When using the svg, after importing select the rectangles and set the desired width that’s suitable for your material. I wouldnt suggest using xcs for it bc you cant control in wich direction the size will be changed and you do the want them be moved.

After changing the width of all select the part by each with theor black rectangles and substract them to get your sliding parts.

Red = Cut

Green = Engrave

You need to just lide all parts together and if you like glue them as well.

And now you have your brush / pencil holder. 

I hope you liked it! ~Anzy