For the last 6 months, we have been using the Z-Ultrat in our 5 m200 plus printers in our school STEM program but we have just recently started to look at some other materials. We are trying to print with an external PLA material however we are having trouble getting the first layers to stick to the build platform. Having checked the settings in ZSuite for external PLA it looks like the platform should be at 25 deg Celsius but is heating to between 40 and 50. The extrusion temperature in ZSuite is well within the range as that suggested by the manufacturer. I have the feeling it is not sticking as the build platform is too hot but have not been able to find a way to turn it off. However, there also may be something that I am not thinking of.