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Skookum Robotics Skookum Robotics SK-360 SK-540 & SK-720 Digital Flybar |
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06-06-2014, 02:45 PM | #1 (permalink) |
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Join Date: Feb 2012
Location: Chilliwack, British Columbia
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Stumped on Piro behavior (solved)
I have a sk540 on my 450 Dominator and it's stable in a hover and the cg seems spot on but for the life of me can't figure out why the nose tilts down instantly on a Piro.
It's like I have the Piro optimization wrong if this was a ar7200bx if that makes sense. It looks wicked and that I have made skills but it's not me it's the heli lol. It's been fine up untill I put a sk540 on her. Used ar7200bx and Ikon same bird.
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HELIDIRECT - HOBBYWING - XNOVA - XPERT - PULSE - ROTOR TECH Last edited by Colin Broughton; 06-08-2014 at 08:16 AM.. |
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06-06-2014, 04:29 PM | #2 (permalink) |
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Join Date: Sep 2011
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Could it be you connected the left and right servos the wrong way? Left right is when you look at the heli from the tail fwd towards the nose
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2 X X7 | Scorpion 4525 Ultimate 4+6T YY / Xnove 4530 525 | scorpion Tribunus 200II ESC | Edge 713 | Logo 690SX | Pyro 440 7+8T YY | Castle 120HV | X3 | 4S | HW 50A V2 ESC | Scorpion 2221 2050KV 9T D | SK540 / Brain2 | Mks |
06-07-2014, 10:52 AM | #3 (permalink) |
Join Date: Mar 2007
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=] possibly the gyro isn't calibrated correctly? can you turn on logging and send a sample log to SK support....
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06-07-2014, 12:01 PM | #4 (permalink) |
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Georgi - what could not be calibrated? Its a 540 and holds hover...
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2 X X7 | Scorpion 4525 Ultimate 4+6T YY / Xnove 4530 525 | scorpion Tribunus 200II ESC | Edge 713 | Logo 690SX | Pyro 440 7+8T YY | Castle 120HV | X3 | 4S | HW 50A V2 ESC | Scorpion 2221 2050KV 9T D | SK540 / Brain2 | Mks |
06-07-2014, 12:03 PM | #5 (permalink) |
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Join Date: Apr 2011
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Stumped on Piro behavior
Not trying to start a war here. But I was never able to get my 540 to piro in place. Ever.
Sent from my iPhone using Tapatalk
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Heli's I have: Goblin 500 (Vbar Neo), Gaui X5(Vbar Neo), X7(Vbar Neo), Innova 600 Night heli (Vbar Neo Vbar Vcontrol I'm the not so newbheliusr as I have been here a while. But I like this name. |
06-07-2014, 12:03 PM | #6 (permalink) |
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Thread Starter
Join Date: Feb 2012
Location: Chilliwack, British Columbia
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How do I turn on logging?
I'll check and see if the servos are switched, but shouldn't that have been detected or corrected in the software set up portion?
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HELIDIRECT - HOBBYWING - XNOVA - XPERT - PULSE - ROTOR TECH |
06-07-2014, 12:43 PM | #7 (permalink) | |
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Quote:
Didn't you go Vbar?
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2 X X7 | Scorpion 4525 Ultimate 4+6T YY / Xnove 4530 525 | scorpion Tribunus 200II ESC | Edge 713 | Logo 690SX | Pyro 440 7+8T YY | Castle 120HV | X3 | 4S | HW 50A V2 ESC | Scorpion 2221 2050KV 9T D | SK540 / Brain2 | Mks |
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06-07-2014, 12:46 PM | #8 (permalink) | |
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Quote:
For the servos - you can switch them and then reverse the roll in the software. If that is what you did it will well explain the pyro comp correcting wrong. A short video would help a lot to understand what exactly is the prob.
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2 X X7 | Scorpion 4525 Ultimate 4+6T YY / Xnove 4530 525 | scorpion Tribunus 200II ESC | Edge 713 | Logo 690SX | Pyro 440 7+8T YY | Castle 120HV | X3 | 4S | HW 50A V2 ESC | Scorpion 2221 2050KV 9T D | SK540 / Brain2 | Mks Last edited by omerco; 06-07-2014 at 02:07 PM.. |
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06-07-2014, 01:30 PM | #9 (permalink) |
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Join Date: Apr 2011
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Stumped on Piro behavior
I had nothing positive to say to help the op. I apologize. I should not have posted anything.
Sent from my iPhone using Tapatalk
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Heli's I have: Goblin 500 (Vbar Neo), Gaui X5(Vbar Neo), X7(Vbar Neo), Innova 600 Night heli (Vbar Neo Vbar Vcontrol I'm the not so newbheliusr as I have been here a while. But I like this name. |
06-07-2014, 01:31 PM | #10 (permalink) | |
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Join Date: Sep 2011
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Quote:
with that i totally agree...
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2 X X7 | Scorpion 4525 Ultimate 4+6T YY / Xnove 4530 525 | scorpion Tribunus 200II ESC | Edge 713 | Logo 690SX | Pyro 440 7+8T YY | Castle 120HV | X3 | 4S | HW 50A V2 ESC | Scorpion 2221 2050KV 9T D | SK540 / Brain2 | Mks |
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06-07-2014, 01:43 PM | #11 (permalink) |
Join Date: Mar 2007
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=] Omer, not sure yet, it's the yaw axis affecting the elevator axis, I think SK needs to look at it, strange?
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06-07-2014, 01:47 PM | #12 (permalink) |
Join Date: Mar 2007
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=] that's fine, hope all is well, sincerely..... georgi.
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06-07-2014, 02:07 PM | #13 (permalink) | |
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Quote:
nose down or up will come from inserting roll command - hence my guess about left and right servo switch. although i'm not sure it should be so severe... I can say i did the switch from Bx to SK on a problematic heli and the pyro comp of SK was much better - so something is definitely off here
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2 X X7 | Scorpion 4525 Ultimate 4+6T YY / Xnove 4530 525 | scorpion Tribunus 200II ESC | Edge 713 | Logo 690SX | Pyro 440 7+8T YY | Castle 120HV | X3 | 4S | HW 50A V2 ESC | Scorpion 2221 2050KV 9T D | SK540 / Brain2 | Mks |
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06-07-2014, 03:03 PM | #14 (permalink) |
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Join Date: Aug 2010
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I will have to check mine tomorrow. I never did try a pyro in one spot. Just set it up. Dialed in a few settings and fkew. If mine dips and I can find out why I will let you know....
Sent from my SM-T210R using Tapatalk
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B400(retired),Mini Titan V1(Retired),Radikal G20 (scrapped),Align T-Rex 500pro DFC,Synergy E5s |
06-07-2014, 03:12 PM | #15 (permalink) |
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not sure if this is relevant but I had a similar thing happen to me, both upright and inverted, just lately I've been putting a lot of time into inverted piroing. tail lifts almost instantly and needs constant correction, my piro's look more like small piro funnels, but I stuck with it and now my piro's are pretty flat, I noticed that in the beginning they got out of shape very quickly and need constant but small corrections, could it be a small unwanted input at the beginning of the piro that gets worse?
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06-07-2014, 03:34 PM | #16 (permalink) |
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Join Date: Sep 2011
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The most common reason for what you describe is an unleveled swash plate. From the description here his problem sounds worse than that - although im not sure that is why i asked for a video. To understand how bad it is.
But to your Q-yes it can easily be an input. Also bad CG
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2 X X7 | Scorpion 4525 Ultimate 4+6T YY / Xnove 4530 525 | scorpion Tribunus 200II ESC | Edge 713 | Logo 690SX | Pyro 440 7+8T YY | Castle 120HV | X3 | 4S | HW 50A V2 ESC | Scorpion 2221 2050KV 9T D | SK540 / Brain2 | Mks |
06-08-2014, 08:15 AM | #17 (permalink) |
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Thread Starter
Join Date: Feb 2012
Location: Chilliwack, British Columbia
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Ok problem solved yesterday
A friend of mine looked at my software and I didn't have it in advance settings, I've read about this is the set up sticky but wasn't sure how to get that option and just assumed it was a 720 menu and the 540 didn't have it lol. There's so many parameters to adjust now Thanks to everyone who posted there ideas. In the end my buddy turned off self tune and selected small heli. Then went to 200 on hiller decay and adjusted servo links to get a hands free hover, needed alittle tweaking, went forward to the left. Adjusted one full turn on left servo link. Turned hiller decay back to 150 and bam this thing is piroing like never before. I'm sorry if this was a simple solution I over looked I'm use to ar7200bx type set ups as I'm still alittle green with the software type set ups along with adjust swash unlevel to get hands free hovers etc.
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HELIDIRECT - HOBBYWING - XNOVA - XPERT - PULSE - ROTOR TECH |
06-08-2014, 09:37 AM | #19 (permalink) |
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Georgi - could it be we are all over complicating things lately? Missing all the basics
Great news and happy flying!
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2 X X7 | Scorpion 4525 Ultimate 4+6T YY / Xnove 4530 525 | scorpion Tribunus 200II ESC | Edge 713 | Logo 690SX | Pyro 440 7+8T YY | Castle 120HV | X3 | 4S | HW 50A V2 ESC | Scorpion 2221 2050KV 9T D | SK540 / Brain2 | Mks |
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