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It makes me so happy to read summaries of project like this. Thanks for sharing! I did almost the exact exercise a couple of years ago, except hand soldering th
by okamiueru 3y ago
It makes me so happy to read summaries of project like this. Thanks for sharing! I did almost the exact exercise a couple of years ago, except hand soldering the controller board together with an ESP32. It was an Core XY design with timing belts, also completely over-engineered. It suffered from hysteresis from too many plastic 3d printed parts (I only had belts, steppers, linear rails, and ball bearings). Would love to do it again some day, but properly. Definitely going for a pre-built CNC controller board, as that was a pain. P̶e̶r̶h̶a̶p̶s̶ ̶a̶ ̶M̶a̶c̶h̶3̶ ̶o̶r̶ ̶M̶a̶c̶h̶4̶ ̶b̶o̶a̶r̶d̶ Probably just make a PCB version, unless anyone know of a general ESP32 based 3-axis GRBL board with SD card?
- wdfx 3y agoGrbl on esp seems to be not really a thing. You can however go the Arduino nano and el-cheapo CNC board + drivers for less than $20 or so. You can usually also plug in an Hc-05/hc-06 Bluetooth module if you want it wireless. Beware that some of the cheapest CNC boards may have some dodgy wiring on the MS lines https://youtu.be/U839EbPw-A8?si=0SvVgZL0tX3j4P4K https://youtu.be/U839EbPw-A8?si=0SvVgZL0tX3j4P4K I've just completed a project using these parts https://doug.lon.dev/2023/09/19/astro-camera-mount.html https://doug.lon.dev/2023/09/19/astro-camera-mount.html
- deleted 3y ago[deleted]
- hugs 3y ago"Grbl on esp seems to be not really a thing." Grbl on ESP32 absolutely is a thing. I've been using it to drive my robots for years. https://github.com/bdring/FluidNC https://github.com/bdring/FluidNC
- wdfx 3y agoOh that's interesting, I didn't seem to find that when I was researching my project. Definitely worth a look.
- dekhn 3y agoFluidNC on a Bart Dring board: https://www.tindie.com/products/33366583/6-pack-universal-cnc-controller/ https://www.tindie.com/products/33366583/6-pack-universal-cn... I used this with external stepper drivers to power NEMA23 axes.
- okamiueru 3y agoThanks. I believe that's more or less the board I soldered together by hand. Or, perhaps a somewhat simpler version. Back then I don't think FluidCNC existed, it was just a grbl build for esp32. Edit: It was this board https://www.tindie.com/products/33366583/grbl_esp32-cnc-development-board-v41/ https://www.tindie.com/products/33366583/grbl_esp32-cnc-deve... I soldered manually. Same developer though.