Grbl tests 2022

They seem to keep getting smaller with each update i do.

The WLED one has disappeared!

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What the heck, is there an icon zoom or something?

Wow - Iā€™m not getting mad - thanks!!

@vicious1 I donā€™t have a board to connect a debug probe and properly test this. I most probably will have to order myself one butā€¦If you want to give it a try also on the SKRā€¦

Added setups for SRK Pro 1.2 and MKS Nano 1.2 by Paciente8159 Ā· Pull Request #267 Ā· Paciente8159/uCNC (github.com)

The feedback I get from people using my firmware have been mostly on Mega boards (RAMPS, MKS Gen L) and Bluepill and Blackpill modules. These boards come with custom bootloaders and different oscillator crystals so Iā€™m not sure how this behaves.

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Okay. Anything in particular I am looking for or just go straight to the laser tests? I will say this week is going to be rough. Found some water leaking down the wall yesterday evening and I am taking my truck to the shop right now so the next few days I might be a littleā€¦unavailable.

So if I have not hit this by Thursday ping me about it again please!

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Sorry to hear about that. Hope you get everything in order soon.
No worries about tests.

And about testingā€¦ Iā€™m honestly more curious on how the firmware would perform compared to regular Grbl (AVR), specially with the 16-bit mode enabled that is specially targeted at laser.

Regarding boards I got a decent amount of tests on RAMPSā€¦ But not on RAMBOā€¦ Rambo have a couple of features other boards donā€™t have like the digital steppers or the digipot.

The SKR PRO again no tests. Only go to this one if you feel like it (due to the settings handicap explained below).
Iā€™ve made a basic configuration for it. All 6 stepper drivers and endstop pinouts, (including the serial pins used to configure TMC drivers via UART) like the TMC2208 and a couple of PWM.
I donā€™t have support on this MCU to store settings on the flash (due to the way the flash pages is built). At every power up the settings have to be loaded. I usually just do a $$ command, copy the values to an gcode file, edit them and then run that file load the settings.

In the mean time I will also add the fan pins configs since I donā€™t know how you got your board wired up. Iā€™m also trying to get the SD card module to be able to allow storing machine settings to a file.

Nope the icon is showing really small now

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After an intense battle against the SPI-SD card interface driver this finally seems to have seen the light. The commands are still a bit funky but itā€™s usable. At least boards without an EEPROM and SD card interface can store settings this way. This is also better for boards with emulated EEPROM in flash since this prevent Flash usage/wear.

Tested with success in both in 2 different MCU (the AVR (mega board) and the LPC1768 (Re-arm). Iā€™ll just add the SPI port pins configurations to both SKR and MKS boards.

Almost all buttoned back up. I hope none of that needs to be touched for another 30+ years.

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Regarding the topic of boards and headless solutions Mellow-3D seems to be adopting the ESP+Other MCU matting on their boards. In the case of Mellow they opted by STM32 as the controller chip.

One example is the FLY-CDY v3 and the Super8Pro.

Iā€™m also under the impression that all the brands are starting to show up with high end boards based on Cortex-M7 MCU like the STM32F7 but the prices usually are almost doubleā€¦ My real question is if it is worth the price difference??

Most laser and hobby CNC use belt systems that require lower step rates then ballscrew driven systems. It all boils down (IMHO) to an equilibrium of gcode transmitting/parsing speed and motion planner calculations/buffer size to allow speeds to reach the optimal speeds (how far ahead the planner can look to calculate the accelerations).

In short. I still have my questions were the real bottle neck is in terms of firmware vs hardwareā€¦

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Arrived on the mail today.
This is a tiny board indeed.

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Sweet, that almost looks like you could fit it inside the LR3 beam.

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I donā€™t need a new boardā€¦
I donā€™t need a new boardā€¦
I donā€™t need a new boardā€¦

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OOOOOoooooohhhhhHHHHH!

I checked. Itā€™s the same size of the MKS Gen L that is basically a RAMPS ina single board.

It even has a -u module with ufl connectorā€¦ I hope this board catches on well.

$30, not bad! https://www.aliexpress.com/i/3256803453770118.html?gatewayAdapt=4itemAdapt

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I have had a tinybee on one of my 3d printers for several months now without issues. The wifi file transfer is a little slow still but manageable. All that is needed now is MKS re-writing the firmware to accommodate one of their dumb TS35 screens with 3D printing, cnc and laser themesā€¦