Atlas mount Orion Eon 80mm Celestron C8 ETX-90 EC Asahi Pentax 60mm f6 8" truss dob explore scientific comet hunter SSAG Meade DSI II pro mono with filter set Canon dslr and Backyard EOS Multiple eyepieces from 5 to 40mm sky safari plus/samsung galaxy 2/RN270M Holder of a Bob Raleigh pen
Quote:Kinda dangerous but short of the blade shattering I can't think of anymore precautions I could take.
George RoffeKingwood, TX
Quote:..... To prevent kickback I screwed a piece of wood on the fence to trap the piece of aluminum and fed it with a long dowel.....
-DannyMy warehouseMy Channel
10"f5.3 Newt (homemade) 8"f6 (hm)8"f7.5 (M Harry mirror) 6" f8 Newt (hm) 2 4.25"f11 Edmund newts. 4.25" Schief (hm) 5" D&G Refractor 5"Celestron MakCass, 6" MakNewt Intes optics,6" f10 MakCass Intes optics several small refractors 90mm, 80mm, 60mm
ATM 13.1" reflector Sky Watcher BK 120 ED Orion 80 ED HEQ5 Pro and EQ6 Pro Modded Rebel XT and T3i unmodded KWIQ Guider http://www.pierresplace.ca
"The White Zone is for loading or unloading of passengers only. No Astrophotography." Cosmic Acres! Greatest restoration challenge: Tulley and Sons 3" achromat on Altazimuth mount, circa ~late 1820s
Quote:Check the blade information for non ferrous usage
6" F4.6(w/Paracorr) Reflector , 8" F11 Dall Relay Scope ,
6" F5 RFT Refractor w/Istar Obj , G11 Mount Gemini1 Level 4
Quote:...I suppose it all depends on what you are familiar with. I've never seen anyone use a router on aluminum and I can't imagine it working well but others apparently do it successfully....
Celestron 8SE Dobstuff 13.1": Swayze refigured Coulter mirror, 6 pt mirror cell (2 pt edge support) and CF focuser board made by me StarBlast 4.5 ST80/PortaMount II Zhumell 20x80/Oberwerk 15x70 on a Seronik-style tripod boom mount Hubble Optics 18 inch F/4 mirror.
Inventor of the Herschel Wedgie. Watch your back.
Astronomy - The World's Second-Oldest Profession.
"You don't know Swift from Astrola." -C.H.-
12" ScopeScavenger Truss Prototype 1.0 http://scopescavengerastronomy.blogspot.com ETX90 with goto--currenltly on loan to an aspiring young astronomer Z12 Zhumell Dob with setting circles and digital inclinometer--currently dissected for parts EPs (Agena 24-8mm zoom, 30mm 2" zhumell, 28mm super plossl, Celestron basic kit 15mm and 9mm) 10x42 Alpen binos 20x80 binos
JMI NGT 12.5 SN21 coupla truck loads of other stuff WRS Observatory ROR
Quote:I've never seen anyone use a router on aluminum and I can't imagine it working well but others apparently do it successfully.
Quote:Quote:I've never seen anyone use a router on aluminum and I can't imagine it working well but others apparently do it successfully. Hard to cut circles or rings with a regular saw...Best,Mark
Quote:But can you cut a perfectly smooth 20" ring 3/4" wide from 1/2" aluminum sheet??FWIW, I use a 1/8" straight solid carbide bit to make the initial cuts (in the waste area), then a 1/4" spiral carbide bit to do to the final shaping. Don't forget the oil!
Quote:Don't forget the oil!
Quote:But can you cut a perfectly smooth 20" ring 3/4" wide from 1/2" aluminum sheet??FWIW, I use a 1/8" straight solid carbide bit to make the initial cuts (in the waste area), then a 1/4" spiral carbide bit to do to the final shaping. Don't forget the oil!Best,Mark
Quote:I was surprised to discover that thicker aluminium cuts better than thin - if you want to cut sheet-metal, best to clamp it between a couple of pieces of plywood or something, and cut the whole sandwich.I was also surprised that Aluminium is really no harder to cut than really hard maple or hornbeam..... sure is noisier, though!R