This obj file is not good in Lightwave, take a look at here please:
Can you please export it to an obj that have the numbers and measure lines somehow defined so I can make them black. As you see from my lightwave modeler print screen; it is quite hard for me.. Thanks in advance!
I get the obj file using eport in Keyshot. I do not work directly with such format. But I can increase the depth of scale scratches if it will help.
p.s. Can you use another format such as step or iges? May be there you can save colors?