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Viewing 15 posts - 1 through 15 (of 464 total)
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  • in reply to: Micro Bi-Copter – ARDUPILOT #61270
    LitterBug
    Participant

    Nice looking Bi. I’ve been looking at Ardupilot lately now that it runs on many standard F4 boards. Looking at your example and another RCExplorer bicopter, keeping CG low is a good thing.

    Here’s the video of an RCExplorer Bi running ArduPilot I found last night including high speed rearward flight.

    Cheers!
    LitterBug

    • This reply was modified 1 year, 5 months ago by LitterBug.
    • This reply was modified 1 year, 5 months ago by LitterBug.
    in reply to: LitterBug's RCExplorer BiCopter build thread #61260
    LitterBug
    Participant

    EZbi rewiring with Matek F405-STD complete. Dual servo feedback tested.
    EZbi F405STDtest

    Just need to button it all up and take it to the indoor fly Friday night.

    Cheers!
    LitterBug

    in reply to: Help!? Tricopter v4 still a viable option in 2019? #61254
    LitterBug
    Participant

    Looking forward to V5 myself. I’ve got two Baby Tris and two Mini Tris but have not built one of the larger V# tris. Most of the parts are interchangeable with the Mini Tri so technically I could just put longer arms on one of my mini tris and put the battery tray on it to convert it to a V#. Support for F3 processors is dwindling down, but it is still a very viable flying machine. Here’s RAW, unstabilized, FPV footage from one of my mini tris:

    Just think how smooth that would be with a sabilized GoPro or Runcam. 😀 I used two base plates modified with 30×30 FC bolt holes rather than the integrated PDB/FC board to build mine, so it will be easy for me to upgrade to the Kakute F4 V2 FC that @David is now selling in the store.

    Cheers!
    LitterBug

    • This reply was modified 1 year, 5 months ago by LitterBug.
    in reply to: LitterBug's RCExplorer BiCopter build thread #61251
    LitterBug
    Participant

    Proof of concept. It’s readable, but not currently used in calculations.

    EDIT: yay! Found my T5 to get the servos open!

    in reply to: LitterBug's RCExplorer BiCopter build thread #61248
    LitterBug
    Participant

    BAM…. And then an explosion occurred:
    EZBi ReFCification

    Mid Re-FC-ification of the EZbi. Pulled The DTFc flight controller/PDB and replaced it with A Matek FCHUB-A5 PDB and F405-STD. Ribbon cable pinouts are different between the PDB/FC so had to manually solder Gnd, 5V, Curr, and VBat. Keeping my HV UBEC for the servos for faster response. Now if I could just find my nano Hex tools to get the @)#($ bolts out of the servos to add feedback…

    I’m using the Impossitilts on everything. Baby Tris, Mini Tris, and Bicopters with no issues. I’m using PLA and have my settings tweaked to the point where these things are pretty much indestructible even when trying to break them. Different colors too! 😀 Using high heat for better layer adhesion, .1mm layer height, 100% infill, and fairly slow print rate. All these parts have been printed on a MonoPrice Select Mini V2. (the EZbi plates are only 20% infill)

    Cheers!
    LitterBug

    • This reply was modified 1 year, 5 months ago by LitterBug.
    in reply to: LitterBug's RCExplorer BiCopter build thread #61241
    LitterBug
    Participant

    Back to working on both my EZBicopter and RCExplorer Bicopters. Trying to use what I learn from both to make both fly better. Here’s some footage from the EZBi when I had @kevin_erik’s ducts on.

    EZBi with Ducts
    I’ve de-ducted it since then and it flew very well at another event but I did not have my gopro handy.

    I’ve found that a combination of @Terje’s AKA @dkdarkness Impossible Tilt https://www.thingiverse.com/thing:1035497, and BabyTri Impossible Tilt https://www.thingiverse.com/thing:2869393 has worked best for the EZBi and am currently re-outfitting my RCExplorer Bicopter with the same hardware.

    ImpossiTiltEXploded

    I’ve also found that the DALPROP T5044 props that @kevin_erik recommended for his ducts seem to fly better on the EZbi than the props I have been using even with the ducts removed. They are both light, and have a good profile which gives better clearance around the servo.
    ImpossitiltAssy

    Working on updating the EZbi from an F3 based DTFc Flight controller to a Matek F405-STD and adding servo feedback before next week’s indoor fly. Should be interesting to see if there are any differences on either build.

    I’ve got all of @jihlein’s latest firmware on the F3FC, DTFc, and F405STD too.

    Cheers!
    LitterBug

    • This reply was modified 1 year, 5 months ago by LitterBug.
    • This reply was modified 1 year, 5 months ago by LitterBug.
    in reply to: Tricopter build with yaw concept #60916
    LitterBug
    Participant

    I’ve got a handful of baby tris, mini tris, etc… all running dRonin. One thing I will throw in here is that the more overpowered I have built my Tricopters, the more I have to DROP the P/I below the defaults before running an autotune (ie 1/2 – 1/3). Hot motors are a good indication of some serious oscillations. Throwing autotune on top of an already oscillating bird is a quick way to burn up motors.

    Cheers!
    LitterBug

    in reply to: RCE BiCopter with sOAT Control #60914
    LitterBug
    Participant

    Now that I have my RCExplorer BiCopter flying, I’m going to work on getting my 3D printed Bi going with the ducts Kevin printed, and will also test the sOAT mounts I printed. Hope to have some vid later this week.

    Cheers!
    LitterBug

    in reply to: LitterBug's RCExplorer BiCopter build thread #60913
    LitterBug
    Participant

    WOOT WOOT! Maybe not the best weather to be flying outdoors, but managed to fly for the first time in several months friday night. Packed the RCE Bicopter in and picked up where we left off with nasty oscillations hovering on default PIDs with dRonin. Took a cue from some emails a few months back that it is YAW oscillations, not pitch and dropped Yaw P/I to 15/15 and it hovered smooth as glass. My buddy did a slow motion vid of it hovering before I popped it in to autotune. I’m still running @jihlein’s dRonin branch for my firmware on the F3FC.

    Ran out of time to do any more flying, but have another indoor fly coming up later this week.

    Cheers!
    LitterBug

    • This reply was modified 1 year, 6 months ago by LitterBug.
    in reply to: LitterBug's RCExplorer BiCopter build thread #59547
    LitterBug
    Participant

    @david, hoping to hit the field tonight. Been crazy busy lately with family, job, weather, dead wheel bearings, etc….

    Cheers!
    LitterBug

    in reply to: RCE BiCopter with sOAT Control #59471
    LitterBug
    Participant

    Have a sOAT Impossible tilt mount in the works, and have completed initial testing on whats left of EZbi#2 and with one of @Kevin_Erik’s ducts.

    https://www.thingiverse.com/thing:3098210

    Cheers!
    LitterBug

    in reply to: Kakute F4 as the next FC on the RCExplorer store? #59241
    LitterBug
    Participant

    I pinged one of the lead dRonin devs. Currently no support for the icm20689, but he seemed to think it might be an easy add if it is much like other InvenSense MCUs. Would still need to build an official target for it too, Time/difficulty would depend on mappings.

    I’ve also forwarded the link to this thread to @jihlein in case he hasn’t seen it. Currently dRonin support for the F3FC and Matek F450-CTR are by unofficial targets he has created.

    Cheers!
    LitterBug

    in reply to: Kakute F4 as the next FC on the RCExplorer store? #59227
    LitterBug
    Participant

    Hi @david,
    At a quick glance, it seems very limited on PWM outs with only 4. Depending on the resource mapping, that could be problematic. http://www.holybro.com/manual/HolybroKakuteF4V2Manual_v1.1.pdf

    LitterBug

    in reply to: LitterBug's RCExplorer BiCopter build thread #59206
    LitterBug
    Participant

    Results from testing the Oblique vs Standard were good. I still had slow pitch oscillations, but didn’t have to touch P/I on any of the Axis to get it there. I need to work on an oblique tilt with the Impossible tilt mount built in. Should be an easy add. That will make for an easy switch to oblique on EZbi#1 with the ducts too.

    Cheers,
    LitterBug

    EDIT: Like this:
    ObliqueImposiTilt

    • This reply was modified 1 year, 11 months ago by LitterBug.
    in reply to: LitterBug's RCExplorer BiCopter build thread #59196
    LitterBug
    Participant

    Man, that looks really clean @jihlein! Makes me wish I would have started with new boards rather than using my old boards that have been soldered up about 6 times. 😀

    @Kevin_Erik sent me some ducts to play with, and since it is non-stop raining here again, I had some time to get them set up on EZbi #1.
    EZbi #1 with Ducts

    For the most part, the EZbi flight characteristics match what I have on the RCExplorer Bicopter. I built EZbi#1 with plugs on everything to make changes simple, so it was just a matter of swapping the motor holders for the ducts, with a slight mod to the hole in the duct to allow my wrench to fit through.

    Waiting on dryness…. and free time. 😀

    Cheers!
    LitterBug

Viewing 15 posts - 1 through 15 (of 464 total)