We are in the NW of England and are a small business who have the patent for some lighting technology. We are doing some additional research into the technology and I need to be able to measure the Ra Value of some drilled acrylic rods, before and after modification.
As you can probably imagine, surface roughness measuring equipment is not something we use normally. I don't really want to buy a piece of equipment which will probably be used for this experimentation and then never come out again.
If anyone has a piece of kit to measure Ra which I could borrow for a day or 2 I'd be very grateful! Failing that does anyone have any idea where I could hire one from?
I am also trying some of our suppliers but struggling to find someone...