Re: 3D Printed Kit - Cosmo Dragoon - New Pics post #42
Matt009 pointed some good details.
Here is what I can add:
I bought blackpowder guns to make comparations:
-1848 dragoon, first or second issue
what is right:
-square trigger guard
-shape of cylinder notches
-cylinder lenght, close to barrel base lenght
what is wrong:
-barrel lengh
-the frame height, too weak
-the shape of the barrel entry, no way to make a accurate design
-the cylinder is too short compared to the frame, near a 1cm gap.
-the lever is totally wrong, from beginning to end
-1847 colt walker
what is wrong:
-barrel entry lenght, 8cm long instead of 6, so, longer than the cylinder
-lever end and attachment, in fact the cosmodragoon design has a colt walker lever base and a 1851 navy lever end and similar to colt navy attachment
-handle top, not a straight assembly, but rounded shape
what is right:
-lenght and shape of cylinder,
-shape of the frame
-lenght of the barrel
-shape of the barrel base
-all correct details on dragoon too
once shortened, it's also possible to redrill it for a good lever axle position, and shape, to match the cosmodragoon, once modified the handle has a correct look and shape, I think the barrel defects will disappear once I will modify it on the lathe.
- the gap between barrel and cylinder-frame was also quite easy to modifiy, keeping most of accurate details between we can see on "real" cosmodragoon.
You can see on the VICE gun they filled the gap between barrel and cylinder creating a wrong assembly design.
you can also have a quick comparition with the taito gun.
Here you can see a larger picture of the best available screenshot:
you can see the frame height, and how the barrel and frame-cylinder meet together, making a straight line.
you can also see the lever base (walker) lever end (1851 navy), barrel lenght, barrel base shape,, the cylinder and barrel base have quite similar lenght, but depending on pictures, the barrel base is sometimes longer, depending on pictures, I would choose a cylinder lenght between 5 and 6 cm.
The barrel maximum diameter is about ⅓ of the cylinder, and it's easy to see the "cap n ball" technology replicated on the picture.
Once you have seen this picture, it's easy to virtually just add the conical end to the real walker barrel, adding 3 cm on barrel and 4 cm with the additionnal part on handle, and you get a 46cm cosmodragoon.
The walker is 39cm long, the dragoon is about 33 cm long if my memory is correct.
Here is my actual work, first view is virtual modification:
Quite "easy" to do, except soldering on frame.
here is my actual work:
You can see the guard trigger is not accurate on matsumoto's design, as the cylinder notches position
What I qee as wrong on your design:
-the 2 bolts on bottom are too big.
About the cosmodragoon, there is actually no view of the bolts, each view I have seen doesn't show the bolt heads, so, no way to know on which side they are, so I assume your design is correct, as mine, as the real colt design is, as it is on each existing replica.
-the lever base shape is not correct compared to the best available screenshot.
-the diameter ration between barrel and cylinder is closer to ½ I think the cylinder is too weak.
-the ratio between barrel end and central piece is not correct the central piece is too narrow
-the barrel base is not correct, sections are not rounded and the bevel is missing
-the "cap'nball" are missing on the cylinder, and the design is wrong
I especially like your skull and bones emblem, very nice design