MadModder
The Craftmans Shop => Backyard Ballistics => Topic started by: Powder Keg on January 23, 2011, 10:13:11 PM
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A friend has a broken Sako rifle. The part is not available from Sako any more. So I'm going to give it a go. I'll post a picture of the part that I'm making soon. it is connected directly to the firing pin.
I really love running my new shaper!!! Today I ran it for nearly three hours. Time seemed to fly by. Here is the start of my little part. It started out as 1.5" shaft. I roughed out the profile a little on my mill. Then transferred it to my shaper. Once I managed to line everything up and get a tool ground it went really smoothly. My set up wasn't the best, but it worked. I'll send you a picture tomorrow of how it turned out. The ones I took were all blurry?
(http://img.photobucket.com/albums/v652/Powderkeg3418/Seiko001.jpg)
(http://img.photobucket.com/albums/v652/Powderkeg3418/Seiko002.jpg)
I saw a dividing Gizmo one time that had a center built into it. It was made for a shaper. It would have been perfect for this job. To have relief for the tool to clear I had to turn the shaft down to about .425". That made things a little flexy. But I got it. After shaping the outside. I transferred the part back to my mill. I'm working on the rest of the part now.
Stay tuned for more pictures.
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The material is 4340. I wish some of my other pictures turned out this nice. These were strait off the mill. The shaping went really good. This is the second part ever on my new shaper. Most was feeding with the compound, moving the clapper up and down. But I did power feed across the top. It was great!!!(http://img.photobucket.com/albums/v652/Powderkeg3418/Smilies/headgear65-Copy.gif)
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I know what its going to be but wont spoil it.
Theres quite a few others similar, in the past filed up to suit.
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Here are the pictures. A little bit of whittling to find it inside the 1.5" shaft.
(http://img.photobucket.com/albums/v652/Powderkeg3418/Seiko003.jpg)
(http://img.photobucket.com/albums/v652/Powderkeg3418/Seiko004.jpg)
The long piece is the firing pin. The bit on the end is broken. I'm making a new one. I still haven't figured out how to get the pin out? I might be making a new one of those also?
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probably shrink fit...so heat? may have to cut it out
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It was pressed in and had a shoulder that it went against. I think I'm going to use locktight\o/ I have some good stuff :zap:
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Getting there then.
When i think back to all the ones i made from square bar in 4 jaw keeping it straight. Thin stuff has a tendency to taper but have own method learnt from turning Stainless Grade 316S11 down to 3/16" diameter. Just a file job after 1 1/2hrs later out it goes.
Some ejector work is similar as well.
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I've been pretty busy. The part is almost done. I'll snap a picture before I assemble it. I first need to make a tool/thingy to reassemble the spring and keeper? It was apart when I got it. So, I don't know how he got it apart. But it wasn't pretty. I had to stone off some small gouges off the pin.
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Any news?
Figured what you have done, originals in two parts being easier to batch manufacture. No reason why it shouldnt be in one piece, most are.
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Well, I did a pretty lousy job of taking pictures on this project. Sorry about that. I've been pretty busy like usual.
I did get a couple shots of me putting the firing pin back together. It was a pretty tricky job. I don't know how my friend got this thing apart without a little compressor like we made? Here are a couple shots.
(http://img.photobucket.com/albums/v652/Powderkeg3418/Seiko005.jpg)
(http://img.photobucket.com/albums/v652/Powderkeg3418/Seiko006.jpg)
You can see the filed end in the bottom picture. It slid up the ramp really nice!!!
The gun is back together and in the arms of it's happy owner.
I'll try and remember to take more pictures next time :doh:
Wes
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Wes,
Fantastic job, if I remember we used to just put pressure on the small collet retainer that hold the spring yes it does slip off and quick eyes spot what direction this travel................. :Doh:
Kindest Regards
Beagles