Posts: 235
Joined: 10/14/2006 From: Navarre,
FL, USA Status: offline
Greetings,
The subject pretty much says it all. I'm thinking hard about ordering a couple UAVP boards to play with, and wondered if anyone else has one. My biggest question is about the ESC. I'm trying to figure out if the standard ESC will work OK for stable video, or if I absolutely have to go with the I2C bus versions.
Posts: 267
Joined: 4/21/2007 From: Huntertown, IN, USA Status: offline
Say it isn't so, Rusty. While I like some of the frames and especially those metal spring type legs, it doesn't look like they can do anything better than the BL DF.
I think you should forget that German stuff and work on a better frame design for the outrunner BL DF.
Also, there may be something new coming from Dammar before long. (just a heads up)
Posts: 235
Joined: 10/14/2006 From: Navarre,
FL, USA Status: offline
Hi Mike,
I really like the open design of the UAVP, because it's much easier to tinker with. At this point in time, the software doesn't support the pressure sensor, or GPS, but the hardware does, and the software is coming. It's tough to say which flies better at the moment. I've seen amazing videos from both, but I certainly can't duplicate any of the hands off hovering that DFI shows. Maybe I can't duplicate the UAVP performance either, but there's only one way to find out.
I've been hearing that Spectrolutions is working on something new for at least a year now. It might be worth waiting for if I knew more about it, but I haven't seen any details. I'm trying to talk myself into waiting until the UAVP implements the GPS, but I'm not good at waiting
Hi Rusty, Regarding the German MK, yes the performance can be duplicated and yes it flies way better even that a brushless converted DF. I can tell because I own one regular DF, one MK and soon one UAVP. Also I've flown one brushless converted DF and although it flies way better than any regular DF, there is no comparison between the converted DF and at least my MK.
So is it worth getting one on these German machines? I would say BIG YES. However you may have to fly one to know what I’m talking about.
Regarding ESCs, if you go the MK way (now that you can buy both the populated escs and the populated main board) you will definitively need I2C compatible escs. Holger’s ESCs are very good I have 8 of the and haven’t had any problem flying my 1100 grams MK with 20-22L hacker motors and a payload of 500 grams for a total of 1600 grams of flying weight. If you go the UAVP way, you can use any PPM controller. There are other controllers like the YGE30i or something like that. I’ve never tried those so I’m not sure how good they are.
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Joined: 10/14/2006 From: Navarre,
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Hi Nick,
Thanks for the comments. I think I might just try the UAVP with standard ESCs for now. Best I can tell, I can change to the I2C version later if I need to. There are some extra mods needed to use the Holger ESCs, but that's doable as well. It's all one big experiment for me, and it wouldn't be fun if there weren't improvements to be made along the way
Posts: 267
Joined: 4/21/2007 From: Huntertown, IN, USA Status: offline
quote:
ORIGINAL: Nicoleto
Hi Rusty, Regarding the German MK, yes the performance can be duplicated and yes it flies way better even that a brushless converted DF. I can tell because I own one regular DF, one MK and soon one UAVP. Also I've flown one brushless converted DF and although it flies way better than any regular DF, there is no comparison between the converted DF and at least my MK.
So is it worth getting one on these German machines? I would say BIG YES. However you may have to fly one to know what I’m talking about.
Regarding ESCs, if you go the MK way (now that you can buy both the populated escs and the populated main board) you will definitively need I2C compatible escs. Holger’s ESCs are very good I have 8 of the and haven’t had any problem flying my 1100 grams MK with 20-22L hacker motors and a payload of 500 grams for a total of 1600 grams of flying weight. If you go the UAVP way, you can use any PPM controller. There are other controllers like the YGE30i or something like that. I’ve never tried those so I’m not sure how good they are.
Regards Nick
Nick,
It is very good to have feedback from someone that has flown the converted and original DF as well as the german units. Can you be a bit more specific on the differences you notice with the flying. Also, I only knew of four people that have completed the DF brushless conversion so I'm surprised to hear that you have flown one. Guess there are more out there that have not commented about their successful conversions.
I admit that if the MK was English language based development project, I would be right in the middle of it. It just seems so difficult to deal with a project which requires language translation.
BlackDragan: It should not be long. I'll spill it when I am allowed.
I do have the original DF V ti ,replaced it's board by the new x-ufo board (and flies way better) and also have an uavp. The uavp does fly very stable ,better than the df and x-ufo mod,even with normal (yge30) ppm esc's.Mine is quite large which does help stability a lot..but there is still a need to steer the machine.
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Joined: 10/14/2006 From: Navarre,
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quote:
ORIGINAL: flyingdutchie
I do have the original DF V ti ,replaced it's board by the new x-ufo board (and flies way better) and also have an uavp. The uavp does fly very stable ,better than the df and x-ufo mod,even with normal (yge30) ppm esc's.Mine is quite large which does help stability a lot..but there is still a need to steer the machine.
Thanks Dutchie. I just ordered two pre-populated UAVP boards and PICs last night, so I guess I'll give them a try. The sensors come from a place in the US, and are much cheaper to buy here than to order from LiPoly, so that's what I'll do. It should be a really fun project, and maybe they'll have the GPS working by the time I get it finished.
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Joined: 10/14/2006 From: Navarre,
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Greetings,
Since this was my thread originally, I guess I'll use it for UAVP updates.
I decided to go with standard PPM ESCs, and built my first UAVP with 3- ADXRS300 gyros, an LIS3LV02DQ acceleration sensor, and HMC6352 compass module. For motors, I'm using TowerPro 2410-09 (less than $6.50 at UnitedHobbies). The ESCs are H-Wing Pentium 10A also from UnitedHobbies. Props currently EPP1045. The first frame was all aluminum, using 1" diameter .032" thick round tubing. It flew fine, but was REALLY heavy, 38.4 oz without the battery I named it the "aluminum pig"
Next, I made another Supersized Draganflyer frame, using solid CF rods instead of tubing. The main arms are 333 mm long, and the total weight was a MUCH improved 22.8 oz without battery. This flies even better, but the frame has too much flex. Hopefully, I'll be testing the Rev-3 frame this weekend.
So far, I really like the UAVP, though I may never get finished fiddling with flight parameters. The ability to customize all the parameters is simultaneously good and bad news. With power, comes responsibility
Posts: 235
Joined: 10/14/2006 From: Navarre,
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Here's the rev-3 frame that I'm currently testing. It's smaller, at only 18.5" from rotor to rotor, but the flying weight is only 25.8 oz with a 2000 mah 3S lipobattery
Cheers, Rusty
< Message edited by 13BRV3 -- 10/28/2007 2:22:37 AM >
Posts: 235
Joined: 10/14/2006 From: Navarre,
FL, USA Status: offline
quote:
ORIGINAL: Onelegna
Rusty how many grams do you think you can lift?
Me or the UAVP
I've done the semi-official max lift test, where I put the model on a scale, weigh it down so it can't fly, then read the scale with zero and 100% throttle. I measured 81 oz (2296 grams) of lift, but of course this is more than you could really fly with. Even at a conservative flying weight, there should be plenty of payload capacity.
BTW, the rev-3 frame isn't working out so well. There are just too many problems with the tubing splitting at the bolt holes, and anywhere it's clamped. Rev-4 design is underway, and should have much improved clamping of the tubing. It will certainly weigh more though, probably 3-4 oz more.
Posts: 235
Joined: 10/14/2006 From: Navarre,
FL, USA Status: offline
Rev-4 has flown, along with rev-4a The new frame is about 6 oz heavier, but it's so much superior to the rev-3 construction that it's well worth the weight. I think I can take some weight off rev-5, without losing any of the good features of the new clamps, but I'm not sure when I'll get around to it.
Some of the pictures show the rev-4 frame when I had the motors almost at the ends of the 1m arms (500 mm on each side). Flight testing showed that there was almost no yaw authority due to the fact that the motors were too far from the center of the craft to effectively translate torque into yaw. I ended up moving the motors into about 625mm span, and it flies absolutely GREAT!
At one point, I was able to hover in a corner of my back yard for over one minute without touching anything but the throttle
Cheers, Rusty
PS- The last picture is obviously the two on top of each other. However, I could certainly do this... Rev-5 anyone PPS- I few frame ideas were clearly, well... "borrowed" from Mike's 1000mm DF
< Message edited by 13BRV3 -- 11/12/2007 1:15:42 AM >
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Anyone here building a UAVP? - 
I named it the "aluminum pig" 
