16 mechanical design, machine design

fernando meneses

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about meabout me
1 principles and practices1 principles and practices
2 computer-aided design2 computer-aided design
3 computer-controlled cutting3 computer-controlled cutting
4 electronics production4 electronics production
5 3D scanning and printing5 3D scanning and printing
6 electronics design6 electronics design
7 embedded programming7 embedded programming
8 computer-controlled machining8 computer-controlled machining
9 molding and casting9 molding and casting
10 input devices10 input devices
11 output devices11 output devices
12 composites12 composites
13 networking and communications13 networking and communications
14 interface and application programming14 interface and application programming
15 applications and implications15 applications and implications
16 mechanical design, machine design16 mechanical design, machine design
17 invention, intellectual property, and income17 invention, intellectual property, and income
18 project development18 project development
19 project presentation19 project presentation

16 mechanical design, machine design

For this activity, a 3D scanning machine was developed using two axes of the machine Gestalt and an axis of rotation, here’s a video of the prototype.

This is a team activity, Patricio Ortiz and Rafael Gutierrez worked on cutting and assembly of cardboard. Daniela Frogheri, Karyna Ana Gomez and I, we work with programming. At the beginning we were trying to set the PCB Gestalt, here’s a video to remember.

But after many, many, many attempts we end up thinking that this was because physical errors such as the FTDI cable TV, some PCB worked to a certain point and others were not working but nothing. As we had time for us we decided to look for alternatives and found some drivers for stepper motors.

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In the end the Easy Driver and TB6560V2, controlled from the FabKit were used.

Easy Driver:

EasyDriver_v44 (1)

http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Robotics/EasyDriver_v44.pdf

https://www.sparkfun.com/datasheets/Robotics/A3967.pdf

TB6560V2

Tb6560 stepping motor driver .

http://www.selloutsoon.com/albums/documents/20-019-200/Tb6560%20stepping%20motor%20driver%20…pdf

 

here the code.

  1. int P = 8;
  2.  int D = 10;
  3.  int V = 50;
  4.  int P1 = 30000;
  5.  int P2 = 300;
  6.  void setup() {
  7.  pinMode(D, OUTPUT);
  8.  pinMode(P, OUTPUT);
  9.  }
  10.  void pasos(boolean dir,int pasos){
  11.  digitalWrite(D,dir);
  12.  delay(100);
  13.  for(int i=0;i<pasos;i++){
  14.  digitalWrite(P, HIGH);
  15.  delayMicroseconds(100);
  16.  digitalWrite(P, LOW);
  17.  delayMicroseconds(100);
  18.  }
  19.  }
  20.  void loop(){
  21.  pasos(true,P1);
  22.  delay(V);
  23.  pasos(false,P2);
  24.  delay(V);
  25.  }

Our machine only needed to control the movements of axes to calibrate the camera, this time we chose a mobile phone, but future versions will use the camera recommended by Neil , this is a video with the demonstration of the shooting.

Scanny 0.0

FullSizeRender-8

components:

FullSizeRender (6)

_conclusion

To make a machine is fabulous, it is out of frustration with the PCB of Gestalt, the experience of thinking in the machine it was amazing, now that we already move the engine is easier to imagine what else could be done, and here everything is possible. Undoubtedly make a machine is a necessary activity in the philosophy of doing almost anything.

see more >>>

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Original source: http://academy.cba.mit.edu/classes/mechanical_design/index.html

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Contact:  fernando.meneses@udem.edu / fernandomeneses@nodolab.com /  f  /  in  /  g+ / b / v / mx / w