Printed on the Ender 3 S1 that I have been fighting with for a month trying to tram the bed. Bought some glass to and shimmed it with 3M metal tape it now prints but the bed is too hot so went looking for something to help protect my tender pinkies and finally settled on the above. Prints nice fits below the longer S1 bed springs. As you can see I've done some other mods. I will have to track all of those down an post them