In this project we modify the existing design.

1. project # 1
(Final version)
Title:
Making a 3D nut tightener.
Problem statement:
We have to make a 3D nut tightener of a metal (steel) with multiple tools. Take three metal rods
of a specific length and join them with each other in such a way that there should be an angle of
90 degree with each tool.
Objective:
The objective of this is that to make a tool in such a way that at a time worker at any workstation
can use many tools (like 6 tools at a time). For doing so, we make 3D tap with 6 different tools.
Function to be addressed:
This 3D nut tightener has a function that a worker on a specific workstation has to use different
tools at a time. He requires numbers of tools. So, to facilitate him we make a 3D nut tightener
with 6 tools. And make a spot portable on which we can change that tool with other tools. This
will improve the working speed of the worker and safe time.
Cost effectiveness and market demand:
This tool has these parts:
 Steel rod of any specific length and diameter (round about 300 rupees)
 5 tools to be fixed (round about 500 rupees)
 1 spot is portable with specific tool kit. (this cost depends upon the number of tools that
we have to us eon this portable spot.)
This has some extra cost than a simple tap to join and attach the rod with each other and tools
with the end points of the rods. But this process will also save the cost of multiple tap that are
used at that place. We can used 6 different tools at a time at one tap. This 3D tap also attract the
worker to buy this tool because this will decrease the more extra effort of picking more tools. It
decreases the time consumptions. So, it will be demanded in the market.
Impact on society:
This tool has a huge effect on society. It decreases the human body movements, decreases the
use of multiple tools.

2. This will savethe time and body’s energy consumption to move and pick one tool useit and move
to set back that tool and pick up the second tool to use it and then move to set back and so on.
It is a wonderful revolution
Technological Constraints:
There will be many technological constraints such that;
o What kind of material we use in making tap?
o What is the structure of tool.
o If using rod, then What is the method of joining the rods?
o What kind of tools we want to attach of the 5 fixed spots of the 3D taps?
The answers are discussed in conclusion.
Concluding:
Firstly, we have to know about the material of our tool. This will depend upon the usage of our
tool. The demand of our worker and workstation. Such that material can bear the loads that we
have to apply on the tool
Secondly, we have to design the structure the tool that what is the shape of tool. Our tool that
we are going to make is a 3D tool. The prototype of this tool will be provided on demand from
the diagram of any software.
Then, we have to consider the joining method of the rods that we are using in making our tool.
Comments of project selection committee:
 The project selection committee has decided to use steel rods of 40mm dia.
 We will use a cube of mild steel in which we make 6 internal threaded holes to connect
the rods at the six sides. And make external threading on rods and tight them in the mild
steel cube.
 The five fixed tools that we have decided to use are
tools of five different size. To which one them is
given in photo:
 We also use an extra tool of number 15 to tight the
rods on mild steel cube.

3.  The final tool formed is as:
Figure 1: All tools
Figure 2: rods with tools attached to them

4. Figure 3: Cube with threaded holes
Figure 4: portable tools

5. Figure 5: Final Product
Figure 6: Extra Tool which will be used to tight the threads of rods