Hi All
I'm designing a router/VMC with the idea to work steel. Unfortunately my only option is aluminum t-slots, which is not ideal. At least I have the option to choose some heavy duty t-slots like 80x80mm or 90x90mm
- My first question is: Since aluminum isn't stiff enough is it a good idea to fill the inner space of every t-slot with epoxy granite.
- Second; Would you recommend building the machine out of pure epoxy-granite castings. Considering the size I'm concerned about the machine being unmovable .
- Third. my main concern about the EG filled t-slots is the difference in temperature expansion rates of EG and aluminum. I think that it's possible that the temperature expansion force of the aluminum might exceed the tensile strength of the EG (which of course is limited) and thus form cracks in the EG.
How do you guys think?
Thanks a lot in advance.