It took much longer than I expected, but I've finally turned the pile of parts into a CR600S to conduct printing tests with the 4-in-1-out Machined Coaxial Hotend. Unfortunately, it lost against the leaks and the results I was able to get out...
The major parts have arrived and been tested. Found that the wireless charging module and coil get really hot (starts to soften the 3D-printed wall plate). Now I need to think of a clean way to manage this heat but I can't put a heatsink on the...
The posted schematic is the version I created a PCB design with, and sent to a fab company to produce samples of. Part designations will be referenced to this schematic unless a new design succeeds this version. The basic principle of this design is...
Hey those POGO pins aren't made to be soldered to! Get off my lawn!That's better.I decided to "upgrade" the heatsink. I got rid of the anodizing and used thermal paste instead of the pads. Sanded to about 5000grit.
First version of this tool consists of two 3D-printed parts: the top part holds the heatsink and UV LED, and provides some distance to the mask which will be placed in the bottom.The distance is needed to have the light spread evenly, as I'm using only...
I wanted to use a sharp UV point light source, so after going through various options I chose a module named EP-U4545R-A3_PCB. It is an LED already soldered to a star-type heatspreader. The specification is as follows:5W powerwavelength in 390-410nm...
The prototype is quite inexpensive:396nm 5W UV LED $5MT3608 Step-Up converter $21W 1Ohm resistor $0.1USB or barrel jack connector$145x45x10mm heatsink$33D printed case~$2 (filament)Magnets$1total$14.1It should be possible to build such a device...
This was the quickest way of getting a known-good reference machine. Alas it is not very hackable, because most of the logic is inside the ULA. It did come cased with a working membrane keyboard. I extended the connections to the keyboard using extra-flex...
First things first.I’ve started this project as I recently came across an old unused laptop (acer n15w4). This sparked an old idea I had; building a portable wii in the shell of a laptop.This log will describe some background information as well as the...
An Arduino ESP32 was setup using touchRead() in the main loop to toggle the onboard led and stream the read value out over Serial. A single 15mm x 15mm x 1mm pad was tested with dial indicator to get a feel for the trigger range. The led...
I'll put the cool part right up top: it works. (and i blew up zero mosfets in the process!)Version 0.2 boards arrived lookin' nice and spiffy. Everyone else I've seen who does a variant on this project uses a primary inductor made either of regular...
First Light accomplished. What did I learn?The circuit in its current iteration,1: gets hot alarmingly quickly2: is trying to draw more power than I can actually supply. Those seem related, yeah. apologies for the excessively american temperature...
Spent a big chunk of the weekend adjusting a variety of component values. Here's the waveforms with the circuit unloaded (no toroid), at 18V supply: Yellow is Gate (5V/div), purple is Drain (50V/div), blue is feedback network bias input at TP5...