2024 – EXASUB

Posted on December 27, 2024 by Abhay Kant — Leave a comment

CREALITY Ender-3 V3 KE

I bought the printer from wol3d’s New Delhi office.
I am a electronics guy but i have inclination towards the 3d printing world. The feeling that you can design and make something in front of you. It’s a slow process but this printer comes with a slicer software which is fast.

Build Volume : 220 x 220 x 240 mm

The best thing is the auto bed leveling on this printer. I do not have to adjust the four corner bolts and rub a paper under the nozzle. It is done automatically done.

Till now the results are amazing.

I have noticed that the prints depends upon a lot of things:

Filament Quality :
I have used a few filaments samples i got my hand on they were old and new. The old one which are above one year old open packet are just brittle they clog the printer every now and then. and one time it was so break while in the extruder which set my heart racing as i don’t want new printer to clog and change its nozzle. Thankfully the nozzle clogged removed when i inserted the fresh PLA and forced it into the extruder.
So yes always use new filament. And also some filament are bad weather they are new or old.
Bed adhesion
Print Temp
Slicer Setting

Posted on April 28, 2024 by Abhay Kant — Leave a comment

How to blink the onboard LED on the ESP32 Devkit V1

The onboard LED is connected to GPIO 2

code

#define led 2
void setup() {
  // put your setup code here, to run once:
pinMode(2, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(led, 1);
delay(1000);
digitalWrite(led, 0);
delay(200);
}

Posted on January 5, 2024 by Abhay Kant — Leave a comment

A Step-by-Step Guide on Installing OpenCV with pip in Windows

OpenCV, or Open Source Computer Vision Library, is a powerful and widely-used open-source computer vision and machine learning software library. It provides a plethora of tools and functions for image and video processing, making it an essential resource for developers, researchers, and hobbyists. Installing OpenCV on a Windows system can be a straightforward process when using the Python package manager, pip. In this article, we’ll walk you through the steps to install OpenCV on your Windows machine using pip.

Prerequisites:

Before diving into the installation process, ensure that you have the following prerequisites:

A Windows operating system.
Python installed on your machine. You can download the latest version of Python from the official website: https://www.python.org/downloads/.

Installation Steps:

Follow these step-by-step instructions to install OpenCV using pip in Windows:

Step 1: Open a Command Prompt

Press Win + R to open the Run dialog, type cmd, and press Enter. This will open the Command Prompt.

Step 2: Upgrade pip

Ensure that your pip is up-to-date by running the following command:

pip install --upgrade pip

This ensures that you have the latest version of pip installed.

Step 3: Install NumPy

NumPy is a prerequisite for OpenCV, as it is used for numerical operations. Install it by running:

pip install numpy

Step 4: Install OpenCV

Now, you can install the OpenCV package using the following command:

pip install opencv-python

This command will download and install the latest stable version of OpenCV along with its dependencies.

Step 5: Verify the Installation

To ensure that OpenCV has been successfully installed, open a Python interpreter or create a simple Python script and import the cv2 module:

import cv2
print(cv2.__version__)

This should print the installed OpenCV version, confirming that the installation was successful.