Does any one think it possible to port over the cgo3+ lens or any other lens that's compatible with the cgo3+ to the e50 maybe as a inexpensive alternative to the e90 that giving some users fits?
e50 lens question
- Thread starter terrence davidson
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Peggy
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Even if you could it won’t fix the jello effect that a lot of E50 users experience.
what if the jello effect is caused by the current lens on the e50. I remember a few post regarding the cgo3+ lens atleast in part certain after market lenses of certain sizes may induce such a issue if installed on the cgo3+ camera.
arruntus
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The jelly effect is a tremor. How can a lens cause it? I can only think of it happening if the lens is loose, moving.
you have a point on that. wonder if changing the dampers can help. switch out the e50 lens for the cgo3 plus lens and then change the e50 dampers to the cgo3 dampers. main question is where the exact location that tremors come from on the gimbal and the counter measures to deal with it.
PatR
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Tremors are usually harmonic induced, gimbal motor deficiencies, or PID issues. The harmonics can be dealt with if the frequency can be determined and dampers designed for that frequency used on the gimbal. If a lens is too heavy or its center of gravity is to far from the center of the gimbal, inadequately sized gimbal actuators will shudder trying to stabilize the weight. Same thing happens if voltage is too low when fast PID’s are set up.
When they are designed and built right these little gimbals are software optimized for but a single lens application. Any change in weight or lever arm from OEM state will destabilize them.
When we consider these systems have been designed around what I call the “law of minimums”, meaning the smallest, lightest, cheapest component available for any given portion of the system, we might figure the gimbals are already being pushed to the edge of their capabilities.
When they are designed and built right these little gimbals are software optimized for but a single lens application. Any change in weight or lever arm from OEM state will destabilize them.
When we consider these systems have been designed around what I call the “law of minimums”, meaning the smallest, lightest, cheapest component available for any given portion of the system, we might figure the gimbals are already being pushed to the edge of their capabilities.
Are we talking tremors the same as the vibrating gimbal, as has been discussed previously?
The vibration of my E50 was “cured” by replacing the grease filled original dampers with those for the CGO3+.
About 30 minutes of flight is all I could test so far. Seems the compass calibration would not complete without sensor warnings emitting from the ST16s so it was decided to have the compass/GPS checked out along with the controller.
Once I get them back I will definitely perform some extensive testing and post the official results along with the full, albeit condensed story.
Jeff
The vibration of my E50 was “cured” by replacing the grease filled original dampers with those for the CGO3+.
About 30 minutes of flight is all I could test so far. Seems the compass calibration would not complete without sensor warnings emitting from the ST16s so it was decided to have the compass/GPS checked out along with the controller.
Once I get them back I will definitely perform some extensive testing and post the official results along with the full, albeit condensed story.
Jeff
arruntus
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You're not the first one to talk about calibration problems. I also get errors when calibrating, but then everything seems to work correctly. A colleague has reported the same to me. In this case I am talking about the E90. It may be something in common. 
You're not the first one to talk about calibration problems. I also get errors when calibrating, but then everything seems to work correctly. A colleague has reported the same to me. In this case I am talking about the E90. It may be something in common.
But how does your H520 perform as far as hover and holding position?
It’s initial flights, when it did not balk during compass calibration, mine could hold steady being a foot off the ice, literately in its landing crater I dug out of the snow. Now, given the audio errors and warnings, it behaves more like my H480s. Doesn’t wander off, but does not hold a steady position either.
There’s more to the calibration problems, but no time to list in this reply.
Jeff
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Terrence,
Replying directly in case you have not seen my post #9. Dampers made a difference with my E50. More to follow once my H520 returns home.
Jeff
Thanks but your compass issues that you are having I have to deal with my self with the e90 to get around it i had to slow down greatly how I rotated the h520. also if you have this expect issues with the accel calibration to get around that pain in the rear if you have the e90 you have to hold not only h520 steady but the e90 camera as well due to gimbal vibrations. this started with the 1..3 firmware. did not have this with 1.2. currently downloading all logs right off the h520 craft. controller logs are not good
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