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I want to MAKE a scope |
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hydryu
Optics GrassHopper Joined: March/14/2010 Location: CA Status: Offline Points: 3 |
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Posted: March/14/2010 at 15:24 |
I want to make a magnifying scope for my airsoft gun. I know that you have to use a concave and a convex lens but where can i buy the lenses? And also, how do they draw the crosshair on? I tried using sharpie but it ends up being transparent. As if i dont see the black crosshair
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SVT_Tactical
MODERATOR Chief Sackscratch Joined: December/17/2009 Location: NorthCackalacky Status: Offline Points: 31233 |
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Why?
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"Most folks are about as happy as they make their minds up to be" - Abraham Lincoln
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neilbilly
Optics Master Joined: February/07/2010 Location: Sweeny TX Status: Offline Points: 999 |
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Ilya would actually be able to help you if you really need it explained in detail.
Got to agree with SVT though. If you're setting the bar low enough for a sharpie, might as well spend 15 bucks and get something put together by an 8 year old Chinese girl. "leapers, etc" This going on a home built pvc air gun? "some of which are pretty darn cool I might add" |
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If God didn't want me to play with it, he'd of made my arms shorter.
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hydryu
Optics GrassHopper Joined: March/14/2010 Location: CA Status: Offline Points: 3 |
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I was just saying. Why doesn't sharpie work? I was wondering how the real scopes make the crosshair so dark and perfect
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neilbilly
Optics Master Joined: February/07/2010 Location: Sweeny TX Status: Offline Points: 999 |
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Not trying to harsh on ya man. I have no clue why a sharpie wouldn't work, or any idea what is actually used.
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If God didn't want me to play with it, he'd of made my arms shorter.
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Tip69
Optics Master Extraordinaire Tip Stick Joined: September/27/2005 Location: Nebraska Status: Offline Points: 4155 |
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the good ones are "etched" and the others are wire........ I believe!
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take em!
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8shots
Optics Jedi Knight Lord Of The Flies Joined: March/14/2007 Location: South Africa Status: Offline Points: 6253 |
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I suggest you read up a bit first before trying to build your owm scope. You will need to understand a bit more about the physics of lenses etc.
The front lens or objective lens forms a picture roughly 3 inches in front of the rear lens or ocular lens. The function of the rear lens is to enlarge this picture for you.
The crosshair is also placed at this point, in other words 3 inches in front of the rear lens. It is not drawn on any of the lenses.
So a sharpie will not work. These lines are so thin they are hardly visible to the naked eye. The lines are made of thin strands stretched between two points or etched onto a glass. This glass is not part of the objective or ocular lens.
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8shots
Optics Jedi Knight Lord Of The Flies Joined: March/14/2007 Location: South Africa Status: Offline Points: 6253 |
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A further note, unless you also use erector lenses, your sight picture will be upside down.
As one post suggest, rather buy a $18 Chinese scope. Edited by 8shots - March/15/2010 at 03:39 |
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cyborg
Optics God Gaseous Clay Joined: August/24/2007 Location: North Georgia Status: Offline Points: 12288 |
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Man the bottom line is that the costs for any associated parts needed are going to cost you. Because of the building only one cost to unit price. Then there is the whole lens design for scope length design and focal points. Magnification, and erector... What you are asking isn't an easy proposition, especially so when the fact that you have questions only provides the insight that you would be doing trial and error.
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With Freedom comes great responsibility, you cannot have one without the other
An armed public are citizens. A disarmed public are subjects. OATH KEEPER #8233 Support us, and join our cause. Cyborg |
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Ed Connelly
Optics Retard God of no Chihuahua Joined: December/16/2007 Location: USA Status: Offline Points: 24225 |
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hydryu
Optics GrassHopper Joined: March/14/2010 Location: CA Status: Offline Points: 3 |
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Where can i find a 18$ scope? Link plz |
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neilbilly
Optics Master Joined: February/07/2010 Location: Sweeny TX Status: Offline Points: 999 |
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If God didn't want me to play with it, he'd of made my arms shorter.
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neilbilly
Optics Master Joined: February/07/2010 Location: Sweeny TX Status: Offline Points: 999 |
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you can get 3 of them for $18
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If God didn't want me to play with it, he'd of made my arms shorter.
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neilbilly
Optics Master Joined: February/07/2010 Location: Sweeny TX Status: Offline Points: 999 |
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If God didn't want me to play with it, he'd of made my arms shorter.
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Urimaginaryfrnd
MODERATOR Resident Redneck Joined: June/20/2005 Location: Iowa Status: Offline Points: 14964 |
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Can we get that with tactical knobs, and will the old style cardboard kotex holders work or should we go Scotts papertowel core for more adjustment? Also I have some old beer bottles laying around do you think the glass will be too dark for lenses.
Edited by Urimaginaryfrnd - March/15/2010 at 23:13 |
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"Always do the right thing, just because it is the right thing to do". Bobby Paul Doherty Texas Ranger |
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neilbilly
Optics Master Joined: February/07/2010 Location: Sweeny TX Status: Offline Points: 999 |
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Depends on the beer? You a high life man? We could get some style pts for rolling rock.
It is going on an airsoft, and I give the guy props for wanting to build his own. All kidding aside, for an airsoft the BSA would pretty cool. "those things hurt at close range, my 11 yr old has one and did a Chuck Connors on me for saying her wavvy locks reminded me of Medusa." Girls are so sensitive. She's the mean one, I told her older sister she looked like Braveheart with her make-up and she just rolled her eyes at me. I'm thinking my kids may need therapy at some point. Edited by neilbilly - March/15/2010 at 23:28 |
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If God didn't want me to play with it, he'd of made my arms shorter.
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