This document describes prototypes created for a caterpillar robot using Lego blocks. It discusses three prototypes created using Tinkercad, Autodesk 123D Design, and Autodesk 123D Make. The first prototype used Tinkercad and allowed expressing the basic shape but lacked detail. The second prototype used 123D Design and could model small parts like screws. The third used 123D Make to develop parts from the 123D Design model that could be used to build a real object. Problems faced included the 123D Design software frequently crashing and an inability to fully edit pre-existing designs or reliably reflect designs in 123D Make. Group members collaborated with different members taking the lead on different software. The conclusion was that prototy
2. CATERPILLAR USING LEGO
BLOCKS
We want to create this product
because ?rst time, we search robot
object that uses Lego by using
Internet.Then that robot car
appeared.We thought that object is
interesting so we select this product.
Secondly, we thought this product can
go ahead in any situation.
Thirdly, the design of this product is
interesting for us.We ?rst time to see
the product that have many wheels.
3. 1st Product Prototype using Tinkercad
To create prototype with Tinkercad.The
original photo was complex so we had to
do deep observation.
We would create caterpillar so we should
to understand with assembly of caterpillar
and system of caterpillar. After that we
created the caterpillar step by step.
Tinkered application can't express detail
shape because we can only use box shape
object, or cylinder shape object, or
simple shape of object. So it's dif?cult to
create prototype completely. But we
contribute to express the original shape.
4. 2nd Product Prototype using Autodesk 123D Design
We created a prototype using the "123D Design" as 2nd
prototyping. "123D Design" the same way as Tinckercad,
can be used to create a prototype using 3D graphics.
This software is designed small parts such as screws and
gear from the beginning. So, it is possible to create a
prototype close to the real thing than Tinckercad. In
addition,Tinckercad is cloud-based. So, it can be used
only in the browser. However, "123D Design" can be
downloaded from the internet.Therefore, it can be used
in local area. If we do a lot of editing in the download
version of the "123D Design", it is sometimes
unexpectedly quit. Image of this prototype is a
caterpillar. It is not too large.This is connected to more
than one tire in a small rectangular Lego block. So, it has
joints.Thanks to the joint, it can be bent.This also has
six motors to move the tire.Therefore, it can be
entered into a small gap which can not be able to enter
the human. If this caterpillar has a camera, when it
entered the small gap, we can see the image of the place.
This functionality is built into a robot for rescue well.
5. 3rd Product Prototype using Autodesk 123D Make
This software take in 123D
Design model.
And setting the option for create
new model. Set to 10 the division
number. Next, set the size of
model. Finally,To show the
developed parts.You can create
this object in real life based on
this developed parts.
21. PRODUCT SPECIFICATIONS LIST
Caterpillar ¡Á 12 parts
Motor ¡Á 8 parts
Gear ¡Á 4 parts
Plate for control unit ¡Á 1 parts
Control unit ¡Á 1 parts
LEGO brock for caterpillar to connect caterpillar ¡Á 6 parts
26. IDENTIFYTHREE IMPORTANT PROBLEMSYOU FACED
DURINGTHE CONSTRUCTION OFTHE PRODUCT
PROTOTYPES USING 123D DESIGN AND MAKE SOFTWARE.
? First problem is that download version "123D Design" force-
quit frequently. If you use 123D Design in low specs PC, it will
force-quit frequently.
? Second problem is that We can not be edited in their own
design that is present from the beginning to the "123D Design".
? When we were applying the design was made with ¡°123D
Design¡± in ¡°123D Maker¡±, it may not be reliably re?ect.
27. group members collaborate
Team work
123D Make: s1190020 Segawa
Tinkercad: s1200176 Endo
4th Linked: s1200183Yamauchi
123D Design: s1210079 Fukabe
123D Design: s1210099 Hanyu
28. CONCLUSION
I felt to be very easy to do because it uses a Lego and
initiative is seen.