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Rifles, Reloading, Optics, Equipment
Gunsmithing
New DIY lightweight stock
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<blockquote data-quote="chalkeye" data-source="post: 1140372" data-attributes="member: 88093"><p>I started with modelling up the action I had, then converted this into a cutting volume - a digital plug I could subtract from any stock design to fit the howa metal:</p><p><img src="http://www.rborrett.com/wp-content/uploads/actioncutter-1024x416.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>This keeps the stock design separate from the action, and means I can tweak the action cutter throughout the prototyping without affecting the stock, and vice-versa. It also means I can theoretically make up another for a different action, and drop it into the same stock design.</p><p></p><p>This is the oldest concept I can find:</p><p><img src="http://www.rborrett.com/wp-content/uploads/cncconstructionps-1024x512.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>The important bit of this design was to split the stock in half. I originally looked at carbon fibre, but rapidly ruled it out due to it being a massive dick to work with, and difficult (and expensive) to make progressive changes. </p><p></p><p>Splitting the stock in half, has a couple of huge advantages:</p><ol> <li data-xf-list-type="ol">The inletting can be machined in one hit from the inside</li> <li data-xf-list-type="ol">It can be hollowed out, and made significantly lighter</li> </ol><p></p><p>I dropped the idea of the carbon fibre foreend pretty quick, but the idea was that it could be a single cavity mold.</p></blockquote><p></p>
[QUOTE="chalkeye, post: 1140372, member: 88093"] I started with modelling up the action I had, then converted this into a cutting volume - a digital plug I could subtract from any stock design to fit the howa metal: [IMG]http://www.rborrett.com/wp-content/uploads/actioncutter-1024x416.jpg[/IMG] This keeps the stock design separate from the action, and means I can tweak the action cutter throughout the prototyping without affecting the stock, and vice-versa. It also means I can theoretically make up another for a different action, and drop it into the same stock design. This is the oldest concept I can find: [IMG]http://www.rborrett.com/wp-content/uploads/cncconstructionps-1024x512.png[/IMG] The important bit of this design was to split the stock in half. I originally looked at carbon fibre, but rapidly ruled it out due to it being a massive dick to work with, and difficult (and expensive) to make progressive changes. Splitting the stock in half, has a couple of huge advantages: [LIST=1] [*]The inletting can be machined in one hit from the inside [*]It can be hollowed out, and made significantly lighter [/LIST] I dropped the idea of the carbon fibre foreend pretty quick, but the idea was that it could be a single cavity mold. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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New DIY lightweight stock
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