T08A2 / R3000 spider lightweight tank (from GITS)

[Quaralane]

Nice work on fixing the issues.
Coming together for real now

 

[PauliusLiekis]

Thanks everyone!

Some photos from older printing:

"Find 10 differences!" or "My printer misunderstood what I actually want to print (correct piece is on the left side)":


"Tail":


The part is to big to make it as a single print - the max print dimensions 20x20x20cm. It was chopped into 6 individual pieces. The printer was misbehaving again a bit, so 2 out of 6 parts had to be corrected after printing:


Assembled:


I covered the bottom piece with too much acetone, which resulted in bends... I had to cut it, screw to the frame, glue together and use a lot of putty afterwards There is still small gap between the top and bottom, so I added a screw to tighten them together after closing. The top and bottom are not glued together, since main electronics sits there and I need to service it occasionally or attach screen and keyboard when coding for it.


Result:

 

[Boxster]

Whoa!!!

 

[PauliusLiekis]

I found out that the old RaspberryPi (model B) is getting in a way of cables after assembling all printed parts, so I replaced it by newer model A+. Everything fits much better now:


This is how it looked before the painting of details:

 

[Grendels]

Very nice!

 

[YOULI]

Outstanding !

 

[Quaralane]

Looking REALLY good here

 

[Dark Kyp]

Really impressiv job!

How is that 3D printer to use?

 

[PauliusLiekis]

Thanks!

How is that 3D printer to use?

It's ok. After using it for more than 6 months I tuned it enough to produce decent prints. I wish I knew what had to be fixed before I started printing so much It would have saved me a lot of time on postprocessing...

 

[PauliusLiekis]

I finally found time to fix electronics.

Main change: I switched to power source with higher voltage (from 5V to 7.5V) - this gives more strength to the legs. One of the main problems was that it was having hard time standing on the legs after putting so much plastic on it. The robot weights ~5kg now. New and shiny power source:

Of course RaspberryPi still needs 5V, so I had to put voltage stabiliser. That leads to some energy loses, but who cares when you're not planning to use batteries and you have 26A )

I also had to switch to shorter and thicker power cables for servos. And better plugs for those cables too. I'm glad I didn't have to pull any new cables through internals of the robot - it would be very hard to do at this point Although I still had to put a relay in the back and some thick cables. It doesn't look nice (when it's open), but it works!


I found out that servos in arms take 6V max, so I had to put another voltage stabiliser Any change is never as easy as it seems at first sight

 

[Mikey_W_1980]

Seriously outstanding work so far!!


Really impressed!

 

[PauliusLiekis]

3Dprint.com did a story about my robot, yay!

http://3dprint.com/54671/ghost-in-the-shell-robot-tank/

 

[Hagoth]

PauliusLiekis!

How did I miss this here! This is looking absolutly awesome! 8) 8) 8)

Congratulations on the story by 3D print.com! ;D

 

[Shark]

Impressive!

 

[PauliusLiekis]

Happy New Year everyone! I finally found time to get this project going again - there isn't better time than a night of New Year celebration I hope to get a better camera soon and make a final photoshoot....

Here are some older picture about what happens when your 3D printer messes up your print and shifts half of a piece. Anyway, there is no thing that saw, glue and putty can't fix )

 

[PauliusLiekis]

Painting the robot was a lot of fun. I've done these layers:

• Prime color
• Shadows / light surfaces
• Weathering details
• Chiping
• Rust
• Weathering sufraces
• Oil/dirt

I overdid the chipping, but that's what happens when you're doing it for the first time

 

[Dark Kyp]

this is looking great! 8)

 

[Hagoth]

Very nice weathering! That is looking awesome. Very cool. 8) 8)

 

[PauliusLiekis]

Thanks!!!

One of the goals of the project was to make the robot move in the nice, fluid way. A lot of work went into things that can not be shown by photos - coding and preparing the moves. To make it even more fun I had to redo some electronics - the robot stopped working after just sitting idle for half a year Anyway during the preparations I prepared a storyboards - my final animation was supposed to resemble the original movie:



I turned my flat into mini photo studio for a couple days



I'm not a photographer or filmaker - using a tripod is as far as that goes but I decided to try using a couple of spotlights and a smokemachine The smokemachine turned out to be harder than I thought. You basically have to know how to use it. Having a good camera dosn't gurantee making good photos - the same for a smoke machine. Anyway, I needed it for making photos of the lasers, so it wasn't completelly waster Oh, and I haven't reallized that smoke from smokemachine raises straight up. You need cold smoke in order for it to sit on the ground, so I had to improvise that. 5 liter bottle filled with ice cubes served as cooler for smoke:

 

[PauliusLiekis]

Results:
[youtube]https://www.youtube.com/watch?v=Bj2fL7GS1UM[/youtube]

More videos, photos and info:
http://gits-tank.com