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mirror grinding plans

Mirror grinding scope making

A good starter size is the 150 mm (6") mirror. A 200mm (8") will also work. Most ATM books and websites recommend a Pyrex® mirror blank, but in my opinion, annealed plate glass is better for this first, "learn and practice" mirror.It is cheaper, it is softer and grinds faster, needing less abrasives and with these small sizes, the low expansion glass like Pyrex has no practical (visible at

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200x Reflecting Telescope & Mirror Grinding How-To build PLANS

200x Reflecting Telescope & Mirror Grinding How-To build PLANS Click images to enlarge. Description. Plans for building a 200x power, 6" Reflecting Telescope and tripod. Complete details on grinding and polishing the mirror. Has a sturdy equatorial mounting.

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Joy of Mirror Making: Rough Grinding BBAstroDesigns

The curve is ground into the mirror face using a grinding tool. The curve is pre-generated for you. The curve is created by slumping the blank in a kiln over a mold. Here are 42 inch [107cm] and 30 inch [762cm] mirrors slumped and annealed to F2.8 ready for fine grinding.

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Joy of Mirror Making: Fine Grinding BBAstroDesigns

The goals of fine grinding are to prepare the curved mirror face so that it is ready for polishing and figuring and make any adjustments of the focal length. Previously in rough grinding we deepened the center of the mirror's face either by grinding with coarse grit and a tool, slumping in a kiln over a mold, or purchasing the glass pre-generated.

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DIY l Homemade Mirror grinding machine YouTube

Feb 03, 2013· Spiegelschleifen Grobschliff 20" Spiegel/ Mirror Grinding rough grinding 20" mirror Duration: 1:36. Free Plans Available Duration: 55:48. DIY Builds Recommended for you.

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Making a homemade mirror grinding machine ATM, Optics

Mar 06, 2006· The larger one is for grinding and polishing mirrors and is also used at higher speeds to centrifugally cast resin mirrors, an experiment I am playing with in my spare (sic!) time. The smaller mirror is used for power wrapping epoxy impregnated fiberglass around mandrels for making tubes and cylindrical components for open trusses.

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Build your own telescope part 1: The mirror Thomas

Rough grinding. This step is about making one side of the glass concave. It will give your mirror its overall focal ratio. If you make the centre deep, you will end up with a fast telescope (e.g. F/D = 4) well suited for deep sky observations. On the opposite, a shallow mirror (e.g. F/D = 8) will be performing very well on planets and the moon.

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Fixed post mirror grinder advice DIY Astronomer

Nov 01, 2011· Hi AllWeve been having some idle discussions about grinding mirrors here. In particular, weve been discussing building a fixed post mirror grinding turntable for cutting mirrors up to about a 24inch diameter to spherical. Its only a pipe dream at the

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Dick Parker's Telescope Mirror Workshop: Cassegrain

Grinding the secondary is just like grinding any other optic except in minature. I ground the secondary with the mirror on a workstand and worked the tool on top just like I would grind a larger mirror. This optic is small enough that a lens grinding machine could work well.

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Telescope Making Supplies

Throughout the grinding and final lapping stages, the objective has been to reduce pits and scratches to the smallest possible size. However, no amount of grinding can produce a surface smooth enough or sufficiently transparent to meet the needs of a first-class telescope objective. Different techniques are

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200x Reflecting Telescope & Mirror Grinding How-To build PLANS

200x Reflecting Telescope & Mirror Grinding How-To build PLANS Click images to enlarge. Description. Plans for building a 200x power, 6" Reflecting Telescope and tripod. Complete details on grinding and polishing the mirror. Has a sturdy equatorial mounting.

More

Joy of Mirror Making: Fine Grinding BBAstroDesigns

The goals of fine grinding are to prepare the curved mirror face so that it is ready for polishing and figuring and make any adjustments of the focal length. Previously in rough grinding we deepened the center of the mirror's face either by grinding with coarse grit and a tool, slumping in a kiln over a mold, or purchasing the glass pre-generated.

More

DIY l Homemade Mirror grinding machine YouTube

Feb 03, 2013· Spiegelschleifen Grobschliff 20" Spiegel/ Mirror Grinding rough grinding 20" mirror Duration: 1:36. Free Plans Available Duration: 55:48. DIY Builds Recommended for you.

More

Build your own telescope part 1: The mirror Thomas

Rough grinding. This step is about making one side of the glass concave. It will give your mirror its overall focal ratio. If you make the centre deep, you will end up with a fast telescope (e.g. F/D = 4) well suited for deep sky observations. On the opposite, a shallow mirror (e.g. F/D = 8) will be performing very well on planets and the moon.

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Mirror-o-Matic mirror making machine ATM pages of

Mirror-O-Matic grinding machine. When I decided in 2009 after a ten-year break to get into mirror making again, it quickly became clear to me that I would need to construct machine, as hand grinding big mirrors is not something very beneficial for the hands of a musician.

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Grinding Machine for Large Telescope Mirrors

I designed and built a grinding machine for mirrors up to 42 inches [1.1m] in diameter. By slipping on and off a couple of belts, the machine can quickly be reconfigured for spinning work or for stroking work. The machine can also work smaller mirrors if the drip pan

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Telescope making

Mirror grinding techniques There are many reasons for grinding your own mirror. Either you want a unusual size, or focal length, or to satisfy your curiosity, or to have the "pride of achievement" by fabricating something as precise as a telescope mirror. 300 mm Dobsonian This is my main telescope.

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Dick Parker's Telescope Mirror Workshop: Cassegrain

Grinding the secondary is just like grinding any other optic except in minature. I ground the secondary with the mirror on a workstand and worked the tool on top just like I would grind a larger mirror. This optic is small enough that a lens grinding machine could work well.

More

Fixed post mirror grinder advice DIY Astronomer

Nov 01, 2011· Hi AllWeve been having some idle discussions about grinding mirrors here. In particular, weve been discussing building a fixed post mirror grinding turntable for cutting mirrors up to about a 24inch diameter to spherical. Its only a pipe dream at the

More

Telescope Making Supplies

Throughout the grinding and final lapping stages, the objective has been to reduce pits and scratches to the smallest possible size. However, no amount of grinding can produce a surface smooth enough or sufficiently transparent to meet the needs of a first-class telescope objective. Different techniques are

More

Making a mirror with the Mirror-O-Matic YouTube

'm fine grinding my 12" plate glass mirror blank with the M-O-M by Dennis Rech. It's an automatic mirror making machine that takes the "caveman" work out of

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Homemade Telescope Making Google Sites

A table saw covered with layers of newspaper about 1/2 inch thick (to support the mirror and tool) was used as the grinding stand. A "wet" began by spraying the disks with water and smearing a small amount of grit over the tool (or mirror) with my fingers. The mirror (or tool) was then carefully placed on top of the tool (or mirror) and

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DIY Telescope Mirror grinding machine YouTube

Homemade 10inch Mirror Grinding Machine. Sorry for blurred image.....

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Mirror grinding Diy telescope, Telescope, Astronomy

Dec 2, 2013 telescope making, mirror grinding, homemade tripod, eyepieces, astronomy

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