Tag: 3d printing

DIY Open Source Chronograph

3D Printing, Electronics, Software, , , ,
I got into airsoft recently, and I wanted a way to measure the BB’s velocity. The cheapest chronographs I could find were ~60-70€. I thought making one myself would be much cheaper and a good learning experience. The total cost was about 15€. I tested it with an Army Armament R504, its specs sheet says it shoots at 300 FPS, I measured 298 FPS which is within the margin of error. All the files for the project can be found on github. Schematic Below you will find 2 versions of the schematic. One using photodiodes and the other phototransistors. Initially…

Ultimate Ender 3 upgrade guide

3D Printing, ,
This is my 3d printer. There are many like it, but this is mine. My 3d printer is my best friend. It is my life. I must master it and upgrade it as much as i can. -me My 3d printer is perhaps the most useful tool that I have. It’s a Creality Ender 3 that I got back in 2019 for ~160€. Since then, I have done multiple upgrades. It has almost become the ship of Theseus paradox. Below you will find all the upgrades I have done so far, and my experiences from this long journey. I will…

Wirebuzz: A simple cable continuity tester

Electronics, , , , ,
Continuity testers are very useful tools, especially when you need to find where a cable goes (if you have multiple cables) or to verify the integrity of the cable. This continuity tester was made for the sole purpose of testing long cables and it is not suitable for some components because it uses 12v so that it can be able to test long cables. Parts Tools Regarding tools you don’t need anything special, i highly recommend a thin conical tip for the soldering iron if you will be using the 3d printed enclosure. Schematic The schematic is quite simple. On…

Dual gear drive lubrication

3D Printing, Mechanical, , ,
Those cheap(15-20€ from banggood at the time of writing) dual gear drive extruders are pretty useful. They grip the filament very well and prevent sliping, they also almost necessary for flexible filaments. They are also more durable than the plastic ones included with most creality printers (like my ender 3), the stock plastic ones have the tendency to crack. While it is an easy and affordable upgrade it has one issue, it lacks proper lubrication. I had mine for about two years before it started doing a clicking noise and soon a loud clunking noise, it has especially noticeable during…