1948 12.5 Reflector, Projects

1948 Measurements Gallery

In ‘Picture, Measure In, Measure Mm’ or ‘Picture, Measure In’ sequence. All pix 40% size redux, 55% jpeg quality.

  • some image names contain ‘head’ or ‘tail’, meaning:
  • ‘head’ – towards center on axes or secondary end on the OTA
  • ‘tail’ towards outside on axes or mirror end on OTA

Haven’t gotten ‘great’ measurements yet. There are obstructions, awkward position sometimes. And there was a storm approaching.

  • Pinion is 12T
  • Rotator Ring Gear is 134T, 14.5″ @ outside of flange, 15 1/2″~15 5/8″ to outside of teeth
  • RA Axis Worm Wheel is 100T, 10.25″ to outside of teeth
  • RA Axis Shaft is ~1.19″
  • Dec Axis Shaft is ~ 1.20

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