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CAD gallery

Each kind of solid niess.brep draws, taken from a real instrument's assembly by its label -- so each is exactly what a STEP export of that instrument contains. Drag to turn a model, scroll to zoom. Export an instrument to CAD says how to make your own.

  • ESS butterfly moderator

    ESS_butterfly's outline for BIFROST's beam port, W4, as tall as the moderator. moderator in the BIFROST instrument.

  • Elliptic guide

    BIFROST's neutron beam optics assembly: four substrate walls following the ellipse. nboa in the BIFROST instrument.

  • Straight guide

    One segment of BIFROST's curved guide. unit_3_curved_guide_0 in the BIFROST instrument.

  • Disc chopper (NXdisk_chopper)

    A pulse-shaping disc: one opening, centred on the beam at the disc's reference angle. pulse_shaping_chopper_1 in the BIFROST instrument.

  • Disc chopper (DiskChopper)

    The teaching instrument's single-opening disc. chopper in the teaching instrument.

  • Jaws

    A divergence slit, drawn at its opening. divergence_slit_1 in the BIFROST instrument.

  • Slit

    The sample-area mask, drawn at its opening. mask in the BIFROST instrument.

  • Attenuator

    A filter-style block at its size. attenuator_1 in the BIFROST instrument.

  • Radial collimator

    One wedge of the tank: the beryllium filter and collimator arcs. wedge_0 in the BIFROST instrument.

  • Rowland analyzer

    Each blade on the Rowland circle through sample, analyzer and detector, turned to focus. channel_1_1_analyzer in the BIFROST instrument.

  • Detector triplet

    Three He-3 tubes. channel_1_1_detector in the BIFROST instrument.

  • Named position

    Three short axes, for a bare Component that marks a place. sample_origin in the BIFROST instrument.

  • BIFROST's secondary spectrometer

    Nine channels of radial collimators, analyzers and triplets, at a4 = 0. tank in the BIFROST instrument.

TaperedGuide and NCrystalFilter are drawn too -- a tapered box shell and a block at the filter's size -- but neither instrument here has one.

A component with no shape of its own is placed and not drawn: windows, filters and monitors, for now. The models are generated by docs/examples/cad_gallery.py when the site is built.