A soft magnetic powder of the invention has a composition represented by Fe.sub.100-a-b-c-d-e-fCu.sub.aSi.sub.bB.sub.cM.sub.dM.sub.eX.sub.f (at %) [wherein M is Nb, W, Ta, Zr, Hf, Ti, or Mo, M is V, Cr, Mn, Al, a platinum group element, Sc, Y, Au, Zn, Sn, or Re, X is C, P, Ge, Ga, Sb, In, Be, or As, and a, b, c, d, e, and f are numbers that satisfy the following formulae: 0.1a3, 0<b30, 0<c25, 5b+c30, 0.1d30, 0e10, and 0f10], wherein a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less is contained in an amount of 40 vol % or more, and the difference in the coercive force of the powder after classification satisfies predetermined conditions.

A soft magnetic alloy powder comprises first particles to fifth particles, each having a particle size within a specific range. Among the first particles to the fifth particles, nth particles have an average particle size x.sub.n (?m), an average circularity y.sub.n, and a variance z.sub.n of circularity, where nth is any ordinal number from first to fifth. Points (x.sub.n, y.sub.n) (n=1 to 5) plotted in an xy plane define an approximate straight line having a slope my of ?0.0030 or more. Points (x.sub.n, z.sub.n) (n=1 to 5) plotted in an xz plane define an approximate straight line having a slope mz of 0.00050 or less.

A soft magnetic alloy powder comprises first particles to fifth particles, each having a particle size within a specific range. Among the first particles to the fifth particles, nth particles have an average particle size x.sub.n (?m), an average circularity y.sub.n, and a variance z.sub.n of circularity, where nth is any ordinal number from first to fifth. Points (x.sub.n, y.sub.n) (n=1 to 5) plotted in an xy plane define an approximate straight line having a slope my of ?0.0030 or more. Points (x.sub.n, z.sub.n) (n=1 to 5) plotted in an xz plane define an approximate straight line having a slope mz of 0.00050 or less.

A magnetic powder contains a soft magnetic material represented by the following composition formula, in which an average particle size is 2 ?m or more and 10 ?m or less, and at least a surface layer is nanocrystallized,
Fe.sub.aCu.sub.bNb.sub.cSi.sub.dB.sub.e where, a, b, c, d, and e each indicate atomic percentage, 71.0 at %?a?76.0 at %, 0.5 at %?b?1.5 at %, 2.0 at %?c?4.0 at %, 11.0 at %?d?16.0 at %, and 8.0 at %?e?13.0 at %.

A magnetic powder contains a soft magnetic material represented by the following composition formula, in which an average particle size is 2 ?m or more and 10 ?m or less, and at least a surface layer is nanocrystallized,
Fe.sub.aCu.sub.bNb.sub.cSi.sub.dB.sub.e where, a, b, c, d, and e each indicate atomic percentage, 71.0 at %?a?76.0 at %, 0.5 at %?b?1.5 at %, 2.0 at %?c?4.0 at %, 11.0 at %?d?16.0 at %, and 8.0 at %?e?13.0 at %.

A permanent magnet includes R and T (R essentially includes Sm one or more of rare earth elements in addition to Sm, and T essentially includes Fe, or Fe and Co, one or more of transition metal elements in addition to Fe, or Fe and Co). A composition ratio of R in the permanent magnet is 20 at % or more and 40 at % or less. A remaining part is substantially only T, or only T and C. T amount is more than 1.5 times of R amount and less than 4.0 times of the R amount. Main phase grains included in the permanent magnet have an Nd5Fe17 type crystal structure. An average crystal grain size of the main phase grains of the permanent magnet is greater than 1 m. A number ratio of main phase grains having a crystal grain size of less than 0.4 m is less than 20%.

A permanent magnet includes R and T (R essentially includes Sm one or more of rare earth elements in addition to Sm, and T essentially includes Fe, or Fe and Co, one or more of transition metal elements in addition to Fe, or Fe and Co). A composition ratio of R in the permanent magnet is 20 at % or more and 40 at % or less. A remaining part is substantially only T, or only T and C. T amount is more than 1.5 times of R amount and less than 4.0 times of the R amount. Main phase grains included in the permanent magnet have an Nd5Fe17 type crystal structure. An average crystal grain size of the main phase grains of the permanent magnet is greater than 1 m. A number ratio of main phase grains having a crystal grain size of less than 0.4 m is less than 20%.

A printer fabricates an object from a computerized model using a fused filament fabrication process. The shape of an extrusion nozzle may be varied during extrusion to control, e.g., an amount of build material deposited, a shape of extrudate exiting the nozzle, a feature resolution, and the like.

A printer fabricates an object from a computerized model using a fused filament fabrication process. The shape of an extrusion nozzle may be varied during extrusion to control, e.g., an amount of build material deposited, a shape of extrudate exiting the nozzle, a feature resolution, and the like.

A printer fabricates an object from a computerized model using a fused filament fabrication process. A former extending from a nozzle of the printer supplements a layer fusion process by applying a normal force on new material as it is deposited to form the object. The former may use a variety of techniques such as heat and rolling to improve physical bonding between layers.