
RPM Package 圆4 - VariCAD Viewer 2022 2.04 ) Debian Package 圆4 - VariCAD Viewer 2022 2.04 (OpenSUSE Leap 15, Debian 9, Ubuntu 18.04, Mint 19.1, Fedora 26. VariCAD Viewer/Converter for Windows VariCAD Viewer 2022 2.04ĭownload VariCAD for Linux (64-bit version) VariCAD for Linux VariCAD is quite easy to use, but for other functions (measuring distances, dimensions), here is the excellent manual.Download VariCAD for Windows 7, 8, 10 and 11 (64-bit version) VariCAD for Windows VariCAD 2022 2.04
Shift + CTRL + left click : rotating XYZ in 3D. CRTL + left click : panning XY in 2D and 3D. VariCAD Viewer software (free) : Allows to view the drafts in 2D and 3D. The mechanical solutions adopted for the prototype should be the same for the series (in particular, the distances in the coronagraphic part from the occulting disk to the focal plane are good), but the final mechanical design must be adapted to the new refractor.ĢD and 3D drafts (in the same VariCAD file) : CoroVenus+Protus4_Meade90_F.dwb *Important note this design (3D model) is the prototype's one, based on a Meade 90/1000 refractor different from the Skywatcher refractor that will be used for the series Cytherographs. The pixel scale is 0.416 arcsec/pix (for 5µm pixels), so that the 58" arcsec Venus disc lay on 140 pixels. The resulting focal length is enlarged to 2514 mm by the combination of O2, O3 and O3' lenses. Our Cytherograph is based on a standard 1000mm focal length refractor. a O3' lens ( Achromatic Lens 25mm Dia. a filter (interferential filter, bandwidth < 10nm). a field lens called O2 ( (1.0'' Dia F/4.0 Molded Acrylic Aspheric Lens, VIS Coated)). In the Cytherograph, the occulting disk is displaced in order to get the solar limb on the optical axis. an occulting disk with an occulting cone in front of it.
a main lens (doublet) called O1 (Skywatcher BK 1021 EQ3-2, D: 102mm F: 1000mm).The design of the Cytherograph (please note the parts that we provide to the observers) is the same as the Lyot coronagraph with : it cannot be varied by acting on the focuser knobs. One should note that this is a fixed distance by design, i.e. From the rim of the 1.25 adapter to the focal plane, the distance is ~90 mm. On the rim of this adapter, a standard 42x0.75 mm (T2) male thread is additionally present, very common among photographic accessories. The focuser has a 2 inches eyepiece holder + a 1.25 inches adapter. Instrument prototype mark I, during testing. Optical and mechanical details Some data Total tube length (focuser retracted)