2 layers45.7 × 31.8 mm
LEDx16 board
tardate/LittleArduinoProjects
a collection of "Little Electronic & Arduino Projects", most involving electronics or an Arduino in one way or another!
36 parts803MIT
2 layers63.4 × 89 mm
PCBEasyEDA
ChowderNZ/CHW-IP8-27G-EXP2An open source inktank color printer + nozzles!
- Size
- 63.4 × 89 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 56
- Nets
- 57
- Pads
- 144
- Tracks, vias
- 428, 28
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 23 Aug 2026
- Updated
- 29 Sep 2026
Overview
PCBEasyEDA is an open-source printed circuit board by ChowderNZ, from the ChowderNZ/CHW-IP8-27G-EXP repository on GitHub, published under the AGPL-3.0 licence. It is a 2-layer board of 63.4 × 89 mm with 56 parts on 57 nets, routed with 428 tracks and 28 vias.
It is built around the IRL540NPBF-VB and 74HC595. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2README
README.mdCHW-IP8-27G-EXP
An open source inkjet color printer with a nozzle built from the ground up!
(Chowder Hardware Works-Inkjet Printer 8 Nozzle-27 gauge precision nozzles-experimental)
Printhead: PX8-20H-01
Manufacturer: Chowder INC
DPI: 1.5
yes i love naming things annoyingly
Overview
The CHW-IP8-27G-EXP is an inkjet color printer that can print at really bad dpi! But it does work! and i'm not using other people's nozzles, as I built my own from scratch!
Features
- Very replaceable (you can 3D print any non-electrical parts and to get replacements for any electrical stuff is very cheap!)
- Custom Nozzle
Full CAD
Here are the .stp files (THEY NEED TO BE PRINTED SEPARATELY) because stardance doesn't like .stl's
If you would like to recreate what I have done, use these files, or check out the .stls below if you would prefer them
Replacing parts (part of the Full CAD)
I know a lot of the parts may break, especially the nozzles which can be faulty, but you should be able to find replacement bits for almost anything below. These are all in stl format btw.
Older Models (part of the Full CAD)
Older models of most of the parts can be found in the cad folder. However, it is NOT recommended to use them. Please use the newest model (V4.5 for the nozzle, V1 for the printhead and V1 for the manifold).
How to print the printer (part of the Full CAD)
- Download the relevant files from the model files section above
- Print it on any 3D printer using supports. For the nozzle and the manifold, it should only generate supports for the piping. Not inside it. For the printhead, there should be no supports.
- Assemble using the guide (W.I.P)
This project was fit for a Bambu Labs A1 Mini, and a 0.4MM nozzle, but I assume it will work on anything else.
Technical details
The PX8-20H-01 contains 8 piezoelectric discs that move forward and backwards under high voltage, causing a membrane to push a tiny ink droplet out onto a page, hence the name - inkjet. A motor in the CHW-IP8-27G moves the PX8-20H-01 back and forth, meaning it can print anywhere on a page using its nozzles. It is 1.5 DPI
Model Names
- CHW-IP8-27G-EXP - Full printer assembly (Printhead, nozzles, feeders etc)
- PX8-20H-01 - Experimental nozzle (Newest model)
Datasheets
Logo
The logo was designed by me, and it has a pretty cool story!
I was originally going for a cool spiral sort of logo, where i made a bunch of circles that get increasingly smaller and change between black and white, but in canva, I highlighted the centre circle, and noticed that the select box looked warped for some reason. It reminded me of this optical illusion so i just stuck with it, and now it is the logo!
PCB
You can order the pcb from anywhere, but here are the files you'll need
You actually don't need most of these, just the gerber files for manufacturing. To buy the parts you'll need to solder on to the board, check out the BOM.csv
Extra thanks!
- Thank you so much to stardance for funding whatever this is! Y'all are the best!! Please keep doing what you're doing, and everyone WILL enjoy it!
- Also big thanks to YOUTUBE for hosting videos that i can watch to learn about printers (I knew nothing about them before this)
- Huge thanks to any teacher in my classroom that didn't tell me off for working on this during class time whoops
Parts
56| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100K1 | EasyEDA:0207x10 | 100K1, 100K2, 100K3, 100K4, 100K5, 100K6, 100K7, 100K8 |
| 8 | 1N4007 (DO-41) | EasyEDA:1N4007_(DO-41) | DIODE1, DIODE2, DIODE3, DIODE4, DIODE5, DIODE6, DIODE7, DIODE8 |
| 8 | IRL540NPBF-VB | EasyEDA:TO-220AB-3_L10.4-W4.6-P2.54-L | MOSFET1, MOSFET2, MOSFET3, MOSFET4, MOSFET5, MOSFET6, MOSFET7, MOSFET8 |
| 8 | Piezo+ | EasyEDA:THROUGHHOLEPIN | PIEZO+, PIEZO+1, PIEZO+2, PIEZO+3, PIEZO+4, PIEZO+5, PIEZO+6, PIEZO+7 |
| 8 | Piezo- | EasyEDA:THROUGHHOLEPIN | PIEZO-, PIEZO-1, PIEZO-2, PIEZO-3, PIEZO-4, PIEZO-5, PIEZO-6, PIEZO-7 |
| 8 | R-US_0207/10 | EasyEDA:0207x10 | 1K1, 1K2, 1K3, 1K4, 1K5, 1K6, 1K7, 1K8 |
| 2 | 100NF | EasyEDA:0207x10 | 100NF, 100NF2 |
| 1 | + | EasyEDA:THROUGHHOLEPIN | + |
| 1 | - | EasyEDA:THROUGHHOLEPIN | - |
| 1 | 10uF | EasyEDA:10UF 100V | 10UF |
| 1 | 74HC595_ | EasyEDA:74HC595 | 74HC595 |
| 1 | ARDUINO_NANO | EasyEDA:COMM-TH_ARDUINO_NANO | ARDUINO_NANO |
| 1 | Polyfuse | EasyEDA:POLYFUSE FOOTPRINT | FUSE1 |
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Questions
How big is the PCBEasyEDA PCB?
It measures 63.4 × 89 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PCBEasyEDA use?
56 parts, built around the IRL540NPBF-VB and 74HC595. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the PCBEasyEDA KiCad files?
From the ChowderNZ/CHW-IP8-27G-EXP repository on GitHub, at the commit this page was made from: the board is pcb/PCBEasyEDA.kicad_pcb and its schematic pcb/PCBEasyEDA.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PCBEasyEDA design in my own project?
Its repository publishes it under the AGPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).