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Old 12-14-2007, 08:12 PM   #101
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Default A X9303 Video!!

Awsome, I love my 9303 and am looking forward to learning more about it. I know I havn't even scratched the surface on learning everything this radio can do!! =)
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Old 12-14-2007, 11:38 PM   #102
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Yeah, I'm an addict to Bobs build videos!!! The vids are again just awesome!!! Thanks Bob!!!
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Old 12-15-2007, 12:25 AM   #103
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Hey Bob, dont know if you got your 5245 hitecs yet, but I checked and measured the arms that came with mine. The 2 and 4 arm wheels are too small at 13 and 14mm. The cool blue aluminum arm is 16mm at the second hole. The last hole at the end measures at 19mm. They also include a pretty cool adjustible arm with a locking ratcheted slider. So you have almost infinite adjustibilty with that arm. Hope this helps
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Old 12-15-2007, 02:13 AM   #104
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Smile Rebinding the 9303 to RX a second time?

Good Morning Gents,
Thanks for the Vids BOB, what a valuable resource, just a quick question on the JR 9303 segment, you said right near the end that you would REBIND the RX after your set up, why? I thought the bind process was so that the RX ties its self to that particular TX so why do it again or is it just belt and braces, I'm going to get this TX when it gets to the UK so I'm interested in your experience.
Thanks again for your time and effort, I have watched most of your builds and the lessons learnt are invaluable.

regards
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Old 12-15-2007, 02:17 AM   #105
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You need to rebind after setting everything up so the radio system knows where center and failsafe settings are. Whenever you make major changes to your servos, you should rebind.
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Old 12-15-2007, 02:27 AM   #106
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Quote:
Originally Posted by uktwin View Post
you would REBIND the RX after your set up, why?
You want to rebind again so you can get the fail-safe at the right boot-up position. Either at negative pitch or at zero pitch. I prefer to re-bind at zero pitch. If you loose power in a brown-out condition and the receiver resets, the heli can go to zero pitch and float for a while and you may have a better chance of recovering or less damage on the crash.


Edit: beat me to the punch.
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Old 12-15-2007, 02:54 AM   #107
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Thats okay Kev, yours has more infomation
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Old 12-15-2007, 03:53 AM   #108
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Thanks very much for your prompt replies gents, much appreciated, its great to find a forum where there is a wealth of experienced people who will share, so many forums can be real snooty!

Thanks again.

regards
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Old 12-15-2007, 06:35 AM   #109
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Two things:

You might want to try the DuBro Heavy Duty arms (standard, not long). They are nice arms, IIRC they have holes at the perfect liengths.

Second, other than the BR6000 and AR9000, the only fail safe set on binding, is the throttle position. But you do want your initial servo positions set, which are memorized at binding. Just to be sure people understand how Spektrum fail safe works.
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Old 12-15-2007, 09:41 AM   #110
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Quote:
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Second, other than the BR6000 and AR9000, the only fail safe set on binding, is the throttle position. But you do want your initial servo positions set, which are memorized at binding. Just to be sure people understand how Spektrum fail safe works.
Oy, I'm confused. So, unless you're using the BR6000 or the AR9000, then there's no reason to re-bind after you're done with setup?
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Old 12-15-2007, 09:51 AM   #111
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Yes there is a reason to rebind even with the other RX's. As you see we have not set servo reversing or swash settings yet. Thus on power up the servos may jump to a position where they bind up. So after my next segment (coming up this AM) you should rebind again so on power up your servos go to a level 0 swash position and thus dont possibly bind up the servo arms and possibly strip a servo.

In fact just because I like to, after the gyro and tail servo get setup (gain too) even later, rebind again!

Bob
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Old 12-15-2007, 09:58 AM   #112
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I feel like I've bound so much I'm running out of binding.
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Old 12-15-2007, 11:43 AM   #113
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Digital servo questions to Bob and others pros:

If the trex500 requires 16mm to 16.5mm servo arms, and only a few arms provided with the servo will fit this category, will there be an issue with getting the arms 90 degree? Or do we have to use sub-trim extensively to get it 90? Also will the 5245MG, I saw it mentioned the rotation of only 90 degree, will this give enough throws for the swash? Any info on these are greatly appreciated

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Old 12-15-2007, 11:51 AM   #114
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Bottom line it doesn't matter if it is digital or not. If you cant get the servo arm 90 mechanically then you will need to use subtrim! As you can see the provided HS82 servo arms will probably not allow you to get 90 perfect on all 3 servos because there is no way to rotate them and find the best 90 position since they only have one arm. BUT for instance on my 9650's I have a 4 arm wheel and thus can probably find a 90 position.
As for the 5245MG's I dont have mine yet so until I do I cant answer the question yet.

Bob
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Old 12-15-2007, 11:56 AM   #115
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Thank you Bob for the info . I'm eagerly waiting for your Hitec servo video...
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Old 12-15-2007, 01:40 PM   #116
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Stpe 8 servo setup is up!

Enjoy.


Bob
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Old 12-15-2007, 05:51 PM   #117
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You also want to rebind to set the initial output to the gyro so the gyro isn't seeing changes while it initializes.

Someone did a analysis of the steps and came up with 3 bindings, IIRC.
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Old 12-15-2007, 07:39 PM   #118
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Hey Bob, I noticed that while you were putting the frames togeather there were no canopy stand offs, can you put these on after the frames are togeather???
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Old 12-16-2007, 01:41 AM   #119
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Quote:
Originally Posted by Finless View Post
Stpe 8 servo setup is up!
Bob
Hi Bob

Why don't you use servo reversing to make all tree servos to move in the right direction in the first place.
I am fully aware that the end result will be the same, but wouldn't that be more "logical"?

Thanks

Peter
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Old 12-16-2007, 02:24 AM   #120
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Quote:
Originally Posted by psindrup View Post
Hi Bob

Why don't you use servo reversing to make all tree servos to move in the right direction in the first place.
I am fully aware that the end result will be the same, but wouldn't that be more "logical"?

Thanks

Peter
Hi Bob,
I have to admit I have the same thought as Peter, your in the servo reversing menu, why not reverse the 2 going down on up pitch, this must save you messing with the swash menu, 6 of one half a dozen of the other I think, effect is the same,
Either way I know more about swash mixing than i did before. Thanks.

kevin,
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