Welcome to Kalim's page of Pre-Engineering


Assignment 1


kalim 6b A.png
This is my very first assignment for pre-engineering. I starting to have a glimpse on what pre-engineering is and what AUTO CAD software does now. From this MV assignment I began to understand a little about navigation in AUTO CAD. In addition, I also learned how to use the line tool properly by drawing lines anywhere, drawing lines by entering absolute coordinate and also by plugging in the next coordinate point relative to the initial point. It didn’t find it any trouble at all making the M and for the V I just enter the coordinate of the first point and then mentally calculate the next point using relative coordinate. By using relative coordinate it is not possible for me to find the exact coordinate of the corner so I just hover the mouse around the corner and estimate the value of the coordinate. These skills will enable me to understand and applied plane coordination in AUTO CAD for my future designs.








Assignment 2

Compared to the MV assignment, I have been working on making slanted lines using relative coordinates(@x,y). From the last assignment, I just moved the mouse to the place I think is right and estimated the coordinates that match with the grid. But this time, for the diamond I started using patterns for the relative coordinates. The slanted line of the diamond always had the slope of 1. Which made the x and y value the same, when I use the relative coordinates. With this skill, I can now apply this to all the future assignments without estimating and moving the mouse around, making lines facing various directions. I just need to analyse the slopes of the. This skill can be applied in various ways in real life application. One of those examples is building a side with a given degree. Any 20 degree line has the slope of approximately 0.364. So we just need to keep the ratio @x,y(0.364x) to keep the line in that angle compared to the origin. Every object in the world is made up of lines with different angles(even circles which has infinite number of almost 0 length lines). So with this skill, I can make any shapes in AutoCAD, using the relative coordinate tool. The problem that I ran into during the assignment is that my lower menu bar was blocking my coordinates. But Mr. Bailey helped me with that. But later on, I went to vist my classmate's wiki and saw that they can also put @x,y form coordinates. So, from now one I am also going to use any form necessary when showing my process.

X(spiral)
Y(Spiral)
X(diamond)
Y(Diamond)
1
1
15
6
@0
10
@5
5
@10
0
@5
-5
@0
-9
@-5
-5
@-9
0
@-4
5
@0
8
@4
4
@8
0
@4
-4
@0
-7
@-4
-4
@-7
0
@-3
4
@0
6
@3
3
@6
0
@3
-3
@0
-5
@-3
-3
@-5
0
@-2
3
@0
4
@2
2
@4
0
@2
-2
@0
-3
@-2
-2
@-3
0
@-1
2
@0
2
@1
1
@2
0
@1
-1
@0
-1


@-1
0


@0
0.5







Kalim 6b B.png








Assignment 3


Comparing to the last assignment, I have been working on a different coordinate from the Cartesian one. It’s the polar coordinate. Beside from plugging in the absolute coordinate and the relative coordinate, I used the polar coordinate, which simplify a lot of thinking when I have to work on slanted lines. I just need to put the length of the segment and the degree of which it turns. I didn’t ran into any problem at all for this 3rd assignment, because I used a very easy figure for my own design, a simple boat with a flag. This figure only have 2 slanted line which make my thinking process and design a lot simpler, but at the same time, the figure is also nice and creative. This new skill that I have learned will make my future designs more coherent and faster. Because now, I have learned all types of 2d coordinate in AutoCad.


Point
Command
A
3,510
B
@5<130
C
@10<0
D
@7<90
E
@1<0
F
@7<270
G
@3<0
H
@8<90
I
@3<0
J
@2<-90
K
@2.6<180
L
@6<-90
M
@6<0
N
@6<0
O
@5<-130
P
Back to point A

kalim 6b C.png








Assignment 4



For this assignment, I didn’t really working on something new tool at all, but this time I am analyzing the coordinates instead of using them from the instructions. I had to figure out all three types of coordinates from the given figure. I didn’t learn any new tool because this assignment is just a collaboration of all my past assignments. But I have polished my skill of using all the 3 types of coordinates, that I can now speed up my work and better accuracy too. I didn’t ran into any problem at all doing this assignment, because I had ran to all the problem already during all the last 3 assignments. With this new skill of finding coordinates, I can use one system to check if the others is right and also apply the right coordinate system to its most suitable figure or parts of a figure.


The W
kalim 6b 4,1.png


kalim 6b 4.png

The Arrow


kalim 6b,3.png



kalim 6b 4,2.png





Assignment 5


For this whirligig and geo-cat designs, I have been working on using geometric preference for figures known as snaps, and using trimming tool. I now know how to enable all the geometric snaps in AutoCad and applied them in my figure without doing any calculation, which simplify a lot of works. This skill is going to be one of the most important skill in drafting, because as we can see most of out daily objects that we are familiar have properties such as parallel, perpendicular, mid-point, symmetry and so on. The problem I ran into this time is when I am designing my geo-cat, I didn’t understand how to use the trim tools properly. I couldn’t cut the arc off my cat face. After I got some help from Mr.Bailey I am starting to get it a little, and I believe future practice and assignment will make me understand it better.


Whirligig

kalim 6b 5,1.png



Geo-Cat


Kalim 6b 5,2.png







Assignment 6


I have been working on another 2 cool tools in AutoCad for this assignment. It’s the dimensioning tool, which come up with all sorts of dimensioning like arc, angle, linear and so on and I also learned how to use the symmetry mirroring tool. This tools enable me too copy or move a certain sides or figures to another coordinates which mirrors relative to the original one. These two skills is very important for future usage. Every blueprints has their dimensioning on, so if I don’t know how to put the dimensions on my design, It will never become realistic and can never applied in the real world. The problem I ran to is when I was making the side which has 30 degree angle, because it doesn’t show the length on it. So I just try randomly to make it both 30 degree for a few times, but I failed. Then I realized that those two lines are equal, so I create a mid-point line for those line to meet and then I drew and line from the vertical line and hovered on the mid-point line until it shows 60 degree. Afterward, I just delete the midpoint line. I also did the same thing on the octagon for my Sqoctadicle (square+octagon+di circle).
This creating a mid-point line will be used to design a lot of objects if I want to make lines in the middle with no initial line. It will shorten the time I waste on trying randomly to find mid-point with no initial line.

Stamping
kalim 6b 6,1.png


Squoctadicle

kalim 6b 6,2.png






Assignment 7


For this Polygon and atomic assignment, I have learned how to use the move, rotate and scaling tools. This tool enabled me to move or copy a certain shape then scale it or rotate it along an axis. These tools can be used to speed up my designs and also make copies of objects in any patterns like the the distance indicator on a ruler. I did not run into any problems in this assignment except for having a little hard time figuring out how to make a cool object from these tools that I learned from the video. I was successful in this assignment by creating a cool object from the tools I learned and also made an atomic symbol which I don’t know which atom it is.


Atomic symbol

kalim 6b 7,1.png


HEX Dager

kalim 6b 7,2.png





Assignment 8



For this Assignment, I have been working on only 2 new skills. The first one is using the point of origin for my design, which I found quite different and a little bit more complicated, but it's ok. The other is making a rectangle with smooth edges in a faster way. I used to make smooth edged rectangles by drawing lines to make it like a rectangle but I didn’t draw the edges, after that I just used to arc tool to make the edges. These skills that I learned can enable me to make a faster smooth rectangle. A lot of objects from real life have smooth edges, like tables and chairs. I didn’t encounter any problems during this assignment at all. I was successful because I could make the same slote plate as the assignment and also could create my very own 2D T.V.

Slote Plate

kalim 6b sl,1.png

T.V





kalim 6b sl,2.png





Assignment 9


Compared to the last assignment, I have been working on the concept of making 3D objects in a 2D grid. The only skill I learned in this assignment is changing the original AutoCAD grid into a dot-like grid. This grid has simplified the process of making 3D objects in 2D grid. There are not many real objects that can be designed into this type of grid but a lot of 3D shapes can be design in this grid except for rounded edged objects.
I didn’t run into any problems in this assignment at all. I was successful, because I could replicate the shape from the assignment and also create my very own geometrical shape.

kalim 6b 9,1.png






Assignment 10


For this assignment, I had to design something completely different. It is to design an object in 3D grid. The skill I learned from this assignment is to use the 3D array tool, that is because I have already tried to draw a cube and cylinder before the assignment. This skill will be very helpful, because I can use it to copy 3d objects in a smarter way and faster way. This assignment can be used to design a Rubik's cube, of course! It can also be used to design objects like student lockers and drawers. I didn’t run into any problems in this assignment. I was successful in this assignment because I was able to make the Rubik's cube and also make the 3 cylinders in the cube.


kalim 6b 10,1.png

kalim 6b 10,2.png

kalim 6b 10,3.png





Assignment 11


This frisbee assignment was the most enjoyable assignment so far. I still worked on 3D grid coordinates like the Rubik's cube, but I have learned how to use the revolver tool, which is a very versatile tool. This tool can used to make a lot of daily 3d objects like, cans, bottles, clocks and a lot of other objects. I also didn’t run into any problems in this assignment at all. I was successful because I was able to make the frisbee and also was able to make my very own bowl. The skill I learned in this assignment will be used very often in the future. I just knew it, because there is also a calculus lesson that involves revolving 2d objects to make 3d objects.

kalim 6b 11,2.png

kalim 6b 11,1.png




kalim 6b 11,3.png