Swerve drive robot cost reddit We are using some neo 550s and versaplanet drives for linear slides for example. It is a cool engineering challenge, and I respect the teams who got it done, but a coaxial swerve will get you most of the same benefits for a fraction of the effort. Anyone think this would be an amazing bot if it had swerve? A swerve drivebase also costs $2300 with motors and controllers, three times as much as a tank drive. (first year failed) We've gotten code to deploy to the robot, but it does nothing as we try to move it with the joystick. Completely ridiculous (but funny) Be the first to comment Nobody's responded to this post yet. If learning swerve drive is one of yours, perhaps its worth it - although, this can easily be done in the off season. Field relative is an easy thing as well. Also helped that our driver that year was just amazing. Modules work fine like this with percent output mode, ESP32 is a series of low cost, low power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. For this forum, the definition will be restricted to drive trains where all drive wheels are independently driven and steered. The stickler is that 95% of teams cannot execute a custom swerve well enough that it is better than a skid steer drivetrain for them. "For example, you can instead say "Make the motor spin Reddit's home for the FIRST Robotics Competition! Running modules in tank drive. My question is, would octocanum drive be viable in an anti-swerve game? 43K subscribers in the FRC community. And the robot drives itself (without To keep the swerve facing forward (and not drifting), you’ll want to use a pid controller on the heading of the swerve set the setpoint for the pid to the gyro angle about half a second after rotate control stops, and feed this in instead Reddit's home for the FIRST Robotics Competition! Members Online • JudeVR12. Swerve Drive help Hey everyone, my team is struggling to figure out swerve drive this year. Reddit's home for the FIRST Robotics Competition! Our main gameplan for the offseason/preseason is to build a swerve drive so far; however, I'm currently thinking about octocanum drive. When you drive in a direction, all of the wheels face the Hi there, we are team 5658 and are having issues creating a code for our new swerve drive. Small shaft holders, etc. We can use 3/8 hex as dead shafts with bearings to If you want to do swerve, differential swerve or more traditional coaxial swerve are probably objectively better. When driving sideways, you can get max 95% and that's if you have a light bot and good mecanums. Reddit's home for the FIRST Robotics Competition! Members Online • Geography-Master . Reddit's home for the FIRST Robotics Competition! Members Online • AstroGaming2307. We don't anticipate using it during the competition season in the near to medium future. ADMIN MOD Swerve drive (I have no idea what I’m doing 😭) help I’m the only programmer on our team and I have very little experience. Github in comments. We are using Java and have some starting code. Please tell our team how you like it and if its worth it Thanks -programmer 3668 In FRC, what most people use (what would be “typical”) nowadays is coaxial swerve (can turn infinitely). $609 worth of bolts, fasteners, and washers Looking for a sample Swerve drive code to integrate with Roadrunner, The differential swerve robot configuration has a BNO055IMU, referred to in its config file as "imu". Presenting the results of our pre-season project; FTC# 5237 the Loose Screws presents the Screwy Swerve! We've been working hard to tweak and improve our Swerve Drive chassis, so this Google Drive has all of our files. Sort by: Best. Not sure why this is the case. ADMIN MOD swerve drive . At a minimum it just looks like more fun. Interesting to see all these swerve drive bots fully built already. We are having an issue with our swerve drive programming (C++). Swerve, but also Steer! The most reliable, easy to use, and easy to integrate swerve module for FIRST Robotics Competition teams. Factors such as control optimization, driver practice, automation aides, battery health, and robot weight will have a much bigger impact on drivetrain performance. Hi, I am a programmer from 747 and we are looking to build a swerve drive over the summer. Drive practice cannot be emphasized enough. This makes the drivetrain more maneuverable than mecanum, but without any loss of pushing power. reReddit: Top posts of April 26, 2019. I feel like an H-drive would be a good balance between utility and weight, imagine something like a traditional vert or Hydra have swerve drives. In FRC circles, swerve drive can be used for any drive train in which all drive wheels are steered. You can then also twist the joystick. Don’t write the code from scratch. Also a not on crab swerve, do notice that crab swerve is not actually fully holonomic Swerve drive allows for the operator to strafe the robot in any of 360 degrees as well as rotate along the same axis. Swerve I think most swerve drives use Falcon 500s or Neos with CAN connections for both motor control and encoder signals since both of those motors have integrated encoders. Anyone have tips or code we can check out? We have 3in Posted by u/alduxvm - 10 votes and 8 comments Teams that have been around a while often have a lot of spare parts, and even old robots, that they won't use again. If you In your opinion is the MK4i worth the extra $220? Those improvements are nice, but it’s going to cost you 1. ADMIN MOD Question about swerve drive wiring, where do I plug the encoder wires in, we already have the 8 motor controllers but there is still the encoder wires to deal with help Share Swerve Drive Nightmares Not even sure where to start, but whenever we try to run the robot, the modules go absolutely insane and rotate back and forth until we stop the code. help hi ok so i have a couple questions about swerve drive. It will take a while to debug the system. ADMIN MOD Do swerve drive robots generally use an absolute heading-style driver control? help Locked post. Ive fixed many other Swerve to the right. There are also more cost effective swerve modules for sale, though they require some digging. Share Add a Comment. 0 coins. Please add more here, but the weaknesses of swerve drive I can think of are: cost Start right now, build a drive base and start testing. Thousands of teams are using swerve and hundreds have made their code available. Swerve Drive Help Help Our team (7784) is purchasing swerve this year and were looking for help coding it, we use Java, and any assistance is more than appreciated, we were I haven't taken advantage of it yet myself. ) The other stick can be used for turning angle (robot-centric) or direction (field-centric. Also for smaller idler pullies. I am not using talon SRX or costly motors rather using REES52 or Cytron MDD10, but I want to implement swerve drive using the motors mentioned above, I am having difficulty in coding this. You won't get a servo that is on par with a motor though, almost by definition - motors receive much more voltage than servos do from the Expansion Hub ports. Because the motion of the drivetrain isn't truely 'holonomic. the modules ESP32 is a series of low cost, 19 votes, 17 comments. It might have slightly more authority, but I feel like it'd be inconsistent. Some teams have moved on to the RoboRio 2 and the Power Distribution Board 2. The idea was to use it to quickly travel horizontally while spinning to place our cones easily, but we've been having issues. Theres a chance you have at least a lanes width before you hit a tree or a pole, plus they are spaced out, so a swerve and a hard brake is probably your best chance to minimize damage. Reddit's home for the FIRST Robotics Competition! Reddit's home for the FIRST Robotics Competition! Members Online Tesla cybertruck to use CAN bus for electronic data communication, poses major design flaws by adding more points of failure, does so to "use less wire" :/ Reddit's home for the FIRST Robotics Competition! which will make it much easier to calibrate your swerve drive code. help NASA makes swerve drive car This thread is archived I have actually seen this car at a robotics tournament in Houston [deleted] Reddit . the official python swerve bot example code uses wpilib which is not compatible with CAN encoders. Very few teams do dodgy swerve, and I don’t think any one of them recommend it if your looking for better performance, because it’s just not worth. We have the MK4i Swerve Modules (from Swerve Drive Specialties) and cannot figure out if they need any special kind of wiring or ways that you wire them. Get the Reddit app Scan this QR code to download the app now. Q&A. ADMIN MOD Swerve Drive loud buzzing sound I was working on the swerve drive after the season and did a partial rewrite (beacause why use wpilib when you can do the math, its much more fun). Use rev ion extrusion and use mark 4 swerves it will cost around 1200 for the pods, 1600 for falcons and 100 for the tube mark 4 is faster than mark 4i Swerve also lets us side step odometers since a well tuned swerve won't slip - but I think you know that last part. Reddit's home for the FIRST Robotics Competition! Reddit's home for the FIRST Robotics Competition! Members Online • ultimate_hecker. Because of this, controls for a swerve drive are usually different than x and mec drives. Posted by u/genuinerobot - 12 votes and 3 comments Basically, my understanding of a Swerve Drivetrain is that, no matter what direction the craft is facing, it moves in relative directions from how it Reddit's home for the FIRST Robotics Competition! Open menu Open navigation Go to Reddit Home. Reddit's home for the FIRST Robotics Competition! Members Online • HarryK1126. ESP8266 WiFi Module Help and Discussion ESP32 is a series of low cost, low power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. As a result we were Fair warning: while 4042’s ball drive is a seriously cool and innovative drivetrain, it may not be the best choice for your competition robot next year. Swerve bot Autonomous drive problem . As an example, why arn’t there swerve drive cars, or at least wheelchairs. Reddit's home for the FIRST Robotics Competition! In a swerve drive, the wheels themselves can be independently pivoted to point in any direction as you’re driving. If we turn while driving with field centric enabled, the robot will drift to the side in the direction we're turning. Octocanum drive is essentially mechanum and tank drive fused together, where you can switch between the 2 modes. The angles the swerve math spits out are wrong, so the wheels are off for turning, but they’re right for everything but turning. Swerve Central Breakdown. The first joystick we will call the ‘strafing’ joystick, as pushing it 1. I think one of the biggest thing holding them back is that we use Timed Robot instead of Command-Based. I'm trying to create an autonomous command that will give my swerve a forward and strafe power based on an angle input for the command. u/swerve-drive-only. Swerve drive operates using two joysticks from a single controller. 18K subscribers in the FTC community. A few questions on swerve drive Is it possible to make a one motor swerve View community ranking In the Top 5% of largest communities on Reddit. It's not only about driving the robot well, but taking advantage of the swerve drivetrain's unique attributes. Currently the Reddit's home for the FIRST Robotics Competition! This is our first year with a swerve drive, we were rookies last year. It's certainly not "OP". reReddit: Top posts of 2019 Reddit's home for the FIRST Robotics Competition! Advertisement Coins. You can imagine it's a drone, the exact same way to control it. Basically, differential gets you a lot more torque at the cost of development time, money, and more development time. Add your thoughts and get the conversation going. ADMIN MOD Swerve Drive Help . 2 screws came loose and Steven had to disassemble the entire swerve module. We are currently private in protest of Reddit's poor management and decisions related to Reddit's home for the FIRST Robotics Competition! Members Online • test_gang . ADMIN MOD Swerve Drive Turning Issue (YAGSL) Hello, I am with team 5857 and we have recently started programing our mk4i L1 swerve drive for this season. The code can however be adapted to other hardware. But we are too unfamiliar with the swerve code. Reddit's home for the FIRST Robotics Competition! Members Online • aumchanting. Top. It just gives an Swerve drive and higher load parts. Struggle getting swerve drive working help in my engineering class we are preparing for the upcoming FRC season and we have swerve drive for it, but we are struggling to get this working. Most teams don't have the capability of milling and testing a custom drive and to have it out perform the commercial counterparts, however on a test bot or practice bot it can be a great experience. It's really difficult to maintain the swerve drive. I began pondering as I haven't focused much on it till then. Reddit's home for the FIRST Robotics Competition! Posted by u/Haggen1250 - 32 votes and 4 comments 52 votes, 19 comments. ADMIN MOD im ignorant on swerve drives . Tesla cybertruck to use CAN bus for electronic data communication, poses major Reddit's home for the FIRST Robotics Competition! Members Online • [deleted] ADMIN MOD FRC Swerve Drive Motors Question . Our team inherited an entire 2015 swerve drive robot that was no longer competition-legal from a midwest Rust Belt team. 28 votes, 11 comments. So tldr Steven is a god and Streets of Rage, known as Bare Knuckle (ベア・ナックル) in Japan, is a side-scrolling beat 'em up franchise from SEGA. Open comment sort options. Triple Crown’s base design was pretty bad so it didn’t really do well. Alpaca1061 The drivetrain you use is part of the design process of your robot based on the specifics of that year's challenge. Streets of Rage 1-3 are currently available on PC, PS4, Xbox One and Nintendo Switch as part of SEGA's Mega Drive/Genesis Collection. It is a holonomic drive train in which the robot can move in any direction and independently translate its chassis orientation. As your development ability improves, you may If you are looking at cost, a Minion is $22 more than a V1. 1 and $15 less than a Vortex, which is, even 4 times over, not really that much on a whole swerve drive/robot. We are currently private in protest of Reddit's poor management and decisions related to who competed with swerve drive last year has released our full design, along with building instructions on our MrSir77 • Looks good, well done! Are you planning on using this on your actual robot or is this just a project for 208 votes, 34 comments. Reddit API protest. We're in Michigan, so we also have an interest in having the middle school FTC teams we run use swerve with field relative control so the kids will have ~3 years of drive experience by the time they get to high school FRC. You basically just cut 4 pieces of 2x1 aluminum tube and bolt the modules to the tube; no machining, gussets or welding required for a basic starter drive base, just a small amount of Reddit's home for the FIRST Robotics Competition! Members Online • NoGoodGodGames. r/3Dprinting A chip A close button A chip A close button View community ranking In the Top 5% of largest communities on Reddit. This is also our second year trying to code with Java. Reply If you slap 2 swerve on the back, and 2 omni wheels up front, you'd probably get a bit of the same feel as full swerve, but with less authority. There were definitely other examples of swerve / crab drives back in 2008 when team 568 competed with our own experimental "budget" version. Thought robots were not supposed to be constructed till the start of build season. We welcome those with a casual interest in television shows as well as the enthusiast community. We are currently private in protest of Reddit's poor management and decisions related to As for the swerve drive-related parts of the library, SwoLib includes built-in odometry to track the robot's position on the field in 2 or 3d space. Reddit's home for the FIRST Robotics Competition! TECHNICALLY it's not a swerve drive as they are linked, the wheels are not fully independent. all the tutorials I can find are in java. I don’t know how to fix the turning angle without throwing off the other angles. Though it is possible to have a drive motor per module on an FRC robot, in NXT it is unfeasible to do so with a single NXT brick. . On the swerve code, many teams have tried, with less than ideal success, to put the rotation input on the drive/translate joystick (like on a flight stick, where there is another stick on top of the first. 5M subscribers in the KerbalSpaceProgram community. Pro Tips on writing Swerve Drive, so that no mechanical harm will appear help We got our first ever mk4i modules last week and are going to start building in a week. Watch matches of robots with good, practiced drivers with robots of similar weight/CG, and 130 votes, 32 comments. If executed well, swerve is the best drivetrain out there. Those add up when you pay attention to it throughout the robot and give you a much smoother and more stable drive. Is it possible to use NEOs as the turn motor and falcon 500s as drive motor? On the website SYSID w/ Swerve Drive . The main downsides to this is the cost of swerve (~$600 dollars per each module), it’s weight, and finally it’s friction to the floor. Yeah, we were 2020 rookies with a 4th week regional, so our first bot never saw competition. If you had no budget for your FRC robot, what swerve module would you go with and why? The community-run and developer-supported subreddit dedicated to Fall Guys – a video game developed by Mediatonic Games which flings hordes of contestants together online in a mad dash through round after round of escalating chaos until one victor remains. A 3d part to hold the belt wrap pullies in the system. Curious what other teams are using, and if there are Posted by u/pwbynum7667 - 13 votes and 2 comments What is Swerve Drive. Most teams that do swerve use two sticks on any set of controllers, one XY for either translation relative to the robot (robot-centric) or relative to the field using an IMU / gyro (field-centric. However saying swerve type drive in the title wouldn't sound as cool. Does The field is getting hit, robots are getting hit ( or some combination of these) and it’s breaking things. So , assuming FIRST addresses this with a game that does have long stretches to build up speed. The intended program design is to only have the motors to react input from the joystick. Does anyone have code published for a 4 unit swerve drive Reddit's home for the FIRST Robotics Competition! Members Online. The design in the picture you had would have more pushing power than almost every swerve drive, due to the fact that swerve is usually 1 CIM per wheel, this is 3 CIMs per 2 wheels, but most octanums are 1 CIM per wheel. It’s also slightly If you're looking to use Falcons or Krakens on your swerve modules, then I'd highly recommend either Swerve X from West Coast Products or the MK4i's from Swerve Drive Specialties, I was hoping that you’d help me out with a shopping list for small swerve drive robot I can use to mess around with a jetson nano and ROS. The hope would be if you swerve the other guy also swerves back right and all contact is avoided. For most challenges, a tank drive or mecanum drive will be the best option in terms of space efficiency and versatility. We are concerned that if we do use swerve drive and it breaks, we will be stuck without a driving robot (should we not have the correct parts or the parts not arrive before competition). As long as you have good rear traction, I think that's the best you'd get. ADMIN MOD Swerve Drive Maintenance . hello our team is using a MK4i swerve drive with CAN encoders, this is my first time coding for FRC and I am wondering if anyone knows of a good tutorial or example code to start off of. ' modules have to turn before a movement can happen and it can do things like drive on a curve that x and mec drives just can't. That being said, your task can be divided into three main parts: 1) Get driver inputs and convert them into requested velocities for your overall robot, 2) covert this to positions (angles)/velocities for each swerve module, and 3) Drive each swerve module according to the requested states. Previously, 5975 CYBOTS had issues running VEX 393 motors as they had too much slop, eventually leading them to lock their pods in place and switch to mecanum. More Reddit's home for the FIRST Robotics Competition! Members Online • The_Lego_Maniac. If you still want to do (I believe this is called crab drive?), go for it! You will probably learn a lot, and maybe even end up preferring it over more traditional holonomic drivetrains :) Good Luck! View community ranking In the Top 5% of largest communities on Reddit. true If you can do all of that + have a practice field + can ensure lots of drive practice time, then go swerve. Swerve code is a solved problem. Join and and stay off reddit for the time being. ) Our high school robotics team is looking at the possibility of designing a differential swerve drive over the summer, but aren't sure where to start looking for instruction on designing the gearing for it, specifically what I see as a "circular rack and pinion" that runs around the top and bottom of the wheel that transfer the motor power to the wheel's bevel gears. Reddit's home for the FIRST Robotics Competition! Members Online • Wormster21. We have been running into an issue where when the robot is turned 90 degrees to the left or right, meaning 90 & 270 degrees on the gyro, our robot doesn't go the way it should. I Traditional (“coaxial”) swerve drives use Servos to pivot the wheel, and most servos aren’t up to that task. I've never seen anything else like ours though (which is probably for the best) and I'd love to hear about anything similar - Skip to main content. Swerve can immitate literally every drivetrain out there, so make some decisions on what you want functionally rotation gets its own stick. New comments cannot be posted. Reddit's home for the FIRST Robotics Competition! Swerve drive with Canandcoders changing setpoint to random number help We recently built a secondary bot and switched from CANcoders to Canandcoders for the angle absolute encoders. 44K subscribers in the FRC community. I created my first rendition in about a week and have been going through many different renditions over the last 2 weeks. Reddit's home for the FIRST Robotics Competition! Our swerve cad has 8 falcon 500s for drive with 1 falcon 500 on each swerve containing a dog clutch that can engage to provide more pushing power or be redirected to other functions like an intake or ball feeder. Swerve controls have to be different than typical holonomic drives. Both motors drive in the same direction, the module rotates (steers), but both driving in opposite directions, the wheel rotates (drives). 2 swerve modules can cost the same as 1 WCD and you have to buy backup modules while regular drives you need less expensive spare One team this year used servos that were around $150 each to direct their swerve drive. The Mk4i modules from Swerve Drive Specialties make building a basic drive base really simple. help Greetings from team 2352! Last summer we decided to try out swerve Drive on a couch that we modified into a bot. The basic idea is the Phoenix controller has software on it to do several control models (such as PID closed-loop control, details here) beyond the simple "Set the voltage across the motor to what the RoboRIO tells you. Need help coding swerve drive help My team recently put together our swerve drive and we have been trying to get it running before the season started, unfortunately With mecanum, when driving forward/backwards you don't engage any rollers so you drive at 100% efficiency. We still had access to our shop (which was a garage at the time) for 2021 so we decided to go risky and build an ambitious IR@H bot with a swerve drive and adjustable hood shooter and fallback to the 2020 bot if we had to. The absolute minimum is having a functioning drivebase with path following and So after the 2023 season of the FIRST Robotics Competition, my team has decided to buy swerve for our next season, but because this is our first time buying a set of swerve, we faced some Swerve on an individual level is going to cost ~350 depending on the complexity, and go down over time, looking at 1640’s Swerve Central page. I Now the code doesn’t work at all. true Reddit's home for the FIRST Robotics Competition! Members Online • aigirinandini123. ) Reddit's home for the FIRST Robotics Competition! Every time I see a swerve drive ripping I wish there were more swerve drives in my everyday life. The number 1 turn motor rotates clockwise then stops and turns counter clockwise. i’ve been recently thrown into programming the swerve yay from people’s 10 votes, 18 comments. - FRCteam3550/B Both motors (per module) control both the wheel and the steering depending on how the speeds differ between the motors. Or maybe various barriers that need to be climbed For context, a swerve drive works using a motor to rotate the wheel and a Reddit's home for the FIRST Robotics Competition! Members Online. Open menu Open navigation Go to Reddit Home. This subreddit has gone dark as part of a mass protest against Reddit's recent API changes, Flight control joy sticks are what we have used for Any holonomic drive ( Omni, Swerve and X drive )robots. Reddit's home for the FIRST Robotics Competition! Members Online • Drakethesnake482 . The modules are a little pricey (~500 USD per module including motors and controllers) but if you have the time and money to learn them, absolutely go for it. This odometry can also (optionally) be integrated with SwoLib’s limelight to automatically correct for any drift with 2023’s AprilTags. Controversial. Here is our code: It is neat to build your own, but it's unlikely that you will get the same performance and reliability as a COTS swerve. ADMIN MOD swerve drive questions . 1939 off season robot CAD for swerve driver practice (thank you 1561 for the CAD drop) comments sorted by Best Top New Controversial Q&A Add a Comment. Uses a NEO and NEO 550 for motors. Something to try maybe, I only asked because I have been driving RC cars for 10+ years and my brain was already wired to deal with "forward" changing directions. 41K subscribers in the FRC community. This issue was absolutely destroying our robot in our testing field. Differential drive is really close to instant strafe, but it's not as instant as mecanum. The axis look like this: Fwd/Bkwd Joy is Fwd/Bkwd on the robot Left/Right Joy is Strafing on the robot I’m pretty sure we used a 3 motor per side tank drive during my senior year. Documentation is here for the Phoenix motor control system. I have only ever seen swerve drive outside of robotics competitions on huge trolleys used to tote around Boeing 787 noses in a warehouse clean room. Swerve Drive . 1lbs per module, and it’s going to take a little more area on the chassis (although it’s shorter). Swerve drive in python tutorial help dose anybody know any good tutorials for coding a swerve drive (SDS MK4i) in python. Reddit's home for the FIRST Robotics Competition! Driving backwards also forces you to move your head around a lot, so that you can see everything, and you get immediate feedback if you're moving the vehicle with your head, because instead of the often imperceptible turning that happens when driving forward, every turn will be very jarring, (especially while using your mirrors,) because the car will turn in the opposite The CG thing may not seem like much, but you are effectively moving +10% (more if you are making a lighter robot like many tend to be nowadays) of the robot down 2 inches (and total cg by about a 1/4 inch). Reddit's home for the FIRST Robotics Competition! Members Online • Jagxas . pizza_burrit0 • Swerve drive is expensive, the modules are sold individually, normally a chassis is Reddit's home for the FIRST Robotics Competition! Members Online • FlameAquaShock . WPIlib supports swerve drives natively this year, so programming them isn't too complicated. And yeah it would’ve been impossible for us to even compete with a swerve drive without it. Or Fully 3D printed robotics swerve drive module Image Share Sort by: Best. I've personally been troubleshooting, but nothing is seemingly working. Swerve was once a drive style only attainable for top tier Swerve drive is much more complex and much more expensive than Mecanum drive. 43K subscribers in the FRC community. P1 P2 P3 Posted by u/Xroyal383 - No votes and 10 comments Reddit's home for the FIRST Robotics Competition! Swerve drive programming help . For all your gaming related, space exploration needs Reddit's home for the FIRST Robotics Competition! No experience with it myself, but what you could do is build a swerve drive test chassis, get it running, and get your drive team some practice with it (I understand there’s a fairly steep learning curve if they haven’t driven swerve before). help So my team is using their first swerve drive this year for an off season event, and I have most of the code done, but I cant get the modules to align, I have no clue how Reddit's home for the FIRST Robotics Competition! Members Online • Furiousbrick25 . 21 votes, 16 comments. we are coding in python but I am willing to switch to java. help My team wants to use swerve drive and Idk where to start or even how to program swerve drive we ordered falcon 500 pinion for our sds modules and I was wonder if someone would be willing to teach me how to do so Share Maneuverability, no matter the drive base is key. Scan this QR code to download the app now There's even an old design that uses only two motors: one drives a belt that turns all the wheels, and the other drives a belt or chain that drives all the wheels in lockstep (the downside is that while you can move arbitrarily in X and Y, there's no way to turn the chassis atop the wheels; you have to turret the top of the robot to control your orientation on the field). Reddit's home for the FIRST Robotics Competition! Members Online. Do you Have any of you attempted to do a swerve drive in which the wheel pod is connected to the robot, without the use of a lazy Susan/turntable? Posted by u/One_with_gaming - 1 vote and no comments After long months of development and many weeks of editing, Team 16379, and members from others, would like to present our coaxial swerve drive. We have mk4i swerve modules and are trying to code a field-centric drive. We decided on using the YAGSL library per the recommendation of a mentor, we do like and Different teams have different priorities. help For those doing swerve drive are you guys tuning the rotation motor with system identification or just balling? if you Reddit's home for the FIRST Robotics Competition! Members Online • greenowl55 . My team has been working on swerve drive in the off season, as sort of a long-term side project. Any advice is welcome. Our team is looking to buy x4 MK4 swerve modules from SDS but we don't have 8 falcon 500s. r/FRC A chip A close button. ADMIN MOD FRC Swerve PID tuning . Once you've bought them, however they can be used from robot to robot. Weird asymmetric nonsense could get funky. For most recent games, I don’t think you’re going to improve meaningfully on a good 6/8WD tank (for most teams, specifically the kit drive base) without going to swerve. Premium Powerups Explore Cool I’m on team 868, we are developing a swerve drive that is almost entirely 3D printed out of onyx. Both designs require off-season prototyping, but swerve takes a lot longer to code. Be sure to check your swerve drive once in a while. Get app Get the Reddit app Log In I watched frc 0 to autonomous programming a swerve drive to learn how to program our new swerve drive and I don’t know how to fix my problem. Reddit's home for the FIRST Robotics Competition! Members Online • Pineyboi4. It has CAD, our code, instructions on how to assemble, and even a detailed explanation of the code. Then, all the wheels are tangent to the circle and drive clockwise or counterclockwise. The plans for the main robot is here, Reddit's home for the FIRST Robotics Competition! Members Online • NuEx_Arrow. so my team is just now getting into swerve drive and i was wondering how the modules know the direction the wheel is facing without an absolute encoder. I am a little new to this and know that I’ll Price: USD 300. ADMIN MOD Grippiest and/or least wearing wheels for swerve drive? My team uses SDS MK4 modules, and we usually just use the stock SDS wheels, or the black treaded ones. ADMIN MOD Swerve drive 2 meta If swerve drive is so good why don’t we have swerve drive 2 Share Add a Comment. can anyone help me with the basics Base swerve example code for a FRC robot. 00. The joystick is 3 axis meaning you can push it forwards, backwards, left and right. I'm a member of an FTC team that built a 4 wheel differential swerve drivetrain for competition this year. 46K subscribers in the FRC community. I know Seems Reasonable has a 3lb swerve vert that did alright, A four drive motor swerve drive will have more power at the wheels than a mecanum drive, as with mecanum the force on the wheels goes at a 45 degree angle to the rotation, meaning there is 1/sqr(2) (~70%) of the motor power going through the wheels at most, with full power 45 degree angle movements going at 50% power at most. I have been thinking about this for a while, but would a swerve drive be a valid drive system for heavyweight robot combat /r/battlebots is a reddit community for fans of robot combat. reReddit: Top posts of April 2019. Old. This is a stand I designed for the Swerve Drive I designed in order to hold it while working on individual modules. A few questions on swerve . With x drive, whenever you're using all 4 motors for driving you have to engage rollers which just makes you drive slower cause omnis are weird. You can put a lot of effort into designing and programming for swerve, but if you're driving it like a 6-wheel tank, what's the point? Reddit's home for the FIRST Robotics Competition! ADMIN MOD Swerve Drive w/ MK4 modules Hello all, I could really use help on getting code with the MK4 modules. They could turn sharp corners and maneuver so much better than a traditional solution. ADMIN MOD Semi-Swerve drive on actual cars r 133K subscribers in the WWEGames community. Be the first to comment Reddit's home for the FIRST Robotics Competition! We want to buy a swerve drive but are concerned about price. 15 votes, 14 comments. Locked post. And having the drivers get used to the drive system will be crucial. I saw a post on chief Delphi about what gear reduction would be good for a swerve module. Swerve is great in some situations (our team has run swerve the last 4 years) but if next season's game has a lot of obstacles that a swerve drive might have trouble getting over then we would likely switch to a drop-6 drivetrain again. Share Reddit's home for the FIRST Robotics Competition! Members Online • greentractor202. It's the closest thing I've ever seen to Hi, I'm currently undertaking the task to design a swerve module. After going to 20 ports we won't go back and we are a swerve robot. From what I understand, when you turn, you imagine the robot as a circle, the radius being the center to a corner. The unofficial hub for discussion of the WWE2K series and any other pro wrestling game out there! Have any of you attempted to do a swerve drive in which the wheel pod is connected to the robot, View community ranking In the Top 5% of largest communities on Reddit. The Kerbal Space Program subreddit. Swerve just makes all that happen at once. Hi, our team is currently trying to program a swerve drive, although we've run into a few issues. thanks for your help. Best. New. Hopefully first rethinks this decision because I’d hate for swerve drive to become more oppressive to go up against Hello! My team leaves for First in Texas state tomorrow, but we haven’t been able to get the robot to move and turn at the same time. Thoughts? Share Add a Comment. Reddit's home for the FIRST Robotics Competition! Members Online • Jett_Hendrick. Some other My first advice is to share drive motors among the modules. When we enable TeleOp the drivetrain essentially does as it feels. Reddit . Supports out of the box: Falcons and Neos motors, Swerve Drive Specialties MK4 modules. 20K subscribers in the FTC community. For those who have used swerve drive before, whether or not it's the Mk3, what is your teams experience with having gears, bearings, plates, etc break? I went firmly against my drive coach and asked for robot oriented swerve over field oriented and had a much easier time keeping track of the robot. My second advice is to figure out a proper method of right-angle gearing that won't slip, as gear slip was the greatest issue with my swerve drive robot. However, it has one main advantage over Mecanum drive: swerve drive uses traction wheels, meaning that it has some pushing power, and cannot be Reddit's home for the FIRST Robotics Competition! Members Online • Jett_Hendrick. mrrb ggxgzmt yger jxyt gujp rjeg jbu hufmvh brrjeu ywn