This is exactly why I love 3d printers. When you have an idea you draw it and then you print it. Simple as that.Of course the soldering pen needs a stand. And why can't it be printed?I know that a lot of people will tell me that it will melt and maybe...
Here is an old cnc project I made when I was just getting started with all of this. I had a broken XYZ DaVinci Mini W printer that was missing several key parts. I decided to turn it into a pen plotter.I made a new pen holding tool...
Summary about 4:00 pm, Monday, January 21, 2019 Soldering stuff together. Out of fear of destruction, this was done in steps, testing along the way. Deets First, the NodeMCU board has pin headers soldered on (or at least mine do). These aren't...
New controller is now in place after refactoring the Motori code and adding some HPGL commands including escape sequences for querying the input buffer size and free space. The escape sequences can be used by the app sending data to avoid overflowing...
We are part of Wimbledon Art Fair this weekend, and the plotter (which I have named "Picoplot" for the sake of having a title!) is hanging just inside the studio door, as a nice way to draw folks in. Blinky lights and moving robots! I've painted...
The very first PCB I assembled was populated using tweezers but it didn't take long to realise that tweezers are not very efficient for a number of reasons: There's not enough space around a component in the tape to get the tips of the tweezers in and...
If the picture isn't a bit of how I felt when assemlbing these little tricksters than the explanation will. The entire build except for one piece went smoothly. Some parts were no longer being sold so I had to improvise with better newer...
I've been developing the next iteration of ZAViouR and it's first I/O Port. I will be adding a backplane but I want to get the first interface designed and working beforehand. This will enable me to test the connections are in the correct topology etc....
I went with JLCPCB to fabricate these boards and was very happy with the quality. I emailed them beforehand to ask about how they wanted me to notate NPTHs that went through copper pours (usually this signals a PTH). In the end I added a build note to...
The ESP8266 dissipates enough heat to skew my thermostat reading by almost 2 degrees Celsius, which is no fun. I thought of beforehand and added a foam pad between the back of the thermostat and the Wemos board; this was however not enough. You can't...
I am presently still waiting for the specialized PCB drill set I ordered to arrive, as it is required in certain very tight spots around the outer traces, especially the speaker button.However, in doing research for this there is, perhaps another potential...
According to the wiibrew wiki the following is true.decrypted_byte = (encrypted_byte XOR table1[address%8]) + table2[address%8] if the host key is 16 zero bytes, table1[x] and table2[x] are all 0x97.So i set the key to zero and simplified my decryption...
After some poking around it was sort of working - not entirely surprising since the timing for driving these displays is quite tricky sometimes.Unfortunately that questionable soldering did turn out to be a problem on some pins - while I think I’m getting...
The project heavily depended on Ben's original article and 3D printed parts including the motor holders and the pen gondola. It was never completely clear how the electronics were attached to the board in the original design. I've now merged some other...
Still Fixing the stuff I missed on last revisions.One of the more shameful mistakes was thermal design of main 5V buck. It could not deliver 3A with temperatures I would consider reasonable. I kinda did not pay enough attention to small print in the...