CLASSIFIED
Project CODE NAME: "NorthStar"
From: State Department, National Security
To: Subject 13
Date: (Look at bottom right of Display)
If you can read this paper, this mean you have been choosen to take part on construction of the non plus
ultra of modern artillery, project code name "NorthStar": a tactical BallStyle mecha and multi purpoose
weapon.
This document in your possession is classified as Top Secret files. It is requested to do not disclose any
data of the project outside the work staff, any violation would be punished with death!
Here in this document is shown how to build the ultimate weapon.
Assembly Manual
It is a highly articulate model almost entirely made by 3D printed components you will mount piece by
piece.
I was able to print it with a cheap prusa i3 printer, so I'm sure you'll be able to print your Titan in about a
week with normal PLA. You can also print the titan by using a 3D print internet services like
shapeways.com or materialise.com or local 3D print services.
Premise
I can not guarantee about good final results of the Titan, final results may be different from pictures
because of updating new files and is up to you and your skills to build a good one.
Product Specification:
Height: <19 cm (normal standing)
Weight: +/- 80 grams
Total Print Time: +/- one week
To guarantee a full mobility the titan has a lot of parts. We divide them into three categories: Arm,
Chassis, Legs.
- Arm: For a single arm (green), which includes fingers, hand, forearm arm and various connection, needs
19 pieces, which you have to mirror on X axis on Cura slicer the file "DXHand" and print again to realize the
other arm, this option is possible from 3D print slicers, as Cura, and it is very easy to use, you find it
immediately on the left of Display on Cura.
- Chassis: (red) is composed by only 4 pieces, the Chassis, RocketLaunchers and a Vertebra that have to
bend and turn the titan to the right and left;
- Legs: From the pelvis down are included in the leg category (Yellow) the 13 final pieces. The pelvis and
the two "femurs" form a single piece to be printed but which is then "broken" after the print to allow the
external sphere of the femurs to rotate in the inner sphere of the pelvis, allowing the femurs to move
freely without detaching from the waist; Then we have the Foot, Knee and Shin, in one single file you
have to reprint the same to complete the other leg.
Brief Instructions
I strongly recommend to read all the rest of the manual (expecially the part of the hand), but here i tell
you in short what to do to have a titan.
You have Six ".Stl" files:
TT_AllLittleThings (print one time)
TT_Arm&Forearm (print two time)
TT_Chassis (print one time)
TT_DXHand (print two time, but in the second one you have to mirror it on X axis to make a left hand)
TT_FootKneeShin (print two time)
TT_HipBone (print one time)
Here how to mirror on X axis the DXHand: select mirror, on the left, and then just click on red indicator
First Part: Connecting the fingers to the hand
You can print all the pieces in the order you want. Here I'm explain to you how I did so i can share to you
my experience.
I started by printing the DXhand, 14 pieces in total for the first print, performed very slowly at
Speed: +/- 20/30 mm/s,
Infill:
+/- 20%
Support: enable
Fan: ON
Obviously it is up to you to imagine better settings and an ideal position in the printing plate.
The difficult part, however, is to assemble the fingers together, and then to the hand. Let's see now how
to assemble them, here is what you need:
•
Staples for the stapler
•
Small pincer
•
Clamp
•
Gummy glue gel (ATTENTION, this is a specific type of glue that becomes like rubber, that has the only
purpose of slowing movements and keep in position the moving parts)
•
Rasp or sand paper to levigate pieces (you probably need for all of the other pieces, to make join them
better)
- Fingers
Start by checking if there are holes where where to fit the staples, if the holes are obstructed by the
printing material so take a needle, heat the needle for a few seconds with a lighter, pass it through the
holes to unlock them. But very probably you don't need to do this operation.
Then if you have gummy glue gel, use it to connect and slow the corresponding components to each
other.
Take now a staple and insert it between the holes so as to connect the various parts of the finger
between them, cut the excess with a pincer, and tighten around the piece with a clamp, taking care not
to damage the pieces. Repeat until you have joined all the pieces.
In this picture is shown what i think is better to fit staples to finger parts
- Hand Connectors
To connect the hand to the forearm, just join the pieces as shown in the following image:
the hand should then rotate inside the housing thanks to this fitting, and bend inside it.
Obviously, due to the fragility of the components, please pay attention and drive the movements of the
hand and fingers from the source.
- Forearm and Arm
To connect the forearm to the arm you will need to insert little cylinders you will print in order to fit in
the holes. These Cylinders are in one single print file, i called "AllLittlePieces" wich include all of the other
little pieces.
I used to color the pieces to refer them like in the picture before:
Set the infill in the way you prefer, i recommend 10%; enable support, use Brim.
Now connect the arm and the forearm to each other and insert the cylinders into the holes. You may
need to levigate these before to fit properly.
- Shoulder
In the Shoulder has been designed a cardan joint (gimbal) to move the arm in all direction as a real arm
would do, through the rotation of three components among them that you can see in the image:
Then insert the components in this way, and if you want, apply the glue gel to slow down the movements.
You may need to round and levigate better the holes to fit the parts.
To remove the shoulder joint from the Chassis, help yourself with a flat screwdriver and turn it from the
base of the part.
- Left Arm
Once the DX arm is finished, repeat the whole print again, mirroring the DX hand on the X asses turning it
into the left hand (easy to do on Cura).
Part Two: Chassis
Now comes one of the biggest print, the one that should accommodate the pilot inside the cockpit of our
Titan (in which unfortunately no, you can not access in this model).
The Chassis piece is about over 7 hours of printing. I printed it facing forward as is shown in the image,
but you are free to position it as you think is better.
Pay attention on how to place the supports to ensure that all the details are printed well. Here i tell you
my settings, but you can do as you prefer:
Infill: 12% ZigZag
Support: enable
Fan: ON
Speed: 40 mm/s
Example image of how the Chassis could be printed
- Vertebra
Now you can fit the Vertebra into the Chassis and to Hip Bone and make the Chassis bend and freely
rotate right and left.
So after removing the supports, you can immediately test the vertebra by sliding it on the base of the
Chassis. Apply here if you want glue gel.
Third Part: Legs and all the rest
The hip bone and femurs is a very big and single print, it is about more than 8 hours of print. I
recommend to take a look at varius level of the print to ensure everything is okay
Here my settings:
Infill: 6% ZigZag or more;
Support: Enable;
Fan: ON
How Hip Bone is made
When everything has been completed you can already connect the vertebra with the hip bone through
the hole in the upper part of the hip bone, and the vertebra by sliding it, to the Chassis.
You may need to apply the gummy glue gel to slow down movements of spheres, or to put something on
inlet that makes friction, like paper scotch tape.
If you need to remove the vertebra from the hip bone, help yourself with a flat screwdriver and turn it.
- Knee, Shin, Foot and Foot Connector
So print the last parts of the titan is not very difficult, just be carefull on choice of supports. The image
below shows to you where to fit the Cylinders on the various pieces of the leg where is shown by yellow
arrows. You can also see how to connect the Foot to the Shin by Foot Connector, which allows the Foot to
rotate in two axes.
Reprint the same pieces again from the file "KneeShinFoot NorthStar" to complete the other leg.
The Yellow indicator is for Cylinders to join the various pieces as shown in picture. The last one is for the
foot junction
Finished!
If all goes well, you can already see your little titan standing up, ready to fight the IMC! Now you just have
to colour, as you prefer, your little big titan. Have a nice work!
Picture of NorthStar in company with others titans... They can't stop fighting