Hi Folks, I’m just learning my way around grblHAL and the SLB. I’m coming from a grbl environment. In grbl, if I issue a setting change, like $20=0 in the console, that change is permanently set. In other words, when power is cycled on the board, the setting change remains. When I’m trying this fro…

Ohhh @wiremonkey yes @jpnharris would be correct. If you’re experiencing Firmware settings grayed out then that means the machine is in an active Alarm state. For both grbl and grblHAL boards their firmware values can’t be changed while alarmed even if it seems like they can be I’d advise clearing …

That seems a bit odd, if you have the SLB EXT from the AltMill I’d have to test out what’s going on there since to my knowledge changing $20 on the regular SLB would retain that setting once you’ve changed it. Otherwise, to answer your question there shouldn’t be any other quirks to changing settin…

I looked at the box. It does say, “SLB-EXT.” I tried again this morning. Manually setting $20-22 to 0, confirmed the settings were applied. Then power cycled the SLB-EXT and these settings reverted back to the firmware defaults, which are $20=1, $21=1, $22=79… I don’t know if this makes a differenc…

Chris, Maybe I should try and flash the firmware? See if that makes a difference? Otherwise, shall I open a ticket and have a replacement sent out? I’m getting close to needing this machine up and running. I’m assuming that you folks haven’t seen this issue before? I’m happy to try whatever you su…

I have found that on my SLB that if a make a change it will not stick or even save if there is an error code showing. Suggest you revisit this once you are able to clear all error codes (get machine set up completely).

Thanks for this. This must be the problem.

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$ setting changes not revert back after SLB power cycle

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