tag:blogger.com,1999:blog-1592992209402300549.post1829789955111832997..comments2024-03-28T08:06:43.198-04:00Comments on The Silicon Graybeard: GB-22 Progress is at a CrawlSiGraybeardhttp://www.blogger.com/profile/00280583031339062059noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-1592992209402300549.post-22276303390876139632018-05-27T21:10:20.934-04:002018-05-27T21:10:20.934-04:00I was never able to overcome the excessive losses ...I was never able to overcome the excessive losses and get it to fire reliably, although I did get it to strike quite a bit harder. It never got better than one firing on five drops of the slide. <br /><br />I found that the 3/16" steel I bought for the center of the slide was thinner than the 3/16" steel I got for the frame. I eventually milled the frame down to get it all ".003 to .010 under" the thickness of the center section of the slide. It should be between .185 and .178. It's virtually all there; if anything, it's a little too thin in the middle of the top. <br /><br />It has become a "one of these days" project.<br />SiGraybeardhttps://www.blogger.com/profile/00280583031339062059noreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-50189585848139122812018-05-27T18:59:36.469-04:002018-05-27T18:59:36.469-04:00Decent build! Sounds like you have something robb...Decent build! Sounds like you have something robbing energy from the spring...those are VERY light primer strikes. And the tightness of the screws on the slide shouldn't matter unless you didn't pay attention to Flag Note 3 on G2228000. A quick fix is to pull on the spring to make it's initial length longer.Mark Serbuhttp://www.serbu.comnoreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-13392436170513475232017-05-22T19:12:42.843-04:002017-05-22T19:12:42.843-04:00I have access to bins full of springs of all types...I have access to bins full of springs of all types. Give me a diameter and length so I can find several with different wire gauge and strength (if I locate what you need, will contact for delivery addy.Terrapodhttps://www.blogger.com/profile/01502747070873520107noreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-9913574649804795242017-05-22T01:14:58.246-04:002017-05-22T01:14:58.246-04:00Got my first rifle in 1964. Wasn't long befor...Got my first rifle in 1964. Wasn't long before I took it all apart to figure out what makes it go. Been doing that ever since. Firearms are fascinating in the array of mechanisms you run into. <br />Looks to me like your firing pin strikes are both too weak and too far from the rim. The priming compound needs to be crushed inside the rim.Ownerusnoreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-28201295651133169082017-05-21T12:51:05.505-04:002017-05-21T12:51:05.505-04:00Truth be told, I'm remarkably ignorant about a...Truth be told, I'm remarkably ignorant about all the moving parts in a modern gun. This is a learning experience. <br /><br />It's really the first step in a bunch of expected projects. <br /><br />SiGraybeardhttps://www.blogger.com/profile/00280583031339062059noreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-7712724226857171322017-05-21T12:44:40.238-04:002017-05-21T12:44:40.238-04:00Thanks for the kind words. This project is around...Thanks for the kind words. This project is around 75% learning experience. The mill is capable of breaking shit in an "ohnosecond". Things that would stall my Sherline won't even slow this one down, so I'm learning lots of lessons about fixtures and holding the work. <br /><br />I figure I'll keep learning as long as I keep trying to make things. I just hope to break fewer tools and ruin fewer parts. I have tremendous respect for manual machinists, tool and die makers, and mechanics. <br /><br />The pin's travel is set by the dimensions of the parts. It's glued into the middle piece of the slide, and the length it can move is set by the overall design. It's either losing force due to drag holding it down, or maybe I need a stronger spring. A simple test is to wrap some rubber bands around the slide and the front of the barrel holder. Slam that dude down faster and harder. First, though, I'm going to make sure the frame is free of burrs and crap. <br />SiGraybeardhttps://www.blogger.com/profile/00280583031339062059noreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-88248708537853800352017-05-21T09:21:57.360-04:002017-05-21T09:21:57.360-04:00If you had done the 12 gauge zip gun like I sugges...If you had done the 12 gauge zip gun like I suggested, you wouldn't need no steenkin' springs! And all you need is a solid backing block for the breech and it won't be going nowhere. And it would be far more impressive to your rangemates than a piddly little .22lr...<br />}:-]<br /><br />Glad to see you're making progress!Mark Matisnoreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-34023236263848503782017-05-21T06:17:44.669-04:002017-05-21T06:17:44.669-04:00My boy was into RC (Radio Controlled) cars for a w...My boy was into RC (Radio Controlled) cars for a while. The local shop has all kinds of spring/strut assemblies. They come in many sizes. One nice thing about a strut assembly is that the spring is pre-loaded and contained. It won't go squirting all over the place when you try to assemble it.<br /><br />You might look around and see if you have any RC shops in your area.<br /><br />Eaton Rapids Joehttps://www.blogger.com/profile/09102166969915526172noreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-43775787936870774062017-05-20T23:11:50.655-04:002017-05-20T23:11:50.655-04:00I have to give you major props for even taking on ...I have to give you major props for even taking on this little project in the first place and thank you for sharing your progress.<br /><br />One thing that came to mind when you mentioned that tightening the screws binds the action up is just how similar that is to the gib screws on the compound slide for my mini lathe. There is a fine line there. That also brings to mind many threads and opinions I have since read about dealing with sticky/ binding metal parts that slide against each other.<br />They are myriad to put it mildly but one suggestion I might make would be to oil the hell out of it while running it back and forth twenty or so times. That might give you a "shiny spot" or two to see if it is a high spot giving you trouble. As for the spring, and pin, I'm wondering if the pin is actually traveling far enough?<br /><br />I'm sure you will dink with it and figure it out but I am pretty damn impressed with what you have accomplished already!Philhttps://www.blogger.com/profile/15695733883033137146noreply@blogger.com