Wookong-M wind stability
- Thread starter RTRyder
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jffry7
aka TruckBasher
I have those LG and 2 axis camera mount. I thought the one I got was prototype as the photos on site this was sold was different a bit. I tried to replace the roll servo with align rudder servo, hitec ones but it will still twitch until it oscillates like crazy. For the tilt same issues as well it will bod/nod. I hope savvox can fix those issues, I havent tried those yet. My RC carbon mount was dismantled and I am only using the goPro housing to protect the gopro on a Jakub's mount.
Yes, true but unfortunate. CC is a noble project but from what I've seen it will never be a dominant force in the world of RC. They just do not have the infrastructure or resources to allow it to be something that can be relied on to work 100% of the time as it would need to be for commercial use. It is a hobby controller and that is all it will ever be I believe.
I'll find out soon enough, the Savox servos are sitting on the workbench waiting to be installed. Because it's a direct linkage mechanism it will never be a s smooth as a gear or belt drive but at least the WKM controller allows some degree of tuning on the camera mount servos so I should be able to get an acceptable level of tilt and roll. If not I'll convert it to belt drive which will probably involve redesigning quite a bit of what's there but that's not unusual for the multirotor hobby so you do what you have to do to make it work!
Ken
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Ken: I am doing a similar build. I will be interested in seeing how the Savox servos work for you. What settings and hardware are you currently using? My build includes RCTimer 2830/14, EPP 10x4.5, Turnegy Plush 30A, 2x3S 2200mAh. I would like to go to 4S and am considering 11x3.8 props. Your thoughts? Thanks!
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Ken:
Found your build answered most of my questions, http://www.multirotorforums.com/sho...d-(Build-Thread)&p=12193&viewfull=1#post12193, I am still interested in your experience with the Savox servos.
Found your build answered most of my questions, http://www.multirotorforums.com/sho...d-(Build-Thread)&p=12193&viewfull=1#post12193, I am still interested in your experience with the Savox servos.
I've just spent the last 2 hours installing the Savox servo on the tilt axis of the mount. A lot of that time was spent "fixing" some build quality issues that needed attention before this mount was ever going to work right. Little things like the aluminum standoff that holds the top and bottom plates together in front of the bearing housing for the tilt axis on the servo side was fighting with the bearing housing to occupy some of the same space. The housing lost and was sitting crooked in between the side plates until I removed the standoff and made a clearance notch in the middle of it with a Dremel for the bearing housing to sit where it needs to be and not be pushed out of place by the standoff. The assembly tolerances on this thing are fair to bad at best and it's close to being a tear it apart and reassemble with some newly machined bits to make everything line up project. Did I mention the standoffs between the top and bottom plates on the servo side are slightly different lengths? No? Ok, they are but shouldn't be... and the bearing housing on the opposite side of the tilt axis was also fighting with the standoff in front of it although not quite as bad as the other one, I only had to make a small notch in that one to fit it in place without pushing on the bearing housing. How they ever managed to put this thing together in the first place amazes me!
Now that it all sort of fits together without bits hitting other bits and the axles for the GoPro cage are more or less aligned, it moves quite smoothly with the new Savox servo in place, about as smooth as you're ever going to see from a direct drive. Nice pieces those Savox, well worth the $$ IMO. Oh, and it wasn't quite a direct swap, the output shaft sits a bit more to the rear on the Savox than on the brand X that came on it so I had to lengthen the slots for the plate that holds the servo so it could slide forward a couple mm to line up with the shaft. Nice smooth movement now, nothing at all like the clunky grinding feel it had with the old servo. Tomorrow I tackle the roll axis, so far it looks like this one will go a lot easier mainly because the connection between the servo and the mount is adjustable linkages so the placement of output shaft isn't as critical as it was on the tilt.
Somewhere here I listed out all the parts, let me see if I can find which thread it was in... OK, go here and it's all in the post... http://www.multirotorforums.com/sho...d-(Build-Thread)&p=12193&viewfull=1#post12193 What I've found with the WKM is it doesn't like 11 inch props unless you're lifting a lot of weight with some stout motors and batteries, they work really well on my hex with a RTF weight of a bit over 9 pounds. Tried the same props on the quad when I was doing the initial setup and it wobbled like crazy. Changed back to the 10 x 5 and it was a completely different machine. With the 925KV motors it will fly on 3S but its not real happy, the motors are working hard and the battery life isn't good. Swap the 3s for a 4S 5000 and it's exactly what it needs, the motors and ESCs are nice and cool after 10 minutes in the air and there's plenty of power to move it around, felt really sluggish on 3S. Best thing to do is try yours with the 10 inch props on both 3s and 4s and if it works well on 4s go with that setup unless your RTF weight is over 6 pounds then it might work with the 11 inch props.
Ken
Now that it all sort of fits together without bits hitting other bits and the axles for the GoPro cage are more or less aligned, it moves quite smoothly with the new Savox servo in place, about as smooth as you're ever going to see from a direct drive. Nice pieces those Savox, well worth the $$ IMO. Oh, and it wasn't quite a direct swap, the output shaft sits a bit more to the rear on the Savox than on the brand X that came on it so I had to lengthen the slots for the plate that holds the servo so it could slide forward a couple mm to line up with the shaft. Nice smooth movement now, nothing at all like the clunky grinding feel it had with the old servo. Tomorrow I tackle the roll axis, so far it looks like this one will go a lot easier mainly because the connection between the servo and the mount is adjustable linkages so the placement of output shaft isn't as critical as it was on the tilt.
Somewhere here I listed out all the parts, let me see if I can find which thread it was in... OK, go here and it's all in the post... http://www.multirotorforums.com/sho...d-(Build-Thread)&p=12193&viewfull=1#post12193 What I've found with the WKM is it doesn't like 11 inch props unless you're lifting a lot of weight with some stout motors and batteries, they work really well on my hex with a RTF weight of a bit over 9 pounds. Tried the same props on the quad when I was doing the initial setup and it wobbled like crazy. Changed back to the 10 x 5 and it was a completely different machine. With the 925KV motors it will fly on 3S but its not real happy, the motors are working hard and the battery life isn't good. Swap the 3s for a 4S 5000 and it's exactly what it needs, the motors and ESCs are nice and cool after 10 minutes in the air and there's plenty of power to move it around, felt really sluggish on 3S. Best thing to do is try yours with the 10 inch props on both 3s and 4s and if it works well on 4s go with that setup unless your RTF weight is over 6 pounds then it might work with the 11 inch props.
Ken
Emowillcox
Member
HI Ken... thanks for sharing all the info... video looks like something from a south african rain forest :nevreness: You make a great point about
having a small machine that can get into tight places.. that is a future goal for me to have a big machine for hauling heavy cameras and then to
have smaller.. hopefully less expensive rig that I can take into some tight places and do some more daring type stuff.
So over all once you replace those servos do you think the rccarbon mount will be reasonable.. how about RCcarbon.. do they seem like a decent place to get stuff?
having a small machine that can get into tight places.. that is a future goal for me to have a big machine for hauling heavy cameras and then to
have smaller.. hopefully less expensive rig that I can take into some tight places and do some more daring type stuff.
So over all once you replace those servos do you think the rccarbon mount will be reasonable.. how about RCcarbon.. do they seem like a decent place to get stuff?
I also tried Savox, beautifully made but the ones that I tried did not have good resolution. One thing that also springs to mind is that many radios do not transmit a high resolution signal outside of the four main primary control sticks. The MZ 14 for example only can use digital servos on the first six channels. Also the CD rotary switch is the only output that has the fine enough output for a camera movement. I only recently discovered this as I normally use a separate Tx. for the camera.
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That's no south African rain forest, that's my backyard! Actually it's the wetlands that sit behind my backyard between this neighborhood and the main road over on the other side of the swamp, sometimes I find it hard to believe this is on the edge of a heavily developed major metropolitan area.
I don't know about the RC Carbon, the build quality doesn't justify the price they're charging IMO. If could have bought the mount for maybe half of what I paid for it without the crap servos then maybe it would have been worth it to have to fix all the problems before it could be used. The selling price doesn't match up with the quality of what I got for my money. Unfortunately it's one of the few decent looking designs for a GoPro 2 axis mount that looks like it can actually work well but unless the quality has improved dramatically in the past two months I would hesitate to recommend it to anyone unless you don't mind doing the work it will take to make it useable after spending the $. This is one of those instances where I wish I could have held one in my hand and had a good close look at it before buying, I would have passed on it if I had seen this particular one up close first. The landing gear is better but still has some rough edges that need to be addressed, overall I'd say if you have an alternative for similar equipment elsewhere go with the alternative if you can get some good reports on it. If you absolutely have to have this particular mount just be aware of you're buying up front. So far it looks like it will be decent once I get done rebuilding it, but I've also just added $110 to the cost of it for the Savox servos and some new hardware, making it a rather pricey ($370 total for just the modified mount) way to hang a GoPro, and only a GoPro, under a multi.
That's interesting, I have several of them now and find them to be one of the best brands available at the moment. Part of the attraction is that they do have very good resolution compared to a large majority of the other servos on the market and they work well with either an analog servo output of 50 hz or the much higher digital servo outputs of 300 hz and higher. I now have them connected to both an MK flight controller and the WKM and in both cases they exceed the performance of the Hitec, Hyperion, and brand X servos they've replaced.
The AV130 comes with Savox servos, the RC Carbon GoPro mount I'm working on has these weird brand X servos. The label says Artun USA which I find odd because I've never heard of them before, can't find anyplace in the US that sells them, and apparently the only thing USA about them is the fact that a few sets have wound up here! Made in Taiwan from the finest recycled materials and substandard electronics available...:suspicion:
Ken
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jffry7
aka TruckBasher
That's what I wanted to say, having a non-English native tongue is not working for me. Basically the RC Carbon have great designs/ideas but was implemented poorly. I have the whole small Spy combo and almost half of whats on it was useless and had to modify (including the camera mount). Its not that bad but considering the price you paid its not worth it. Might as well spend a few more for better ones semi pro ones or of if you want cheap go for the cheap ones that works. There are a lot apparently. I like my Small Spy (after mods) but I think the QA is where RC carbon failed having bent arms misaligned motor mounts and uneven LG legs. Sadly I lost contact to Sergej after I got the items, he did send me the foldable small spy Y6 frame which looks fairly good (quality) but dont even want to start building that.
By the way Ken the small spy is quite nice (if you have the good ones) for small applications @ 510-520mm motor/motor with 11x5 prop is handy for tight places but with gopro only partnered with the simple mount. (just suggesting as noted on your signature "one of everything")
By the way Ken the small spy is quite nice (if you have the good ones) for small applications @ 510-520mm motor/motor with 11x5 prop is handy for tight places but with gopro only partnered with the simple mount. (just suggesting as noted on your signature "one of everything")
Emowillcox
Member
Wow Ken so you go the African Rain forest right in your backyard :frog: that is very cool!
I found pretty good quality video on Vimeo earlier this week and the guy is using this mount.
View attachment 1274
Here it is on EBAY.. Wonder if anyone on here has any information on this mount? I thought about trying to order one, but I don’t read German and these guys didn’t respond t my english email.
http://www.ebay.de/itm/Kamerahalter...C_Modellbau&hash=item3cbcf687b3#ht_895wt_1163
I found pretty good quality video on Vimeo earlier this week and the guy is using this mount.
View attachment 1274
Here it is on EBAY.. Wonder if anyone on here has any information on this mount? I thought about trying to order one, but I don’t read German and these guys didn’t respond t my english email.
http://www.ebay.de/itm/Kamerahalter...C_Modellbau&hash=item3cbcf687b3#ht_895wt_1163
Attachments
jffry7
aka TruckBasher
That was the German mount I was also looking, Daniel (ebay) said he ship out of Germany but I wanted the carbon fiber version then he never replied back. That's the same mount as Icke84, Marcus Gelhard (i think he is also in this forum and rcgroups) he have great videos with it on an X650 V8 like this one
http://vimeo.com/29426184
http://vimeo.com/29426184