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Jayne :wales_flag:🇪🇺🏳️‍🌈 boosted
johnsonfarms.us
@johnsonfarms@mastodon.social  ·  activity timestamp 3 days ago

Made a pen plotter for under $20 and some 32 printed parts. It serves up a whole web server, just connect, draw, and plot. No drivers or installs for the user, just open a browser. Full writeup here https://hackaday.io/project/204593-pen-plotter-esp32 #cnc #3dprinting #esp32 #penplotter #stem

Pen Plotter ESP32

This is a simple 3d printed pen plotter that broadcasts a wifi network with web server that fully houses the whole interface. So anyone with wifi and web browser can use the device. The plotter runs custom firmware on an ESP32 and serves up a simple MS Paint-style web interface. A lightweight custom firmware directly controls three 28BYJ-48 stepper motors through ULN2003 drivers. The entire web interface is embedded in the ESP32's flash memory - no SPIFFS, no external files. The firmware includes a simple G-code parser that handles the basics. Touch-friendly controls let you test motors, home axes, and manually raise/lower the pen. The total cost is under $20 with 3d printed chassis. Perfect if you want a simple WiFi plotter without the complexity of full CNC firmware. **Work in progress, I will be making updates**
Image of a smiley face on a piece of paper in a pen plotter cnc machine. There is a phone adjacent to the paper with the same smiley face drawn on an interface.
Image of a smiley face on a piece of paper in a pen plotter cnc machine. There is a phone adjacent to the paper with the same smiley face drawn on an interface.
Image of a smiley face on a piece of paper in a pen plotter cnc machine. There is a phone adjacent to the paper with the same smiley face drawn on an interface.
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johnsonfarms.us
@johnsonfarms@mastodon.social  ·  activity timestamp 3 days ago

Made a pen plotter for under $20 and some 32 printed parts. It serves up a whole web server, just connect, draw, and plot. No drivers or installs for the user, just open a browser. Full writeup here https://hackaday.io/project/204593-pen-plotter-esp32 #cnc #3dprinting #esp32 #penplotter #stem

Pen Plotter ESP32

This is a simple 3d printed pen plotter that broadcasts a wifi network with web server that fully houses the whole interface. So anyone with wifi and web browser can use the device. The plotter runs custom firmware on an ESP32 and serves up a simple MS Paint-style web interface. A lightweight custom firmware directly controls three 28BYJ-48 stepper motors through ULN2003 drivers. The entire web interface is embedded in the ESP32's flash memory - no SPIFFS, no external files. The firmware includes a simple G-code parser that handles the basics. Touch-friendly controls let you test motors, home axes, and manually raise/lower the pen. The total cost is under $20 with 3d printed chassis. Perfect if you want a simple WiFi plotter without the complexity of full CNC firmware. **Work in progress, I will be making updates**
Image of a smiley face on a piece of paper in a pen plotter cnc machine. There is a phone adjacent to the paper with the same smiley face drawn on an interface.
Image of a smiley face on a piece of paper in a pen plotter cnc machine. There is a phone adjacent to the paper with the same smiley face drawn on an interface.
Image of a smiley face on a piece of paper in a pen plotter cnc machine. There is a phone adjacent to the paper with the same smiley face drawn on an interface.
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GhostOnTheHalfShell boosted
paulrickards
@paulrickards@mastodon.social  ·  activity timestamp 6 days ago

Your periodic reminder that there were typewriter pen plotters. Yes, a typewriter that would draw text. Or a plotter with a keyboard attached, depending on your view.

I've collected a few, plus other oddities with pen plotters in them. Have a look:

https://biosrhythm.com/?p=2143

#RetroComputing #PenPlotter

A typewriter pen plotter with paper inserted in front of the keyboard. A stylized drawing of Magritte's 'The Son Of Man' is drawn on the page.
A typewriter pen plotter with paper inserted in front of the keyboard. A stylized drawing of Magritte's 'The Son Of Man' is drawn on the page.
A typewriter pen plotter with paper inserted in front of the keyboard. A stylized drawing of Magritte's 'The Son Of Man' is drawn on the page.
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paulrickards
@paulrickards@mastodon.social  ·  activity timestamp 6 days ago

Your periodic reminder that there were typewriter pen plotters. Yes, a typewriter that would draw text. Or a plotter with a keyboard attached, depending on your view.

I've collected a few, plus other oddities with pen plotters in them. Have a look:

https://biosrhythm.com/?p=2143

#RetroComputing #PenPlotter

A typewriter pen plotter with paper inserted in front of the keyboard. A stylized drawing of Magritte's 'The Son Of Man' is drawn on the page.
A typewriter pen plotter with paper inserted in front of the keyboard. A stylized drawing of Magritte's 'The Son Of Man' is drawn on the page.
A typewriter pen plotter with paper inserted in front of the keyboard. A stylized drawing of Magritte's 'The Son Of Man' is drawn on the page.
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