Remora - ethernet NVEM / EC300 / EC500 cnc board

frayja2002 wrote:

Hi all

I have a machine that requires some faster step generation, so I was thinking to try out the RT-1052-cpp branch on my EC500, but I see that the latest firmware is remora-rt1052-1.1.0.bin which is about 3 months old.

I was wondering what the current state of this software branch is & if that is the best firmware to use.

I'm not particularly technical & we are now up to almost 130 pages of reading.
Would it be possible to get a quick summary of the state of affairs. (what works & whats still changing)

I know there was talk about faster clock speeds but I seem to have lost that in the woods.
What is the best way to get the higher speeds while avoiding the dreaded joint following error?

Thanks in advance.
Alex

oficinerobotica wrote:

@GeramyL The issue of steppers randomly changing direction exists for me also. I'm getting close to a working wiring and LCNC configuration so the quantity of info to be processed is a bit overwhelming for me and thought it might be something about my config.

In my case I have tandem Y axis. What I observed is that, in between restarts of LCNC when homing , the Y motors will sometimes spin in the same direction then randomly, restarting LCNC will spin in opposite direction. This is whibought power cycling the board. Using the latest binary DMA firmware.

I also have some perplexities about the I/O pin numbering. But for that I'll get back with a video. For me it seems that one can make no assumption about order of pins or number between what is physically  written on the case of the board and how hal pins are ordered or named as displayed on the pc. Using hal_meter and a bit of trial and error one can get around that. Perhaps I need a correct EC500_DMA_config.txt ?

And lastly, what i found really odd was this behaviour:
I used the first 4 stepper slots on the EC500 to wire the 4 motor drivers. Joint0 => slot 1| Joint1 => slot2 | Joint2 => slot3 | Joint3 => slot4
The output pins for the various joints are setted in the EC500_DMA_config.txt so if I want to output, for example,  Joint3 to slot6 that should never change.

Instead if I change the configuration of the machine in the .ini file from XYZ to XYYZ output slots WILL change. Output of a Joint will jump to another slot on the board. That should not be possible. Or am I missing something?

P.S. I can't thank you enough guys for the work on this board

"Thread": "Servo",
    "Type": "Digital Pin",
        "Comment":            "IN05",
        "Pin":                "P3_18",
        "Mode":                "Input",
        "Data Bit":            8,
        "Invert":            "False"

oficinerobotica wrote:

About theese entries in the config.txt . Where can I learn how to tune them? Is there a process to it?

"Step Length": 4,
"Step Space": 4,
"Dir Setup": 15

My motors are still not attached to the mill but they seemed allot smoother when attached to a mesa card. Now they make a totally different sound when they move. Perhaps I only need to tune those parameters right. Again, it's easier for me to be wrong than right so some advice is welcomed.