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Feenix posted:Soooo, the Traxxas BigFoot No.1 is awesome. Fast, and super fun. Took it out today with my kid and he did great, right up until he panicked and hit the only picnic table in an entire field, head on. This experience will serve you well for when he crashes your actual car as well in a few years. 
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Feb 14, 2018 02:15
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Kak posted:I would stay away from Losi. Their quality has gone to poo poo ever since they were bought out by Horizon Hobby. My kid and I raced Losi 22, 22-4, and 22T's last season and I found them to be of comparable quality to my Associated and Mugen cars. *shrug*
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Feb 14, 2018 05:09
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CommieGIR posted:I'm probably going to start drafting some CAD to make a 3D printable version. That might be a better idea.
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Mar 12, 2018 07:35
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dreesemonkey posted:FYI there is a RC thread in AI: I've been looking into that for building a robot for the Robomagellan competition: http://robogames.net/rules/magellan.php Would the Stampede have any problems with an extra 1-2 punds of weight on its chassis (Raspberry Pi, LIDAR sensor, GPS unit, second battery)? Is there anything else I might look at? I would need something that can easily handle transitioning from pavement to grass and running into low curbs, but nothing too extreme. I was kind of tempted by the Xmaxx, but I'd prefer something that takes batteries which can be legally carried aboard an airplane.
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Mar 18, 2018 04:07
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Cockmaster posted:I've been looking into that for building a robot for the Robomagellan competition: That's really cool! I think it would be doable. There may be a better RC platform to start with, the Stampede is good but the short wheelbase and all that it's not necessarily the most stable, but I'm guessing it wouldn't be traveling real fast so it would probably be fine. For the extra weight, you could maybe use a really stiff shock oil or something as the suspension does want to compress fairly easily. A RC that's a "crawler" might be a better platform just in terms of lower speed and suspension articulation.
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Mar 20, 2018 20:03
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Extra weight means you need stiffer springs, not (only) heavier oil. Springs affect the weight-carrying capacity while oil viscosity affects the damping.
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Mar 20, 2018 20:19
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Sagebrush posted:Extra weight means you need stiffer springs, not (only) heavier oil. I gave it some thought, I wasn't sure if there was anything available and I'm assuming these are going very low speeds so it probably doesn't matter that much.
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Mar 21, 2018 19:43
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dreesemonkey posted:I gave it some thought, I wasn't sure if there was anything available and I'm assuming these are going very low speeds so it probably doesn't matter that much. Not necessarily that low speed: https://www.youtube.com/watch?v=j0d6qT2OeDk With most of them, it appears their speed is limited by the fact their collision avoidance is based on cheapo sensors (such as ultrasound). I was thinking that if I could use something better (either a Sweep LIDAR unit that I impulse-bought off Kickstarter a while back, or a Jetson board and a stereoscopic camera), I could ... maybe not floor it, but gain a substantial advantage. I'd mostly need something that will remain stable when cornering or hitting small bumps at moderate speed. For what it's worth, at least one or two of the contestants in last year's Robogames used the Xmaxx. Plus it turns out that under current TSA rules, I could bring up to 4 cell 6600mAh packs without running into the limit.
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Mar 22, 2018 00:21
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