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The Crafsman - ESP32 Mini SCARA Robotic Arm Postcard Plotter
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It's a ESP32 Mini SCARA Robotic Arm Postcard Plotter Homework Writing Machine Pen Plotter Thing.
At any rate... Finally. This is V1.0 of Posty, the ESP32-powered, all-WiFi, mini-S.C.A.R.A Postcard Plotter. This is made from MDF and readily available (and pretty cheap) parts so that anybody can duplicate it. Vast improvements since the Posty introduction video.
More info to follow, but for now...
This is a SCARA (Selective Compliance Assembly Robot Arm or Selective Compliance Articulated Robot Arm) robotic arm. It is powered using an ESP32 and fed data via WiFi on my local router. It uses 2 6V NEMA16 stepper motors with 15 tooth GT2 pulleys, and one 15mm 5V stepper that turns a cam to lift the pen. Motors are controlled by 3 stepstick-style a4899 motor controllers. I wrote all the software, including the kinematics (which are quite simple) in Python3 and Micropython. Most if the computations are done on the desktop, and then control bytes are sent to the ESP32. I have a built-in font, and I can run basic gcode. So the images I'm drawing go from raster to vector graphics to gcode to Posty.
That's all for now.
At any rate... Finally. This is V1.0 of Posty, the ESP32-powered, all-WiFi, mini-S.C.A.R.A Postcard Plotter. This is made from MDF and readily available (and pretty cheap) parts so that anybody can duplicate it. Vast improvements since the Posty introduction video.
More info to follow, but for now...
This is a SCARA (Selective Compliance Assembly Robot Arm or Selective Compliance Articulated Robot Arm) robotic arm. It is powered using an ESP32 and fed data via WiFi on my local router. It uses 2 6V NEMA16 stepper motors with 15 tooth GT2 pulleys, and one 15mm 5V stepper that turns a cam to lift the pen. Motors are controlled by 3 stepstick-style a4899 motor controllers. I wrote all the software, including the kinematics (which are quite simple) in Python3 and Micropython. Most if the computations are done on the desktop, and then control bytes are sent to the ESP32. I have a built-in font, and I can run basic gcode. So the images I'm drawing go from raster to vector graphics to gcode to Posty.
That's all for now.
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