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About AndyCW

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    Lego, automotive performance, games, RC planes, unmanned aviation


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  1. AndyCW

    Lego2016Lego MOC's and WIP's.

    Welcome back. The axle collection thread might be of some use.
  2. Despite the flack you are getting, I'm looking forward to more of your work. Truthfully; if your having fun, then you are already doing everything right. What's next on your lego agenda?
  3. I haven't seen many crawlers on here recently. So your creation really made me smile. The caster angle on the front looks extreme and is likely causing issues. Try doing a body lift and reposition the shocks to maintain your scale. This will also lower you center of gravity. CG Instead of a body lift, you could hack the quarter panels more to clear the tires. If you were to put 42 inch tires on a real patrol, the quarter panels would be almost entirely eliminated. Check out Aussie Racer on youtube.
  4. This car is awesome and I could never create something of this caliber. However; there are some inaccuracies in your opening statement. It's also the car made famous as "Eleanor," Steve McQueen's awesome ride in the original 1974 movie Gone In Sixty Seconds. This "Eleanor" was the movie car from the 2000 version of Gone in Sixty Seconds staring Nickolas Cage. Steve McQueen died in 1980 and therefore couldn't have been in the movie, but he did drive a Mustang in the 1968 movie Bullit. The 1974 iteration of Gone in Sixty Seconds did have a "Eleanor" Mustang, but it was a 1973 Mach1 and didn't star Steve McQueen. Did you know that you can own an "Eleanor" replica built new today? Kudos to creating this amazing model.
  5. AndyCW

    [MOC] Truggy

    Awesome and simple. To get better performance, you need to scale down or manage to direct drive those wheels with the motors. (ie no gears)
  6. AndyCW

    [WIP] 4x4 Crawler (More or less done!)

    Not so much a comment on the body work, but more so on the 'placement of the body on the chassis'. It appear that the body is lifted too far above the chassis. The top of the tire is far below the bottom of the quarter panel This unnecessarily raises the center of gravity and presents this image.
  7. AndyCW

    4x4 Rock Crawler

    I use a Pololu TReX DMC and a 2.4 Ghz radio system; mounted inside of an old 4.5v C cell lego battery box I had lying around. Using Philo's motor specs and assuming a linear relation between current consumption and torque output, even the Sbrick and BuWiz will limit the power output of the 5292 buggy motor. The above motor controller has enough power to supply 4x 5292 buggy motors at full power. Where either of the other two options struggle to fully feed one of them. My signature has some links that demonstrate the available performance.
  8. AndyCW

    4x4 Rock Crawler

    looks like a rock bouncer I've made multiple 2x buggy motor rock crawlers/bouncers. What overall gear ratio are you running? What is the total weight? I've discovered that I can run 2x buggy motors at 5:1 with 108mm tires on a 3s lipo and it provides entertaining performance
  9. AndyCW

    Mobile Ship Loader Conveyor

    You're going to want to: reinforce the pinion bearing to prevent the pinion from 'walking' up the ring gear the 1L bush allows the axle with the pinion gear to deflect and will cause the pinion gear and ring gear to skip provide some cross bracing to prevent the ring gear from 'walking' away from the pinion the 7L liftarms on either side of the differential can separate and let the ring gear come out of mesh with pinion gear A smaller tire/wheel and the associated smaller loads will reduce the chances of these above issues.
  10. Torsion bar It's easy to implement with lego and prevalent on trailers.
  11. AndyCW

    Gearing buggy motor

    All things equal, when you have similar output speeds, you will get similar torque. In this case you are using the same motor. Friction becomes more of an issue the faster things turn To minimize losses through a gear exchange, use the largest gears possible (most teeth) and brace the gear enclosure to the maximum extent possible 12t to 36t (3:1) is more efficient than 8t to 24t (3:1) This is one of the reasons that the knob gear is so poor
  12. I know that the angled steering links help with ackerman, but they also induce slop. I've found several things to reduce slop. Try to make the steering links parallel to the axle. Make the steering arm on the portal hub longer, but this reduces steering angle. Mount servo directly on axle If you can put in some kingpin inclination and caster angle, then the slop won't be as noticeable because the wheels will 'want' to go straight ahead.
  13. AndyCW


    I use 3d printed parts, non-lego tires, 3s lipo batteries, a Pololu TRex DMC, a Traxas 2.4 GHz radio, and sometimes even my SBrick. I do not alter parts (generally) and I do not use Kragle. I also strive to keep the non-lego parts to a minimum in my MOCs. If I can 'make it happen' with lego, then I'll have no need to resort to non-lego. I'll try numerous iterations of a lego design and only if they have all failed do I look at non-lego solutions. I'm not a purist by any measure, but do understand it.
  14. I love this project. For some reason the body work reminds me of a TVR.