In my previous post about the robot cart I described how I finished the cart and tested the circuit on the breadboard. I only had to solder the circuit to the perf board and mount the board on the cart. Simple, right. Unfortunately it wasn’t that simple. After soldering I tested the board and discovered […]
Author: Eric Buijs
I’m an #privacy, #opensource, #opendata and #openstandards advocate. I’m holding a grudge against Big Tech, big IP holders and authoritharian governments. Furthermore I’m a #3Ddesigner, #3Dprinter, #webdesigner and overall #DIY guy.
In this post I describe how to make an igniter with simple materials and tools. I also provide a little bit of explanation about the working of the igniter.
This experiment is about building a little robot cart. Make:Electronics describes all the steps that needs to be taken in great detail beginning with the cart and then the circuit. This experiment is a lot of work but I think it is worth it because you make a complete robot from the bottom up. The cart […]
Finished camera dolly made out of Makeblock and plywood. The plywood is painted black with a regular (alkyd) spray paint. I make a lot of video’s of our projects so I figured a camera dolly would be a nice addition. I could buy one of course but making one is a lot more fun. About […]
Over this weekend I finished the shoe rack for my wife. I decided to use a transparant high gloss varnish with excellent protection against scratches. This varnish “Rambo Jachtlak” is even suitable for boats so I figured it’s can withstand my wives shoe’s. The price tag of the varnish is hefty but I figured that […]
Previously I wrote about a shoe rack that I’m making for my wife. The initial design had two flaws. First some shoes tended to slide of the shelf. Secondly there was a space between the stands and some shelfs. As a consequence the whole structure was unstable. Yesterday I disassembled the rack. Then I cut […]
During experiment 29 and 30 of Make:Electronics I noticed that the circuit was very susceptible to noise to the point that it really interfered with the experiments. While thinking about it I suspected that something was wrong with the breadboard. I decided to redo both experiments with a another breadboard (but without the low pass […]
In my last entry I wrote about a laptop from a friend that had a damaged harddisk. Yesterday I had some time to replace the harddisk with a new one. Replacing components from a modern laptop can be very cumbersome nowadays. It also requires special equipment. I used the tools from a Velleman repair kit […]
I friend gave an ASUS X750L laptop to me for repair. While gaming he smashed the laptop with his hand (which is not a very smart thing to do). After this incident the laptop became very slow or so he told me. I booted the laptop to see what was going on an I heard […]
After some refurbishing around the house I’m finally back with Make:Electronics. In experiment 30 I used most of the circuitry from experiment 29. The idea is to create a distorted sound. The base of an NPN transitor receives the output from the 555 timer thus controlling the base of another NPN transistor (see fig 5-55 […]