ponedeljek, 18. julij 2016

Buwizz beta testing



In the course of the last few weeks I had an opportunity to test the newly developed Lego power functions battery and control application, called the BuWizz. For the first stess test I built a massive rock crawler which uses four power puller wheels, four RC motors and the newly developed double torque tube suspension. To help with steering the crawler used two servo motors.

Here you can see the first driving test with BuWizz in normal mode at 1:5 gear ratio:

Few days later we tried a different control mode, called the ludicrus mode, which increases the power supplied to the motors beyond of what a normal Lego battery box can ever do. For that I increased the offroader's final gear ratio to just 3:5. As you can see in the video below the speed boost is quite impressive.

Finally I decided to build a speed - only dedicated model which uses realistic caster angle for directional stability, racing hard suspension, tumbler wheels for maximum traction and a light, yet strong chassis. That model, even though powered by only 2 RC motors reached speed of 25 km/h, as you can see here:


Having experienced the potential BuWizz has in store for increased performance and control, I can only suggest you guys try to make this concept into reality. Thanks to BuWizz team for allowing me to beta test this product and I hoope it does come true.

Support this awesome product here:

https://www.kickstarter.com/projects/973645257/buwizz-remote-control-for-lego-models
 

ponedeljek, 06. junij 2016

Recap of International trucktrial - Budapest 2016

I pick up my massive hockey bag and drag it on the train. The conductor gives me a weird look. The bag is massive and inside there are two models, the Oshkosh 10x10 PLS and the Ginaf 4x4.
This is the start of my journey to Budapest to the international trialtruck competition.
Dragging my bag across the train I find myself sharing the small cabin with two more people and a parrot in a carrier.
The fellow's name slipped my mind, but he kept calling his owner which he couldnt see... It was rather cute.

Few hours later I was left alone, so I took the time to fix the models which have taken quite a beating on the way... The best thing was fixing the dual X-24 engines on the oshkosh. Since you have to ALIGN ALL CLYINDERS AT ONCE for BOTH ENGINES this felt like doing a brain surgery on a moving train.



After that pleasent rebuild I was nearing the capital of Hungary, Budapest. There Nandi was already waiting for me to do some heavy lifting help me carry the bag and drive me to the hostel. I reserved the hostel few weeks before and this is what I've walked into. Needless to say I felt right at home.


After much needed sleep it was time to explore the city a bit before going to the competition location. I found a near-by Lego store and bought myself some rare bricks in all kinds of unusual colors. Can you say teal, lime and violet studless bricks? In all the excitment I bought two left large panels... But at least I got a flick missile thingy :)


Following that over-exciting purchase Nandi picked me up and we left the city and went to the surrounding hills. The site of the massive green hillside, paragliders and the heavenly clouds left me picking up my jaw. After everyone gathered we took the road to the abandoned sports airfield where we set up the various stages of pain and suffering for our trucks.


If a picture is worth a thousand words, than I'm going to up that with videos showing the highlights of the group ABS plastic torture international trucktrial competition.




As you can imagine we had an awesome time. Like I said on Eurobricks, these kind of competitions bring out the best from people...and the worst out of the trucks :)


I would here-by like to thank everyone for a great weekend. I met a lot of really friendly and nice people, had fun exploring the beautiful Budapest and learned a lot in ways to improve my trial trucks.


See you guys again soon.

ponedeljek, 02. maj 2016

Hungarian truck trial event next weekend

So as you guys might have seen on my youtube and eurobricks I will be joining the Hungarian truck trial race next weekend.

Here are the trucks I will be taking with me, the Oshkosh 10x10 and the new 4x4 truck which I havent named yet.


Here's a picture of the racing location, right next to Budapest.


I managed to reserve a cheap hostel and I will use the spare time to explore the Hungarian capital a bit.

Of course I plan to do a video report of my adventure which will be posted to youtube.
Wish me best of luck :)

Meanwhile, do you have any ideas for the second truck's name? If so post them in the comments.

ponedeljek, 04. april 2016

LDD Instructions pack update 1



Here is the first FREE update to my LDD instructions pack.

All you have to do to get it is to download the updated .zip and use the same password you received from me.

Download the LDD package here


Updates and additions in short:
- Now that the real Oshkosh 10x10 has been built, I updated the LDD pack to match the model.
- Added a few new suspension ideas, such as MacPherson strut and double ball-joint suspension.
- Added a random color generator file - check the attached graphics settings image
- Updated several older models such as Blue 4x4 and Coyote with the newly added parts
- Misc. changes and smaller fixes.

You can expect more free updates in the future, since I still have many unpublished ideas and evil Lego gadgets which I plan to use to take over the world...

četrtek, 24. marec 2016

Finished Oshkosh 10x10 PLS

After over a year of tweaking the digital version and gathering all the needed the parts the time has come...

First a short list of functions:
6L motors for driving - 3x for left and 3x for right driveline
3M motors - 1x for the gearbox and 2x for autopumps
2 Independent dual gear transmissions - Each for one drive side
2 Steering Servo motors - 1x for front 4 wheels and 1x for rear 4 wheels
10x10x8 Wheel drive with portal hubs - All wheels are driven and the 1st , 2nd, 4th and 5th axles steer
3 steering modes - Normal opposite wheel steering , Front only wheel steering and Crab steering
Very long travel torque sensitive double wishbone portal independent suspension on all 10 wheels - Total suspension travel is over 5 studs on all wheels
Double segment working hook arm with a total of 8 pneumatic cylinders - Is able to hook up and load a 0,4 kg heavy pallete
Two newly designed autopumps to power the arm - Each powered by a single M motor
Two X24 piston engines - Each connected to its own driveline side
Detailed interrior with 3 seats and steering wheel - over 20 studs wide this is one my largest cabins ever built

I got the idea for the model while playing with new suspension systems. I managed to build a very compact and robust long travel independent suspension. This suspension also allowed me to build H driveline in which left and right wheel drive are seperated and in my case can be independently driven. This kind of setup has many advanatges, mainly removing the need for differentials when offroading, allowing small speed differences between sides when cornering and improved maneuverability due to independent drive (the truck can even skid, but its not recommended on grippy services).
After searching online a bit I decided to try to make a 10x10 model of a real truck, the Oshkosh 10x10 PLS:

 This was my original reference


Because I wanted this truck to have some speed I decided to use L motors instead of the usual XL motors. But because this machine is also meant for offroading I incorporated a double speed gearbox for each before mentioned drive side. Because I wanted to have more than just a rolling chassis I incorporated a functioning arm hook which can remotely hook up and load the massive palletes. I had lots of room to spare above the front wheels so I filled the space with two X 24 piston engines. For the final touches the cabin was detailed with three seats and opening doors, and the engine was finished up with a massive exhaust and cooling systems.

The finished model is over 85cm long and weighs 5 kilograms

Notice the 8 wheel steering. The front ladders/steps are flexible

Thanks to the high travel of the suspension there is plenty of ground clearance

 The under shot showing the two independet left and right wheel drives

 Another view of the rear steering and the loading arm

 Here you can see the two dual speed gearboxes. 
No broken gears, but switching gears under high load may damage the clutches
 
 Outdoor photo showing off the truck giving the Coyote a piggyback ride

Front view of the truck offroading

Here you can see how the suspension adjusts to the terrain

 Even when unloaded the suspension still does its job

I also put a lot of time and effort in the following video showing off the finished model in all its glory both indoor and getting dirty outdoor:



As usual with my models I am also relasing the digital version which is available in my LDD package
 The LDD file for the final version can be downloaded along with my LDD package

I would here bye also like to thank everyone who helped me realising this model with your support and donations. A BIG THANKS TO YOU:)

 

sobota, 19. marec 2016

Oshkosh 10x10 PLS video coming soon....

I am now in the process of video shooting this massive model.

Got myself some fancy LED lights and greenscreen fabrics, they work awesome, here's a small preview:

Expect the finished video in a few days :)

četrtek, 17. marec 2016

Double torque tube live axle idea

 I got this idea yesterday and decided to build it.

Its an improvmement of a classical torque tube suspension, but now it uses 2 torque tubes to form two half axles which are connected to each other via a turntable:


To keep the half-axles from bending away there's a lower linkage made out of 5L suspension arms and some beams:




So what's the difference btween this and classical single torque tube?

Lets start with advantages:
- No need for links or panhrads to keep the axle in place
- Now each axle can have an independent drive, therebye elimenating torque flex
- Or you can use one ball joint for drive an dother for steering
- Can carry much more torque

And there are also some disadvantages:
- Less flexible, maximum angle this setup can bend to is some 30 degrees
- Steering is a bit more complicated, since the axles pivot in the center, you need some ball joints and links
- Takes more space

But you can even expand the concept to use three torque tubes.
Now the side ones can carry power while the center one supports the steering system:

I plan to try to use this new idea in future models, since it allows me to make a vehicle with independent left - right wheel drive with zero suspesnsion torque flex.

petek, 11. marec 2016

Livestream reminder

This is just a friendly reminder about tomorrow's livestream.


Also I took some time and imporovised and made my own csutom shelves s I have room to place all the sorting trays:

 Top shelf is where I keep most of my beams, axles and pins:

Lower shelf holds panels gears, connectors and suspension elements:

And the low box on wheels is filled with yet unsorted parts and bigger stuff:
 

To keep the shelf from accidentaly toppling over I used some old beams to wedge it agaisnt the wall:

It may not be too pretty, but it works :)

See you guys on my outube channel tomorrow between 10:00 - 14:00 and 16:00 - 20:00 (GMT+1)

četrtek, 10. marec 2016

Lego double beam suspension



After watching some youtube videos I noticed some trucks had some weird suspension on them...
It looked something like this:



So naturally I started investigating and found that this is a type of setup called a twin beam suspension.

So I tried to replicate one in Lego. To explain the concept behind this hybrid, here's a series of stages leading from live axle suspension to the double beam setup:

In order:
Yellow setup is a live axle
Red setup represent the change from dependent suspesnion to independent suspension
By extending the half axle lengths (blue) we get a lower change in wheel angle relative to the drive surface (camber)
And finally by extending the swing arms PASS the center point we get a double beam suspension


And here's a version with drive and steering:


So what are the advantages compared to the live axle?
- Its independent, which as name suggest aloows the wheel to work independent from each other
- Lower unsprung weight
- Less moving parts - to keep a live axle in place you need several linkages. Here the axle pivots around one central point

And disadvantages?
- Complex design, the axles have to be made to travel pass each other without interfering.
- A need for a CV joint which needs to allow the axle to slide in and out
- Not as robust
- Hard to implement portal gears without making the wheels slide sideways excessively
- Camber changes are still present

I also made a video explanation of the principe. You can skip to 4:30 to see the final version in action:


 

So the final question. Is it useful? Fo me as far as the Lego version goes....no. The disadvantages outweigh any possible advantages. Also lately I have been working a lot on long travel double wishbone suspension which outperform any other previous suspension system in almost all categories.

The only usefulness in this design I see is realism, if you are building a replica of a truck that has such suspnesion.

Because I want to hear your opinion, here's the LDD link to the suspension, so you can try to make your version and improve upon my prototype:
Download prototype here

sobota, 05. marec 2016

Oskosh 10x10 livestream announcement

After gathering the parts and refining the design for over a year the time has come...

...for my first ever real life MOC building livestream!

The livestream will be active in a week's time, exact starting time will be at 10:00 GMT+1 and it is going to be split in two four hour streams with a two hour break between them.

More info in the video:


Of course I will also try to do my best to answer any possible questions when I will be able to.
See you in a week :)

torek, 01. marec 2016

Work In Progress Sherp 4x4

So I was skyping with a good firend of mine, Braker23 and he gave me an idea to build the famous russian vehicle sherp.

So you might be asking, whats a sherp?
Well if a picture is worth a  1000 words I guess a video is worth a million.

So as you can see the sherp is a skid-steering 4x4 all terrain amphibious vehicle. Wow, that was a mouth-full :)

So after playing a bit in Lego Digitial Designer I came up with a simple prototype built around the small boat hull and for the wheels I choose a combiantion of tumbler wheels and inverted track elements.

So after tweaking a bit, here's the real version FLOATING in water (insert a F*** Yeah comment in here)


 More detailed view of the now hopefully-soon-to-be-dry version here:






And here's the money shot of the model's belly showing the reinfrocments used to keep from full from sliding out and wheels from spreading apart:





Where do we go from here?

Well I have to fix the issues of 36 tooth gears slipping at high torque, I need 4 more tracks (anyone got a spare to borrow?) and I need to make it pretty... But not to pretty, since it cannot support too much weight on water, so it has to be pretty like a model. Handsome and light.

In other news I ordered all the parts needed to finish the Silverfox and make the oshkosh 10x10, so keep checking my blog and youtube for updates.

nedelja, 07. februar 2016

Lego plan for 1H 2016

Here's my first ever plan on what I will build in the first half of the year 2016. The order of the models may vary, depending on my situation, but I generally want to make the next models and tutorials.


1. Silverfox



Its about time to make another walking animal, the last one was motorized wolf from 2011. The building process has already started and you can expect more updates on this model very soon. The model will be another step forward in my animals with more optimised structure, functions and realism. An example given is the use of ball joints for the hips, and linear actuators for muscles analougous to what animals have.

2. Arocs 10x10


With Lego's relase of the 42043 Mercedes Arocs I was inspired to make a fully driven and motorized version. This is not a simple mod, but a complete new model, the only similarity is the cabin. The original hard suspension is replaced with soft interdependent axle system which gives the model extreme suspension articulation. For extra maneuverabilty and traction there is also a 5th steered axle added in the rear.

This model is due to relase as soon as I manage to get the donour 42043 Lego Mercedes set.

3. Dominator TRS hypercar

Sample picture, real model will probably be different

With the upcomming relase of the new Lego porsche I was inspired to create a new supercar with advanced functions as multilink suspension, flappy paddle gearbox, remote control system, and many other secret functions. I belive this will be one of my most complex, advanced and detailed models so far.

4. All-round fastest Lego RC model


Lately I have been hearing you guys want less offroaders and more variety.
Well I hear you guys :)

What I have in plan is to create the fastest, most maneuverable and all round best pure Lego RC car I can make.

The whole process will be split into 6 video tutorials:

1. Testing, comparing and choosing wheels for best performance compromise between traction, rolling resistance and weight.

2. Choosing the motor and control system and comparing the different driveline systems such as front, rear, all wheel drive, differentials, and so on.

3. Creating and showcasing the different suspensions systems and explaining how the different factors such as caster, camber, accerman and multilink geometries affect the handling.

4. Resarching the best compromise for a bodywork which will have to be detailed, yet light as possible. I also plan to showcase the different ways you can build the body, ranging from full studded bodies to simple flex-tube shapes.

5. The final assembly. All the before explored modules will some together into a model which will be ready for the final and most entertaining, action packed finale.

6. Measure and test step is the final part where the finished car is put through its paces. I plan to measure acceleration, top speed, handling, and reliability of the finished prototype and iron out the bugs to fnish the project.

As you can see this video tutorial pack will basically be a learning tool for both me and the viewers into how to push Lego designs into new limits than ever before.


What do you think of my H1 2016 plan? Please leave a comment and thank you for reading!

sobota, 06. februar 2016

250+ Instructions pack and costum model support now available

250+ Instructions pack




In all my years of building Lego models and using the awesome Lego digital designer I made several hundred models some more and some less successfull. Some of these, like the oshkosh 10x10 have yet to be built in real life.

Because there are just so many ideas and models which I would really like to share with my fellow builders, I decided to make this Lego digital designer package and offer it for a really low price of 10€.

You may be wondering...but why not make it free?
- Well... Lots of my models already have a free LDD file you can download
- We are talking about 250 models here, imagine the amount of work and effort which went into this
- I am currently unemployed, so any kind of financial support means a lot to me.

THE PACKAGE WILL BE CONSTANTLY UPDATED WITH NEW MODELS AND FILES FOR FREE so you only need to buy it once

You can download the package here:

And to pay/contact me please mail me at: zerobricks@gmail.com


Custom model support

Recently I also had some experiences with making custom models, so why not offer these too?
Basically if you need help in designing a model, I can help you in all steps of the process. I am mostly experienced with technic, but I can of course also use any other types of Lego systems.
General price for costum model support is around 10 cents/part, but can vary depending on the size, complexity and time spent on it. First costumer gets 50% off. If you are interested please dont hesitate to contact me at zerobricks@gmail.com.

For more informations please check the video:








četrtek, 04. februar 2016