.The metal surface in both a glass mirror with AL coating and a mirror made for aluminium will deteriorate from reactions with chemicals in the air and no longer be as
.In this paper, we describe the integrated design and manufacturing of aluminum alloy primary mirror assembly (mirrors and mirror backplane) through the combination of
.This study proposes a closed-back mirror with composite surfaces based on additive manufacturing (AM). Compared with the open-back mirror, it provides excellent
Durability, Material, and CompositionFabrication ProcessApplications For UsageAluminum When Creating Optomechanical ComponentsFabricating with Aluminum can be tricky; however, CMM has the uncommon ability to cut and mill Aluminum optics with precision. We start with a bare block of Aluminum, shaping it into its final form and size, then directly cutting to a high finish using our Single Point Diamond Turning (SPDT) process.Once meticulously created, your optic has the op...â•Ÿmmopticoogle Patents
An object of the present inventionis to Provide a method of making optical mirrors of aluminum which may be surfaced to the same high degree of accuracy, and to the same quality of optical...
.This review focuses on the following topics: (1) AM technologies and powder materials for metal mirrors, (2) recent advances in optomechanical design methods for AM
.The members of ATMMetalMirror group have already made fine aluminum mirrors and are using them in telescopes. The issues of thermal expansion has been disposed
.I am familiar with how the primary mirror cell is usually separated from the base plate by three screws which are rotated to adjust collimation. Folks on this forum describe
His secondary mirror was as big as the primary mirror of other advances amateurs in those days. He used a self-designed and self-built complex grinding machine in its own home workshop.
.The main reason primary mirrors are not produced in polished metal, aluminum, brass or stainless steel is thermal dimensional changes? or there is something else? Hi
.I think this was mainly due to the copper. If you gave the mirror an aluminum overcoat, then you could avoid this. Itd also help to paint the sides and back of the mirror to
.Epoxy mirrors?? - posted in ATM, Optics and DIY Forum: With all this talk about aluminum mirrors, and some misconceptions I noticed about speculum mirrors (that they
.Ice Mirrors? - posted in ATM, Optics and DIY Forum: This could be a crazy topic. Has anyone looked into using ice as a mirror blank? Is it stable and durable enough for
.18 mirror cell - posted in ATM, Optics and DIY Forum: Hello,I am in the process of rebuilding my 18 dob.I have made several scopes but not one this big.Every other scope I
.Help for primary mirror cell - posted in ATM, Optics and DIY Forum: I am trying to improve the mirror cell of my 8quot; f/4 Newton. I have modified the original cell by building a
.Hello All, Does some outfit make good 6-point / 9-point metal primary mirror cells for equatorial mounted OTAs?(Non-Dobson) There is this shop making (some well
.Page 12 of 12 - 150mm f16 Stevick-Paul mirror making and build - posted in ATM, Optics and DIY Forum: What is the size of your star? I guess it should be smaller than
.Page 1 of 2 - Mirror Box Handles - posted in ATM, Optics and DIY Forum: Im deep in mirror box construction details on my 22-inch Dob project at present and am
.Page 3 of 3 - Metal mirrors - posted in ATM, Optics and DIY Forum: Do you leave it in T6 or anneal it Marcos ? Mirror made with original heat treatment from the manufacturer.
.Page 1 of 2 - The making of a 10quot; Dob - posted in ATM, Optics and DIY Forum: During the summer holidays (NZ) in January I realised I was spending too much time sitting in
.Aluminium tube - posted in ATM, Optics and DIY Forum: I have an ongoing project to build an equatorial mounted 25 reflector telescope. The intention is to use an
.Page 1 of 2 - Anybody flex their primary mirrors? - posted in ATM, Optics and DIY Forum: I just learned about this tonight, while surfing the web. I Googled telescope mirror
.making a mirror cell - posted in ATM, Optics and DIY Forum: Sorry for the newb question. I am familiar with how the primary mirror cell is usually separated from the base plate
.Page 1 of 2 - Aluminum Tube Lining - posted in ATM, Optics and DIY Forum: I am building a large Newtonian with a solid 0.125 inch thick aluminum wall tube: Pieter at Aamp;B
.Stripping Aluminum off Mirror - posted in ATM, Optics and DIY Forum: I got hold of some anhydrous Ferric Chloride powder. Mixed it with about 1 to 4 distilled water and
.Minimum gauge metal or other material for cell designs... - posted in ATM, Optics and DIY Forum: Just curious as to the minimum gauge or thickness of various materials used
.do aluminized mirrors corrode? - posted in ATM, Optics and DIY Forum: I read that observatories re-aluminize their mirrors every few years. I also thought that aluminum
.Page 1 of 2 - Mirror thickness v. cooling time? - posted in ATM, Optics and DIY Forum: I have a 12.5 6:1 (2 thick) primary. It seems to me it takes ages, fan or no, to cool
.CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.
Page 1 of 2 - 16quot; conical Cassegrain mirror cell? - posted in ATM, Optics and DIY Forum: Hi, Im right now conceiving a 16 f/D=20 Cassegrain telescope. All optics are made of Zerodur. The
.Invar - posted in ATM, Optics and DIY Forum: Anybody here familiar with Invar? Specifically I was wondering about whether or not one could fabricate something like a primary
.Casting a mirror? - posted in ATM, Optics and DIY Forum: Was wondering if anyone here has ever made a mirror by casting the rough parabolic shape and then finishing it