Hi,

I am creating a medium sized CNC router, the table will have 1320mm x 1000mm (around 52" x 40"). My machining will be on aluminum and steel parts. I want to use coolant system with great flow.

The big problem is if I use wood for the table, even if it is waterproof, in a few weeks or months I will have problem with the large amount of liquid.
If I make an aluminum table, it will be very expensive in my country. If I make a steel or granite table, it will be extremely heavy.

So after much research on the subject and reading various forum topics, I believe a table made of granite epoxy is the best option. I would like your opinion and how I could do with thread inserts.

I read in some topics that it is impossible to have a good fixation of thread inserts directly on the surface of epoxy granite, that the correct is to have a steel plate or aluminum inside the surface, is that correct? how should i do?

Something like that?


my cnc: