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Mechbuilds

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Everything posted by Mechbuilds

  1. Mechbuilds
    I asked @efferman for help again and he figured out a ingenious idea for a same sized front axle but a different suspension mechanism. Gonna build it first and check if it works for this setup. Reveal later.
  2. Mechbuilds
    Hmm.. Are those springs at a state of constant compression? Because when the other spring compresses as the suspension tilts to the side, the other spring would stretch.. Or do you have a some kind of mechanism that lets the spring stretch?
  3. Mechbuilds
    This is a level of lego brilliance that's hard to even comprehend.. Yet this guy keeps pushing mad scientist level of mocs.
  4. Mechbuilds
    I figured that solution myself. But i still have issues with the axle bending forwards under load. Works much better with gray soft springs but still needs a little bit of work. Where you see the springs end, i plan on putting a fake engine behind it. The arms on the sides are for steering so a servo will be under the engine. And a fake radiator/front grille in front of the springs.. Space is limited and everything needs to be super compact. If you can come up with a mechanism that works better, i'm still on the design phase and i first want to finish a front axle that has no illegal connections and no parts bending under stress. I want this model to be a display piece that you can drive so having parts stressed and bent for long periods of time is a no go. EDIT:; This is how the steering works:
  5. Mechbuilds
    This has such a strong mad max vibe.. Even without a monster truck chassis, it would work great with a normal truck chassis too! But i like the aggressive look!
  6. Mechbuilds
    Sometimes the simple solution is the best one:
  7. Mechbuilds
    Unless anyone has a similar style'd hot rod front axle setup on roughly this scale? I want to put the servo under the V8.
  8. Mechbuilds
    I wonder.. Has anyone ever made a plane out of lego that works with a propeller that you have to throw with your hand but it flies only with the propeller thrust and steers with a servo? Is it possible? I'd love to see that one happen next!
  9. Mechbuilds
    Hi! I need help with the suspension geometry on a front axle. LDD here! And here's the pic: It's basically a copy of the larger one but reduced in width by 2 studs. The springs are giving me an issue. Can somebody help me how to reassemble the front end? Also the steering arms need to be attached so there is two 20 tooth gears, one for each arm. and a 12 tooth gear in the middle. That way i can attach a servo to the middle with another 20 tooth gear + 12 tooth gear reduction for steering. I will have fake engine on top of the suspension and the servo under it. All i need is a way to mount the front springs kind of like the wider one. Sharpest of you already figured out it's one of @Lipko's mocs.. The hot rod wrecker. I'm basically trying to make a bucket hot rod ford with the same front axle but only 2 studs shorter width wise. It should be theoretically possible but the springs are giving me a headache. EDIT: I think i also found a problem with the front two steering arms.. It won't let the axle go up and down and sideways tilt smoothly. It will tilt slightly to the side. So it needs a completely new pan hard rod system in the front.
  10. Mechbuilds
    Nice and simple. Wish the first post could have a massive list of links to each post of axle so it would be a nice directory where to find suitable axles categorized by width and length.
  11. Mechbuilds
    You have a nice funky style on your mocs. I like it!
  12. Mechbuilds
    You can't do it in this scale.
  13. Mechbuilds
    Because you can't do sick burnouts and drift with a differential.
  14. Mechbuilds
    Here is the simple elegant way of attaching the ball cup part higher so i can mount the axle better: Short and stubby! But the next issue is the servo. I can't winden the axle from this. Also i can't put the servo any lower or it will interfere with the diff. Any ideas how to rework the steering? And it's not just putting a beam and shorter gear rack on because the whole gear rack will move half a stud inward when turning. So it would interfere with the 3 long beam that's there for structural integrity.
  15. Mechbuilds
    It will be tough because of the steering geometry. The gear rack part moves inside by half a stud when the steer is at full lock. This will interfere with the drive gear. I will need to figure out a solid way to do it. I think i could get away with making the axle higher if it's shorter. Perhaps even add a second gearbox in the axle itself.
  16. Mechbuilds
    Like the addition of railings.. Adding a chair to the side of the crane for a second pilot would have been a nice touch.
  17. Mechbuilds
    Beautiful models! Well done!
  18. Mechbuilds
    That's a mean truck! Really like what you've done with the exhaust!
  19. Mechbuilds
    Well it's not too late to convert this into a regular axle by using the ball cup fork part and just connect the front end with springs. With double yellow springs, it could be stiff enough to handle the weight. I can give you the LDD if you want to take a crack at it. LINK: Super awesome pendular heavy duty axle only for winners. I'd personally like the normal axle more than a pendular one but i'm terrible at making axles. EDIT: The issues with the current setup is: - Issue with the servo wire touching the chassis - Not great ground clearance with the larger turn table at the back - Axle is very long and tall If a normal axle can be made the pros would be: -better ground clearance -Shorter axle if servo can be mounted in the chassis instead. -Shorter nose due to no turntable at the front. -Better suspension, up and down and left and right. That's why i'm not satisfied with the current setup but it does work. It's just not that great.
  20. Mechbuilds
    Front axle done: Lowering the servo by one stud would be impossible. It's already against the H frame.
  21. Mechbuilds
    This is my front axle design. Just need to figure out how to brace the turn tables + servo so it's sturdy enough and also figure out a way to mount the springs. I think i could get away with just one spring per side with a beam that lets the spring lengthen when the other side is compressed.
  22. Mechbuilds
    The hotrod cab itself is cool enough for instructions alone..
  23. Mechbuilds
    The rear bed looks a bit nude.. I'd add a "basket" to the side of the wrecking ball with a chair so it would have a place where the user would sit and control it. Maybe two sticks for "controlling it". Just an idea. Also the bed could use 3 studs tall fence around it made out of chains for example. Just to give it a little bit more detail. But it did turn out great. I'd add a little bit more detail to it to make it really pop and not look unfinished. Don't get me wrong, you've done great work with it.
  24. Mechbuilds
    Wow.. That's insane!
  25. Mechbuilds
    I can't figure out a stronger way to build the front steering axle so i've used this: Problem with it is those ball joint pieces popping off from the connector bit. I wonder if i could get away with changing those ball cup arms into 3 long beams and adding those connector bits. I wonder how i could get the middle part connected to those connectors to sturdy it up. EDIT: Hmm i think adding a 5 long beam to those ball cup ends should sturdy it enough so the studs don't pop loose.
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