lar45
10-14-2008, 03:32 AM
Hi everybody, life's been busy and it's been awhile since I've stopped by here.
Sometimes I take on charity work for a friend that works at a local gun shop and build gun parts that can no longer be found. Some aren't too bad, like a hammer for a French semi auto pistol that some guy's Grandpa brought back from the war...
This last one was a huge PITA. I tried sending it back but have a hard time saying NO. lol
The patient was a Tikka 412 over under 12 ga shotgun suffering from a broken ejector.
It took more than just a little time to measure and sketch the dimensions, angles contours...
http://www.lsstuff.com/temp/ejector-01.jpg
I ordered a piece of 5/8" square 4140 and started whittleing away at it. My Smithy really wasn't up to the task. I had to cut everything a little on the large side, then file and stone to the final dimensions.
Putting a small round pin on the end of the ejector was kind of stressfull. After all of the hours getting things cut to that point, I didn't want to mess it all up by either getting the pin in the wrong spot or cut out of round.
I have Mach II running on a PC and things were going fairly smooth, takeing many cuts going down .001" at a time. Then the PC rebooted while it was takeing a final cut on the round pin !!!!(*&%&!!
I was able to get the Z axis up fairly quick and it only suffered a minor blemish.
http://www.lsstuff.com/temp/ejector-04.jpg
http://www.lsstuff.com/temp/ejector-03.jpg
At this point, I parted it off from the square stock and went to smokeing and stoneing to get it into the the gun.
http://www.lsstuff.com/temp/ejector-05.jpg
After the first fitting, I heated to red and quenched in oil. I left the tang long so I could hold onto it with vise grips and get the rest of it hardened.
I switched to a smooth stone to take out any rough spots and got the part working very smoothly with zero slop.
http://www.lsstuff.com/temp/ejector-02.jpg
The ejector plunger was missing, so I turned one out of music wire round stock to match the one that was still in the gun.
Once together it worked perfectly through a box of shells and didn't need any touch up at all.
http://www.lsstuff.com/temp/ejector-06.jpg
When I took it back to the shop, the guy gave it a once over and said, now which one did you build? I guess that's a good sign :)
I was pleased with how it turned out and appearantly they were also, as the check they sent was for more than the original quote. :)
Sometimes I take on charity work for a friend that works at a local gun shop and build gun parts that can no longer be found. Some aren't too bad, like a hammer for a French semi auto pistol that some guy's Grandpa brought back from the war...
This last one was a huge PITA. I tried sending it back but have a hard time saying NO. lol
The patient was a Tikka 412 over under 12 ga shotgun suffering from a broken ejector.
It took more than just a little time to measure and sketch the dimensions, angles contours...
http://www.lsstuff.com/temp/ejector-01.jpg
I ordered a piece of 5/8" square 4140 and started whittleing away at it. My Smithy really wasn't up to the task. I had to cut everything a little on the large side, then file and stone to the final dimensions.
Putting a small round pin on the end of the ejector was kind of stressfull. After all of the hours getting things cut to that point, I didn't want to mess it all up by either getting the pin in the wrong spot or cut out of round.
I have Mach II running on a PC and things were going fairly smooth, takeing many cuts going down .001" at a time. Then the PC rebooted while it was takeing a final cut on the round pin !!!!(*&%&!!
I was able to get the Z axis up fairly quick and it only suffered a minor blemish.
http://www.lsstuff.com/temp/ejector-04.jpg
http://www.lsstuff.com/temp/ejector-03.jpg
At this point, I parted it off from the square stock and went to smokeing and stoneing to get it into the the gun.
http://www.lsstuff.com/temp/ejector-05.jpg
After the first fitting, I heated to red and quenched in oil. I left the tang long so I could hold onto it with vise grips and get the rest of it hardened.
I switched to a smooth stone to take out any rough spots and got the part working very smoothly with zero slop.
http://www.lsstuff.com/temp/ejector-02.jpg
The ejector plunger was missing, so I turned one out of music wire round stock to match the one that was still in the gun.
Once together it worked perfectly through a box of shells and didn't need any touch up at all.
http://www.lsstuff.com/temp/ejector-06.jpg
When I took it back to the shop, the guy gave it a once over and said, now which one did you build? I guess that's a good sign :)
I was pleased with how it turned out and appearantly they were also, as the check they sent was for more than the original quote. :)