462 mm QUARTZ Blank ready to be figured

Fused Silica (Quartz) performs an awesome thermal expansion coefficient of 5.4 x 10-7/ , 6 time less than borosilicate glasses, harder enough to allow better figuring process and advantage in terms of strength to density ratio.

462 mm quartz blank

TI 45 Telescope Control Software Test #01

First test of the Astrograph Control Software using a smartphone via WIFI. For more informations on our Astrographs, please visit our website: www.italiantelescopes.net The Control Software is full Ascom Alpaca compliant.

f/4 correctors

The first three TI45 astrograph f/4 correctors are ready!

The first three f/4 correctors are ready. They are 126 mm of optical diameter (about 5″) and have three elements, one of wich is an ED lens.

This high-end design corrector is the core of our new optical design and thanks to this the optical performances are so awesome (see Optical Performances).

The primary and secondary mirrors are ready too, and autocollimation tests will start very soon. The f/8 correctors lenses are ready too and they are waiting to be mounted.

 

TI45 electronic board

All the electronic boards are under test and debugging

All the electronic boards of the TI45 Astrograph are under test and debugging

All the electronic boards of our new TI45 astrograph are now under test and debugging. They will control the 4″ field rotator, the four primary mirror cover shutters, all the sensors, fans, heaters on board, the power outputs, etc.
They will be integrated in the TI 45 Astrograph body.

Astrograph harmer wynne

TI 45 Astrograph Harmer Wynne: correctors being handled

Two executive projects of correctors for f/4 (Modified Harmer Wynne configuration) and f/8 (Corrected Cassegrain configuration) of our TI 45 Astrograph were frozen.

Optical performance is now arising  better improved. Results and charts as follows:

Optical Performances

 

Four motor sets for TI 45

TI 45 Astrographs, motor sets ready to be tested

Four sets for four TI 45 Astrographs are ready to be tested!

Each set includes: four DC motors with planetary gearbox for the primary mirror shutters and one small stepper motor with planetary gearbox for the 4″ integrated field rotator.

 

Electronic Board

TI 45 astrographs: electronic boards ready to be assembled

We are happy to announce all electronic boards to be soon on-board of the new TI 45 Astrograph are ready to be assembled and tested.

The entire electronics is based on a main board, a small board to control the field rotator and a board that takes care of the shutters. The firmware and the software is under development.

Telescope Mirrors Parabolic

Schott Suprax blanks ready for polishing

Here are the two blanks Schott Suprax 8488 ready for polishing. They are 456 mm in diameter (to have a useful diameter of 450 mm) and 50 mm thick. They will be processed with parabolic shape at f/3. These mirrors are made for the first two prototypes of TI 45 Astrographs.

Telescope Mirrors Parabolic