Mechbuilds

What is the secret of cramming so many motors in yet so compact design? Do you first make the functions in LDD and build the chassis around them?

Thank you very much for sharing this! I might use this in my next moc.. (Mercedes moving truck with lift gate.) It's based on the TLG's Arocs B model but converted to RC.

Had a blast driving with it.. Now i think it's time to disassemble it and make it to a tracked tractor.. Before i disassemble it though, i need to figure out a way to have an XL motor drive it and either a medium or a large motor steer it.. Does anybody have a subtractor build that's compact and driven by one XL motor and steered by one large/medium motor?

Awesome!

Image dump where i'm currently: I just can't figure out how to make this suspension sprocket work in the front.. I need it to move up and down.. EDIT: Figured out a solution.. I lengthened the chassis a bit and put down the third bogies. It's not too long after all.. I'll post pictures some time soon.

Update: EDIT: I'm going to make the front sprocket have a suspension so it can go up and down, simultaneously tensioning the tread. I can't figure out a good linkage that lets it work properly.. The sprocket seems to bend outward once the tread is attached.

That set kind of reminds me of the Atlas from Mech Warrior Online. You could easily build something similar but different colors and then just add guns. EDIT:

Just FYI. It's Ponsse. Not ponesse.

The project is slowly but surely crawling forward.. Currently i'm waiting for some T beams and hard springs.. But while we wait: This is the new and improved chassis.. It's going to be 2 studs wider and much much longer.. The gearing is currently 1:1 so it's going to be very peppy.. I might convert it back to 3:1 to make it slow again after i get to test the fast mode first..

The tank chassis got a small overhaul and the bogies got completely redesigned. Here is my new bogie design. With hard springs, they can handle the weight of the tank. The image shows all parts used. I purposefully made it a modular design so it's easy to install and move on a long beam. Feel free to copy this design! I call this the: "Mechbuild's modular bogie"

https://animenetzone.com/anime/tv/87308-girls-und-panzer-episode-1-english-dubbed For english version of girls und panzer.

I wish lego would make Ponsse forestry machines..

Respectful to the old classic technic style. Well done!

I'm thinking about making a LDD file of this tank.. Would anybody want instructions on this once it's finished? Please comment! EDIT: Still trying to figure out a smart way how to attach the battery... At this stage, the battery is mounted in a way that you need to disassemble the tank to change the batteries.. I need to figure out a solution so the battery will fit and not sacrifice the looks of the tank.

Thank you very much for sharing! EDIT: Has anybody ever tried making the controller more ergonomic?

Has anybody made any custom IR remotes for their mocs? Joysticks and clever tricks.. Please share in this thread! Here is my simple grip moc for a basic skid steer tank: It's much better to hold than the remote just by itself.

Does anybody have any extra L motors to sell for cheap? Looking for two L motors. (Need shipping to finland.) We don't have any lego shops in my city that sell just the motor.

A little bit of progress has been made. Now the tracks are assembled and the tank frame is taking shape! However, i'm facing a few problems.. 1. I still don't have those L motors.. Since they're part of the frame, i can't really continue without them. 2. Battery fitment is going to be a nightmare since the battery will be very close to the front upper wheels.. 3. The middle bogie basically floats

It's a nice and compact solution. However, i don't think the teeth are very durable when the bucket has some weight added to it.. Being that it's only a half bush thickness and held on by a cross axle stud.

I agree with Erik and nerdsforprez. Following instructions is not challenging. Why would you look for a challenge in a book of solution? Create your own challenge and build a moc. Do as i do, figure out what you want to do at that given time.. Think of ways to make it more complicated. Try to make it as small as possible.. Now that's challenging. But the payoff is huge when you manage to figure out a simple, yet effective solution.

Update! Added driving sprockets with gearbox in the middle. Both sprockets are clutched (For now.. Might swap to 24 teeth gears if the clutches slip all the time) There is room for two L motors and a battery in the middle. The gearing is setup to 3:1. Now i'm just waiting for those two L motors and i can continue the build!

I'm sorry to hear that. Hope you and your family are safe! Back on topic, I'm taking the lazy way out and just going with two L motors.. Gotta set up an order and wait till they arrive. They should have plenty enough power and torque to move this thing. It's not that big to be honest. So skid steer it is!

All for the greater good.. My plan is to make a technic RC tank chassis and use normal bricks as the outer shell to make an RC tank. Currently i'm thinking if i should make a subtractor gearbox setup and use a XL motor as the drive motor and a medium motor for steering OR use two XL motors and just have skid steer instead. I wonder what the benefit of having a subtractor is over just two XL motors side by side..

8x8 offroad project has come to an end. It's a functional 8x8, 4 wheel steering offroad frame. Fully RC. I need parts for my tank project so this project is scrapped and sacrificed for the greater good.. Moving on, i've finally figured out a good bogie suspension for the tank and here's a little sneak peek.. The rear sprocket is the driving wheel.. And the wheel at the top is where the track rests.. Now i need to figure out a way to have a front wheel that has a suspension on it.. Any ideas or tips? The front suspension needs to be max 6 studs high, 7 studs long and 3 studs wide. I'll be using these for the springs:

After testing out this bogie design. I found out that the sprockets would stay up and stick that way.. Back to the drawing board...