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All Springer/NP/PCP Air Gun Discussion General > 3D printing and files

3D Prints of my Bob's Boattails

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rsterne:
As most of you are aware, over many years I have been developing my “Bob’s Boattails” Airgun Slugs.  As a project for my new 3D Printer, I decided to make myself a display of the six basic designs.  They are from 1.5 to 4.0 calibres long, and scalable to any calibre.  Moulds for several of these are available from NOE Bullet Moulds, and I thank Al Nelson for making that opportunity available, to increase the slug designs available to airgunners. I would also like to thank Miles Morris for the suggestions he offered which led to these specific shapes.
 
 
 
The tallest model shown is just over 8” high.  I used the .257 calibre drawings as the basis, and the resolution of the prints is each 0.2mm thick layer equals 0.001” of length.  They are just over 2” in diameter.  They will be displayed in a place of pride in my Living Room, and I thought I should share them with you.
 
Bob

SwampHunter:
that is just plain awesome Bob, thanks for sharing!

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