Print with 2 materials : ABS and TPU95 - Ultimaker S5 in Materials Posted March 13 I have successfully printed toothed belts of TPU with 'buckets' of ABS attached at intervals - see https://www.thingiverse.com/thing:3472635. The stl files are "Belt_for_buckets_21.stl" and "Buckets_21.stl". The buckets are mechanically locked to the belt, but much of the belt width is a continuous circle. The buckets seem to weld to the belt well. I have found that very thin sections of TPU are not a good idea - you could try making the TPU nodes of your mesh larger. Try putting small holes/slots near the ends of the links, and have these embedded in the TPU modes.