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Wow. That is probably the coolest child's toy ever. Besides maybe a mini AR15 haha. Amazing work. I'm sure that thing goes places some fullsize jeeps can't.
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How do you feel about adopting a 36yo kid? You've got to be the coolest dad ever...
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Quoted: Sorry, guys, haven't devoted any time to this project lately. It still stands where it did; completed, but unable to achieve ignition. I'll get to it, but I had another overdue project gobble up June & July, this one for the kids: http://i110.photobucket.com/albums/n117/Hunter2506/RC/Power%20Wheels/74d9aa8f-0657-4afe-a512-8a4a8a53c3cf_zpsmad4rqu8.jpg http://i110.photobucket.com/albums/n117/Hunter2506/RC/Power%20Wheels/IMG_20150808_180548689_zps8bgullfp.jpg Yes, the entire 4WD, 4-link suspension chassis was scratch built, including axles. Of course I bought the motor cans, heim joints, tires & wheels, brake calipers, etc. I may be a bit mad scientist, but I'm not crazy. Some things aren't worth the effort to build vs. buy. Anyway, summer months also tend to be more about shooting the guns than building them, as well as camping, wheelin', dirt biking, BBQs, etc. When cooler weather and shorter days set in, I spend more of my free time in the shop. Rest assured, this thing will fire. I just needed a break from it, and have a lot of other things going on. View Quote Your 4WD project reminds me of the guy on here who built his kid a "spaceship" where all the lights, switches and all worked and did something... |
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Well that is a bit sporty of your rifle.
Have you looked at other off the shelf designs to see how they do it? I know that the 10/22 and 597 don't use a feed ramp in the barrel but instead make the cartridge tip up/feed integral to the magazine design. |
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Thanks for the update Sixtysix, I wish I had some input that would help you out..
I'm sure you'll get it though. |
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Quoted: Sorry, guys, haven't devoted any time to this project lately. It still stands where it did; completed, but unable to achieve ignition. I'll get to it, but I had another overdue project gobble up June & July, this one for the kids: http://i110.photobucket.com/albums/n117/Hunter2506/RC/Power%20Wheels/74d9aa8f-0657-4afe-a512-8a4a8a53c3cf_zpsmad4rqu8.jpg http://i110.photobucket.com/albums/n117/Hunter2506/RC/Power%20Wheels/IMG_20150808_180548689_zps8bgullfp.jpg Yes, the entire 4WD, 4-link suspension chassis was scratch built, including axles. Of course I bought the motor cans, heim joints, tires & wheels, brake calipers, etc. I may be a bit mad scientist, but I'm not crazy. Some things aren't worth the effort to build vs. buy. Anyway, summer months also tend to be more about shooting the guns than building them, as well as camping, wheelin', dirt biking, BBQs, etc. When cooler weather and shorter days set in, I spend more of my free time in the shop. Rest assured, this thing will fire. I just needed a break from it, and have a lot of other things going on. View Quote Did you have a build thread on this? Where did you source the tires and wheels? My kiddo has outgrown this one: And I was considering trying to fab something for him with a bit more oomph (and non-plastic tires!). |
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Thanks for the update. Life always trumps hobbies, just let us know when you get another update we will all be waiting. Awesome work BTW!
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I've been subbed to this thread since it started. Every time I see it bumped I get excited to see something new. Deeply disappointed, but we can't let it die. I did see sixtysixduece's team membership expired. I forget who did it, but I do know it was gifted. Perhaps we need to start a gofundme
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Every time I see it bumped I get excited to see something new. Deeply disappointed, but we can't let it die View Quote Sorry 'bout that Fall was quite busy with work, and trying to get prepped for an expected ugly winter. I had to make repairs to my home from the summer weather, and also repair and upgrades to both my Ram Charger and my Deuce, which included building a custom hard top for the deuce, and a custom plow mount for the 12' CDOT plow I scored. Then enter November, things with family life came to a head, and I'm currently in the process of getting the now-ex's junk out of my house and sorting parenting time with my son and all those other fun details of a split with kids involved. Additionally, I let a guy handle the little gun, and he carelessly forced the receiver halves together on the bolt release knob, snapping it off So now I have to redo that as well. Progress on this has come to a screeching halt, and it pains me as well. But alas, superfluous fun projects take a back seat to serious life matters. We'll get back to it, but I don't have an estimated time frame right now. |
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Quoted: Sorry 'bout that Fall was quite busy with work, and trying to get prepped for an expected ugly winter. I had to make repairs to my home from the summer weather, and also repair and upgrades to both my Ram Charger and my Deuce, which included building a custom hard top for the deuce, and a custom plow mount for the 12' CDOT plow I scored. Then enter November, things with family life came to a head, and I'm currently in the process of getting the now-ex's junk out of my house and sorting parenting time with my son and all those other fun details of a split with kids involved. Additionally, I let a guy handle the little gun, and he carelessly forced the receiver halves together on the bolt release knob, snapping it off So now I have to redo that as well. Progress on this has come to a screeching halt, and it pains me as well. But alas, superfluous fun projects take a back seat to serious life matters. We'll get back to it, but I don't have an estimated time frame right now. View Quote View All Quotes View All Quotes Quoted: Every time I see it bumped I get excited to see something new. Deeply disappointed, but we can't let it die Sorry 'bout that Fall was quite busy with work, and trying to get prepped for an expected ugly winter. I had to make repairs to my home from the summer weather, and also repair and upgrades to both my Ram Charger and my Deuce, which included building a custom hard top for the deuce, and a custom plow mount for the 12' CDOT plow I scored. Then enter November, things with family life came to a head, and I'm currently in the process of getting the now-ex's junk out of my house and sorting parenting time with my son and all those other fun details of a split with kids involved. Additionally, I let a guy handle the little gun, and he carelessly forced the receiver halves together on the bolt release knob, snapping it off So now I have to redo that as well. Progress on this has come to a screeching halt, and it pains me as well. But alas, superfluous fun projects take a back seat to serious life matters. We'll get back to it, but I don't have an estimated time frame right now. Don't worry, we won't let this thread go into the archives! |
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Glad I refound this. Coolest project.
You're gonna have to change that optic out, though. Don't want any of that zero drift |
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Quoted:
Glad I refound this. Coolest project. You're gonna have to change that optic out, though. Don't want any of that zero drift View Quote Just send it to EOTech for a refund. We all wanted a mini T1 anyways We'll be here OP, take care of life, heck vent here, we'll be your therapists. What else is ARF for. |
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Saw this slipping in my subscriptions, thought I would do something about it.
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Well, we've made some progress. I set the barrel back and re-cut chamber, faced off the bolt and made a new, longer firing pin. Took it out and test fired, blew a case. So I pulled it back apart, inserted a piece of 5/16" carbide cutter shank in the back of the bolt, and drilled the buffer for a piece of 1/4" carbide shank, TIG welded over them to keep them in place. Took it out and fired 4 times, and though the cases are a little ballooned, no ruptures. However, I have not yet decided exactly how I want to do the extractor this time, so the cases are coming out of the chamber and getting smashed by the bolt. Also, while the bolt is coming back far enough to set the hammer, I don't think it's enough to strip a new round, so gotta keep playing with spring. But we're getting there!
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Quoted:
Well, we've made some progress. I set the barrel back and re-cut chamber, faced off the bolt and made a new, longer firing pin. Took it out and test fired, blew a case. So I pulled it back apart, inserted a piece of 5/16" carbide cutter shank in the back of the bolt, and drilled the buffer for a piece of 1/4" carbide shank, TIG welded over them to keep them in place. Took it out and fired 4 times, and though the cases are a little ballooned, no ruptures. However, I have not yet decided exactly how I want to do the extractor this time, so the cases are coming out of the chamber and getting smashed by the bolt. Also, while the bolt is coming back far enough to set the hammer, I don't think it's enough to strip a new round, so gotta keep playing with spring. But we're getting there! View Quote Well thanks for the update |
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Quoted:
Well, we've made some progress. I set the barrel back and re-cut chamber, faced off the bolt and made a new, longer firing pin. Took it out and test fired, blew a case. So I pulled it back apart, inserted a piece of 5/16" carbide cutter shank in the back of the bolt, and drilled the buffer for a piece of 1/4" carbide shank, TIG welded over them to keep them in place. Took it out and fired 4 times, and though the cases are a little ballooned, no ruptures. However, I have not yet decided exactly how I want to do the extractor this time, so the cases are coming out of the chamber and getting smashed by the bolt. Also, while the bolt is coming back far enough to set the hammer, I don't think it's enough to strip a new round, so gotta keep playing with spring. But we're getting there! View Quote Glad to hear you're making some progress! Maybe some more weight than you've already added in the bolt and buffer to slow it down and a lighter spring pressure? That would delay the blowback a bit more I would think. |
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Quoted: Well, we've made some progress. I set the barrel back and re-cut chamber, faced off the bolt and made a new, longer firing pin. Took it out and test fired, blew a case. So I pulled it back apart, inserted a piece of 5/16" carbide cutter shank in the back of the bolt, and drilled the buffer for a piece of 1/4" carbide shank, TIG welded over them to keep them in place. Took it out and fired 4 times, and though the cases are a little ballooned, no ruptures. However, I have not yet decided exactly how I want to do the extractor this time, so the cases are coming out of the chamber and getting smashed by the bolt. Also, while the bolt is coming back far enough to set the hammer, I don't think it's enough to strip a new round, so gotta keep playing with spring. But we're getting there! View Quote |
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Glad to see you make some progress with this.
Thank you for the update!!! |
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Any update?
Sorry for those who are subbed and got excited seeing the bump. |
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Hate to say it, but this is starting to sound like the actual problem might be the cartridge itself?
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Quoted:
Not really. I've put quite a few more rounds through it, but the hammer spring power issue still isn't resolved. It's not forgotten about, but I'm not sure how I want to tackle that yet, short of paying a spring manufacturer several hundred dollars (yes, that's what it would cost for the first one, each additional being quite cheap of course) Nah. They feed and eject (even without extractor). It's the issue with getting ignition that has bee such a hurdle. Springs don't scale well. I've remade the thing dozens of times with various diameters of music wire, further relieved the hammer to get an extra coil, but in the end it may well take a custom spring that I lack the equipment and spring making knowledge to build on my own. As such, this critter has taken a back seat so I could get started on my next build. Been designing it in my head for months, started drafting it a few weeks ago, and the 6/4 Ti receiver just started to take shape today: http://i110.photobucket.com/albums/n117/Hunter2506/Machining%20projects/IMG_1646_zpsh9d0pjre.jpg Ya'll are gonna have to take some guesses based on that piece before I tell ya what it's gonna be, though View Quote View All Quotes View All Quotes Quoted:
Any update? Not really. I've put quite a few more rounds through it, but the hammer spring power issue still isn't resolved. It's not forgotten about, but I'm not sure how I want to tackle that yet, short of paying a spring manufacturer several hundred dollars (yes, that's what it would cost for the first one, each additional being quite cheap of course) Hate to say it, but this is starting to sound like the actual problem might be the cartridge itself? Nah. They feed and eject (even without extractor). It's the issue with getting ignition that has bee such a hurdle. Springs don't scale well. I've remade the thing dozens of times with various diameters of music wire, further relieved the hammer to get an extra coil, but in the end it may well take a custom spring that I lack the equipment and spring making knowledge to build on my own. As such, this critter has taken a back seat so I could get started on my next build. Been designing it in my head for months, started drafting it a few weeks ago, and the 6/4 Ti receiver just started to take shape today: http://i110.photobucket.com/albums/n117/Hunter2506/Machining%20projects/IMG_1646_zpsh9d0pjre.jpg Ya'll are gonna have to take some guesses based on that piece before I tell ya what it's gonna be, though Milled AK. |
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Quoted:
Looks like a break action receiver to me. View Quote View All Quotes View All Quotes Quoted:
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Ya'll are gonna have to take some guesses based on that piece before I tell ya what it's gonna be, though Looks like a break action receiver to me. Yep, looks like an H&R receiver to me. |
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Quoted:
Not really. I've put quite a few more rounds through it, but the hammer spring power issue still isn't resolved. It's not forgotten about, but I'm not sure how I want to tackle that yet, short of paying a spring manufacturer several hundred dollars (yes, that's what it would cost for the first one, each additional being quite cheap of course) Nah. They feed and eject (even without extractor). It's the issue with getting ignition that has bee such a hurdle. Springs don't scale well. I've remade the thing dozens of times with various diameters of music wire, further relieved the hammer to get an extra coil, but in the end it may well take a custom spring that I lack the equipment and spring making knowledge to build on my own. As such, this critter has taken a back seat so I could get started on my next build. Been designing it in my head for months, started drafting it a few weeks ago, and the 6/4 Ti receiver just started to take shape today: http://i110.photobucket.com/albums/n117/Hunter2506/Machining%20projects/IMG_1646_zpsh9d0pjre.jpg Ya'll are gonna have to take some guesses based on that piece before I tell ya what it's gonna be, though View Quote View All Quotes View All Quotes Quoted:
Any update? Not really. I've put quite a few more rounds through it, but the hammer spring power issue still isn't resolved. It's not forgotten about, but I'm not sure how I want to tackle that yet, short of paying a spring manufacturer several hundred dollars (yes, that's what it would cost for the first one, each additional being quite cheap of course) Hate to say it, but this is starting to sound like the actual problem might be the cartridge itself? Nah. They feed and eject (even without extractor). It's the issue with getting ignition that has bee such a hurdle. Springs don't scale well. I've remade the thing dozens of times with various diameters of music wire, further relieved the hammer to get an extra coil, but in the end it may well take a custom spring that I lack the equipment and spring making knowledge to build on my own. As such, this critter has taken a back seat so I could get started on my next build. Been designing it in my head for months, started drafting it a few weeks ago, and the 6/4 Ti receiver just started to take shape today: http://i110.photobucket.com/albums/n117/Hunter2506/Machining%20projects/IMG_1646_zpsh9d0pjre.jpg Ya'll are gonna have to take some guesses based on that piece before I tell ya what it's gonna be, though Over and under in 22LR For these little guys |
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OP. Log out and back in again. Thanks for all the help you give people on this site, and thank you for updating this thread.
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OP. Log out and back in again. Thanks for all the help you give people on this site, and thank you for updating this thread. View Quote Thank you! Over and under in 22LR View Quote It is an over/under, but this is not a miniature. Will be .45 Colt & .410 ga. with 10" barrels. I've been wanting to make something that is mostly titanium and aluminum, and scored a couple of these barrels awhile back. They weigh just 6.8 oz each, and the only other steel will be internal parts. The barrel block and front clamp will also be Ti, the grip frame 7075-T651, and I've got some 4mm carbon fiber for the grip panels. Finish will be natural. Kind of a post-modern cross between Derringer and Howda. |
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Quoted:
It would, but short of remaking the buffer out of pure tungsten or iridium, I've added as much weight as possible to the reciprocating parts. Having said that, I don't really care if the cases are bulged, so long as they're not rupturing. After all, I'm not reloading .17 HM2 I did tinker a bit more last night, got some improvement. I clipped three more coils off the buffer spring and stretched it slightly, and out of a dozen rounds fired, only one got caught by the bolt. For the last five shots, I had the magazine inserted; it chambered a fresh round for 3 of those. Of the two failures, one was the result of that fired case not leaving, the other appeared a short stroke, the bolt hanging on a round it was trying to feed and deforming it. I do, however, still have a hammer spring power problem. Only once did I get ignition on the first strike, all the rest required a second. I'm not yet sure how to deal with this, but I'll get it eventually. http://i110.photobucket.com/albums/n117/Hunter2506/Machining%20projects/IMG_1625_zpsod9xbpgj.jpg http://i110.photobucket.com/albums/n117/Hunter2506/Machining%20projects/IMG_1626_zpssyp94590.jpg View Quote View All Quotes View All Quotes Quoted:
Maybe some more weight than you've already added in the bolt and buffer to slow it down and a lighter spring pressure? That would delay the blowback a bit more I would think. It would, but short of remaking the buffer out of pure tungsten or iridium, I've added as much weight as possible to the reciprocating parts. Having said that, I don't really care if the cases are bulged, so long as they're not rupturing. After all, I'm not reloading .17 HM2 I did tinker a bit more last night, got some improvement. I clipped three more coils off the buffer spring and stretched it slightly, and out of a dozen rounds fired, only one got caught by the bolt. For the last five shots, I had the magazine inserted; it chambered a fresh round for 3 of those. Of the two failures, one was the result of that fired case not leaving, the other appeared a short stroke, the bolt hanging on a round it was trying to feed and deforming it. I do, however, still have a hammer spring power problem. Only once did I get ignition on the first strike, all the rest required a second. I'm not yet sure how to deal with this, but I'll get it eventually. http://i110.photobucket.com/albums/n117/Hunter2506/Machining%20projects/IMG_1625_zpsod9xbpgj.jpg http://i110.photobucket.com/albums/n117/Hunter2506/Machining%20projects/IMG_1626_zpssyp94590.jpg I made mention about stretching a spring on here before and people lost their shit. |
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I made mention about stretching a spring on here before and people lost their shit View Quote It depends on what you're trying to do. Generally speaking, it's a bad idea; it weakens the spring. In this case, though, that is exactly what I was trying to accomplish. |
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It depends on what you're trying to do. Generally speaking, it's a bad idea; it weakens the spring. In this case, though, that is exactly what I was trying to accomplish. View Quote View All Quotes View All Quotes Quoted:
I made mention about stretching a spring on here before and people lost their shit It depends on what you're trying to do. Generally speaking, it's a bad idea; it weakens the spring. In this case, though, that is exactly what I was trying to accomplish. Stretching a spring will yield the metal, but it also adds preload to the previous normal state. Ideally you can take your current spring and put a scale under it and press it to find the k value and use that to find a new spring. |
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Just a thought, but you could slow down extraction and maybe not balloon the cases by adding very minor dimples to the chamber.
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