rate mode dumb it down a bit for scale flyers. I notice for instance that my AR7210 on the 360cfx seems to replicate HH mode on the bench , but returns the tail to the center in the air. Is that what the heading hold is doing. What happens in rate mode when flying??
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01-23-2017, 01:44 PM | #132 (permalink) |
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Thread Starter
Join Date: Dec 2016
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Hi All
Been tinkering again lol. I decided to get a swashplate levelling tool so could set it up properly. I have set all servo's to 90 degrees ...set swash mix to 50 on all 3 ....made sure the transmitter was at half stick ( and in the pitch curve thingy lol ) ..then used to levelling tool to set the swash by adjusting the link rods. I then made sure i had no interference when at 0 stick and 100 percent stick by adjusting servo limits. Once that was done i refitted the rotor mechanism and made sure that it was not hitting on full and zero elevator . I then made sure that all linkages in the main rotor part were level ...and then set flybar and blades to zero pitch at centre stick. Does this sound right to you ? just want to make sure im doing this right . I then fitted my Spartan gyro ...but when went to setup it would not work ....had to set the gyro gain 0 to below 50 ....then it started working . I now have gyro gain 0 at 30 ...and 1 at 70 . Im a bit lost when comes to the gyro gain etc ...so any help is most appreciated. By the way ...im using a Spektrum DX7 . Have set gyro to gear in transmitter and connected gain wire to gear on receiver. When i move heli left or right you can see the servo arm move back and forth ...but have seen online that if set to heading hold then it should stop in that position ...if move left then should move servo arm but not return till move heli back to starting postion....is that right and if so how do i set heading hold ? Any help most appreciated Karl |
01-23-2017, 02:15 PM | #133 (permalink) |
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Join Date: Sep 2015
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Try this link to understand heading hold vs yaw rate mode
http://www.rchelicopterfun.com/heading-hold-gyro.html As per previous posts, I set my gyro to switch from yaw rate mode at -60 to Heading Hold mode at +60 to get it to switch between the two. It seems that in HH hold when you move the heli the tail should go in the opposite direction on the bench at least, and not return until you move it back. I can't figure out though how to have three different gyro settings to coincide with my three flight modes, as 60 is probably too high in flight mode 2 for instance. |
01-23-2017, 02:47 PM | #134 (permalink) |
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Thread Starter
Join Date: Dec 2016
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I'll take a look at that .
Cheers 🍻 |
01-23-2017, 06:34 PM | #135 (permalink) |
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Join Date: Jan 2014
Location: Little Neck, NY
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[\Quote]
I then made sure i had no interference when at 0 stick and 100 percent stick by adjusting servo limits. [/Quote] You are probably doing the right thing, but I'm not sure. After adjusting the servo linkages at mid-stick to level the swash, you have to set the servo limits at 0 and 100 percent pitch to keep the swash level there as well. That's probably what you meant by no interference, but I just want to make sure you're doing the right thing. As for making sure you get exactly 50 percent at mid-stick, set you pitch curve to 0-50-50-50-100 it it's a five-point curve, or accordingly if it's more points. The idea is to have that broad flat region in the center so you exact stick position doesn't matter. just make sure you don't try to fly like that... |
01-24-2017, 01:25 AM | #136 (permalink) |
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Thread Starter
Join Date: Dec 2016
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[/QUOTE]
You are probably doing the right thing, but I'm not sure. After adjusting the servo linkages at mid-stick to level the swash, you have to set the servo limits at 0 and 100 percent pitch to keep the swash level there as well. That's probably what you meant by no interference, but I just want to make sure you're doing the right thing. As for making sure you get exactly 50 percent at mid-stick, set you pitch curve to 0-50-50-50-100 it it's a five-point curve, or accordingly if it's more points. The idea is to have that broad flat region in the center so you exact stick position doesn't matter. just make sure you don't try to fly like that...[/QUOTE] Hi Yes done exactly what you said ...just worded it differently lol No interference is what people call it when you watch youtube videos ....0 to 100 percent stick and no gap on swash levelling tool. I do get a slight gap when moving up and down ...but cannot get rid of that ...no gap at 0 ...no gap at 50 and no gap at 100 ....just inbetween i get a small gap. As for stick at half way ...yes thats what i did ...looked at pitch curve . So looks like im doing things right ...thats good to know. Cheers :-) Just need to figure out the gain on servo ...so going to check out that link now have 10 mins lol |
01-27-2017, 01:36 PM | #137 (permalink) |
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Join Date: Sep 2015
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I found that when I used the sub trim to centre the Pitch servo horn that it altered the zero on the servo screen, so I could no longer use this screen to calibrate zero pitch for blade tracking. How do you sub trim your servos and still retain zero alignment between the transmitter toggles and the screens?
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