Zero's workshop

[Zerobricks]

Here's a little thing I've been working on in LDD, Arocs 10x10x6:

The cabin is stolen from the Arocs set, but the chassis is all my original design. The suspension is on the lowest point in the picture above, with extended springs the truck should be some 1,5 studs higher above ground.

Each axle is driven by an M motor on top. With the exception of the rear axle, all axles have shared suspension with 2 springs which allows for very responsive suspension system.

Front two and the rear-most axle steer, the orange beams transfer the steering power to the rear.

I would really like to build this model IRL, but I am short on 5L suspension arms, in this case model uses 24 of them!

I still have to install steering motor and a fake engine, but I think most of the work is done.

Edited October 10, 2015 by Zblj

[Zerobricks]

Here's picture of the axles only. You can see how the motor drive 3x 16Z gears with a final 1:3 gear ratio between an 8 and a 24 crown gear. If you look carefully you can see steering linkages between the first and second axle and on the fifth axle.

Edited October 10, 2015 by Zblj

[Edwin Korstanje]

That chassis looks great Zblj :thumbup:

[MaxSupercars]

Nice solution Zblj! Very good attempt to minimize gear losses via mounting the motors direct on axles...

Max...

[Imanol BB]

very nice work ZBLJ, now i know why you need that amount of 5l suspension arms, also, could you upload the LXF?

EDIT: i just became citizen.

Edited October 10, 2015 by ImanolBB

[GoldVillage]

Nice models! fell in love with that little backhoe ;) i fixed the gears, and the roof too... the L-shape beams wasnt a legal connection so i replaced it with a straight 5l beam.

http://www.brickshelf.com/gallery/goldvillage/Backhoe/minibackhoe_fixed.lxf

[2LegoOrNot2Lego...]

Great chassis indeed! Looks great and will work great as well probably

BTW those axles are based on the actual LEGO set? I did not build it, not do I have the Merc so that is why I ask... Will have a copy within a couple of weeks though!

Edited October 11, 2015 by 2LegoOrNot2Lego...

[Zerobricks]

They are inspired by Arocs's rear suspension, but gearing, steering, etc are all mine.

[2LegoOrNot2Lego...]

They are inspired by Arocs's rear suspension, but gearing, steering, etc are all mine.

I realized I should have done this prior to my comment: I checked the online instructions and yes you took it all to a much higher level!!! As we are familiar with when it comes to your creations!!!

Some question though:

1) The steering does have to travel a long way to get to the most rear axle. At this point I have no clue how you get this done...

2) Are 7L gear racks and new difs not available in LDD yet? Not to mention the hubs...

3) Do the dual tire rear axle bogies have a pivot point? The official LEGO set uses those rubber flex parts of which I am not certain it works proper!?

[Zerobricks]

I realized I should have done this prior to my comment: I checked the online instructions and yes you took it all to a much higher level!!! As we are familiar with when it comes to your creations!!!

Some question though:

1) The steering does have to travel a long way to get to the most rear axle. At this point I have no clue how you get this done...

2) Are 7L gear racks and new difs not available in LDD yet? Not to mention the hubs...

3) Do the dual tire rear axle bogies have a pivot point? The official LEGO set uses those rubber flex parts of which I am not certain it works proper!?

1. the steering to the rear axle is transmited via the long orange beam assembly, so there is no flexing.

2. 7L gear racks are available, but I used a different steering method, same one as in TC8 crane, it uses 6L links with a central steering pivot point between front and rear axle.

3. The rear axle should work without the second pivot point due to the slack of the frictionless pins.

[2LegoOrNot2Lego...]

1. the steering to the rear axle is transmited via the long orange beam assembly, so there is no flexing.

2. 7L gear racks are available, but I used a different steering method, same one as in TC8 crane, it uses 6L links with a central steering pivot point between front and rear axle.

3. The rear axle should work without the second pivot point due to the slack of the frictionless pins.

1) Clever!!!

2) Nice concept...curious how it works though!

3) I see, not my approach, but that should work...

[Zerobricks]

So, who can guess what this little contraption is?

[deehtha]

That looks like a differential that would be suitable in a tatra-style suspension

edit: Forgot to mention, it looks like a locking differential

Edited October 18, 2015 by deehtha

[SilenWin]

So, who can guess what this little contraption is?

Some Tatra-like transmission?

[2LegoOrNot2Lego...]

That looks like a differential that would be suitable in a tatra-style suspension

edit: Forgot to mention, it looks like a locking differential

Guess you could be right, both left and right side are able to pivot. First I though it to be a lockable length differential, but not close Could be but it needs to modified...

[Zerobricks]

That looks like a differential that would be suitable in a tatra-style suspension

edit: Forgot to mention, it looks like a locking differential

Some Tatra-like transmission?

Guess you could be right, both left and right side are able to pivot. First I though it to be a lockable length differential, but not close Could be but it needs to modified...

You're all right It was just a simple build to see if its possible. But because of the way the 24 tooth crown gear is attached that differential would be too weak and would slide apart.

[Richard Dower]

Okay, let start with a copy of all my models with LDD files:

http://i.imgur.com/0mKXcg1.gif

Sorry but you're just showing off IMO

Edited October 19, 2015 by Blakbird
: Please don't quote fifty images just to make a one line comment.

[MacKaiwer]

Hotrod:

LXF: http://www.brickshel...trod/hotrod.lxf

Oh my God this looks so awesome Twin V8 motors make it look so mean hotrod and I just love it Maybe I'll build it some day, it would be so nice, so nice display model and sure why not a model to play and have fun with

Edited October 19, 2015 by MacKaiwer

[Zerobricks]

Oh my God this looks so awesome Twin V8 motors make it look so mean hotrod and I just love it Maybe I'll build it some day, it would be so nice, so nice display model and sure why not a model to play and have fun with

Actually those are twin X-16 engines, 32 pistons all in all

Edited October 19, 2015 by Zblj

[MacKaiwer]

Actually those are twin X-16 engines, 32 pistons all in all

Silly me, of course they are, I was just blind Now that I get it, it looks yet so much cooler still

[Zerobricks]

Here's an old(ish) tutorial I kind of forgot about, but I think it might be useful for anyone who wants to make a small robust rock crawler.

[SimonSalomon]

HEEY :D Do you have the LDD file on the Arocs 10x10x6 you made? I am building a truck myself but i just can´t make the damn front drive and suspension with steering too.

[Rockbrick]

So, who can guess what this little contraption is?

very nicely done... should be possible with some 3d printed parts though

I came up with this for a longitudonal diff - you have to assume you can connect one wheel to the black axle and the other to the Grey one (i.e. the grey tube and gear is one piece)

Edited October 28, 2015 by Rockbrick

[Samer]

The 1st black car in post 1 is insane! You are also sharing your LDD files, kind of you.

[Zerobricks]

Here's something I came up in LDD and built from real bricks:

The main advantage of this diagonal gearbox is lower number of gears which means it is very efficient.

BUT the torque it can transfer is so far rather low because the assembly can slip apart.

Also mechanism to switch gears will have to be rather complex in order not to select two gears at once.

But the design is expendable up to 5 gears and may be useful for supercar-style cars.