Mantis

These 3D printed resin key caps work well. The small Choc stems turned out very solid with no concerns of breaking off during installation or removal. Dimensions are accurate. The small hexagonal holes on the back side are reproduced very well and have the intended effect of letting more backlight through. However the material is translucent enough that this would not have been strictly necessary. The hexagonal outline turned out slightly rounded on some keys, indicating slight warping. Not a problem in practice as it does not affect fit with neighboring keys or the switches. There were a few remains of support where the key mates with the switch stem that were easy to scratch off with my thumb nail. The dish surface has uneven layer marks that are only visible when looking very closely. To the touch they feel smooth with a somewhat rough texture similar to PBT key caps. After a month of daily use there is no obvious sign of wear.