spec-care

i have had soime problems getting good transparency from my printed parts on the ultimaker 3.i have been using the ultimaker 3 with colorfabb ngen in an open office enviroment The intial settings where, temp-235 which i decreased in stepsdown to 220. this improved result but stayed more white than transparent. plate temp at 70 intially but heated to 80 by the final attempt. flow rate-130%, fan 50% tried with and without.layer height intially 0.08mm but in final attempt 0.16mm. printed at 40mm a second. despite playing with these settings i cannot get a satisfactory transparency. does anyone have any different suggested settings to print at? . i also have the HT from colorfabb which i will try tomorrow.