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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Picatinny Rails?
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<blockquote data-quote="Razor18" data-source="post: 857070" data-attributes="member: 11395"><p>Hi Guys,</p><p> </p><p> The other day I tried to draw Picatinny with AutoCad, and I am a bit confused about cross secction dimensions. At first look, at least one of them can't be right, even if it sounds ridiculous.</p><p> </p><p> Every drawing says rail width should be 0.835" (let's forget tolerances for simplicity now) with 45 degree angles on both sides, and there must be a cross section within those 45 degrees, with 0.748" width and 0.108 height. Now on any edge (look at drawing at start of topic) try to imagine a virtual triangle, where the horizontal line is half of the difference of the mentioned horizontal dimensions (0.835 - 0.748) / 2 = 0.0435, the vertical line is half of the vertical (0.108 / 2 = 0.054"). Based on these two numbers, the third side of the triangle can definitely not be 45 degrees, because it would require the same dimensions both vertical and horizontal. It must be 45 based ont he drwaing, but then what's wrong? Or wich dimensions can be a bit flexible?</p></blockquote><p></p>
[QUOTE="Razor18, post: 857070, member: 11395"] Hi Guys, The other day I tried to draw Picatinny with AutoCad, and I am a bit confused about cross secction dimensions. At first look, at least one of them can’t be right, even if it sounds ridiculous. Every drawing says rail width should be 0.835” (let’s forget tolerances for simplicity now) with 45 degree angles on both sides, and there must be a cross section within those 45 degrees, with 0.748” width and 0.108 height. Now on any edge (look at drawing at start of topic) try to imagine a virtual triangle, where the horizontal line is half of the difference of the mentioned horizontal dimensions (0.835 - 0.748) / 2 = 0.0435, the vertical line is half of the vertical (0.108 / 2 = 0.054”). Based on these two numbers, the third side of the triangle can definitely not be 45 degrees, because it would require the same dimensions both vertical and horizontal. It must be 45 based ont he drwaing, but then what’s wrong? Or wich dimensions can be a bit flexible? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Picatinny Rails?
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