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Showing posts from 2017

GIT Version Control Tool

This article contains basic commands and usage information of GIT version control tool. GIT is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency. Version control is a system that records changes to a file or set of files over time so that you can recall specific versions later. You can download and install GIT from After installation, open git bash from Windows start menu. Just click on your new “Git Shell (or Bash)” Icon and type git commands in the Git “MINGW32” Terminal window. Initializing a Repository in an Existing Directory $ cd yourDirectory $ git init Start Version Control of Existing File $ git add myfile.c  //staging modified files $ git commit -m 'intial project version' $ git pull origin   //Pull the updates from repository. $ git push  //Send updates to the repository. Get a Copy of an Existing Git Repository

Skywalker X8 Tiltrotor

This blog post includes the details of my VTOL aircraft build project. VTOL means "Vertical Take Off and Landing". After my multicopter and remote control model helicopter builds, I was interested in Vtol aircrafts. Because of short flight time drawbacks of multirotors, I searched for the solution which has longer endurance. Fixed wing aircrafts have longer flight time and flight range advantages over multicopters. But they require runways or catapult launch systems/parachute for takeoff and landing. I searched most feasible fixed wing RC (remote control) aircraft to transform it to a vtol aircraft. My first and most important requirement was that the aircraft should have enough space to put all my avionics. Meanwhile I saw a Skywalker X8 in the second hand rc equipments announcement group. After studied its specifications, I decided to use Skywalker X8 delta wing aircraft for my VTOL build project.   I bought Skywalker X8 and started to search tilt mechanism. At

3D Printing

During my vtol aircraft build, I had needed a tilting mechanism. I searched RC helicopter parts and some industrial parts. But I realized that their total weight were more than my aircraft lift capacity. I was curious about 3D printers. When I looked their prices, I saw broad range of prices from a few hundred dolars to a few tousend dolars. At the end I have ordered a DIY 3D printer set from Aliexpress. It is a RepRap Prusa I3 based 3D printer and it has following specifications. Model: 3DCSTAR P802MA_v1.9 Auto Leveling Control Board: Melzi v2.0 Interface Type: USB Structure Material: Full acylic and metal Filament Diameter: 1.75mm Layer thickness: 0.1-0.4mm Print speed: 40-300mm/s Filament Material: ABS & PLA HIPS PA WOOD PVA Nozzle size: 0.2mm, 0.3mm, 0.4mm support                    Max Printing Size: 220*220*240mm I paid $225 for printer and $40 for custom tax. You can see my 3D printing process as following.