In this guide, you will learn how to adjust your acceleration settings on your Mill One to “overclock” your machine and reduce your milling times.
Before you begin
To understand why one would want to adjust these settings, we must first discuss the importance of acceleration settings on the Mill One and CNC machines as a whole. Every time a CNC machine changes direction or makes a movement, it changes its velocity gradually. This is to prevent the machine from damaging itself or losing its position. The faster a CNC machine accelerates, the more likely it is to experience these problems.
So, why not set the acceleration settings to the lowest possible number? Having a slow acceleration means that more time is spent changing the machine’s velocity, slowing down the overall cutting process. We must choose a setting which offers reasonable milling speeds, but also does not damage the machine or cause it to lose steps.
The default speeds of the Mill One have been set to be relatively slow, to ensure the safety of the operator. For more advanced users, we recommend increasing your acceleration settings to allow your machine to go faster.
How to change your acceleration settings
Changing acceleration settings on your Mill One is extremely easy to do, especially with Universal Gcode Sender or UGS Platform. First you must access the firmware settings.
For Universal Gcode Sender, from the upper left hand corner, click Settings -> Firmware Settings
For UGS Platform, from the upper left hand corner, click Machine -> Firmware Settings
This will bring up a window that looks like this:
Scroll down to the bottom until you can see the acceleration settings
From here, you can change the values for the X-axis, Y-axis, and Z-axis accelerations.
We recommend starting with 50mm/sec^2 on the X and Y-axis, and 20mm/sec^2 on the Z-axis. Once you have made the changes, click save. Then close the window. If you get an error message, we recommend closing and opening the connection to the machine and trying again.
If you’re interested in making other changes to your firmware settings or want to learn more, check out the Grbl configuration guide here: https://github.com/gnea/grbl/wiki/Grbl-v1.1-Configuration.
Another way to change acceleration settings
We’ve created two gcode files that you can run on your machine that will automatically change your acceleration settings.
The file “New acceleration settings for Sienci Mill One.nc” will change your acceleration settings to 50mm/sec^2 on the X and Y-axis, and 20mm/sec^2 on the Z-axis.
The file “Default acceleration settings for Sienci Mill One.nc” will change it back to default settings.Download Acceleration Setting Changing Gcode Files
Simply choose the settings you want, and send the gcode to your Mill One.