(MAS)ⁿ, n ≤ 8

The description of a 3D printed magic angle spinning (MAS) stator capable of stably spinning single powdered solid samples in 4 mm diameter printed rotors up to 7 kHz in a benchtop magnet is provided. Experimental ⁷⁹Br nuclear magnetic resonance (NMR) results for up to n = 3 simultaneously spinning samples in one probe and one magnet are presented. Increasing the number spinning samples of the same material increases signal size as demonstrated for separate samples of powdered KBr and NaBr. Multiple sample access in one probe also allows for mixed sample studies in one experiment. This is explored with rotors separately loaded with KBr or NaBr inserted into one multiple spinner NMR probe. A stator design and print for spinning up to n = 8 samples simultaneously in one probe and one magnet is also shown. The maximum $5 cost for these parts lowers the barrier to entry for solid state MAS NMR, making it accessible to anyone with a printer, bench top magnet, and access to the internet.