December 12, 2019

233 words 2 mins read

bdring/midTbot_esp32

bdring/midTbot_esp32

A Small and Simple Pen Plotter

repo name bdring/midTbot_esp32
repo link https://github.com/bdring/midTbot_esp32
homepage
language
size (curr.) 33036 kB
stars (curr.) 337
created 2019-07-21
license

MidTBot ESP32

The MidTBot is a small and simple little pen plotter. All of the custom parts are 3D printed. The rest of the parts are low cost and easy to get.

The controller uses an ESP32 running Grbl_ESP32 firmware. It can be controlled via USB, Bluetooth or Wifi. You can simply upload gcode files to the unboard SD card and print.

The machine is controlled by a unique H-bot configuration, that uses a single belt. Two small stepper motors drive that belt in a special way to move in the X/Y plane. The pen is lifted by a hobby servo using a very simple and accurate mechanism.

Here is a link to a video of the plotter in action.

The project is open source (Creative commons 4.0 Attribution - Share Alike) and all the files are in this Githob repo. Assembly instructions are here. If you have questions, please ask them by opening an issue in this repo.

Check it out on GrabCad

Click on image for interactive viewer in browser.

GrabCAD

Kits

There currently are no full kits for sale. Controller kits are available on Tindie.

Donation

This project represents a lot of work. Please consider a safe, secure and highly appreciated donation via the PayPal link below.

comments powered by Disqus