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  1. N

    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    Converting a Ski Pole to a Stock! I knew I was going to cut the sticks at the portion where it would be a uniform diameter, altho the black and white portions obviously have different diameters. I designed the mounting block in several pieces. The first was a piece to attach to the pole...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    No I agree, that is a very fair price. I love the robust after market for this pistol. On the other hand, certainly one must notice that I have made my own unit. Cost me about 1 hour in design and prototype time, maybe a dime in materials, $10 in screws. Also, I am making my stock from a...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    Lots of awesome products out there. @Airtillery, send me some measurements and I'll print you a shim if you'd like. Just to make sure my block worked with off-the-shelf parts, I picked up a 5KU folding stock from evike, and mounted it: Works great! Solid in all directions. BTW, it’s a...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    I'm not going to lie, that system @Squirrel hunter is pretty BOMB! But also kindof pricey. Also, definitely love the look and feel of the stock grip. Anyway, @TiPascal for sure, I would love to add a mounting point, but I am trying to keep this pistol completely stock unmodified...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    Finally, the Receiver Block! Hot off the printer (PLA+, filament temp of 210c, bed temp 65c, 100% infill, printed vertically with support structures, print time ~ 3 hours). Mounted up: Side view: Angled sideview, where you can see how the standoff and screws all go...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    Finally, the Receiver Block! I designed my receiver block in layers: The first layer was the interface to the back of the pistol, through the height of the standoff bolts: The next layer was the body of the block, from the tops of the standoff bolts, with additionally height to...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    @sb327 Absolutely its a consideration. I went with a reputable supplier, Mcmaster-carr, which has been around forever, has the specs to the aluminum in the link. Feels to me most of the stock GK1 is made from aluminum. But I am not a machinist. However, I would certainly trust material from...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    Nice. I've printed the shorty and the medium. Back to my Standoff modifications: In order to get some cleaner and precise modifications to my standoffs, I went ahead and printed some jigs: That’s one of the cool aspects of having a 3d printer. These jigs took me 10 minutes to...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    I would love to be able to machine aluminum, but you use the tools you got! 2 problems with my standoff plan, regarding the standoffs themselves: I could only find hex standoffs. Solution: sand down the hex profile I need a way to back the standoffs off, should I ever want to remove them to...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    And here was the plan: The M5 standoff replaces the stock M5 screw--the standoff portion acts as the screw head, holding the endplate to the pistol. All metal all strong. The endplate takes all the air pressure just like the stock pistol. Now my adapter block gets attached to the backside...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    Side excursion: My main background is in building custom PC cases, from scratch, and we do this all the time in modding. Motherboards are typically mounted using a threaded standoff. Standard motherboard standoffs, typically M3 or 6-32. The standoff screws into your motherboard tray. The...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    Option#2 I’m going to try something else! My thought was this: I am just looking attachment points for an adapter block. I considered: is there a way to have this be a M5 screw, but also be an attachment point: The answer: Threaded standoffs!
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    Option#1 Print it stronger To summarize: To make a strong mounting block I would at the very least recommend a solid print of PLA+. And don’t ignore any lube leaking from this seam:
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    I do my design work on Sketchup pro, which is not generally the chosen tool. Sketchup is more for architectural work. But it is so easy and fun to use, and there are so many resources out there. For example, when I was designing my fill port plug, I literally just googled "Sketchup how to...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    Thanks all! We are all here because we love the shooting the GK1! I can totally see how people on this thread would be like, man just get on with it so you can be actively shooting! Don't worry, these posts lag behind where I am at by about a month. It takes me about an hour to prepare each...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    PS. I was going to say I knew this portion might ruffle a few feathers as there are good products already out there--but that it would only be for a few posts, and then I would be moving on. But honestly, the next thing I did after completing my version of an adapter block...was to make a...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    Considering what happened to my lame thin walled prototype, I felt there were 2 options: 1) Strengthen the print or 2) ?Something else 1) Strengthen the print. The first thing I would do to strengthen the print would be to print in 100% infill. Additionally, according to Prusa, the best...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    I think there is some energy coming out the back of the receiver. Anyways, I hear you guys. This is not the "Here is the quick best way to P2C your GK1" thread. For sure, Moistone's product, or heck have you see the Buck-rail product--go that way. I would also be absolutely shocked if we did...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    So here's what happened next. Even though I knew it was a thin walled prototype, I decided to go ahead and fire the pistol. Well...in addition to the usual pellet launch sounds, there was a distinct, unmistakable, and concerning sound pop of plastic crunch. So I took down my adapter for an...
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    Huben Huben GK1 .22: A Beginner's Journey to a DIY Mini Carbine

    Yes, I continue to be aware that Andrew has a great product out there, as I replied previously (scroll up). I even continue to link to his online shop. My next post, though, (still prepping it), I came across a problem that took me in a different direction. Various posters have brought legit...