Our Advanced Slicing Algorithms are the heart, and most important thing of the MINImill- Controller. They enable our slicer to find the perfect path to mill a 2D or 3D part. Our algorithms are self-learning, so the more files are made with all the MINImills out there, the better they get, which is an advantage for all our customers!
Traditionally a CAM-Software is used to generate a GCode from a 2D or 3D file which is then used to control a CNC-mill. A lot of experience and deeper knowledge of the process of CNC-milling is needed to be able to generate efficient GCode that does not contain any errors, which can lead to damaged tools or workpieces.
Automatic Tool Length Probing
Automatic Tool Length Probing enables your MINImill to always know exactly where the tip of the tool is. You don’t need to measure the length of the tool, or manually find the surface of the part. MINImill uses this function every time the tool is changed, thus reducing the time spent milling.
Automatic Tool Probing helps you to always start the milling process perfectly on the surface of the material.
The time consuming and error prone process of finding the parts surface is now a thing of the past!
Advanced Surface Calibration
MINImill uses Advanced Surface Calibration to ensure that your PCBSs always turn out perfectly!
To make this possible MINImill uses the tip of the engraver to measure the height of the PCB all across the area, were it is going to mill. The measured points are then used to generate a virtual and perfectly flat copy of the real PCB. All of this is done automatically, so you don’t have to worry about anything. Just start the process, and watch your MINImill do all the work!
The copper layer on standard-PCBs is extremely thin typically only 35µm! To get reliable results the engraver has to mill through the whole copper layer, but also not to much. As the engraver is not cylindrical the deeper the cut is, the wider it gets. So if you mill too deep the traces get narrower, or are milled away completely, if you don’t mill deep enough the traces are not isolated properly.
Advanced Safety Features
While designing the MINImill we were extra careful to make sure that everything is as safe and easy to use as possible. The only visible button on the MINImill is the red “STOP” button, which is used to stop the MINImill in case anything goes wrong.
The reason that there are not more buttons, as one often can see on bigger mills is that we wanted to keep everything simple and safe.
Another very important safety feature is the Safety Switch, which is located on the door. So if you open the door, the stepper motors are stopped, and the spindle is switched off. To continue the milling process you need to close it again, and unpause it in the software.
We also limited the torque of the stepper motors, so in the event of some (very unlikely!) malfunction nothing serious can happen, because the torque is not high enough to do any damage to you or your MINImill!
Also, the software checks all steps before executing them, so errors can be prevented from the start.
Industrial grade components
MINImill is built to last. We only use high precision parts to build the machine as durable and rigid as possible, while still maintaining a reasonable size. This gives MINImill the ability to precisely cut your PCBs and prototype parts.