In support of the fact that the balance of light Dobsonian (and not), It can be done dynamically as an alternative to the use of counterweights, I do narrate here my recent experience to rebalance with elastic rubber my Dob250F5, After adding optical finder 6×30 weight of 265g. In order to fully understand what the physical principles and
My Carry a positive experiment in practical balancing the telescope Dobson, with the use of tension springs in replacement of heavy counterweights. A Dobson telescope behaves in practice as a first class lever, that is, as a classic balance with two arms and central hub: The arm, We are saying A (see figure); It goes from the cell of the
When in processing a mirror you will reach a refined and smooth surface with abrasives in grain 800 or outside, You must establish for preparing the tool with pitch patina coverage, to proceed in the following two important final processing stages, that are the transformation of the frosted surface but opaque, in
The documentation on this interesting recent optical tests appeared on the Internet in the different languages of the countries where it is more widespread self-amateur optical construction. So a text in Italian, there is currently not existing. therefore, being I curious and “insider” I thought to translate into Italian, I use and people like me
