An instrument, comprising: a diffraction grating to disperse broadband light over a range of wavelengths; a detector; a digital micromirror device configured to reflect at least a portion of the range of wavelengths toward the detector; and a plurality of assembly mounts (320, 330, 340, 350, 360, 370) integrally formed as a base platform to align and secure the diffraction grating, the detector, the DMD, and a plurality of optical components (132, 134, 152, 154, 172, 174, 176) of the instrument in a predetermined arrangement, wherein: the base platform is continuously formed from a single material using an additive manufacturing process; the plurality of the assembly mounts comprise a plurality of integral seats (332, 334, 352, 354, 372, 374, 376); each of the plurality of optical components (132, 134, 152, 154, 172, 174, 176) of the instrument is seated into a respective one of the plurality of integral seats (332, 334, 352, 354, 372, 374, 376) in a unique predetermined arrangement relative to each other and the diffraction grating, the detector, and the DMD; and the plurality of integral seats (332, 334, 352, 354, 372, 374, 376) are individually separated by a predetermined spacing along at least one optical pathway (200, 202, 204, 206) in the instrument. a diffraction grating to disperse broadband light over a range of wavelengths; a detector; a digital micromirror device configured to reflect at least a portion of the range of wavelengths toward the detector; and a plurality of assembly mounts (320, 330, 340, 350, 360, 370) integrally formed as a base platform to align and secure the diffraction grating, the detector, the DMD, and a plurality of optical components (132, 134, 152, 154, 172, 174, 176) of the instrument in a predetermined arrangement, wherein: the base platform is continuously formed from a single material using an additive manufacturing process; the plurality of the assembly mounts comprise a plurality of integral seats (332, 334, 352, 354, 372, 374, 376); each of the plurality of optical components (132, 134, 152, 154, 172, 174, 176) of the instrument is seated into a respective one of the plurality of integral seats (332, 334, 352, 354, 372, 374, 376) in a unique predetermined arrangement relative to each other and the diffraction grating, the detector, and the DMD; and the plurality of integral seats (332, 334, 352, 354, 372, 374, 376) are individually separated by a predetermined spacing along at least one optical pathway (200, 202, 204, 206) in the instrument. the base platform is continuously formed from a single material using an additive manufacturing process; the plurality of the assembly mounts comprise a plurality of integral seats (332, 334, 352, 354, 372, 374, 376); each of the plurality of optical components (132, 134, 152, 154, 172, 174, 176) of the instrument is seated into a respective one of the plurality of integral seats (332, 334, 352, 354, 372, 374, 376) in a unique predetermined arrangement relative to each other and the diffraction grating, the detector, and the DMD; and the plurality of integral seats (332, 334, 352, 354, 372, 374, 376) are individually separated by a predetermined spacing along at least one optical pathway (200, 202, 204, 206) in the instrument.