LEGO Technic Turbo Polyp / Kraken

[Aventador2004]

Still love it! Great work!

[Techniccrack]

a little update

i build the polyp with the seats and crosses to show how it looks.

the head will be rebuild. it must be a little bigger.

the seats are not finished, but its purely for the shot of the whole machine

 

to be contiued

[Techniccrack]

a little update.

the crosses are rotating very wobbly (cause of the universal joints in the arms), iam rebuilding the arms. the arms will be 4 studs wide.

Head progress

it was to small in my opionion. So i have rebuild it.

its now 16 studs wide and iam busy buiulding the "octopus" on the head.

But... it will be no octopus.

I rename the machine in Turbo Spider.

Om top of the head will be a spider and also around the machine there will be a spider "layout" with webs and so on. on every seat there will be a mini spider.

here some photo of the progress of the head for now:

nice detail: the legs of the spider on top are glow in the dark...i thought it will be nice..

 

to be continued

[Techniccrack]

Here an update

i finished up the seats (except the lighting because that is for the finishing touch)

here 2 photos:

Drivetrain of the crosses

I had to rebuild the arms 

because of 5 universal joints the rotation was very bumpy (it appeared in fases of a quarter turn)

i rebuild it, arms are 1 stud wider, but the weight has stayed the same

How it was:

How it is now:

problem solved

Drivetrain of the lower cilinder

The lower cilinder makes it possible to adapt the rotationspeed of the crosses.

it was connected to 1 gear on the cilinder, but at a test spin it appeares to weak. it slipped a little

so i rebuild it.

now 4 gears drives the lower cilinder.

Better and no slip anymore

From below:

from in the cilinder: (axles will be changed but youll get the idea:

Liftcilnder upgrade

I upgraded the drivetrain of the lift cilinder also.

now i used a type 3 turntable and its driven by 4 gears around it.. no slip anymore

[/url]

a few numbers for now:

Total weight is 4400 grams

Total parts used: ±12000

to be continued

Edited February 24, 2018 by Techniccrack

[Carsten Svendsen]

I like the progress on this. It's very cool looking, and I can't wait to see the finished project.

[Techniccrack]

thnx

a little update again.

Arms

the arms are almost ready.

1 stud wider but no weight increasment

 

Cilinder drivetrain

the 4 gears are working perfectly together. no slip anymore and strong

 

Building the structure around the ride

i started to build the structure around the ride.

the support for the plates underneath is by 16 pieces of 46 long beams.

heres a photo of how the supportbeams will be connected to the underframe (an impression of how wide the total project is)

total 140 studs wide

 

to be continued

[BrickbyBrickTechnic]

This project is so amazing, one of the greatest I have ever seen! Can we have another video of the working soon? 

[Techniccrack]

33 minutes ago, BrickbyBrickTechnic said:

This project is so amazing, one of the greatest I have ever seen! Can we have another video of the working soon? 

this week (end of week, maybe earlier) i will make the testvideo stage 3. all systems together, spinning crosses with seats and everything

Edited February 27, 2018 by Techniccrack

[Techniccrack]

A short spin test with 1 arm.

The rotation of the cross (with seats) is powered by the lower rotating cilinder.

a simple test, but effective. 21 gears are needed to rotate 1 cross.

heres the video:

 

More to come!

[Techniccrack]

Update, test video stage 3. cross spin test due to lower cilinder and rotation of the machine itself:

 

Edited March 4, 2018 by Techniccrack

[wimpie3]

I have the impression the seats and the rotating crosses are too small in relation to the entire machine. It seems the scale is not entirely correct?

[BrickbyBrickTechnic]

2 hours ago, wimpie3 said:

I have the impression the seats and the rotating crosses are too small in relation to the entire machine. It seems the scale is not entirely correct?

After reading this comment I noticed so too... Might want to make them bigger. But awesome job so far!

[Techniccrack]

You guys are right about the scale. seats wil be adjusted and will be a little bigger.

But first i will make everything work properly.

after that i will check the scale and everything

[schraubedrin]

On 24.2.2018 at 12:37 PM, Techniccrack said:

because of 5 universal joints the rotation was very bumpy

Did you orient the joints correctly? This influences the smooth motion quite a lot:

 

[Techniccrack]

31 minutes ago, schraubedrin said:

Did you orient the joints correctly? This influences the smooth motion quite a lot:

 

Dude. I want to thank you.

I serious never was aware of that :)

Nevertheless the arms contains 3 u joints now instead of 6 btw(!), the allignment wasnt right.

I fixed it and the rotation is now good

[schraubedrin]

20 hours ago, Techniccrack said:

I fixed it and the rotation is now good

This is great to hear.

I'm glad i could help to improve this incredible MOC

[Ankoku]

Yeah, I didn't know about the universal joint alignment either. @Ludo Visser posted it in the Akiyuki Project thread, which was really helpful.

This project is amazing, I can't wait to see the final running version! Thanks for all the updates, it is fascinating!

[Techniccrack]

Update:

seats adjustments

i made a new design for the seats.

I looked at the scale and indeed...the seats are to small:)

so i adjusted a little.

back of seats are longer now. a bow around the seats and the cilinders on the back bigger.

the scale is now right.. i didnt want to get rid of the blue technic seats, so i did it this way

only building it will be next week i guess. i ordered the necessary parts already:)

hers is new design:

 

to be continued

Edited March 6, 2018 by Techniccrack

[Techniccrack]

New (bigger) seats

Like i promised...i changed the seats. i made them like the design in ldd.

ordered the parts and voila:

 

left the old, right the new one:

to be continued

Edited March 10, 2018 by Techniccrack

[Aventador2004]

I'm loving this progress, can't wait to see it finished!

[Techniccrack]

Explanation lift system

I litle information

i received a few requests to explain how the liftsystem works.

So here is a scematic of it.

I undressed the system a little to be more clear 

i used a wormgear to prevent slipping and to get a low strong ratio

the wormgear drives 2 gear racks that pushed a beam up that is connected to the liftrack.

btw: NOT on the scematic is that i used 2 wormgears and 2 hard springs under the liftrack for extra sup[port. but maybe the sceme is not so clear to understand

the liftcapacity of the system in the polyp is 3,4 kilograms. 

gauranteed no slip of gears (or the gears must brake)

The building around the liftsystem has to be very strong also.

 

to be continued

[Techniccrack]

I made a total shot of the machine (without the underframe)

just to see if the scale of the seats compared to the rest is right.

the arms are a little to wide (compared to the real thing)  but with the supports and drivetrain in the arms its unavoidable.

The scale of the whole picture is perfect

so thnx for the suggestion for making the seats bigger :)

Edited March 14, 2018 by Techniccrack

[Frequenzberater]

Awesome!

[wimpie3]

Looking good! Much better with the large seats. However, still some problems with the scale. The entire middle structure is too big compared to the orginal, but I'm sure nothing can be done about that. The curvature of the arms is also incorrect, but that's how the Lego beams are so nothing can be done about that either. Nice job.

[Techniccrack]

Wimpie3:

Ive got some info about the real life Turbo Polyp:

A little scale comparison:

The Lego polyp is build in a scale of 1:17,2

 

In real life the Polyp measures: 1940 cm

So the Lego polyp should be Lego 112 cm

Its 110 cm. So..ok

 

Center unit measures on the real model: 248 cm

So the Lego version should be 14,4 cm (18 studs)

Its 16,8 cm (21 studs). its only 3 studs too wide 

But i cant decrease the diameter because of the liftsystem)

 

Seats

Real: 140 cm

Lego should be : 8,1 cm (±10 studs)

Its 10 studs. so ok

 

Head:

Real life: ± 200 cm

Lego should be : 11,6 cm (±14,5 studs)

Its 12,8 cm (16 studs). only 1,5 studs too wide

 

But i can adjust this one, i shall look at it

So the scale is a littlebit off. but i can live with that.

the whole machine looks great in my opinion

 

QUOTE:

"The curvature of the arms is also incorrect"

Here is a comparison photo of the real deal and the Lego version:

Take a look at the curvature of the arms: its correct (the arms are a little to wide but like i said earlier, that is unavoidable)

(dont start about the fact that the real polyp has only 5 arms,

I am building an model that features different details of different types of polyps)