This heliostat consists of the parts which I have described in the following sections. For reference I have named them mount, azimuth arm, azimuth servo bond, mirror mount,
hinge mount, hinge cover, elevation servo, elevation spring and heliostat cable.
I describe each of these parts, how to make and to combine them. Most of the parts are actually composites
themselves; for instance the azimuth servo is subpart of the azimuth servo bond, the
mirror is considered subpart of the mirror mount etc. They are in their
proper sequence as the heliostat is built along the way.
The mount is the fundamental block of the
heliostat and a rigid
element. It contains the azimuth servo in the front and fixes the heliostat
at the bottom to its wooden frame.
The azimuth arm
is a movable part of the heliostat. It is attached to the azimuth servo
in front of the heliostat. This connection is also its turning axis and
(later) the center of gravity of the azimuth arm; once the mirror in
front and the elevation servo at the back are mounted.
The azimuth servo bond fixes the azimuth arm to the azimuth servo.
The mirror mount
is attached to the lower backside of the mirror. It also fixes the
hinges to it which allow an elevational movement of the mirror.
The hinge mount fits with the teeth cutting off the mirror mount and takes the other end of the hinges. It is fixed to the azimuth arm.
The hinge mount cover is glued on top of the hinge mount. It fixes the hinges and contains
also the elevation nail.
The mirror elevation mount attaches one end of the elvation cord to the backside of the mirror.
The elevation servo sits on the back of the azimuth arm. It draws the mirror back
(increasing the elevation) or let it go pulling the elevation cord.
The elevation spring pulls the mirror into elevation down position when the elevation servo releases the cord.
The heliostat cable combines the two cables coming from azimuth and elevational servo, i.e.
six stranded wires. They are soldered to a 3x2 female header pin
(1/10'').
Author: Hannes Hassler.
This description can be used
under Creative Commons Attribution-Sharealike 3.0 license by citing page and author.
