471B's VEX Design Tricks: Every Choice & Why It Works
471B 的 VEX 设计秘籍：每一个选择及其原理
Team 471B "Easy Robotics" built three Push-Back 2026 robots and documented every trick. From structural screw joints to wiggly bearings, TPU flaps to triple-state pneumatics, rage bait goal blockers to zip-tie autonomous alignment — here is every design decision, with the rationale behind it, organized by robot subsystem.
471B "Easy Robotics" 战队打造了三台 Push-Back 2026 机器人，并记录了每一个设计技巧。从结构性螺栓连接到摇摆轴承，从 TPU 挡板到三态气动系统，从"挑衅诱饵"阻挡器到扎带自动对齐——这里是每一个设计决策及其背后的原理，按机器人子系统整理。
Drive Base & Chassis Tricks
底盘与车架技巧
34-Hole Long Chassis for Ball Capacity
34孔长底盘换取储球量
The 24-inch robot uses a 34-hole-long drive base — well beyond the standard — specifically to hold as many balls as possible in a "Ray One" style conveyor. This gave them an 8-ball capacity at Worlds. The tradeoff: harder to drive through alleyways. Solution: wall riders and driver practice. "It was kind of bad for driving through alleyways, but driver diff, you know, it was fine."
24英寸机器人使用34孔长的底盘——远超标准——只为在 Ray One 风格的输送带中存放尽可能多的球。这让其在世锦赛上拥有8球容量。代价：在狭窄通道中更难操控。解决方案：墙边滚轮和驾驶练习。
Structural Screw Joints on Every Wheel & Idler
每个轮子和惰轮的"结构性螺栓连接"
Instead of standard shaft/bearing mounting, every wheel and idler gear uses a screw going through with a cap nut on one side and an aluminum nylock on the other — tightening everything into a rigid sandwich. Shoulder screws center the wheels. "It's all really strong and secure." This distributes load across the full screw rather than depending on shaft friction alone.
替代标准的轴/轴承安装，每个轮子和惰轮使用一根贯穿的螺栓——一侧是帽式螺母，另一侧是铝制尼龙锁紧螺母——将所有部件紧固成刚性三明治结构。台阶螺栓保持轮子居中。"一切都非常坚固且安全。"将载荷分布到整个螺栓上，而非仅依赖轴的摩擦。
Sanded-Down Cap Nuts for Wheel Clearance
打磨帽式螺母获取轮子间隙
To fit wheels in a narrow 5-hole gap, they physically sanded down cap nuts at the base of the screw joint. They tried using flathead screws for an entire side to get even more clearance for the decoring wing, but settled on sanded cap nuts as the more pragmatic solution. When millimeters matter, abrasive modification beats redesign.
为了让轮子装入5孔的狭窄间隙，他们物理打磨了螺栓连接底部的帽式螺母。曾尝试在一侧完全使用平头螺栓来为摘球臂获取更多空间，最终打磨帽式螺母成为更务实的方案。当毫米级空间至关重要时，磨削修改胜过重新设计。
Dual-Material Cross Braces (Steel + Aluminum)
双材料横梁（钢+铝）
Two cross braces span the entire drive base: one steel screw for strength, one aluminum screw to save weight. This hybrid approach gets the strength of a dual-steel brace at less weight. "One steel screw and one aluminum screw to save weight and to be really structurally sound." The steel screw handles the primary impact loads; the aluminum provides torsional rigidity.
两根横梁横跨整个底盘：一根钢螺栓保证强度，一根铝螺栓减轻重量。这种混合方法以更轻的重量获得了双钢横梁的强度。钢螺栓承担主要冲击载荷，铝螺栓提供扭转刚性。
Thin McMaster Aluminum Spacers as Wall Riders
McMaster薄铝垫片做墙边滚轮
Wall riders on every side of the bot use thin aluminum spacers from McMaster — "really thin but still really strong because it's aluminum." A shaft collar around the spacer lets it spin freely. These help with autonomous (recovering from wall contact), general driving, and tight alleyway navigation. "It just made everything better."
机器人每个侧面的墙边滚轮使用 McMaster 的薄铝垫片——"非常薄但仍然非常坚固，因为是铝制的。"垫片周围的轴环使其自由旋转。这些滚轮助力自动程序（墙接触后恢复）、常规驾驶和狭窄通道导航。
Six Omni Wheels (3 Per Side) for Weight Distribution
六个全向轮（每侧三个）分摊重量
The 24-inch robot at ~18 lbs runs six omni wheels — three per side — rather than the standard four. "If you put all of that on two wheels on each side, you can start to have problems with your omni wheels digging into the field." Extra wheel count distributes the load, prevents foam field damage, and improves traction during aggressive turns.
重约18磅的24英寸机器人使用六个全向轮——每侧三个——而非标准的四个。"如果你把全部重量放在每侧两个轮子上，全向轮就开始压入场地。"额外的轮子数量分布载荷、防止泡沫场地损坏、并在急转弯时提升抓地力。
Gears, Shafts & Motors
齿轮、轴与电机
Angled Motor Mounts on 3D Printed Brackets
倾斜电机安装在3D打印支架上
Motors are mounted at angles on custom PLA 3D printed brackets rather than flat against the chassis. This allows easy access to ports for wiring and quick motor replacement if one burns out. "I can pull this off and the motor will just come off." No disassembly of surrounding structure required.
电机以倾斜角度安装在定制 PLA 3D打印支架上，而非平贴底盘。这样可以轻松访问端口接线，并可在电机烧坏时快速更换。"我拆下这个，电机就可以直接取下来。"不需要拆卸周围结构。
PLA Gears: Large Teeth + Thick Walls + Gyroid Infill
PLA齿轮：大齿形+厚壁+Gyroid填充
Despite many teams reporting broken 3D printed gears, 471B had zero failures. Their formula: use very large tooth sizes, stick close to 1:1 ratios (in this case, exactly 1:1 for 600 RPM direct drive), use very thick wall layers, run gyroid or TPMS infill at 20-25%, and ensure the tooth region is completely solid with no infill. Only 1/8 inch thick, but geometrically optimized.
尽管很多战队报告3D打印齿轮断裂，471B 的破损率为零。他们的配方：使用非常大的齿形尺寸、保持接近1:1传动比（此处正好1:1用于600 RPM直驱）、使用非常厚的壁层、运行 Gyroid 或 TPMS 填充 20-25%、并确保齿部区域完全实心无填充。仅有1/8英寸厚，但几何优化极致。
Polycarbonate Tube Shafts — Lighter & More Flexible
聚碳酸酯管轴——更轻更柔韧
Instead of VEX high-strength steel shafts, the intake uses polycarbonate tubes. "It makes the bot lighter. There's not like a five strength shaft here." The tube is flexible — it bends on impact and springs back — and components can be directly drilled and tapped to mount onto it. "I can just do this and it just comes back right there."
替代 VEX 高强度钢轴，吸球系统使用聚碳酸酯管。"这让机器更轻。这里没有所谓五强度轴。"管道具有柔性——受到撞击会弯曲并弹回——组件可以直接在上面钻孔、攻丝并安装。
6061 Aluminum Shafts vs. High-Strength Steel
6061铝轴 vs 高强度钢轴
The 15-inch robot uses 6061 aluminum shafts for the match loader and intake arms. "This never bent or anything. It's a lot lighter than a steel high-strength shaft." The weight savings matter more on a dense 18-lb brick of a robot, and the forces involved in match loading didn't exceed aluminum's yield point. Material choice follows load analysis, not defaults.
15英寸机器人在赛球装载器和吸球臂上使用6061铝轴。"从未弯过。比钢制高强度轴轻得多。"在一台18磅砖头般密实的机器人上，重量节省更重要，而赛球装载涉及的负载并未超过铝的屈服点。材料选择跟随载荷分析，而非默认选项。
Plastic Ball Bearings on the Intake Shaft
吸球轴上的塑料滚珠轴承
The polycarbonate tube intake shaft runs on plastic-housed ball bearings. "These are extremely light and very low friction." Standard metal bearings work, but when every gram matters (especially given the brain-underneath layout), lightweight bearings are a free efficiency gain. They're mounted on 3D printed housings that keep the polycarbonate shaft in place.
聚碳酸酯管吸球轴在塑料外壳的滚珠轴承上运行。"这些非常轻且摩擦力极低。"标准金属轴承也能工作，但当每一克都至关重要时（尤其考虑到大脑在底部的布局），轻量轴承是免费效率增益。
Triple Chain Stabilization (Tower Takeover Tech)
三重链条稳定（Tower Takeover 古法）
On the 24-inch scoring chain, 471B runs three sets of chain — one center drive chain flanked by two high-strength chains on the outside. This old Tower Takeover technique prevents the chain from twisting laterally. "This chain broke like once in practice and that's it." With only occasional flaps, the outer chains provide stabilization where the flaps exist.
在24英寸机器人的射球链条上，471B 运行三组链条——一条中央驱动链条，两侧各一条高强度链条。这项源自 Tower Takeover 赛季的古老技术防止链条横向扭转。"这链条在训练中只断过一次，就这样。"配合间歇性挡板，外层链条在挡板所在位置提供稳定。
Intake & Scoring Mechanics
吸球与射球机构
Low Motor Mounting for Ultra-Low Center of Gravity
低电机安装换取超低重心
Both intake motors are mounted "really really low" — actually inside the intake ramp itself. This drops the center of gravity dramatically. Combined with the tank, drive motors, battery, and brain all mounted low, the robot can "drive forward and back really quickly without tipping as much." COG optimization is treated as a primary design constraint, not an afterthought.
两台吸球电机都安装得"非常非常低"——实际上位于吸球坡道内部。这大幅降低了重心。结合气罐、驱动电机、电池和大脑都低位安装，机器人能"快速前后移动而不会翻倒太多。"重心优化被作为首要设计约束，而非事后补丁。
Wiggly Drilled-Out Bearings (Self-Fixing Friction)
摇摆扩孔轴承（自我修正摩擦）
Every single bearing on the intake is deliberately loose and wiggly. Some are pillow bearings on loose screw joints; others are standard bearings with the center drilled out. Idea borrowed from team 3D4C. "This reduced all of our friction by like five watts." The wiggle lets the bearing self-align to the shaft under load rather than binding, reducing power draw.
吸球系统上每一个轴承都刻意松动摇摆。有些是松螺栓连接上的枕式轴承，有些是将标准轴承中心扩孔。此想法借自 3D4C 战队。"这让我们的摩擦力降低了大约五瓦特。"摇摆让轴承在负载下自我对齐轴心，而非锁定摩擦。
FTC Silicone Tube Flaps — Grippier Than Flex Wheels
FTC 硅胶管挡板——比弹性轮更抓球
Instead of flex wheels or conventional flaps, the 15-inch intake uses silicone tubing from FTC — zip-tied onto the shaft. "It's super grippy. It doesn't slip at all. It's also a lot more compliant than flex wheels." The downside: they break and need replacement. Tradeoff accepted because the grip improvement was worth the maintenance cost.
替代弹性轮或传统挡板，15英寸吸球系统使用来自 FTC 的硅胶管——用扎带绑在轴上。"抓球力超强。完全不滑。而且比弹性轮柔性好得多。"缺点是会断裂需要更换。权衡接受了，因为抓球力的提升值回了维护成本。
TPU Flaps — Tunable Compliance by Thickness
TPU 挡板——可通过厚度调节柔度
471B claims to be the first VEX team they know of to use TPU (thermoplastic polyurethane) for intake flaps. TPU is "super flexible" and compliance can be dialed by adjusting print thickness. "We didn't really have any problems with it. We just had to figure out how long it had to be, how thick it had to be — that didn't really take that long."
471B 自称是他们知道的第一个使用 TPU（热塑性聚氨酯）做吸球挡板的 VEX 战队。TPU "超级柔韧"，柔度可通过调整打印厚度来调节。"我们真的没遇到任何问题。只需要搞定长度和厚度——并没有花太长时间。"
Criss-Cross Rubber Band Rollers (X Pattern)
交叉橡皮筋滚轮（X型）
Instead of placing rubber bands in parallel rows on band rollers, 471B crosses them in an X pattern — two bands layered over each other. "By combining two of them in an X, it makes it really really strong and squishy." Single-layer bands would both have the same squishiness, but the crossover doubles compression stiffness while keeping the same rubber band count. Inspired by "In the Zone" robots.
替代将橡皮筋平行排列在滚轮上，471B 将其交叉成 X 型——两层重叠。"把两根交叉结合，让它变得非常非常强力且柔软。"单层橡皮筋两者都会有相同的柔软度，但交叉排列在保持相同橡皮筋数量的同时将压缩刚度翻倍。灵感来自 In the Zone 赛季的机器人。
Bigger Middle Sprockets, Smaller Outer Sprockets
中部链轮加大、外部链轮减小
On the flap rollers, the middle sprockets are deliberately larger than the outside ones. Result: the middle is stronger and thicker, balls get more compression in the center lane (faster scoring), but less on the sides (easier funneling). "When we held balls in a two-wide position, the smaller outside sprockets made the balls funnel in easier." Differential sprocket sizing creates lane bias.
在挡板滚轮上，中间链轮刻意比外侧大。结果：中间更强更厚，球在中间通道承受更多挤压（射球更快），但两侧挤压较小（球更容易集中）。"当我们把球放在双排位置时，外侧较小的链轮让球更容易集中。"差异化链轮尺寸创造通道偏压。
McMaster Nylon-Teflon Washers as Chain Retainers
McMaster尼龙-特氟龙垫圈做链条固定
Nylon-Teflon washers from McMaster cover the ends of sprockets. These prevent the chain from falling off even when it's deliberately run loose — the loose chain reduces friction, the washers prevent disengagement. "This made it so this chain wouldn't be able to fall off even though it was really loose because of lower friction."
McMaster 的尼龙-特氟龙垫圈覆盖链轮端部。这使得链条即使刻意松动也不会脱落——松动减少摩擦，垫圈防止分离。"这让链条即使在因为低摩擦而非常松的情况下也不会脱落。"
Flex Wheels at Top Instead of Band Rollers for Funneling
顶部用弹性轮替代绷带轮以集中球路
At the top of the intake, they replaced band rollers with flex wheels. Reason: "If a ball were to go underneath one of the flex wheels, it would want to go to this really big gap in the center." Band rollers would trap balls on the sides; flex wheels naturally shepherd them to the single center lane. Funneling behavior is designed by roller type choice.
在吸球系统顶部，他们将绷带轮替换为弹性轮。原因："如果一个球滚到弹性轮下，它会自然想去中心的大缝隙。"绷带轮会将球困在侧面，弹性轮则将它们自然导向中央单通道。通过滚轮类型选择来设计集中球路的行为。
Funnels & Ball Control
漏斗与球控
Rubber-Link-Mounted Compliant Funnels
橡胶链节悬挂的柔顺漏斗
The bottom funnels are hard-mounted polycarbonate… mounted on rubber links. This creates a "really really compliant and squishy" joint. When intaking, the funnel flexes to let balls through easily. When outtaking, the top poly piece stops the funnel from flexing too far, so balls drop into one lane. "Balls could just go through really really easily."
底部漏斗是硬聚碳酸酯板，但安装在橡胶链节上。这创造了一个"非常非常柔顺且可压缩"的关节。吸球时，漏斗弯曲让球轻松通过。射球时，顶部聚碳酸酯件阻止漏斗弯曲过度，球落入单条通道。"球能非常非常顺畅地通过。"
PLA Compression Bars Replacing Rubber Bands
PLA压条替换橡皮筋
When rubber bands in the ball channel didn't provide enough compression, balls would "pop up" and jam. Solution: printed PLA bars with far more compression than rubber. "These have a lot more compression than the rubber bands. They can't really bend that much at all." Sometimes rigid is better than flexible — the right answer depends on the failure mode.
当球通道中的橡皮筋不能提供足够挤压力时，球会"弹起"并卡住。解决方案：打印的 PLA 压条，比橡皮筋的挤压力大得多。"这些比橡皮筋的挤压力大得多。几乎完全不会弯曲。"有时候刚性比柔性更好——正确答案取决于具体故障模式。
Latex Tube Between Compressive Funnels
压缩漏斗之间的乳胶管
A latex tube placed between two compressive funnels adds inward pressure. "It helped them just compress inwards." The funnels are made from two 8-inch poly pieces; the latex tube between them creates active inward bias without needing hard mounts or springs. Simple, cheap, tunable by tube tension.
两根压缩漏斗之间放置的乳胶管增加了向内的压力。"帮助它们向内压缩。"漏斗由两块8英寸聚碳酸酯板制成，中间的乳胶管产生主动向内偏压，不需要硬性安装或弹簧。简单、便宜、可通过管张力调节。
Under-Bar & Triple-State Mechanisms
低位通行与三态机构
Parallel Bars When Lowered = Mid-Goal Aligner
下降时平行横杆=中框对齐器
Unlike other under-bar designs where the pivot mounts the intake on the ramp (preventing ball pickup when lowered), 471B's design makes the bars parallel to the ground when down. This lets them add a mid-goal aligner on the bot — "most under-bar bots didn't have" — plus they can still intake balls while under the bar. The whole point of under-bar is "to get balls under the bar really easily."
与其他将吸球器装在坡道上（低位时无法捡球）的低位通行设计不同，471B的设计在下降时横杆与地面平行。这让他们能在机器上加装中框对齐器——"大多数低位通行机器没有"——并且能在低位通行时继续吸球。低位通行的要点就是要"非常容易地从下方捡球。"
Triple-State via Dual Solenoids (Not Dual Pistons)
用双电磁阀（非双气缸）实现三态
Most triple-state mechanisms use two pistons per side. 471B did it with one piston and two solenoids — one at the top, one at the bottom. Both solenoids off = free-floating middle state (held by hard stops). Bottom solenoid on = push up. Top solenoid on = retract. "We took advantage of this third state by having these little levers." Saves a piston and pneumatic plumbing per side.
多数三态机构每侧使用两个气缸。471B 用一个气缸加两个电磁阀——一端一个。两个电磁阀都关 = 自由浮动中间态（由硬止挡限位）。底部电磁阀开 = 向上推。顶部电磁阀开 = 收缩。每侧节省一个气缸和一段气路。
Reverse-Boxed Metal Contact Joints
反向盒装金属接触接头
Instead of boxing a half-cut with spacers between metal layers (the standard way), 471B boxes in reverse — putting the metal contact directly. "By boxing it this way, you could have more metal-to-metal contact, which makes the surface area of everything stronger." More contact area = more friction in the locked joint = stiffer structure.
替代标准方式（在金属层之间用垫片盒装半切件），471B 反向盒装——让金属直接接触。"用这种方式盒装，可以有更多的金属对金属接触，让每样东西的接触面积都更大、更坚固。"更大的接触面积=锁定关节中更大的摩擦力=更刚硬的结构。
Solenoid Wiring Trick for Off-State Hood Position
电磁阀接线技巧实现关机收罩
When the robot is turned off, they wanted the hood to retract (so it doesn't catch on things while carrying). They wired the solenoid to the green wire in the VEX solenoid connector — this wire powers the solenoid when the bot is ON (not just when code runs). When powered off, the solenoid deactivates and the hood retracts. "The solenoid isn't powered right now — it doesn't know to go activate."
机器人关机时，他们希望罩子收回（搬动时不会被勾到）。他们将电磁阀接到 VEX 电磁阀连接器的绿色线上——这条线在机器人通电时给电磁阀供电（而非代码运行时）。关机时电磁阀断电，罩子自动收回。
Wings, Defense & Goal Interaction
侧翼、防御与球门互动
The "Rage Bait" Goal Blocker
"挑衅诱饵"进球阻挡器
A simple piston-driven stick at the front that drops down to sit just outside the goal — not inside, so it's not goalkeeping. The stick catches on the vertical edge of the goal frame and can't be pushed forward. "No matter how hard you hit this, it won't go up. This completely blocks people from scoring." Teams at Worlds thought their intakes were jammed. Developed two weeks before Worlds, stolen from 334C.
前端一个简单的气动推杆，下降到球门口外侧——不进入球门，因此不是守门犯规。杆卡住球门框的垂直边缘，无法被推开。"无论你多用力撞，它都不会升起来。这完全阻挡了对手得分。"世锦赛上的战队以为自己的吸球器卡住了。世锦赛前两周开发，借鉴自 334C。
Hammer-Formed Aluminum Decoring Hook
锤击成型的铝制摘球钩
The decoring hook is made from 6061 aluminum high-strength shaft, bent by hammering it around a 3D printed form. Produces a perfect circle, perfectly concentric to the pivot point. "That means that it doesn't have any sort of side to side movement when it goes in and out." Gives the widest possible engagement range — about 1.5 inches where the decoder will successfully engage.
摘球钩由 6061 铝制高强度轴制成，围绕 3D 打印模具锤击成型。产生完美圆弧，与旋转点完全同心。给出最宽的可接合范围——约1.5英寸的区间内摘球钩均可成功接合。
"Sunroof" Aligner — Biased Toward the Goal
"天窗"对齐器——偏向球门
A flip-up plastic piece with rotating 3D printed rollers that catches in the goal corner. The angled bias keeps the robot connected during descoring. "If it was just straight, you would drift away from the goal and that could be a problem. So we bias towards the goal, so we always stay connected while descoring." Simple geometry solves a real driving consistency problem.
一个带旋转 3D 打印滚轮的翻转塑料件，卡在球门角落。倾斜偏压保持在摘球时机器人紧贴球门。简单的几何形状解决了一个真实的驾驶一致性问题。
Long Wedges as Defensive Props & Scoring Blockers
长楔形板做防守道具与得分阻挡器
Wedges mounted at the front extend the drive base's effective length. They can prop up other robots and push them around, but more importantly: sit in a goal and prevent opponents from aligning. "People weren't able to align to the goals because this section of our drive was so long." Key detail: use fender washers at the top to limit wiggle, make hard stops extremely rigid with boxed half-cuts.
安装在前方的楔形板延长了底盘的有效长度。它们可以翘起其他机器人并推动它们，但更重要的是：坐在球门中阻止对手对齐。"人们无法对齐到球门，因为我们底盘这一段太长了。"关键细节：顶部使用挡圈垫片限制摆动，用盒装半切件使硬止挡极为刚性。
Fender Washers: Allow Top Wiggle, Limit Bottom Wiggle
挡圈垫片：允许顶部摆动，限制底部摆动
On wedge mounts, a fender washer (from McMaster) at the shaft top creates deliberate asymmetry in the joint: top is wiggly, bottom is constrained. "It puts less strain on the hole and more strain on the hard stop." The load paths are engineered — the hole in the shaft doesn't take impact force, the hard stop does.
在楔形板安装处，轴顶部的 McMaster 挡圈垫片在关节中创造出刻意的不对称：顶部可摆动，底部受限。"它让孔承受的应力减少，让硬止挡承受更多应力。"载荷路径被工程化了——轴上的孔不承受冲击力，硬止挡承受。
Bulged Side Plates for Escape Maneuvers
凸出侧板用于逃脱操作
The 15-inch robot's side scoot plates are sanded 8-inch poly, deliberately bulged out in the center by about 1/8 inch. When an opponent pushes head-on, the bulge creates a pivot point — the robot can turn and escape. "When someone hits us head-on, I still have room to turn and get away pretty easily." Screws must be flush so nothing catches during the escape.
15英寸机器人的侧滑板是打磨后的8英寸聚碳酸酯板，中心刻意凸出约1/8英寸。当对手正面推撞时，凸起处创造一个转点——机器人可以转动逃脱。"当有人正面撞我们时，我还有空间可以转动并轻松脱身。"螺栓必须齐平，以防逃脱时被勾住。
Electronics & Sensors
电子与传感器
Brain Mounted Underneath — Legal If Battery Cable Is Accessible
大脑安装在底部——只要电池线可及就合法
The brain is mounted underneath the robot to save space. This passes inspection because the battery cable is exposed and easily accessible on the side. "As long as either the brain power button or the battery cable is accessible without lifting the robot, you're fine." Saves massive internal volume — originally done to make room for a front intake path.
为节省空间，大脑安装在机器人底部。此举通过检录是因为电池线暴露在侧面且容易接触。节省了大量内部容积——最初是为给前吸球路径腾空间而做。
Empty Wire Heads: Crimped to Protect Brain Ports
空白线头：预压接以保护大脑端口
With the brain facing the field bottom, dust is a constant threat. Empty wire heads cover all unused ports. Critical detail: they MUST be crimped even though there's no wire. "If you don't crimp them, the little metal pins will push the metal pins in the brain in and can actually damage them." Uncrimped heads can permanently deform the brain's internal pins, making future connections unreliable.
大脑朝下面向场地底部，灰尘是持续威胁。空白线头覆盖所有未使用的端口。关键细节：即使没有线，也必须压接。"如果不压接，小金属针会将大脑内的金属针推入并损坏它们。"未压接的线头会永久变形大脑内部针脚，使未来连接不可靠。
Custom Low-Profile Optical Odom Pod
定制薄型光学里程计模块
A custom odometry pod with a 2-inch traction omni wheel (rollers from 3-inch omnis), paired with a low-profile CUI Devices optical encoder from Mouser Electronics. Wired to two 3-wire ports like old ADI encoders. "The resolution isn't quite as good as the ones VEX sells, but it's more than good enough for odometry to be consistent." Tradeoff: lower res for lower physical profile.
一个定制的里程计模块，装有2英寸摩擦全向轮（滚子取自3英寸全向轮），搭配 Mouser Electronics 采购的 CUI Devices 薄型光学编码器。用两根三线端口接线，方式如旧 ADI 编码器。"分辨率不如 VEX 卖的，但对里程计一致性来说已经绰绰有余。"权衡：更低分辨率换取更低的物理高度。
Wiggly IMU Mount — Vibration Noise Reduction
摇摆IMU支架——振动噪声降低
The inertial measurement unit is mounted on a deliberately wiggly mount to mitigate vibration. "If you do this and check for yourself, it's very good. It just removes a lot of noise." Mechanical isolation of the IMU from drive train vibrations produces cleaner gyro and accelerometer data for autonomous routines.
惯性测量单元刻意安装在可摇摆的支架上以减轻振动。机械隔离 IMU 与传动系统的振动，为自动程序产生更干净的陀螺仪和加速度计数据。
Strategy & Meta Tricks
策略与元技巧
Over-Tune Scoring for Sticky World Goals
为粘滞世锦赛球门过度调校射球
Before Worlds, knowing new plastic goals would be stickier, they tuned the scoring to shoot balls harder and further than needed at local competitions. "I tuned the scoring to go further than I wanted it to. That way at Worlds, I knew it would be a little worse and it would be good enough." Anticipating environmental changes and baking the margin into the system.
世锦赛前，知道新塑料球门会更粘滞，他们将射球速度调校得比本地比赛所需的更强更远。预判环境变化并将裕量预先嵌入系统中。
Zip-Tie Autonomous Alignment Jig
扎带自动程序对齐夹具
A zip tie shoved under the robot at the start of autonomous ensures consistent positioning relative to the parking barrier — without the robot actually touching it. "It's just so that we could always start our robot in the same position relative to the field tiles." Parking barriers are inconsistently positioned; the zip tie removes that variable from the autonomous routine.
自动程序开始时塞在机器人下方的一根扎带，确保相对于停车栏的一致定位——而机器人本身并不接触它。"只为让我们的机器人在场地瓷砖上总是从同一位置启动。"停车栏位置不一致，扎带将这一变量从自动程序中移除。
"Slap Another Motor On It" — Brute Force Fix
"再加一个电机"——暴力修复法
When the 15-inch robot had jamming and funneling problems, instead of "doing it the right way and fixing those problems," they simply added a third motor to the intake. "This worked super well though. The scoring like instantly improved." Sometimes pragmatism beats perfectionism. The extra power overcame the mechanical issues that would have taken longer to diagnose and fix properly.
当15英寸机器人出现卡球和集中球路问题时，他们没有"按正确的方式修复那些问题"，而是简单地在吸球系统上加了第三个电机。"但这效果非常好。射球立即改善了。"有时候实用主义胜过完美主义。额外的功率盖过了那些需要更长时间诊断和修复的机械问题。
"If we were good, we would have done one lever, one S or both lever or whatever. But this is much more fun, I think."
"如果我们很厉害，我们会做一个杠杆、一个S型或双杠杆什么的。但这个有趣多了，我觉得。"
— Gil, 471B Easy Robotics
— Gil，471B Easy Robotics