What Does 'Laser Parameters' Mean?
Optimal laser parameters for CO2 laser engraving & cutting applications
'Parameters'... The power, ppi, Hz, pass, Air Assist and Z-Offset. But what does any of that even mean?
Power & Speed Parameters
PPI & Hz Parameters
The PPI (pulses per inch) parameter determines how many laser pulses are being fired per inch of engraving. To achieve a good result, this really should be the same / a multiple of the dpi setting that is selected in your print setting. In Ruby® the PPI settings are adapted to the DPI settings automatically. If you set this parameter to 'Auto', JobControl will automatically determine the optimal resolution for your laser pulses.
During the cutting process, the Frequency parameter is recognised and displayed to you in Hz (Hertz). This specifies the number of laser pulses per second. Usually, for a CO2 laser, the value can be set within a rough range of 1,000 to 60,000 Hz. For example, if you wanted to achieve a smooth, polished edge when cutting acrylic, you'll need to be using a higher temperature. That means the value needs to be set to at least 5,000 - 20,000 Hz. However, when cutting wood, a low frequency of something like 1000 Hz is necessary to achieve a bright, perfect cutting edge.
Air Assist Parameter
Helpful Hints for Determining Laser Parameters
Still wondering how to quickly and easily determine the optimal laser parameters for your material? Here, we have summarised some tips and tricks for you to try out.