Notes, summaries, assignments, exams, and problems for Technology

Machining and CNC

15—Free—Tied Up---By—should---Take—Thursday—Make—Say—Then—confirm—short—On—until

16---Logistics manager—Outsource---Inventories---Competitive market---Trends---Product cycle times

17—Match these phrases diagram 1B—2E—3G—4I—5D—6A---7C—8F—9H—10J

18---Comparative Adverb---Prints faster---Runs better---Cuts worse---Get up earlier---Drives more carefully---Finished later---Work harder

19-- have—repaired---was—Isoldered—ordered—called-- haven´t had

20—Predictions---Resist---Store---Replace---Perform---Take---Send---Remove---Clean up---Wear---Stop

Possibilities 2-Steel springs. He wants them made in plastic

Exercise 4- (1 d) (2a) (3c) (4b) (5e)

21---True—False---True---False---False-... Continue reading "Machining and CNC: Processes, Techniques, and Applications" »

Topic 1. Test

• Test=prueba
• Broad=amplia
• Assess=evaluar
• Manufacture=fabricar
• Power transmission=transmisión de potencia
• Improve=mejorar

E1: Hi, I’m Ian Moore. I’m here for an interview.

E2: It’s nice to meet you, Ian. Tell me about your work experience.

E1: Well, I worked for Escribano for twelve years.

E2: What were your job duties?

E1: I assessed old engine models. Then I made suggestions to improve them.

E2: Did you design any engines?

E1: Not on my own. I designed new parts for older models.

E2: If we hire you, you’ll design new ones as well.

Topic 2. Bearings / Cojinetes

• Ball bearing=rodamiento de bolas
• Thrust roller bearing=rodamiento de rodillos de empuje
• Tapered roller bearing=rodamiento de rodillos cónicos
• Straight roller bearing=rodamiento de

Cloud Computing: An Overview

Cloud computing allows access to data and software over the internet, eliminating reliance on hard drives or SSDs. This facilitates convenient online backups of photos and private data, mitigating concerns about hardware crashes or viruses.

Cloud Provisioning

Cloud service providers invest heavily in storage hardware, data centers, and their maintenance, addressing temperature, security, humidity, hardware obsolescence, and more. Cloud provisioning encompasses various methods:

• Advance Provisioning: Clients contact providers, resources are prepared in advance, and fees are charged annually or monthly.
• Dynamic Provisioning: Resources are assigned as needed, often on a pay-per-use basis.
• User Self-Provisioning: Users purchase

Functions of the Drillstring:

• Transmits rotation to the drillbit
• Exerts weight on the bit; the compressive force necessary to break the rock
• Guides and controls the trajectory of the bit
• Allows fluid circulation for cooling and cleaning

Components of the Drillstring:

• Drillpipe
• Drillcollars
• Accessories including:

• Heavy-walled drillpipe (HWDP)
• Stabilisers
• Reamers
• Directional control equipment

The Kelly:

• Transmits rotation and weight-on-bit to the drillbit
• Supports the weight of the drillstring
• Connects the swivel to the uppermost length of drillpipe
• Transmits drilling fluid from the swivel into the drill string

The Top Drive:

A combined rotary table and Kelly mounted on the rig's swivel, assisting in pipe handling during operations.

Drilling Problems:

• Pipe Sticking
• Lost

Mechanism Classification

Mechanisms can be classified based on their function:

• Transmission of Motion:
  • Linear transmission (lever, pulley)
  • Rotatory transmission (gears and belt drive)
• Transformation of Motion:
  • Rotatory-linear (wheel, crank)
  • Reciprocating rotatory-linear (cam, crank and rod)
• Motion Control:
  • Direction control (ratchet and freewheel)
  • Speed reduction (brake)
• Energy Accumulation:
  • Absorption/dissipation (spring)
• Connection:
  • Linkage (clutch)
  • Support (plain bearing)

Energy and Work in Mechanisms

Mechanisms seem to increase force, but they cannot create energy on their own. All mechanisms produce the same amount of work that is done to them, including energy that is lost to friction and heat. If a mechanism increases force, it must decrease motion.... Continue reading "Principles of Mechanism and Motion Transfer" »

What is Computer-Aided Engineering (CAE)?

CAE formalizes ideas through computer modeling and then fabricates the models into real-world objects through CAD and CAM.

What is Computer-Aided Reverse Engineering (CARE)?

CARE works in the opposite direction. CARE creates a computer model of an object through measurements of the object as it exists in the real world. CARE is the reversal of CAE.

What is a Coordinate Measuring Machine (CMM)?

• Coordinate Measuring Machines (CMMs) are a practical means for characterizing and inspecting free-form surfaces.
• Coordinate Measuring Machines (CMMs) first appeared in the early 1960s.
• A CMM consists of a probe supported on three mutually perpendicular (x, y, and z) axes, and each axis has a built-in reference standard.

Traffic Light with Arduino

This code simulates a traffic light using an Arduino.

int led_rojo = 3;
int led_verde = 4;
int led_amarillo = 5;

void setup() {
  pinMode(led_rojo, OUTPUT);  // PIN 3 as output
  pinMode(led_verde, OUTPUT); // PIN 4 as output
  pinMode(led_amarillo, OUTPUT); // PIN 5 as output
}

void loop() {
  digitalWrite(led_verde, HIGH); // Turn on green LED
  delay(2000);
  digitalWrite(led_verde, LOW);  // Turn off green LED
  delay(500);
  digitalWrite(led_amarillo, HIGH); // Turn on yellow LED
  delay(2000);
  digitalWrite(led_amarillo, LOW);  // Turn off yellow LED
  delay(500);
  digitalWrite(led_rojo, HIGH);   // Turn on red LED
  delay(2000);
  digitalWrite(led_rojo, LOW);    // Turn off red LED
  delay(500);
}

Button

Malware

Malicious software, is a type of software that has been particularly designed to gain access to or damage a computer, mostly without the knowledge of the owner. There are a lot of types of malware, including computer worm, computer viruses, Trojan horse, adware and spyware.

Computer Crime

Defined as a crime in which a computer is the object of the crime (hacking, phishing, spamming) or is used as a tool to commit an offense (child pornography, hate crimes). Cybercriminals may use computer technology to access personal information, business secrets or use the internet for malicious purposes.

Trojan Horse

A type of malware that is often disguised as legitimate software. Trojans can be employed by cyber-thieves and hackers that offer useful... Continue reading "Understanding Malware and Cybercrime: A Comprehensive Guide" »

Technology's answer to the problems of society is to build products using a simple method called the project approach. The stages of the project approach include: problem, investigation, possible solution, chosen solution, design, planning, building, check, presentation, and assessment.

Report documents include:

• Description of the prototype
• List of modifications made
• Final drawing of the solution
• Total cost of the project and the number of hours spent on it
• Environmental impact of the solution created

Serendipity: The fact of finding interesting or valuable things by chance, by mistake. Coordinator: coordinates the work. Secretary: keeps the project documents safe and writes down the tasks that are completed each day and who did them. Tools manager: