Grbl_Esp32
grblHAL
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Grbl_Esp32 | grblHAL | |
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10 | 5 | |
1,639 | 217 | |
- | - | |
0.0 | 4.2 | |
about 2 months ago | over 2 years ago | |
nesC | C | |
GNU General Public License v3.0 only | - |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Grbl_Esp32
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Inconsistent Gcode errors, not sure how to continue troubleshooting...
This post on github (https://github.com/bdring/Grbl_Esp32/issues/848) is exactly what I'm struggling with, but the recommendation is to update/change the firmware. I'm not sure how I can do that with the FoxAlien machine. gSender has a firmware flash option, but it does not have a profile for the FoxAlien 4040-xe, and "Generic CNC" didn't seem to change anything.
- Trying to figure out how MKS TinyBee controls stepper motors through a shift register
- image binarization
- How hard is it to build a diy cnc controller?
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Show HN: I built a CNC-machine from scratch, using 40x 3D-printed parts
I understand you put thought and time into your approach and it was a hobby to learn more abotu the process (and thus you know about MPCNC but decided to make your own). I've also build similar systems and I've learned some timesaving tricks that have paid off in terms of hobbyist enjoyment.
I really like buying the majority of the parts from a place like OPenBuildsPartStore, rahter than assembling frames from channel manually. Time/cost/quality tradeoff is hard to beat here.
I strongly recommend switching to Grbl_Esp32 https://github.com/bdring/Grbl_Esp32 with external controllers (this board https://www.tindie.com/products/33366583/6-pack-universal-cn... with these plugins https://www.tindie.com/products/33366583/external-stepper-mo... and these controllers https://www.amazon.com/STEPPERONLINE-1-0-4-2A-20-50VDC-Micro...). That's what I ended up with because tuning current using the little pots is dumb, and you want a TON of current going to those huge motors. ESP32 + Grbl has a bunch of nice features that aren't in plain old Uno GRBL.
My system has high torque NEMA23 with no gears (same motor for all 3 axes), I can't see any situations where adding more torque to the X or Y axes using a smaller gearer stepper makes sense.
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New electronic for K40 - Seamless integration - Lightburn compatible
I have developed a new electronic board for laser machines that is using the wonderful ESP32 GRBL firmware and so compatible with all GCODE software including of course Lightburn
- Looking to build my own CNC machine. Recommendations?
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Pen plotters: not just output devices
if you want to see how it's done in modern plotters/CNC, Bart Dring's [Grbl_ESP32](https://github.com/bdring/Grbl_Esp32) is fairly easy to follow with good docs. I have one of Bart's plotters, as I don't have space or money for an Axidraw with all my other old plotters around the place.
For actual optimization of input files, [vpype](https://github.com/abey79/vpype)'s the one most people use.
Going back to really old/simple plotters, there wasn't enough code space to do any optimization. For example, the (fairly terrible) Commodore 1520 roll paper plotter had 2KB of ROM for all the 6502-compatible code its micro-controller used. When I first looked into the [firmware](https://e4aws.silverdr.com/hacks/6500_1/), I was pretty shocked that it printed text by scanning a table of character data from the start every time. Then I realized that even storing pointers for each character would use up about ⅛ of total storage, and the mechanical plotter mechanism was always way behind anything the code could do. So small mattered more than efficient
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Jello 3D Printer
Yup, and some modern steppers have this: https://github.com/bdring/Grbl_Esp32/wiki/StallGuard-Setup-a...
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Diy Cnc Controller Options
this fork is much more capable https://github.com/bdring/Grbl_Esp32
grblHAL
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$38
https://github.com/terjeio/grblHAL/blob/master/doc/markdown/settings.md check this link there is an explanation of grbl code from A to Z
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Electronic leadscrew, or full CNC?
And it looks like pendant support was 'enabled' last year in grblHAL, but I don't see the "I'm with stupid guide" that I would need to connect it.
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General question: Why use an old LPT interface with so many open source controller available?
If you have time, check it out! https://github.com/terjeio/grblHAL/
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Budget budget CNC controllers - what's the bottom line?
You might want to look at grblHAL. It is the 32-bit evolution of Grbl. I make a 5 axis breakout board for it based on a Teensy 4.1. It supports step rates up to 400 kHz which allows you a lot of freedom in selecting microsteps and high speed rapids. All in with the Teensy, it costs about $65-70, depending on options. Here is a gallery with a number of machines based on grblHAL. More about grblHAL here. It is actively being developed with people adding features and porting to new processors (RaspBerry Pico is coming).
What are some alternatives?
K40-GRBLcntrlr - K40 ESP32 GRBL Controller
grbl-L-Mega - An open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on an Arduino Mega2560. Forked from GRBL modified for use on a lathe with spindle sync threading
GRBL-Pendant-with-LCD - Arduino UNO or MEGA Pendant with LCD for GRBL 1.1f (Jog X Y Z and send any Command while connected to PC simultaneously)
grbl-Mega-5X - 5/6 Axis version of Grbl, the open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on an Arduino Mega2560
cncjs - A web-based interface for CNC milling controller running Grbl, Marlin, Smoothieware, or TinyG.
FluidNC - The next generation of motion control firmware
ODrive - High performance motor control
uCNC - µCNC - Universal CNC firmware for microcontrollers
FastAccelStepper - A high speed stepper library for Atmega 168/328p (nano), Atmega32u4, Atmega 2560, ESP32, ESP32S2, ESP32S3, ESP32C3 and Atmel SAM Due
libopencm3 - Open source ARM Cortex-M microcontroller library
vpype - The Swiss-Army-knife command-line tool for plotter vector graphics.
LPC176x - grblHAL driver for LPC1968 and LPC1769