On 6/13/21 2:49 PM, Feral Engineer wrote:
Anyone trying to push a grbl box over Linuxcnc clearly has their head in a
rather unmentionable place.
As someone who has worked in the machine tool industry for nearly 2
decades, I've found Linuxcnc to be comparable to many "industrial" grade
controls, like fanuc, mitsubishi meldas and siemens from both configuration
and operation standpoint.
No CNC control is perfect, but the countless hours the developers have put
into lcnc out of their sheer dedication to the product shouldn't be written
off and for a feature that isn't yet implemented, the openness of the
software allows you to choose your own destiny with how you want it to look
and operate.
Show me grbl support for PLC/ladder, show me grbl support for 5 axis
kinematics or ATC circuits, show me grbl support for any code that ventures
away from G0 and G1.
The only issue I've had with the Rpi4 with 2Gb or 4GB of RAM has been
with stable 4K video using the LCNC Buster ISO or Raspian. It might be a
lucky combo of cables and monitors that cause the video to lose sync
every now and then. But when I try to use it with a 4K projector for DLP
resin printing the loss of signal for even a second triggers the
firmware in the projector to display text on the projector that signal
was lost and then display the projector brand, which in turn ruins the
print since the display is the tool.
The problem went away when I used a Gentoo image for the Rpi4
https://github.com/sakaki-/gentoo-on-rpi-64bit
I didn't compare all the differences between the drivers and configs for
Gentoo vs Buster and Raspian to see what the Gentoo dev was getting
right. It might have even been its firmware settings.
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