Fiddle
February 28, 2022, 9:06pm
#1
I used all parts from Sienci Labs and modeled my CNC router after the Longmill 30 x 30, I need to change the preset to a 48" x 48" cutting area.
Fiddle
Andy1
March 2, 2022, 2:02pm
#2
Hi
For a Longmill , these settings can be changed using Gsender , under the heading Firmware.
Assuming you have read and have a clear understanding of the following
## Getting Started
First, connect to Grbl using the serial terminal of your choice.
Set the baud rate to **115200** as 8-N-1 (8-bits, no parity, and 1-stop bit.)
Once connected
you should get the Grbl-prompt, which looks like this:
```
Grbl 1.1d ['$' for help]
```
Type $ and press enter to have Grbl print a help message. You should not see any local echo of the $ and enter. Grbl should respond with:
```
[HLP:$$ $# $G $I $N $x=val $Nx=line $J=line $SLP $C $X $H ~ ! ? ctrl-x]
```
The ‘$’-commands are Grbl system commands used to tweak the settings, view or change Grbl's states and running modes, and start a homing cycle. The last four **non**-'$' commands are realtime control commands that can be sent at anytime, no matter what Grbl is doing. These either immediately change Grbl's running behavior or immediately print a report of the important realtime data like current position (aka DRO).
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These are the settings for machine extents
$110, $111 and $112 – [X,Y,Z] Max rate, mm/min