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.
My preferred stress relief technique is woodworking.
I can drive Adafruit PWM hat from C#!
I converted Adafruit python code (Adafruit_PWM_Servo_Driver.py) to C# and it works!
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:
No, I’m not going to buy an elephant!
No, this is NOT an elephant toilet!
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:
Here is how it looks:
How to fix a crossbow with a domino:
I’ve got a nice crossbow:
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.
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.
This project was quick and easy, yet the result is so much fun!
All I needed is 4 x wooden blocks, 2 x 3/4″ steele pipes, 4 pipe hangers and 8 screws. That’s it!