Difference between revisions of "S18: XY-Plotter"

Revision as of 05:48, 14 May 2018

Grading Criteria

How well is Software & Hardware Design described?
How well can this report be used to reproduce this project?
Code Quality
Overall Report Quality:
- Software Block Diagrams
- Hardware Block Diagrams
  Schematic Quality
- Quality of technical challenges and solutions adopted.

Project Title

XY-Plotter

Abstract

We live in an epoch where the world is driven by technology. In recent decades, there have been so many advances in the field of technology. With this advancement for human upliftment, automation has become a paramount factor. | The project aims at building a 2D XY-plotter which can efficiently draw 2D figures. The plotter machine is assembled based on the H-bot mechanism where the two stepper motors are on the main chassis connected to the single belt. Both the motors account for the movement of the chassis in X and Y axis. A servo motor is used to control the pen height which is connected to the main chassis. Gcode interpreter is developed in order to make the SJ one board decode the G-code and control the motors accordingly. Sd-card is used to provide the Gcode to the SJ one board.

Objectives & Introduction

XY plotter is a CNC based drawing robot capable of drawing 2D figures. It uses LPC1758 ARM Cortex M3 based microcontroller as a brain of the robot.

The objectives of the project are:

To learn FreeRTOS multitasking and demonstrate it.

Team Members & Responsibilities

Akshay Kurli
Gaurav Yadav
Pritam Gholap
Tanmay Kishore Jambhekar

Schedule

Week#	Date	Task	Actual
1	03/27	Research different mechanism for plotter assembling. Requirement documentation.List out the parts required.	Completed on 03/31
2	04/03	Order Components	Completed on 04/08
3	04/10	Determine the required software for generating and visualizing the Gcode. Read file from Sd-card and interpret single line G-code.	Completed on 04/11 Completed on 04/30
4	04/17	Test both the stepper motor and servo motor with the SJ one Board. Design the PCB shield for servo and stepper motor.	Completed on 04/19 Completed on 04/23
5	04/24	Assemble the plotter machine. Circuit testing on protoboard. Calculate the relation between G-code values and PWM pulses on both the stepper motors.	Completed on 04/25 Completed on 04/27 Completed on 05/05
6	05/01	Develop the motor task to run both the stepper motors and servo. Run the stepper motor according to interpreted G-code. Test the plotter machine for drawing a straight line (Single line Gcode).	Completed on 05/01 Completed on 05/05 Completed on 05/08
7	05/08	Interface limit switch for determining plotter initial position. Develop the interpreter task to read multi-line G-codes. Establish communication between interpreter task and motor task.	In progress

Parts List & Cost

Give a simple list of the cost of your project broken down by components. Do not write long stories here.

Item#	Part Desciption	Vendor	Qty	Cost
1	SJOne Boards	From Preet	1	$80.00
2	Nema-17 Stepper Motor	Amazon	2	$28.00
3	Micro Servo Motor 9G	Amazon	1	$2.6
4	GT2 Timing Belt and Pulley wheel	Amazon	1	$14.99
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Design & Implementation

The design section can go over your hardware and software design. Organize this section using sub-sections that go over your design and implementation.

Hardware Design

Discuss your hardware design here. Show detailed schematics, and the interface here.

Hardware Interface

In this section, you can describe how your hardware communicates, such as which BUSes used. You can discuss your driver implementation here, such that the Software Design section is isolated to talk about high level workings rather than inner working of your project.

Software Design

Show your software design. For example, if you are designing an MP3 Player, show the tasks that you are using, and what they are doing at a high level. Do not show the details of the code. For example, do not show exact code, but you may show psuedocode and fragments of code. Keep in mind that you are showing DESIGN of your software, not the inner workings of it.

Implementation

This section includes implementation, but again, not the details, just the high level. For example, you can list the steps it takes to communicate over a sensor, or the steps needed to write a page of memory onto SPI Flash. You can include sub-sections for each of your component implementation.

Testing & Technical Challenges

Describe the challenges of your project. What advise would you give yourself or someone else if your project can be started from scratch again? Make a smooth transition to testing section and described what it took to test your project.

Include sub-sections that list out a problem and solution, such as:

<Bug/issue name>

Discuss the issue and resolution.

Conclusion

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Project Video

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Project Source Code

Sourceforge Source Code Link

References

Acknowledgement

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References Used

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Appendix

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