Massage Roller

thingiverse

I recently had troubles with a painful muscular inflammation, which a massage roller helped alleviate, but the roller I used was tiresome and clumsy to handle due to its uncomfortable grip. What I wanted was a massage roller that would fit snugly in the palm of my hand without requiring any grip strength. The result is the device shown in the pictures, which I'm quite happy with. I dislike things that squeak, so I opted for ball bearings for the roller wheels. I had some SSL1790ZZ (9x17x5) bearings on hand, so I used those, and they worked out great. However, these bearings are overkill for a massage roller, which is why I created alternative versions of the STL files to accommodate cheaper F608ZZ (8x22x7) bearings instead. Although I haven't printed this version yet, it should work. Searching for F608ZZ on eBay yields numerous options, but be cautious when purchasing as some sellers try to pass off regular 608ZZ bearings as F608ZZ by omitting the flange at the top of the bearing. Everything about my design is snap-fit, requiring no glue or screws. I created three different wheel designs that fit within the shell: one curved wheel printed in two parts that are pressed together, and two other wheels printed as single parts. The bearings are simply pressed into place, although you may need to clean the hole slightly beforehand to ensure a tight fit. The shell consists of two identical parts that snap together around the roller to hold it securely in place.