"THAT is no​t a telescope!..."
This is something that I few people have said when they first see my telescopes if they are not familiar with the many different appearances telescopes have.
Many people when they think of what a telescope looks like, their first thought is of a “pirate” like instrument, with a big lens at one end of a long tube, they you look through the other end – a refractor telecope.

Telescopes actually not greatly vary in appearance, but also in how they work.  Telescopes can make use not only of lenses, but also mirrors – reflector telescopes.
Reflectors make use of a concave mirror (primary mirror) instead of a large lens.  The way the optical path of light works is then exactly the same.  Reflectors because of the use of mirrors, need to make use of at least two mirrors, one to collect and focus light, and a smaller mirror (secondary mirror) to divert this light out the side so you can view the image.
The most common astronomical reflecting telescope is the Newtonian telescope, named after the inventor Sir Isaac Newton.

Another popular reflecting telescope is the Cassegrain telescope.  It too uses a large concave primary mirror to collect and focus light, but the smaller secondary mirror reflects this light back down towards the primary, but primary mirror has a small hole at its centre and the light from the secondary mirror passes down through this hole and out to where the user can view the image.

The long solid tube of the refractor is just one method that the optics can be held together to form a telescope.  Many telescopes today make use of a tubular system (truss telescope) to form the telescope.  Both solid tube and truss systems are used in both amateur and professional telescopes.
Both solid tube and truss systems are used in both amateur and professional telescopes.  There are many reasons for the use of a truss system instead of a solid tube:
1,  Light weight compared to a solid tube for the same size telescope.
2,  Allows for a collapsible telescope design that makes for a large aperture telescope to become smaller in size when taken down for easier storage and portability.
3,  The open structure of a truss system also allows for much easier ventilation and faster cooling of the optics.
Telescope mounts - The dobsonian aspect.
“Dobsonian” refers to the style of mount that Newtonian telescopes are frequently coupled to.  It is named after the designs originator, John Dobson.  The design employs a very simple “up and down, and around” system, much like a gun-turret.  When properly designed, the dobsonian mount is very stable, compact, and the movement of the telescope is silky smooth, not jerky, and has the telescope itself perfectly balanced so the quality of its movement is always the same, and does not require any type of friction mechanism to brake an unbalanced instrument.
These are all features that you will find in the telescopes we build, along with all the mechanical advantages that a well designed dobsonian mount provides with our telescopes and mounts.
There's more to us than just building telescopes.
We build our instruments from actually using telescopes and following our own niche within astronomy.  This is where much of our inspiration for how we do things comes from.  Alex's own blog is where he gets his hands dirty with astronomy.