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Showing results for tags 'Fast'.
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Hello all, This MOC has been in the building works for quite a long time but I am pleased with the result. First things first, this model was inspired by vmln8r's The Carver, one of only three other Lego tilting trikes I could find on YouTube. However, my model is bigger than his and faster, it has a bigger wheel diameter but same motor and theoretical RPM. The model itself is propelled by a L motor geared 1:1 and tilting is done by one PF servo motor geared 11.669:1 turning a turntable connected to the rear axle. The steering is done with the same motor which pushes and pulls a set of rods which aren't quite as long as each other which means that the front wheel is straight even though the servo is slightly offset. Enough talking, here are some pictures taken on a Coolphix L18: The pictures taken on my GoPro Hero 1 And finally, the video: Thanks for reading and please leave any feedback in the comments below, Jim. -
So, a long time ago, I decided, on a whim, to make a small, fast car. Inspired by Mahjqa's Ice9 racer, I built something similar, but with 5 years of parts advances, namely the L and servo motor. Ice18 by Saberwing007, on Flickr it is similarly compact, but I was not able to make a nice shell for it, and lost interest in the project. As a matter of fact, this just goes to show that I don't really like fast things. Controlling them indoors, in a tiny apartment, on carpet, is a pain in the rear. Not helping is the fact that using stock PF outside is impossible, and then you have control delay, which all in all makes the experience no fun, at least for me. Maybe if I had an Sbrick... Anyway, let's go into some technical details. My version uses an L motor for propulsion, and due to the new diff, has a slightly lower gear ratio,3.57:1 vs 5:1 on Ice9. However, the rpm at the wheels is actually faster, due to the speed of the L motor, 971 vs 730 on Ice9. You do need quite a run up to use that speed, however. Because of the servo and L motor having more mounts, I was able to use them, as well as the battery pack, as stressed members. The chassis is quite floppy without the battery box, in fact. But hey, it adds lightness. Ice18 by Saberwing007, on Flickr Versus the above view, there is not really a whole lot to see that's different on the bottom view, but most people want it. Ice18 by Saberwing007, on Flickr The gears are braced on all sides, there is no way for them to skip. There is no way for axles to walk out, for that matter. Ice18 by Saberwing007, on Flickr Steering lock is good, there are no restrictions, or chassis rubbing. And, of course, my inspiration. Ice Nine views by mahjqa, on Flickr I might be able to build small, but I sure can't do stylish designs, or photography, like Mahjqa can. I also have an .LXF file, it has a canopy, which is optional. It will also be posted to Rebrickable, and I will add that link when it is moderated. LXF:http://www.brickshel...Ideas/ice18.lxf Rebrickable:http://rebrickable.com/mocs/Saberwing/ice18 Thanks for viewing. P.S. There is not going to be a video, there isn't really anything to show, and I need the servo for a project that's a contest entry. -
hy i've found this video and it tought if it was possible to make this in lego? http://www.hobbyexpress.com/1_10_wraith_4wd_rock_racer_rtr_1042357_prd1.htm Thanks -
Hello, after a long pause I decided to begin a new project, another high speed chassis, but this time I wanted to build a chassis with proper driven independent suspension and lighter than my previous build. After many attempts in the past, I concluded that this wouldn't be possible without printed pieces, as lego u-joints just can't survive the shock load of 4 buggy motors. My previous MOCs either had solid driven axles or suspension using only one u-joint, which didn't have ideal handling. Now, after testing efferman's 3D printed CV joints (coupled with Lego spherical gears, similar to 8880) on a small MOC, I used them on this large scale project. Results - it works! They easily handle the power and CV joints are more smooth in general. There is still room for changes and even after these pictures were taken I reinforced the rear suspension. Features/details: RWD - 4 Buggy motors, with 2 powering each wheel, they aren't coupled through the center. Independent suspension on all wheels, front uses efferman's printed wishbones. Servo steering Anti-roll bars 3rd party electronics and custom battery pack link for the curious Total non-Lego/modified parts: Wheel hubs made by nicjasno link Modified 9L links Printed wishbone pieces link Printed lower suspension arm pieces link Printed spherical gear holder (CV joint) link Modified pneumatic cylinders Photos: ^Pneumatic tubes work well to tie down the battery. Excuse the sand, took it offroad for a bit Oh man, I should never sell my parts after using them like this Enjoy!