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Post by thornton on Sept 2, 2014 21:33:25 GMT
JOHN .... does this work for both servo and brushless motors
i have a mate has made me a setup to use WHEELS for pan and tilt ..two 10 turn
pots and a small cb . with its own power.. that plugs into the trainer port on my tx
its very inexpencive . and has ajustable gearing .. 2.5 turns from lock to lock up to 10 turns from lock to lock
ps i have bort a rnn how is the warm sun treating u ?? TROU BAYLISS
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Post by thornton on Sept 3, 2014 7:03:40 GMT
JOHN can u throw in any tips u may have about PROPORTIONAL MODE its been a while .. cheers TROU
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Post by thornton on Sept 4, 2014 1:43:39 GMT
those HURRICANE WHEELS FOR RC GIMBLES look very cool .... spensif .. trou
i had a lot of success with ..SERVO SPEED ..in my DX8 ..Changed it from NORM ..which is fast .. to 20 its in seconds .. and got a very nice smooth responce ..trou
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Post by JohnC on Sept 7, 2014 12:40:02 GMT
Hi Trou,
Some things to bear in mind with proportional mode:
1) It will obey the 'Max Rate' and the acceleration values when slewing in proportional mode
2) The 'Slow Down' angle is when it starts to slow down as it approaches the angle (because of the acceleration setting). If it overshoots and comes back, this angle needs to be higher. However, when you change the 'accel', it will automatically update the 'Slow Down' angle for you. This value is normally OK.
You should be able to get very nice smooth slewing using the 'Max Rate' and 'Acceleration' settings.
Back in the UK at the moment - supposed to be summer, but been more like Autumn for the last 3 weeks !.
JohnC
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Post by thornton on Sept 22, 2014 20:12:41 GMT
MORNN JOHN ..after focusing all my energy on stabilization ... as we all do .. i have had a bit of time to look at the camera opperators needs ... and theyr..... bloody horrible ... with anything BUT proportional gimbal pan and tilt ... Speed mode will get you a W T F IS THIS SHT comment from any camera op ...I did not realize how shitty rate or speed is .. there is no curtanty or authority over the frame in this mode ... soooo thanks for " propcon " im on a cablecam where precise framing is requiered .... this can only be acheved with . PCL .. Rate mode is like nudging the gimbal with a wet loaf of bread ..never knowing what the outcome of ur imputs are guna be .. its a very important part of the industry ... and if the camera op doesnt like it he wont use it ... even the nomaclature is annoying .. its not yaw its PAN .. its not slew its MOVE .. ...feooow that feels better.. !!
G-LOCK workin great .....on my AV200 with grease packed into the servo gearboxs... takes out ALL the backlash .. and allows higher gains
this is a VERY NEGLECTED AREA OF THE GIMBAL WORLD .. cheers TROU BAYLISS NZ
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trou
Gimbal Cleaner
Posts: 2 
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Post by trou on Sept 24, 2014 1:15:39 GMT
And now for ur puruzle JOHN ... LOTS OF QUESTIONS..
On startup solid green and yellow fast flashs for 30 seconds then solid and allis good
prop mode..PAN GAIN 80% SLEW RATE 20 TO FIXED 10
ACCEL 10 SLOW DOWN 10
TILT GAIN 150 SLEW RATE 20 TO FIXED 30
MAX RATE 40 ACCEL 20 SLOW DOWN 10 How do these look for a cablecam ??
GYRO FILTER 200 can u throw bit more lite on this please..
RC GAIN LOW RANGE .. BIT MORE LITE ON THIS ALLSO PLEASE MATE . CHEERS TROU
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Post by JohnC on Sept 24, 2014 16:38:21 GMT
Hi Trou,
30 seconds sounds a lot for the yellow flash !. The G-Lock is finding the direction of the motor and it usually finds it pretty quick. It might be that the resistors which replace the pot are not quite perfect : can you wee what the motor drive % is once the gimbal has settled down and is stationary ?. There is a button on the config to trim it out if it is more than about 10%.
The gyro filter is the bandwidth for the IMU sensor : you can leave it at 200Hz for the servos. The system is working much faster than the gimbal responds.
Your max slew rate of '20' seems quite low - especially if the operator wants to swing it around quick. It gives a maximum rate of 20 deg/sec. You could set it to around 60 but also change the end-points for the pan to 60%. This will mean full-stick will be 60 deg/sec and should give you the same control at smaller stick movements. This only applies to 'incremental slew' mode though.
The RC-Gain 'low range' just limits the range of gain applied when you use a dial on the transmitter. The 'low range' is just for brushless setups as the normal servo range is way too much for brushless and will send the gimbal crazy.
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Post by thornton on Sept 24, 2014 17:39:52 GMT
JOHN what is "incremental slew mode " is it the same as rate mode or speed mode or angle mode . or is it proportional mode ... cheers TROU
PS Thanks for lighting a few dark corners of the carvec world
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Post by JohnC on Sept 24, 2014 17:56:50 GMT
Yes - incremental slew adjusts the current angle at a speed relative to the stick offset. Proportional is where the stick position is taken as the actual angle required.
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Post by thornton on Sept 24, 2014 18:34:50 GMT
When ..and Why would one use anything other than proportinal .. in a 2 man set up .. ??
Fast pans or Whip pan as they are profesionly known are never used.. except as a special effect shot .
I have to find some way to tidy up the bady neglected area of camera control ......nearly all stablization folks have left this very imortant part sadly unatended .... speed mode ---angle mode -- has to go the way of SERVOS. and be forgotin ..remembered as ... "well its all we had at the time "".. this form of camera control is holding thing back ...KILL IT .. ... P R O P O R T I O A L AAAAAAND BEOOOOOOND ..trou
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Post by JohnC on Sept 25, 2014 19:46:51 GMT
Trou,
I think one of the main reasons is that at the start, a lot of cameraman were RC pilots and felt comfortable flying the camera like an fpv airplane. Also pan doesn't lend itself very well to proportional mode because you can't go 360 degrees on any transmitter.
Also in the old days, it was very difficult to get smooth movement in proportional mode as it needed pots on the gimbal. This never gave control as smooth as continuous-rotation servos. It's only with new systems like G-Lock where you can combine the two.
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Post by thornton on Sept 27, 2014 16:29:30 GMT
SOOOOOO in the interest of accuracy may i use the term. PROPORTIONAL .... OR "" NUDGE"" framing method  ill bet this time next year we will be clear of NUDGE OR PROD framing ... |
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Post by ekefezijeqof on Oct 30, 2019 17:54:51 GMT
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Post by eulozizera on Nov 4, 2019 12:31:04 GMT
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