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error 8 lightburn

12

Okay the main difference is the PWM frequency. On the legacy Gerbil, it is set to 250Hz ($28=0 default). The Mini Gerbil uses 1kHz ($28=5 default) so maybe try to use a lower frequency? $28=2 or 3? Note that the frequency settings are 0,1...15 are different on the legacy product. Cheers!

Cheers, Paul awesome.tech

I have the same problem, I replaced the sensors but I still get the same error message.

Grbl 1.1e ['$' for help]

[MSG:'$H'|'$X' to unlock]

[MSG:Caution: Unlocked]

ok

?

<Idle|MPos:2.500,2.500,0.000|Bf:15,127|FS:0,0|Pn:XYZ|WCO:0.000,0.000,0.000>

ok

27 $ = 2.5

error:1

If I use the first version of the gerbil or original card of the same problem.

Hi Sergio, it is most likely that the limit switches don't clear because of their long hysteresis distance (distance between the on/off engagement points) .

I see from the photo that you tried to change it via 27 $ = 2.5 which should be $27=2.5 or in case of a longer hysteresis loop make it $27=4

In addition you can check whether the switches work via the status command '? <enter>' and placing the gantry in and outside the zero position.

Good luck and let us know if that helped.

Cheers, Paul awesome.tech
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