How do you erase ink from the paper? I made an educational video.
The video
May
28
Dec
20
What if rotary encoder does not click
I have got a function generator and power supply for $30 total.
The generator works great, but power supply was kind of weird. It was only adjustable when I did it really, really slowly. Once I tried to go faster, it was jumping to 1 then back to 0 then to 1 then back to 0. Yes, it was usable in general, but for a impatient guy like me it was a torture.
So I took it apart. There was a rotary encoder that did not click. It was just rotating smoothly like a potentiometer. This is clearly not what rotary encoder supposed to do. I decided, that I will likely not be able to repair it because some tiny part is likely broken, so I should buy a new one on ebay. But I decided to check it out first, so I opened it. This is the top part.
Dec
10
Stress Relief
My preferred stress relief technique is woodworking.
Sep
26
Adafruit PWM hat from C#
I can drive Adafruit PWM hat from C#!
I converted Adafruit python code (Adafruit_PWM_Servo_Driver.py) to C# and it works!
May
02
Spatula
I got tired of flipping food I cook with chopsticks. I do not trust plastic spatulas and I do not want to use metal ones on my ceramic pan surface. I can probably buy a wooden spatula, but why not make my own?
Here it is:
Feb
07
This is NOT an elephant toliet
Oct
14
Doomsday Device
How do you achieve the World Domination without a descent Doomsday Device?
Sadly (or maybe fortunately), there are no Doomsday Devices in stores
(even in ATF Bureau regulated ones)
That’s fine, I built one from scratch for Halloween.
Here is how it looks in real life:
Watch Demo!
Here is how it looks:
Aug
11
Fixing crossbow with domino
Jun
14
Tic-Tac-Toe game on JavaScript
What is cool about it? It is really hard to beat. Computer is really smart! (Well, of course, it is very dumb. However, I know a trick or two to make it look smart)
Why did I make it? I’m teaching Xenia to program, and this is what we practice on.
Mar
17
Gear Tree
Gears were designed (well, generated by a plug-in) in Inkscape and milled with CNC.
What is the purpose of this project?
Xenia needed it for school. No, not for science. It is for English writing, believe me or not.