MadModder
The Craftmans Shop => Backyard Ballistics => Topic started by: Joe d on February 04, 2015, 10:15:59 AM
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An longtime friend of mine can't shoot off-hand worth a damn. During one range session last fall he borrowed a bench rest from
somebody, and after trying it then decided that I needed to make him one, and what the heck, make one for me too. (Nice guy).
So, :proj:
and I got to work....
cut some lengths of allthread, turned, drilled, and tapped each end in the lathe, then milled a square section on one end for the knob
(horrible crap to turn, worse to tap!)
(http://i235.photobucket.com/albums/ee257/240283/DSCN2922_zps194ebce4.jpg) (http://s235.photobucket.com/user/240283/media/DSCN2922_zps194ebce4.jpg.html)
put a length of ali on the mill and cut flutes in it with a ball end cutter (and forgot to take a picture of the set-up) and then set it up in the lathe
and parted them off in turn, and milled the square with a 1/16" end mill
(http://i235.photobucket.com/albums/ee257/240283/DSCN2920_zps4d9c72ac.jpg) (http://s235.photobucket.com/user/240283/media/DSCN2920_zps4d9c72ac.jpg.html)
made up some "top-hat" shaped feet, these are held on with a washer and capscrew inside the "hat" , and then covered the bottom with some
peel and stick non-skid
(http://i235.photobucket.com/albums/ee257/240283/DSCN2923_zps27545901.jpg) (http://s235.photobucket.com/user/240283/media/DSCN2923_zps27545901.jpg.html)
the feet were turned, drilled & tapped, and here we are:
(http://i235.photobucket.com/albums/ee257/240283/100_4856_zps0ddaff8a.jpg) (http://s235.photobucket.com/user/240283/media/100_4856_zps0ddaff8a.jpg.html)
More to come....
Joe
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and the story continues..
turned a chunk of 1018 to a tight fit in the tube I'm using for the body, used the band saw to remove the bulk of the
unwanted metal
(http://i235.photobucket.com/albums/ee257/240283/100_4857_zpsb201d805.jpg) (http://s235.photobucket.com/user/240283/media/100_4857_zpsb201d805.jpg.html)
and then tidied it up on the mill
(http://i235.photobucket.com/albums/ee257/240283/100_4859_zps56e8de93.jpg) (http://s235.photobucket.com/user/240283/media/100_4859_zps56e8de93.jpg.html)
this fitting captures a nut that elevates the cradle, so it needs a top piece, being rounded on the rotary table here
(http://i235.photobucket.com/albums/ee257/240283/100_4861_zps9e0854ee.jpg) (http://s235.photobucket.com/user/240283/media/100_4861_zps9e0854ee.jpg.html)
Took some rectangular tube and milled the ends to fit the main tube and the feet
(http://i235.photobucket.com/albums/ee257/240283/100_4911_zpsac871eec.jpg) (http://s235.photobucket.com/user/240283/media/100_4911_zpsac871eec.jpg.html)
at this point, filed chamfers on every edge that needed to be welded, stuck it all together with counter-sunk fasteners, and
called in a favour owed by the maintenance guy at work, who welded it all up for me.
(http://i235.photobucket.com/albums/ee257/240283/DSCN2930_zps416cee9c.jpg) (http://s235.photobucket.com/user/240283/media/DSCN2930_zps416cee9c.jpg.html)
almost done....
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and last installment:
the cradle is a bit of channel, with a length of allthread screwed in and then welded to the bottom, with a sand-bag laced on.
Turned the captive nut from 12L14, knurled it, made up some bronze washers for it to ride on, did some filing, a little filler here and
there, primer, top coat (rattle can hammered finish)
and here we are.
(http://i235.photobucket.com/albums/ee257/240283/DSCN2937_zps201085b5.jpg) (http://s235.photobucket.com/user/240283/media/DSCN2937_zps201085b5.jpg.html)
Now I will finally get back to the traction engine that has been patiently waiting for me..... :wack:
Cheers all, Joe
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You did a nice job there Joe :bow:
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Thanks Sid.