my ultimaker is about 10jaar old now and its time for somthing new. So started with MK2.5 upgrade it to MK3 with a the MMU, it worked nicely......then it became an MK3S mk4 en MK4S. now its time for core one L and hopfully soon with a bondtech indx..........nice big prints 10 colors, or wishful tinking....we will see