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1. #SNOW BROOM FOR CAR 60 INCH TELESCOPE HOW TO#
2. #SNOW BROOM FOR CAR 60 INCH TELESCOPE CODE#
3. #SNOW BROOM FOR CAR 60 INCH TELESCOPE TV#
4. #SNOW BROOM FOR CAR 60 INCH TELESCOPE FREE#

You can buy glass blanks online, in addition to other telescope making supplies at First Hand Discovery. Mine were plate glass 6.25" in diameter for the mirror and 5.75" in diameter for the tool, 3/4" thick. 2 pieces of glass - one will be the mirror, the other is the tool you will use to grind it.I'm entering this into the Hand Tools Only Contest because when I did this project that's all I had! I've heard that this is literally the highest amount of precision a human can achieve with simple hand tools! Just grinding the telescope mirror probably took 80-100 hours for me, but I was learning a lot and taking my time. Both of these individuals were very interesting characters, google them on Wikipedia if you want some interesting bits of history!Īnyway, it's amazing the precision you can achieve simply with some glass, grit, pine pitch and a lot of work. John Dobson was a monk and did much of his work in secret from his brotherhood. The process for grinding telescope mirrors at home actually doesn't look too much different than when Isaac Newton first developed it, and he didn't have any power tools. It's a dead simple mount to build and I highly recommend it if you are looking to build a telescope.

The mount style that I used is sort of like a cannon mount, and was originally designed by John Dobson, so called a Dobsonian. This style of reflecting telescope was actually invented by Isaac Newton, so the optical system is called a Newtonian telescope. I'm entering this into the Hand Tools Only Contest, so be sure to vote if you get inspiration or good info from this!

#SNOW BROOM FOR CAR 60 INCH TELESCOPE HOW TO#

This Instructable will cover how to grind a mirror for your telescope - I'll link to other sources for building the other aspects of a telescope. I ground the mirror and made every other component out of recycled materials as much as possible. Making a telescope about 10 years ago was one of the most rewarding projects I've ever undertaken. He is now publishing personal Instructables over at member ID MechaNickW. Nominal voltage under typical load is 21.6V.Author's note: This Instructable was written and published by our Making and Tinkering Programs Manager, who's personal Instructable account we co-opted. Initial no-load voltage, per fully charged battery, peaks at 24V. Initial no-load voltage, per fully charged battery, peaks at 24V nominal voltage under typical load is 21.6V. Ģ4V Tools: Initial no-load voltage, when fully charged, peaks at 24V nominal voltage under typical load is 21.6V.

#SNOW BROOM FOR CAR 60 INCH TELESCOPE FREE#

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#SNOW BROOM FOR CAR 60 INCH TELESCOPE TV#

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#SNOW BROOM FOR CAR 60 INCH TELESCOPE CODE#

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