## characterize your laser cutter, making test # Author : seunghwan-ji ![photo of laser](img/group/week4-group/1.jpg) This is our laser cutting machine that we use. K2C-X which is local brand. It's software is golden laser cut&scan control application ![setting zero height-1](img/group/week4-group/2.jpg) ![setting zero height-2](img/group/week4-group/3.jpg) It shows how we set the laser height. Put acrylic cylinder on top of the material and release bolt to move the laser machine head gently. <br> You should remember to fasten to fasten the bolt. ![kerf test-1](img/group/week4-group/5.jpg) ![kerf test-2](img/group/week4-group/6.jpg) We draw testing template using Rhino and Fusion 360 like above to measure the kerf value and to determine how power and speed values affect the outcome. ![test value-1](img/group/week4-group/4.jpg) ![test value-2](img/group/week4-group/7.jpg) Out test materials : <br> acrylic 3.3T, MDF 3T and corrugated cardboard 4.5T <br> Seunghwan tried different cutting values and Sunghyun tried cutting and both engraving values. <br> ![result-1](img/group/week4-group/10.jpg) ![result-2](img/group/week4-group/14.jpg) These are our results.<br> Ideal values for cutting acrylic 3.3T is 10/50<br> Ideal values for cutting corrugated cardboard 4.5T is 30/60<br> Ideal values for cutting MDF 3T is 25/80<br> Even at the same power, they didn't get cut off at faster speeds. <br> we found out as the power gets higher , the 'KERF' value increases ![cardboard result](img/group/week4-group/9.jpg) Our corrugated cardboard got burnt at the back with value 10/100. ![engraving result](img/group/week4-group/12.jpg) And engraving depth is getting deeper. <br> Now we understand why it is (almost) impossible to make right depthness with laser