Well
AndersI that's just LED lights first of all not putting any real heat. I believe my hands touching the parts, puts of more heat than that actual light could.
Well I haven't checked it with an actual Temp. gauge, but I always check results from the 2 machines, running same part, same program, my 7-10-7 doesn't have a light on it. Worst reading I have gotten between the machine in difference .005 mm or .0002 in. I believe that's pretty darn good in casting.
AndersI