Fluwoeb's Hall of Inventions

[Fluwoeb]

Hello everyone!

I am a recently new EB forums member (joined in 2020). I am a college student in the US pursuing Mechanical Engineering. I really enjoy building vehicles and mechanisms with Lego Technic to help visualize the ideas in my head and the designs I learn about from other people. I wanted to create this topic so I can record my older mocs and have a place to keep some current ones and W.I.P.'s as well. I will start adding more old pictures to this topic as I have time. I hope you enjoy all of these old (some finished, some not) M.O.C.'s of mine from my passionate hobby in Lego:)

To get started, here is one of my oldest mocs to date, the R34 Wasp Jet (I made that name up btw):

 

I have some other mocs from that era that I will share pictures of, but I have to transfer them from my camera SD card to my BrickSafe:) First I will share some other mocs that I have uploaded pictures of to my BrickSafe already.

Here is an old Hummer W.I.P. I never finished... lol. I was waiting to buy some of these parts for the front axle wheel hubs. (sorry for weird camera angles)

(note the use of a technic bushing as a differential lock selector ) 

Here is my one and only Battlebot. It is powered by two PF XL motors with a 24:1 gear ratio (worm gear to 24-tooth). I designed it as a big version of the 2x3 slope brick, but I have no idea if I actually created it at an accurate scale ratio, lol. I could have added a caster wheel towards the front, but I never got around to that. I used it against my brother's Mindstorms EV3 bot that he created which was 6x6 and my bot worked excellently. The Mindstorms just kept losing wheels and could not tip over my bot. The downside was that I did not create any attack mechanisms, so was really just playing defense the whole time:)

Edited June 18, 2024 by Fluwoeb

[Bluehose]

That's pretty good stuff ! The quality of the mocs are way above the quality of the camera ! ^^

[Fluwoeb]

Here is a picture of a 3+R transmission I built entirely using bevel gears, except for the visible 8t and 24t gears on the outside. (I don't have any more pictures of it unfortunately)

 

And here is a half-track truck I built a while ago... that was the last time I used my PF servo because I did not protect the gears in the drivetrain and they ate the cable.

  

 

Now for a high-ground-clearance axle that at the time I thought was revolutionary, though it does work really well since the gears go straight into the inside of the wheel.

 

 

 

Moving on here is a 4x4 vehicle I made, which I never ended driving since I didn't get the drivetrain all connected. Sorry for the blurry photos:)

 

This is where I had started using a PF M motor for steering after my servo died...

I used torsion bars for the front suspension:)

 

Here is a 2WD model I made. The u-joint geometry on the rear axle was not correct, but it operated okay. I think I put just a simple two-speed transmission in it.

 

Here is the front of a chassis with a Boxer-8 piston engine. I never finished this one... lol

I mainly wanted to get good suspension articulation and a sharp steering angle for this model along with fitting the piston engine on top.

 

Here is yet another 2WD chassis. I don't know why I had to do two inline-4 piston engines right next to each other... I also don't know what I was doing with the rear axle drivetrain... 

sorry, these are blurry again...

 

Alright, now for a model I completed. I took the chassis out of a small remote control car, and replaced it:) (This was my first try and it worked well minus a little bit of rubbing on the front wheel fenders)

These are some underbelly images of a second iteration... which I couldn't find any more pictures of. 

 

And here are some pictures of yet another version, but this time I didn't finish it. (notice how this one got more and more sophisticated with a piston engine, linear actuator for steering, and Ackerman steering geometry) 

 

And now... for a tracked vehicle,because it doesn't have a turret to make it a tank:)

[2GodBDGlory]

Reminds me of good times fooling around with Technic as a teenager! Lots of fun, even when I didn't make anything amazing

It's fun to see!

[Fluwoeb]

A custom method to use the 5L CV axles and 5L suspension arms in combination with the old yellow hubs:

Edited February 19 by Fluwoeb
add description

[2GodBDGlory]

Looks nice! What's the thinking behind the angled suspension arms? Is it to avoid interference with the DBG CV part on the chassis? It seems to clear fine for me, at least for a reasonable range of suspension travel. Or is it potentially more realistic? Either way it looks cool, and I like to see something different like that!

[Fluwoeb]

Thanks @2GodBDGlory!
Yes, I angled them to avoid the DBG CV part on the chassis. Otherwise the 5L LBG suspension arms would be in line with the DBG CV joint and its top edge would collide with the upper control arm when in its lower range of motion. Arguably, there would still be suspension travel, but it would be limited drastically and the shock absorbers could place unnecessary force on the DBG CV joint if arranged in a way where they are forcing the suspension to its lower bounds. I like to maximize suspension travel where I can but that was just a conceptual venture to see how practical it would be in a build. The geometry seems to work well, but it does not seem exact so I might try a slightly different angle in the future. The goal was to utilize the 5L LBG CV axles and the old hubs for a narrow wheelbase but also to keep the 5L suspension arms and see how it would look. In the future I might try a slightly sharper angle for the suspension arms and potentially use the 6L DBG wishbone arms, at which point it would basically become a trailing arm suspension... 

Edited February 20 by Fluwoeb
clarification