Simple Seam Allowance Helper

thingiverse

Seam allowance for 7, 10, 15 and 20 mm is achieved using a standard pencil measuring 8mm in diameter. Printing with 100% infill adds significant weight to the object, although it's not strictly necessary - you can opt for a lighter design if preferred. The body of the object was printed at a layer height of 0.16 mm, while the pointed section required a more precise 0.12 mm layer thickness.