Welcome, Guest | You have to register before you can post on our site. | Forum Statistics | » Members: 17,310 » Latest member: k2bow » Forum threads: 22,785 » Forum posts: 207,168
Full Statistics | Online Users | There are currently 171 online users. » 6 Member(s) | 160 Guest(s) Applebot, Bing, Google, Internet Archive, Yandex, angent56, FPVme, Grakalem, MomoBrut | | | Brushed 65mm whoop and probably some brushless 65/75mm whoops | Posted by: Lemonyleprosy - 11-Apr-2023, 08:03 AM - Forum: Tiny Whoop & Micro Quad - Replies (60) | | This thread will be some 65mm and 75mm brushed and brushless builds. First up is a 65mm brushed build. Frame: Inductrix 65mm AIO FC: Alienwhoop Project Zer0 Brushed AIO FC, F0 mcu 1-2s 2.25A (?!) 5v bec Motors: NewBeeDrone BDR Unicorn 6mm Brushed 25500kv (NBD has these on blowout for $5.99 for a 4 pack) Cam: Some random backpack aio cam/vtx combo. RX: HM EP2 (This board doesn't support CRSF protocol, so I'm flashing this rx with ELRS v3.3 to get true SBUS output) Battery: Tattu 300mah. I'm using ph2.0 connectors because that's what I've got. Props: NBD Azi 0.8mm tri-blades or quad-blades. I've never been a fan of brushed whoops. I find them to be underpowered/unresponsive and a bit gutless. These motors are significantly higher kv than I've tried in the past, so I'm hoping they will change my mind. This fc has been sitting on my shelf for 2 years. It came in my first purchase of a used whoop lot- the original owner said it needed to be reflashed. At the time I was just learning how to set up betaflight and flash esc's, so I wasn't about to try to figure out how to flash an fc that didn't even have a usb port and used a completely different firmware. So, it sat on my shelf, and I completely forgot about it. After Hugnosed posted a Silverware whoop build in the new Silverware/Quicksilver section of this forum, I remembered that I had it. When I finally opened up the box for the first time, I discovered that it also had a JHEMCU Beecore f4 brushless AIO fc in the box. I'm gonna go ahead and take that as a sign that I should also build some 65mm and 75mm brushless whoops. I'm really not sure of the specs of the jhemcu beecore board. Guess I'll find out. It'll work or burn out on a brushless build. Anyhow. These brushed motors are a high enough kv that I expect to have to let them rest and cool down between batteries, so yeah, if I'm gonna do some proper whooping, ima need a couple brushless builds to fly while it's cooling down. The previous owner was kind enough to leave me a programming harness. The ground wire is loose, that might be why the original owner had issues flashing it. I'll be removing this harness to save weight after I flash it. This board can only run Silverware. It cannot run Quicksilver or BetaFlight. Managed to find a user manual for this board: https://cdn.shopify.com/s/files/1/2371/1...0424752178 A couple important things to note: This board defaults to props out. Apparently if you try to flash this board with your rx bound and your tx on, it can brick the board. May or may not be unbrickable. So, make sure that either your rx is not attached, or if it is, that your tx is off. Okay, I'm gonna follow these youtube videos to compile and flash Silverware to this board: Those directions didn't fully work for me. I'm using a knock-off st-link v2, and in order to connect, I had to use the outdated st-link utility to update the firmware on the dongle, and then run stm32 cube. Then I was actually able to connect to the zer0 board and do a full chip erase. Hopefully that cleared out whatever the previous owner of this board did. Time to open up Keil and figure out my settings. Alright, I officially don't know wtf I'm doing. Keil didn't want to connect or read my shit. That means I can't customize anything. But, stm32 cube will allow me to read, erase, and write to this board. I think I managed to flash the sbus version of silverware to this board. Maybe? We'll find out- if it arms and spins a motor, we're good. Alright, before I can try doing that, I need to replace the ceramic tower antenna that broke off of this ep2 rx with a 28mm to 30mm wire. Done. Okay, now I need to flash that rx with elrs v3.3, sbus. I had some trouble figuring out how to flash this with the unofficial elrs v3.3 master (thank you, Snow, for telling me how to do it.) Checked this rx on a boad that can connect to betaflight- we've got proper sbus. Awesome! It’s a little buggy though. Nah, F this. We're gonna figure out how to do this right. Alright, I managed to open the config file in Keil. Turns out that the most recent version of Silverware supports CRSF protocol. Cool! But.. I can't build it. I'm missing Arm Compiler version 5... Okay, figured out how to download a legacy version of arm compiler v5 from arm's website. It was a bit of a pia, took some giving up of my information to get it to download, and then I had to install and reinstall things and then do it all over again because the arm compiler v5 needs to be installed in the arm subdirectory of the keil installation folder. Urgh. I'm too drunk for this shit. I hate software. Then, in Keil, I had to go to Project - Manage - Project Items - Folders/Extensions: and point it to the v5 compiler. Had to fix a few errors. Okay, I've got what I think is a compiled .hex file of my custom settings. Should be set up for crsf protocol now. Maybe. Gonna use stm32 cube to flash that hex file, then I'm gonna flash my ep2 rx with my regular non inverted, non 3.3 experimental, usual elrs build. Oh, snap! When I hit arm (and I have aux6 [sd] in a low position) with a motor plugged in, it spins!!! Maybe I can actually build this thing now. This little bird has turned out to be a hell of a headache, I'm glad I didn't try this 2 years ago when I first started out. These motors with their rainbow colors are perdy. Alright, so, this is actually my first proper 65mm brushed build. I've had a variety of brushed quads in the past that I didn't build. I had to take my heat gun on low to heat up this frame enough to get the motors to fully seat. Is that normal? If it is, how the hell do you get the damn things out without breaking the frame when you need to replace them? Does this inductrix frame just have tighter tolerances than others? I've been at this little 65mm build for about a week now. I thought it would be a simple thing, but with having to learn the software and whatnot, it's taking me as long a larger build. I'm cool with that. I might finally get this little bird in the air Wednesday night. Maybe. | | | FrSky Twin X Lite | Posted by: Fleser - 11-Apr-2023, 06:21 AM - Forum: Beginner Questions - Replies (3) | | Hello everyone. I want try FPV and want to choose good transmitter. I don't like big radios and looking for compact one. I prefere gamepad stylish. I found new model from FrSky. It's not to big and not to small and I like it's ergonomic. But I'm not sure about protocols because I'm new on this. So my question is this radio good for FPV drones? | | | Battery weight GNB 4S HV - ? | Posted by: StSV - 11-Apr-2023, 03:58 AM - Forum: LiPo Battery and Charger - Replies (7) | | Greetings to all. I am building a 3.5" fpv-quadcopter and I don't want to exceed 250 grams. I will need to order Gaoneng GNB 4S HV xt30 batteries, but their weight is usually not accurate enough. I ask you to write the actual weight of your batteries 450mah, 530mah, 550mah, 650mah, 660mah. I have larger batteries, I know their weight: GNB 4S HV 720mah 100C/200C xt30: 66.1g; 66.4g; GNB 4S HV 850mah 60C/120C xt30: 68.1g; 68.5g; GNB 4S HV 1100mah 60C/120C xt30: 86.6g; 86.64g; | | | Sometimes it’s just better to do it yourself. | Posted by: Lemonyleprosy - 11-Apr-2023, 02:08 AM - Forum: General Topics - Replies (6) | | I often find myself thinking that something store bought will work better or be more durable than a diy option. Sometimes that’s true. Sometimes it’s not. Case in point- this is a store bought simple xt60 to xt30 adapter that I use on things like my goggles or on a quad if the battery connector isn’t the right size. Now, I’ve got some jacked up sinuses- 3 sinus surgeries, nasal polyps, a constant sinus infection- there isn’t much I can smell, but thankfully I can smell burning electronics and the result of arcing electricity. Plugged in my goggles, smelt something weird- narrowed the smell down to the connector. Wiggled the connector and realized that the positive side was loose. I probably spent about $2 on this connector. If I had soldered it myself with less than $1 worth of connectors, I can pretty much guarantee that it wouldn’t have had a cold solder joint that ended up turning into a completely loose solder joint. I’m not sure what my point is in all of this. I guess it’s that I shouldn’t automatically assume that something bought is going to be of higher quality than something I built, and I shouldn’t expect that someone who is throwing things together for a job is going to take more care than I am doing something out of love for the hobby. Regardless, I’m glad it started smelling funny now rather than losing connection mid-flight. If we’re talking automation/machine made, yeah, that’s gonna be a lot more exact than I can ever do, and that’s a whole different story. Meh. | | | Random edit | Posted by: sevro - 10-Apr-2023, 08:30 PM - Forum: Videos - Replies (8) | | Picked up a mini PC to replace my old computer for my workbench which was a very old system. Really not needing a power house and have been impressed by the one I got for my Mom for her LR TV last year. It's a Beelink Mini PC, AMD Ryzen 7 5800H 16GB DDR4 RAM/500GB M.2 SSD. Plays Liftoff with lower settings ok, Uncrashed played at decent settings. DRL I had to turn everything off and run at 720p or it was whining about running sub 30fps. Turning everything to lowest/low it runs really good, running YT videos in background had no effect so probably lacking in GPU. Pretty sure it's thermally throttled too since there is only so much room for the fan. Also tried running one of my flight videos from when my AOS5-o3 was running great before it got beat up in some crashes. Not that I did anything besides trim the end and slap a song on it but the render in Davinci Resolve was pretty quick. Didn't really get the PC for any of that but it's nice to see that a mini PC that was only $320 is somewhat capable. Anyway here's a video: | | | Do you always use thread locker? | Posted by: handlex84 - 10-Apr-2023, 08:14 PM - Forum: General Topics - Replies (8) | | I have the Mercury Adhesives 'blue' medium-strength threadlocker. I was just wondering do you guys put this on every screw and on every build? How often do you use it? When do you know when to use it? | | | |