3d printer tool head pcb
This is a work in progress and subject to change.
the problem
I really dislike most wiring solutions around 3d printer tool heads. I have tried connectors, pcb boards, and direct wiring harnesses. Each of these solutions has some advantages and disadvantages
learning to design pcb boards
Fortunately for me this design is very straight forward. I am going to dive in and mess it up a few times to learn.
reference videos
requirements
input
PCB | MCU | Wire Gauge |
24V | HE0 +V | 20 |
HE0 | Hotend Heater -V | 20 |
GND | PSU -V | 24 |
PROBE | Probe Signal | 24 |
PCF | Parts Cooling Fan -V | 24 |
HEF | Hotend Cooling Fan -V | 24 |
TH0 | Hotend Thermistor Signal | 24 |
AGND | Hotend Thermistor -V | 24 |
S1A | 24 | |
S2A | 24 | |
S1B | 24 | |
S2B | 24 | |
XES | X End Stop | 24 |
FS | Filament Sensor | 24 |
output
Output | Input |
HE0 | HE0 |
HE0 | 24V |
Output | Input |
TH0 | TH0 |
TH0 | AGND |
Output | Input |
HEF- | HEF |
HEF+ | 24V |
Output | Input |
PCF- | PCF |
PCF+ | 24V |
Output | Input |
GND | GND |
PRB | PROBE |
24V | 24V |
Output | Input |
GND | GND |
XES | XES |
Output | Input |
GND | GND |
FS | FS |
Output | Input |
S1A | S1A |
S2A | S2A |
S1B | S1B |
S2B | S2B |
attempt 1
The goal with this attempt is to familiarize myself with the tools and process, not to create a finished or working product. I mostly care about finding the right components and being able to manipulate them. I will work on what connections actually have to be made later.
