I made a back light for a microscope based from some very cheap but powerful 12V LED panel!
Feb
21
Feb
21
CNC a spoon
3D Designing a cube and a cylinder is easy. Try to design a spoon!
Well, I made one:
Continue reading
Feb
21
Starfish Coaster
Yet another laser cutout coaster designed in Inkscape:
Feb
02
Laser engraving plus paint
Laser engraving is cool, but it misses colors. How about a little touch of acrylic paint?
Result looks pretty cool!
This is Belarussian coat of arms “Pahonia”, which means “chase”, BTW.
Shall I do more of those types of projects?
Jan
31
Program STM32 via USB
STM32 is an awesome alternative to Arduino board. Unlike 328P, it has native (fast) USB support. It is cheaper than 32U4. And it faster, 32 bit and has 10x more RAM!
Also, unlike Atmel, counterfeits wannabes are clearly identifiable (look at the microcontroller on your board. If it is CH32 – throw it into a trash can. STM32 and CKS32 are good)
It is easy to make it work – just follow the instructions:
(you can also use ST-Link V2 and connect to the board via 4 wires. I have found this approach very reliable. You can both flash firmware and upload sketches from Arduino IDE. I set both boot header switches to “1″ when I do it. But programming via USB is more convenient, right?)
Ok, so you follow the instructions from Windows 10 PC and try to program your board via the USB and it cannot find the DFU.
Continue reading
Jan
27
4018 CNC upgrade to 4034
Here is my old good 4018:
The problem is – 180 mm in Y is sometimes limiting my project ideas. But how to upgrade it?
Jan
27
Tapping Aluminum
I needed to tap 6 mm thread in the 2040 (you can also tap it in 2020)
What can possibly go wrong? Aluminum is soft, right? I have tapped a lot of thread in all kind of steel parts and have a steady hand.
Well, I broke a tap.
Jan
27
Bitmap To Laser Cutout
Many years ago my daughter had a school project – making t-shirts
She came up with this design and made one t-shirt for me:
Jan
18
G-Code-Friendly Smooth Fractal
Hey, it looks like I invented a new flavor of fractals well suited for laser engraving! Here it is:
Dec
28
OpenSCad to FreeCad Path Lifehack
I am either missing something and re-inventing the wheel, or I invented a pretty clever lifehack.
Here is the problem:
you can design awesome things in OpenSCad, like this spinner (you need to glue 2 of them together with 4 ball bearings in between)
Then you can load the SCad file straight into FreeCad Path and create G-code. Then you just send that G-code to your CNC mill and cut it.
Awesome! But not so fast!