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About AndyCW

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


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  1. AndyCW

    Axle Collection Thread

    Just realized I never shared the following images with the community. These are the front and rear axles of one of my more recent rock bouncers. As well as some of the installation images.
  2. AndyCW

    [Help] Crawler suspension.

    Check this out. It's some pictures of my last functional crawler. There may be some inspiration in there.
  3. AndyCW

    Gear questions

    Another option, would be to make a heavy flywheel. Use the motors to spool up the flywheel(s) and the use a trigger mechanism to nudge the aircraft into the launcher. This way you are not using the torque of the motors to accelerate the plane, but rather the inertia of the flywheel.
  4. AndyCW

    servo motor question.

    The servo will just stall. There are videos on YouTube demonstrating the servo's characteristics
  5. Get on bricklink and just get the parts you need rather than buying a whole set for a couple of parts. The geometry of the second rack, looks better. The challenge we be making it structurally sound. Alternatively; the older hubs and arms might make things simpler. Worth a look.
  6. The breaking gears in the differential and shattered universal joints can be partially alleviated by using portal hubs. Many of the official sets have used this approach
  7. That is certainly a good start. Mounting the spring to the lower control arm, without a link between the lower and upper control arms, will result in the springs pushing the lower ball joint from the wheel hub out of the control arm. The servo turns 90 degrees each direction, with a 12t pinion the gear that goes best with that rack, will result in a rack that moves 1 stud side to side. The wheel hubs you have cannot support that level of steering lock. If you are going to stick with those wheel hubs, try using an 8t pinion gear and rebuild the rack to support. Still not ideal, but far better.
  8. AndyCW

    Lego2016Lego MOC's and WIP's.

    Welcome back. The axle collection thread might be of some use.
  9. 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?
  10. 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.
  11. 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.
  12. 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)
  13. 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.
  14. 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.