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Post by JohnC on Jun 2, 2014 8:31:17 GMT
Normally you would never use negative values for the gain.
You only check the proportional box if you want to control it with absolute position - eg with a dial or a shoulder-lever on the radio.
And for power-up, it will normally hold off the initialisation until it is still so it should be OK. If it keeps moving it will abort after about 40 seconds and revert to the calibration data so it will in fact initialise on a boat or whatever. It needs to be properly calibrated for that (which it should be pretty close already).
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Post by thornton on Jun 6, 2014 16:37:11 GMT
THANKS JC ....LIGHT GREASE paccked into the servo gearbox does get rid of a lot of backlash ..alowing more gain ..but be carefull its easey to overload the motor. question JC .....ON start up roll cranks over about 10 degrees . left down ....and i have to bring it back to level with the stick. how do i correct this please ... also.. is it best to start up in fixed mode ie locked ..or start up in stablized mode .. cheers trou
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Post by JohnC on Jun 8, 2014 11:36:27 GMT
Trou,
It is most likely that your resistor pack is way out for the servo. Never fear though : the G-Lock has a trimming feature. Once the servo has settled at the 1- degrees left down, select the axis in the G-Lock software and click the 'Set' button in the 'Stab Servo Trim' box and then write it down to the G-Lock.
I don't remember if you have a variable pot on there or two resistors. If it's a pot, you are better off adjusting it instead of doing the trim 'Set' as I described above. What you need to do is let the gimbal initialise then adjust the pot until the 'Servo Out' indicator bar goes to zero.
The G-Lock actually auto-trims this output but has a limit of +/-20% for this trim. If the pot is way out then it can't go far enough.
I would normally start up in fixed-position so it stays at a known angle until the radio is turned on.
JohnC.
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Post by thornton on Jun 8, 2014 18:09:56 GMT
MANY THANKS JC ...Remember the answers to my quesrions are of great interest to many others .. and benefit the whole growing G-LOCK community ..
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Post by JohnC on Jun 8, 2014 19:11:06 GMT
Hey Trou - did that fix it ?. What value did it put into the trim box ?.
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Post by thornton on Jun 8, 2014 20:07:08 GMT
Not yet .......im working on a 3 position focus thingy .. using the 3 pos flap switch . and a sailwinch servo ...pos 0 infinity pos 1 some what less ..pos2 even closer .. BUT ALL PREDETURMINED. and speed controlled .. start with pos 1 and adjust servo gear to the middle focus desired...then travel adjust pos 0 to infinity ... then travel adjust pos2 to ur closest focus required .. DX8 has servo speed control .. servocity has great ali servo hubs for mounting gears on .. this is a good fix for the slopy roll gear on an AV 200 ... THINK ITILL WORK JOHN
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Post by thornton on Jun 11, 2014 20:51:03 GMT
JC u got any imediate feelings bout TORXIS SERVO ..from IVENSCIENCE ??
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Post by JohnC on Jun 12, 2014 7:35:36 GMT
Wow, that's a brick of a motor !. I'm afraid I nave never worked with something like that.
The first question would be how easy it is to modify to continuous rotation. The picture of the gears looks pretty standard - so I imagine it is just a pot like regular ones.
Other than that it is the $350 question !. I would say that it will work, but the unknown is how smooth and precise the end result is.
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