I Evolved This FAILED War Machine Into A SUCCESS 

The problem is (as always) with sm's optimisation and how it handles rigid body updates, when you turn game tries to make track more "stable" so it reduces physical updates for it, this is mostly done due to the fact that when big body with a big area touches the ground the physics engine counts not one big collision but rather a lot of small 1 point collisions, which lags out the game. Until devs took (which as they said in QnA they are doing for chapter 2) a deep dive into physics engine they just made game "to not really think about it" when such collision is detected, when you put weight on the track it just updated it and the game's like oh? we're moving? so until more work is done on the physics this problem is to stay. I hope I explained it well)

I would honestly be 100% down for a series involving you evolving this thing into its own legitimate tank one function at a time

The Tsar tank from WW1 would be really cool to see in this game too.

the derailment issues might be fixable by making the grove deeper

This tank has quite the history to it, another good video

The last few weeks of vids have been killing it. This is the content from scrap mechanic I've been waiting for.

22:46 "I'm sorry, you've thrown off the Scrapman's groove." *throws the offending chest into the Explosive Tapebot pit*

Lots of my thoughts here already. Haven't seen this one though: An option to drive the top wheels alone, so you can get the track back ahead of you in sketchy spot, assuming friction will cooperate lol. Thanks for the vid!

Here is an idea. A multiplayer derby race with different designs of those machines should be pretty fun

An easy way to make it turn would be to spawn 2, then connect them by the sides with a bit of redesigning, then it would look like a mark VI tank a bit.

Imagine how proud they would feel seeing their design actually semi-work!!

You are brilliant ScrapMan. According to steamcharts, barely 2k average monthly people play this game, but hundreds of thousands of us will happily watch you play! Fix idea: 2 more wheels on top of the track to pin it (the tracks) between the top wheels and their new parallel counterparts could solve derailment as well as instability issues. Probably will need more weight on the bottom section though.

I will be honest; when suggesting scrap man fix this design, I did not think he would be able to make it turn so well. Time and time again, you impress me to no end

imagine a time traveler seeing this, going back in time to when they were developing this machine, implementing those improvements, and unexpectedly causes an advance in war machines which then leads to a cascade of progress and sped up warfare technology and a complete different result in the prehistoric wars and the end of the world and the heatdeath of the universe. the end. thanks for comming to my TED talk.

Good job! You fixed so many issues with this machine. But, (this is my opinion) I feel like the turning mechanism isn’t the best it could be. Because it has such a small contact patch and it will have to bear basically all the weight of the whole machine, if you were on say mud, the wheel would most likely just fall through the mud due to the pressure (or large amount of force exerted on a small patch) and lose traction, rendering turning impossible. This doesn’t happen in Scrap Mechanic because the ground isn’t able to flex / bend / move. But in real life it would. Of course, you could just try and drive to harder land but, this still takes away from the machine. the whole idea of the tread was to take away pressure. Sure, it’s the weight of a tank, but because the contact patch is so massive the pressure would only be about 10 lbf/in^2 to 16 lbf/in^2. This is why tanks were made with treads, as soft terrain was a lot easier to pass, and this solved the glaring issue tanks had, if they sunk in soft terrain, they would always bottom out and not be able to get back out without the assistance of a different vehicle or a big scoop as part of the tread - aka a log that was tied to the trads in these situations - and this was due to the fact that that the bottoms of tanks where large and flat, meaning that they exerted a lot less pressure than even the tank's treads. This is why the solution with the wheel would not be the most practical. I understand that it is very hard to come up with a solution that takes everything that I've said into mind, but you guys's creativity has never failed to blow me away. The only solution I can think about is to try to make the whole big tread made up of small tracks that are perpendicular to the direction that the big track is pointed in. This way you could have tank steering when two of the sections are on the ground at the same time. Another Idea could be just to simply weld two of these things together, creating two huge tracks side by side. Thank you for coming to my TED talk.

Can you create the Leonardo Da Vinci fighting vehicle in either this or trailmakers? It’s kind of like a circular, 360* tank with guns all around it. It’d be kind of cool.

you can improve the steering and the derailment issue by adding a pipe to your wheels and make a sideways-one-block high rail on each track segment since the bounces only occur on the middle. this also gives th option to steer at almost any point

You can improve the steering by replacing the buttons with sensors triggered by an arm on a bearing controlled by the driver seat steering (A&D)

The fact that the tank actually *”might have”* inspired the british to make this kind of tank but with guns and armor and *slightly* faster

You should make a giant tank using those tracks and the cart for propulsion. Or add a gun. It looks cool already and these videos are always really cool to watch!

The Thing is actually good now. I'm impressed. Amazing video

2 things that might be fun to see how they work: 1. add or remove a segment or two from the track. 2. Build a second one beside the first and link the drive unit in the center, see if you can skid steer with it.

The base of the 'track' in contact with the ground is stationary (or it would be slipping) so top is moving at double the ground speed. I'm amazed you got it to work at all.

He has done it, THE CRAZY MAN HAS DONE IT

And i like that he uploads every day

I'd really like to see a return to the 'flip walker' using this jack-based turning. Hypothetically, you could attach a similar pivoting jack to the 'gondola' to allow it to steer as well. An alternate solution is using a set of lifting thrusters to get it into a 'hovering' state, then pivot it in midair.

hi scrapman, i'm french, it pronons [ bwaro machine ]. add suspensions to all weels should solve some issue maybe. Instead of making little hooks, you can make a long bar so you can hook up everywhere. Don't know if it's understandable ... Great job, keep going bro !

Dude, there's sooo many old crazy machines you could try to replicate. You should keep doing this and make it into it's own series. Combining history and building games is an excellent idea

Glad you returned to this one. I felt like you left a lot of opportunities for improvement the first time. This time you addressed everything I thought of and then some. My suggestion for a vehicle would be to see if you can do a car in a ball like a hamster ball then see how much terrain it can handle. Bonus points if it can float and go across water with at least some amount of control

I think that making the wheel base closer to the length of a track segment would make the vehicle more stable in the track, and less likely to tip backwards. Larger wheels might help with the machines interaction with the leading track joint allowing it to start pushing on and putting weight onto the next track before the axle crosses the joint.

Probably reduce your detracking problem, move your turning dogs to under the on the track, and add the inside/outside wheels at the bottom, maybe add those suspension components to help stay in contact on rough terrain and add weight in for traction, or put a set of wheels in on their side trapped in a track to hold it in

Looks like some guide wheels that fold out in front of and behind the bottom and top wheels could help with the de-railing. You'd just need to put them on suspension. Because you don't just need to deal with the situation where the track forms a rectangle, but also the transitions between those states where it forms a flattened hexagon.

1.Idea:no more Derailing by putting the sides and lock for the turns up by one or two blocks. 2.Idea:making turning faster. 3.Idea if the incline is to high and the top wheel doesnt Touch the top, put the Piston on another button or more to finetune the lenght. 4.Idea put high friction blocks on the bottom of the tracks kinda like table legs

Add another bar above the wheels that is low enough to prevent derailment, but high enough to not make contact when driving. When lifting the thing, the wheels will make contact and lift the tracks. Add a piston to the center of the vehicle instead and lift the entire thing. Then rotate the piston. A bit more unstable steering probably, but not unsolvable.

You should make three wheel controls. one for the top wheel to move by itself to help with the catching up issue. one for the bottom wheels for the same reason and the last one is for all the wheels to move at the same time.

This is a great series so far, i think you should keep doing similar failed/ awkward historical machines and transport

Super cool. You should try making the Mephisto tank, a very rare tank, now sits in queens-land museum. anyway keep up the great content

I think the top could be improved massively by adding a wheel on top of the tracks that pinches down onto the current top wheel. In theory, if it was big enough to not fall in between track pieces, then it could completely solve the cycle skipping issues. And for the bottom, one idea would be to make the retaining wall 1 block higher except near the turn hooks. Or maybe making the wheels 2 wide so they have a harder time slipping out? Either way, I love watching the prices of this thing being designed and refined. Good job mate!

You should try to increase amount of axes for the bottom part, and if you can solve the problem of bottoming out on 3 or more, you should get improvement in derailing problem, also, you can rise walls on tracks, to intercept derailing even more.

First: the top wheels dont need to fit in the track. You could have arms that go out at the top then up then in then down so you have wheels on the bottom and top of the top section of track that would give better contact and might help prevent some derailment and maintain traction. Second: the outside of the track loop does not need to be flat, you could add texture to give better traction and stop slippage on hills. in scrap mechanics that will probably mean cacti.

I do appreciate the attention to detail here.

To increase traction maybe add the highest friction in a strip under the wheels all the way around And maybe add suspension on the bottom wheels

The next tank you should make is the Tsar Tank. I’m loving this crazy tank series.

you can seperate the two sides of the "track" from each other and have seperate control with two buttons on the wheels from each side of the center car then it will have tank steering

I love these old designs. reminds me alot of cultivator no. 6 from early ww2.

have to mention i learned to glitchweld things together few weeks ago and it gives huge amount of more possibilities. Maybe do episode about glitchwelding and things ? :D

If you over and up and add a wheel to the top and and add side wheels on the bottom you can potentially fix the derailing. Also if you deactivate the bottom wheel you can move the top forward when you get stuck on steep inclines

@Scrapman may add a upper guid rail to lower the possible positions at which the cart can derail. sure there will be a gap when the track lays flat but better then none.

To prevent it from bottoming out, add wheels with power to them at the place where it gets hung up. To make it able to turn, build another one and attach them in the middle. And to stop it from being de railed increase the size of the lip that’s keeping the wheels on track.

This fixed vehicle brings me so much happiness.

For Multiplayer Monday, you should do a fighter jet evolution and who takes out the cargo plane will get a point. First one to get 5 points win. Also moonbo if its fine with them will fly the cargo plane. All the evolution rules apply (2 power core incease and power cores will continue to increase until the score is 5 for somebody and they win)

Kind of useless as a vehicle of war, but I could see it used as an overly engineered, mars roving crop planter. Imagine that each of the track pieces were solid and spiked like a cleated shoe, and each of the spikes are narrow yet hollow like a traffic cone or needle and the core driving vehicle drops seeds through an auger on it underside as it drives. To compensate for the solid tracks however, you'd need switch the steering mechanism out with two wheels that extend out and lower from the sides of the core vehicle instead of in front of it, and the wheels would need to turn in opposite directions like an RC car can to turn in place. It'd also have to be a drone or remote controlled... because you wouldn't be able to see where the hell you're going either... but personally, I wouldn't want to be inside that thing as it operates anyway.

Instead of the hooks you should've put railings there, which would eliminate 3 issues at once. 1. Turning is only available in given places 2. Having to move the hooks in and out from under the vehicle 3. Derailing

I've been meaning to tell you this sense the video you built this and this idea suddenly came in my head to solve the turning problem. What if you made a built in turntable (or a platform that you can lower from the bottom of a tank) If you want, you can build a separate with this design and the tank can be any shape you like.

Maybe you could try out running over land mines (or explosives in general) with this? It seems like that may have been an original goal of the design: to clear an unsafe path for vehicles and foot soldiers to go through.

I think another cool thing to make would be a horizontal helicopter, i dont think it was ever actually built and it might be really hard or maybe even impossible but i think you can do it since you managed to make the monospinner!

I love that he does this

Using big wheels instead of small wheels and adding two of them with a small pipe piece in between them so it doesn't derail along with rails that are one block taller, while removing the wedge peices for the turning mechanism, and use a cog like set of small pipes with cacti on the ends to turn instead of a wheel.

what if you had 2 and stuck them together so you can have tank steering

At 18:36 you said that you did not know a solution to fix the uphill climb, I have an idea to propose. Maybe have a frame that folds up to the backside with a couple sets of tires (maybe folding inwards when not in operation for clearance) with semi-stiff suspension on the tires so that you can increase the length of the vehicle momentarily and lift the mid section (the current rear) to increase the probability of it succeeding the climb? If you do try this be sure not to make the extension too long or it may bind/prevent the track and be unfunctional.

If you remove the beams in between the two sides and use better track guidance (like you did in your first video of this design), adapt the propelling of the wheels at the sides, (make it independent) you might revert this machine to proper tank steering? I like the idea of improving this machine as it is actually showing the evolution of tank treads very nicely. A bit like your evolution challenges IRL :) It seems that the development of rudimentary track designs was made during WW1 and perfected after that, also for agricultural and ground moving vehicles.

The problem seemed to be torque from the top wheels. In the previous episode they were faster than the bottom, but with the suspension added, the top is being moved faster and the back end is being lifted due to that.

I think the Kugelpanzer from early 20th century Germany would be pretty interesting to recreate. It's basically a monowheel tank and was designed to cross the no man's lands of WWI.

Idea for another interesting follow-up to this: building your version of the M60 AVLB which was the basis for the GI Joe Bridge Layer vehicle...

how about instead of suspension you can put grip (as in stripy layers of blocks )and place it at the bottom of the tracks and it will also weigh it down on to the wheel

Imagine him making the British Mark 1 WW1 Tank Since the Boialer Has A Little bit shaped like it but the Mark 1 British Tank just has A conveyor like wheels

Idea for multiplayer monday: try and optimize this creation as much as possible then put them through multiple tasks like racing, driving across trenches, and stress testing by turning all the engines up and going across as difficult terrain as possible.

That was really fun to watch and I think it contributes to our understanding of history. I guess the logical question is could they have added a gun similar to a tank? I have a feeling that the tank was the most efficient design and despite optimisation of this design, it just wasn't going to tackle the jobs they needed without rather large design changes.

ScrapMan: Claims he is not an engineer. And then comes up with an elegant and simple solution every engineer would be proud to create!

Make the top engine be able to move the top end of the tracks independently of the bottom engine that drives the vehicle. If the tracks lock You up, separately advance the tracks on top of the vehicle but having the vehicle remain in place.

I say we not only have The Wheels on the inside of the track having little slots for them like they are now but say placing a block and then adding another wheel on the outside of that block so the derailing wouldn't really happen because preventing side-to-side motion and also I say increase the tire size so you have more contact with the wheels and going over the gaps between the tracks themselves would be a lot easier transition between each track possibly even adding suspension if you're worried about friction problems probably add some high-friction block on the outside

2 big tires at 45º at the sides, perhaps... (to not fall to the sides) something over the tracks (like a secundary track) to prevent the tires to falling of the track.

A big glaring issue I find with this is the idea with a tank like object is to not have wheels in contact with the ground because the wheels aren't strong enough to go over certain train namely things that can pop the wheels so you could do this but you're going to have to probably change that turning wheel a lot

Wow! Heck of a job improving the function of this bonkers design! lol! One improvement I suggest, is instead of having the one location where you can set your hooks to lift the track for steering, use pipe pieces and run it as far along each rail as you can. This will give you a few more different options for steering locations, and as a side bonus, it should almost completely fix your derailment issues.

Verry fun, I suspect you would only be able to turn an IRL version when it's in the transitory state of 1 track on the ground.

How about a Kugelpanzer? it may be tough cause of the angles but i think you can do it!!

you could try to make its wheels locked into the track by putting guards on top to prevent them from slipping out, possibly with some sort of suspension to grip it on both the top and bottom and turn the correct way on both sides. Also if it's meant to be an engine of war it would probably need to be armored to protect the driver. Also it's _really_ unstable because of how tall it is vs its... wheel...track...base. Overall it is interesting as a historical curiosity and an early iteration on what would eventually become the tank tread, but it's pretty clear why the modern design is superior.

Crazy idea, but why not suspension for the bottom wheels? And to solve the top derailing why not add a wheel that goes out to the sides, then up, in, and finally back down onto the top. Granted then you would also need to add tracks to the outside of the sections. But that would also solve the issue with sections coming up at the wrong point. Anyway, good video. looking forward to how you solve this.

you should make episodes called "Fixing Failure" where you find creations on the workshop and fix/make them better

Suggestion: You should try building the Hafner Rotabuggy. Either in scrap mechanic or trailmakers I think it would be fun to try. It’s a half helicopter half buggy vehicle from 1944.

Multi-player Monday where u have to build a machine like this to race

just needs a little more weight lower down. A few more blocks behind the drivers set will help prevent derailing. Then it may be time to make this thing battle ready. Weapon mounts on the sides perhaps?

You should try and build Marquis' Multiplane in trailmakers.

You should definitely put a bunch of small wheels hardbound to the track all along it for better grip on the terrain

I did some math and its complicated to explain in a comment, but make the minimum angle between two tracks should be exactly 60°(or else a bit less, if exactly 60° is impossible with the buildgrid and stuff), this is the largest angle possible without the top lifting up. This wil not prevent the top from lifting up, but it causes the top not being forced to lift up while still supporting the sides of the top most track to prevent it from going at an angle and sliding off the top wheel. Btw I'll try to explain the maths in the comment of this comment

The only other improvement I would make is if its possible, put the top wheels on a logic gate with a switch so you can separately control them, and if that's not possible put a double bearing on the wheels so you can have separate control with a bearing

18:15 (with pistons) raise the tip of your vehicle and thus shift the weight forward so that the construction gives way.

You should do the British version of this, would be simpler, it was basically a wheel with rockets attached, its job was to barrel through barbed wire to allow infantry to go through, the downside was that it was a circle, on rough terrain, and it was supposed to go straight. On rough terrain. Yeah now you can see why that was a problem, and it was also very skinny

This kind of design did actually go on to be something. There's a drive called the Rotaped that some tractors used. Essentially the same concept but with some modifications to make the top and bottom links interface with a singular sprocket, a pulley system connecting every other link to keep things constrained, a system that keeps the top and bottom parallel at all times. I'm not sure if this system ran into any flaws, it seems to be fairly rare, but there's no way the Rotaped isn't an evolution of the Boirault.

I was watching and thinking having separate controls for the top wheel to fine tune track lay out on complex terrain would be an improvement, and for whatever reason it seemed like a rotating tri-wheel (like the "stair climber dolly/cart")at the top could be a good choice for power and traction. Also adding some spikes to the track panels could help with traction while climbing hills. Then again I've never played this game, but I've always loved day dreaming wacky inventions.

It would be cool to see one with weaponry attached. How would it work out? Probably on the side. And maybe even a multiple battle or race over odd terrain.

Could u make distance between top wheels wider and double them up like on a roller coaster, so they hug the outside track on both top and bottom. Maybe it would keep it from getting off track and keep wheels in contact with track.

Try to build an Antonov A-40 Krylya Tanka. It was a flying tank idea that failed, but you could totally make it work.

You could put cactus on all of corners of the treads to get some more grip and attempt to stop the slipping problems

I have never played Scrap Mechanic at all, but I really like your videos.

The friktion in the wheel made the back go up!

Ive got two train experiments Either the Rail zepplin (used propeler to move, only one built, was scrapped) Or Soviet Turbojet train (has two thrusters in its cab roof, one/two built, both scrapped)

How to fix the uphill issue: Replace the wood on the track with a block with more friction so the wheels can get more traction. Same with the bottom so the track doesn’t slip either, How to fix the derailing issue: Just make the sides of the rails higher, easy fix Then it should be able to go even faster and go over more extreme terrain. Also, you should make the holes in the track smaller because obstacles could fit through them and block the car’s path.

You might can Put Tank Steuerung in the boreali machine, If you Split it in half, and Put Tank Steuerung oh the vehicle INSIDE the track

I'd love to see you try to replicate the Citroën 2CV's suspension in Scrap Mechanic, I'd especially like to see if you can replicate the front-rear connection