Setup questions for an HC3SX

[supertoyz]

I'm setting up a new HC3SX FBL unit and had a few questions.

1.) When I set up everything in my "Trims" tab so that all linkages are at right angles and my swashplate is level then save the changes and go to the next tab "Mixes" the servo's shift everytime. This of course then throws off all of the changes made in the trim menu,

2.) I completed the setup, hovered the heli and noticed a slight drift to the right and back. It seems to go in this direction regardless of it's orientation with the wind which would normally only require some minor trimming. With a FBL unit how do you dial this drift out? I understand that it will not hold a position and should drift however the drift should be random and not consistently to the back and right.

3.) I setup everything in the "Diagnose" Tab so that all of the bar graphs read perfectly. When I went back in last night after hovering I noticed a few settings were just slightly off. Only enough to that 1-2 pts of ATV fixed the imbalance. The collective range and collective range centering sliders are tweaked after the "Diagnose" tab. Does adjusting the Collective range and centering sliders impact the settings in the Diagnose tab?

4.) What's the operating temperature range of these units. I was hesitant to fly this weekend since temps were under 20 degress F. It seemed to hover fine but I was hesitant to try anything else.

[supertoyz]

Figured it out.......when I was setting everything up in the Trim mode I was moving the heli around to adjust ball links etc. When I then saved the settings and would go into the Mix settings the FBL unit then becomes active and begins to move the servos to compensate for movement. If I started the electronics and didn't touch the heli I could switch between the modes with no movement. A slightly out of level swash due to my lack of understanding likely explains the minor drift I was experiencing as well.

[F1 Rocket]

I sent a PM covering this but you have it figured out. How did the machine feel overall?

Danny

[supertoyz]

It was only a hover but it felt good. My first big electric so I love the sound of the blades slapping the air. Usually with a nitro you can't hear it so clearly. And the tail is insane, super fast and it slams to a stop like it hit a wall.

[Fairview]

I was curious how difficult it was to setup the helicommand sx. I am thinking about getting one. I heard the previous helicommands were difficult to setup because the instructions were difficult to follow. I also heard the bailout function works really well. That would be my reason for getting it.

[supertoyz]

I'm not done setting it up yet. It's ready to fly but I'm sure will require some tweaking. Overall I'd say it is confusing to setup the first time. But like anything else it would be relatively easy to do again. It's a very elaborate system that allows you to fine tune every parameter so of course it has a learning curve associated with it.

[Fairview]

It is too bad they don't have setup videos like the Finless videos. Those videos I am sure have saved hundreds of hours of aggravation on setups. If the manufactures did good videos in easy to understand English it would probably saved them a lot of complaints frequently asked questions.

[yoda]

Fairveiw
The bailout feature works really well it has saved my model once allready really pleased with the sx so far

[claudiu]

Hi Everyone!
I need some help with setting up the HC3-SX. I just am unshure if everything i ve done is right.Someone available on Skype to have a look?

regards,
Claudiu

[Joey.S]

Another problem with the HC3-SX

http://www.helicommand.com/index.php?lang=en


Still waiting for a fix for the failsafe and the Aux channel output.:mad:

[ozie]

Hi all,
Setting up on a TRex700E with 12 channel JR Tx,Rx with FPV and video recording.
Using setup assistant I can get as far as nominating the servo type and Tx,Rx system and writing it to the unit.
The next page step is the diagnose pagewhere I get no stick or trim menu responce from the Tx and cant adjust the bars so can't go any further till I do.
Re allocated a new model file in the Tx and also used the existing one with no head mixing and full 100% servo movement but no results.
Have other channels allocated to FPV and panning and they work ok but no responce in the diagnose step.
I am at a loss has anyone else had the same problem, what am I not seeing?
Will realy appreciate any input please.

Regards Grahame

[F1 Rocket]

Go to the RC page in the software and make sure it is set to "Channels" not "Spektrum/JR".

Danny

[johnjonfenomenon]

I'm setting up a new HC3SX FBL unit and had a few questions.

1.) When I set up everything in my "Trims" tab so that all linkages are at right angles and my swashplate is level then save the changes and go to the next tab "Mixes" the servo's shift everytime. This of course then throws off all of the changes made in the trim menu,

2.) I completed the setup, hovered the heli and noticed a slight drift to the right and back. It seems to go in this direction regardless of it's orientation with the wind which would normally only require some minor trimming. With a FBL unit how do you dial this drift out? I understand that it will not hold a position and should drift however the drift should be random and not consistently to the back and right.

3.) I setup everything in the "Diagnose" Tab so that all of the bar graphs read perfectly. When I went back in last night after hovering I noticed a few settings were just slightly off. Only enough to that 1-2 pts of ATV fixed the imbalance. The collective range and collective range centering sliders are tweaked after the "Diagnose" tab. Does adjusting the Collective range and centering sliders impact the settings in the Diagnose tab?

4.) What's the operating temperature range of these units. I was hesitant to fly this weekend since temps were under 20 degress F. It seemed to hover fine but I was hesitant to try anything else.


So what did u do to actually fix item 2. Did u just set the neutral position on the trim tab (90 degree arms), and then then go to the mix tab to set for a level swash by mechanically adjusting links?

I am experiencing the same issue but i used tx trim to correct. please advise

[Joachim HC]

Hi John,

NEVER use any Tx trims again after you set the centres in the Diagnose page (with trim or subtrim, no matter).

So, there are exactly 4 points you need to check and then it will surely work.

1) Centres in the Diagnose need to be correct.
2) Servo horns must be centred too, as good as possible regarding the linkage to the servo, and fine trimming in the Trim page in case. This MUST result in mechanically symmetrical ways.
3) Check your heli's balance. It MUST be balanced or a little nose heavy. Nothing else is allowed. (The same as without FBL system, but now 100% necessary.)

And now, if all this is correct, the most interesting point to a lot of people:

4) Even if 1-3 is perfect and your swash is as level as you can ever get it with all the high-tech equipment these days, do not think that every heli will hover perfectly with this ultra-levelled swash setup. A lot don't. So, assuming 1-3 is perfect and the swash level, now lift off and hover, see if and where the heli drifts and, in case, adjust this with the rods from servo to swash. In your case this would be a bit front and left.
Once this is set you'll have a 100% perfect custom setup on your heli, mechanically and electronically. Have fun.

Joachim

[johnjonfenomenon]

Okay .. understood now.. On this Heli before I was running a vbar. and the reason I was able to get a level flight was due to the autotrim fliught feature. When activated the pilots job is to give minimal input in order to get the flight trimmed out. This was done using the cyclics, and not the trim on the TX. It was done for about a minute of flight and when landing and resetting the machine, the system anaylzes the pilolt input and uses that to auto trim the servos for a dynamic neutral position.

[Joachim HC]

I know this....and in fact we have this in the M-series since 6 years....calles Autotrim, and it uses only 8 secs.
BUT: as I mentioned in another thread, I a not a friend of correcting mechanical failures electronically. That's why we went a bit like back to the root to make it not more difficult but mechanically correct, and therefore actually better....in my opinion.

Joachim