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    Sent ya an email Doc

    Sent from my SM-G970U1 using Tapatalk

    "What could go wrong?" - Sethzilla!

    Member of WORR BOYZ pump paintball team
    Playing since 1986: Stock, Pump, Mech, Electro, tourney, but now mostly rec.

    Feedback:
    https://www.mcarterbrown.com/forum/b...lla-s-feedback

    WTB:
    https://www.mcarterbrown.com/forum/b...-wtb-wgp-parts

    Comment


      Sent you an email as well Doc

      Comment


        Replied and replied! Thank you!

        Doc.
        Doc's Machine & Airsmith Services: Creating the Strange and Wonderful since 1998!
        The Whiteboard: Daily, occasionally paintball-related webcomic mayhem!
        Paintball in the Movies!

        Comment


          Replied back as well Doc.

          Sent from my SM-G970U1 using Tapatalk

          "What could go wrong?" - Sethzilla!

          Member of WORR BOYZ pump paintball team
          Playing since 1986: Stock, Pump, Mech, Electro, tourney, but now mostly rec.

          Feedback:
          https://www.mcarterbrown.com/forum/b...lla-s-feedback

          WTB:
          https://www.mcarterbrown.com/forum/b...-wtb-wgp-parts

          Comment


            I'm... not sure what's going on, as I have no reply yet from 'Zilla, and, while I don't know what your email address is, Riot, I was pretty sure I'd replied to every VT-related email I've received.

            Can't really "check my spam folder", as spam is stopped at the server.

            Doc.
            Doc's Machine & Airsmith Services: Creating the Strange and Wonderful since 1998!
            The Whiteboard: Daily, occasionally paintball-related webcomic mayhem!
            Paintball in the Movies!

            Comment


              Sent a new email to ya Doc. Maybe the server is blocking multiple reply emails as Spam before you even see them.

              Sent from my SM-G970U1 using Tapatalk

              "What could go wrong?" - Sethzilla!

              Member of WORR BOYZ pump paintball team
              Playing since 1986: Stock, Pump, Mech, Electro, tourney, but now mostly rec.

              Feedback:
              https://www.mcarterbrown.com/forum/b...lla-s-feedback

              WTB:
              https://www.mcarterbrown.com/forum/b...-wtb-wgp-parts

              Comment


              • Lt. head-shot

                Lt. head-shot

                commented
                Editing a comment
                Oh that might be a possibility. I sent a few messages in reply that I did not hear back on. But I assumed the bear was just busy!

              • Chuck E Ducky

                Chuck E Ducky

                commented
                Editing a comment
                I also had trouble the first time I messaged you Doc. I thought I had the wrong email at first that’s why I messaged you threw MCB as well. They seem to be going threw for me now, and I did have the right email. But something might need an update. Your fire wall may be restricting certain email providers because I emailed you threw two different email accounts. Just don’t want you missing out on work because of it.

              • Jordan

                Jordan

                commented
                Editing a comment
                I've tried the new email approach, didn't seem to work. Doc did explain that no replies often mean either no progress or too busy to check mail.

                However, I'm just waiting for a tracking number.... I'm hoping I get the part before I try another email.

              Well I'm not sure what's going on with my emails not getting through, so I've also tried sending a PM here for ya DocsMachine

              Sent from my SM-G970U1 using Tapatalk

              "What could go wrong?" - Sethzilla!

              Member of WORR BOYZ pump paintball team
              Playing since 1986: Stock, Pump, Mech, Electro, tourney, but now mostly rec.

              Feedback:
              https://www.mcarterbrown.com/forum/b...lla-s-feedback

              WTB:
              https://www.mcarterbrown.com/forum/b...-wtb-wgp-parts

              Comment


                Part 2!



                And yes, I owe a ton of replies. It's been a busy week!

                All I can say right now is thanks for your patience!

                Doc.
                Doc's Machine & Airsmith Services: Creating the Strange and Wonderful since 1998!
                The Whiteboard: Daily, occasionally paintball-related webcomic mayhem!
                Paintball in the Movies!

                Comment


                  Awesome!

                  Comment


                    First off, my usual form-letter apology:

                    I... I ran out of gas. I... I had a flat tire. I didn't have enough money for cab fare. My tux didn't come back from the cleaners. An old friend came in from out of town! Someone stole my car! There was an earthquake! A terrible flood! Locusts! IT WASN'T MY FAULT, I SWEAR TO GOD!

                    [sobs]



                    Seriously, I've had a lot on my plate lately, including trying like mad to get my taxes done in time, plus a maybe-a-little-unusually-large number of walk-in jobs, from Harley fixes (our week-long riding season is coming up shortly) to fishing boat parts. (I'm hoping this means everyone is finally getting to their stuff early, and that this doesn't mean they're going to flood me with work in June, the usual 28 minutes before the season opens.)

                    But, I've still managed to sneak in some 'Twin work here and there.

                    I got the first four standard pump rods made:





                    Two others are getting pumped, which means longer rods, and the last two are halfblocks which will also have to be custom fitted.

                    This was actually a bit of a delay right here, as I wasted a great deal of time trying to get my CNC lathe to cut the threads. After way too long trying to get the program to work (hey, I'm still really new at this, okay? ) I was never able to get an acceptable thread.

                    It's kind of tricky- the stainless wants a minimum amount of cut, else it "rubs" and work-hardens. But, the rod is thin enough it deflects- you can actually see it bend away from the cutter slightly. This is a case where I have to have my speeds and feeds pretty much exactly right, and I think I need better threading inserts. One of these days I'm going to have to call up a Sanvik dealer or similar, and invest in a pack of some top-notch stuff.

                    Anyway, the "fix", at least for the moment, was to thread 'em on the manual lathe, to close to size, then I just finished with a standard die. That produced a good, clean, acceptable thread.

                    I was also able to get the detent holes drilled and tapped...



                    Got the bolt blanks turned down to size...



                    And the grabby-end profile cut...



                    And ready for finishing to length, then drilling for the pin boss and exhaust port.



                    Somewhere along the way, I made up a fixture and milled off the bottom of the backblocks (including the inner recess, which I apparently didn't get a photo of)...



                    Then made up another fixture and got the bolt-pin holes drilled.



                    Also along the way, I took the time to redraw the drawings for the front block, and then whipped up a quick test piece to make sure everything fit right.



                    I'll probably be altering the overall profile a bit on the 'production' pieces- again, test part- but yeah, all the dimensions were spot-on.

                    I also got in the Delrin I'll need to make the pump grips, I made up a big handful of my stainless detents to go with these, ran a final finish reamer down the bores and then honed each one.

                    I'd hoped to have at least two ready to ship out today (Monday) but I just had too much else on my plate. I still need to turn some bolt pins (and I'll probably try to get a CNC program together for those, too) and of course the valves, which I definitely want to do on the CNC. Chances are it'll be one of those cases where it'll take a full day to get the program written, then, like, 20 minutes to run the batch.

                    BUT... I've cleared my schedule, told most everyone not to bother me, asked the cat to hold all my calls (Elon is going to have to start solving his own problems one of these days, anyway) and anyone walking in the door is going to be metaphorically shot and proverbially buried in a shallow grave out back.

                    With a little luck, I think I can have at least half of these ready to head out the door by or even before Friday.

                    Stand by!

                    Doc.
                    Doc's Machine & Airsmith Services: Creating the Strange and Wonderful since 1998!
                    The Whiteboard: Daily, occasionally paintball-related webcomic mayhem!
                    Paintball in the Movies!

                    Comment


                    • SETHZILLA!
                      SETHZILLA! commented
                      Editing a comment
                      Hey Doc, can you confirm you got an email or PM from me about my order?

                    • DocsMachine

                      DocsMachine

                      commented
                      Editing a comment
                      PM, email and that carrier pigeon you trained to light a cigarette and blow smoke signals at me. (Unfortunately, on that last one, I never learned to read cursive. )

                      TL;DR version: Yes, it's all easily possible, I just need to work up a quote for ya. I'll try to get some updates out you you and and some of these other fellows in the next day or two. Once I have the hardware like the pins and valves done, I'll be double-checking with everyone to be sure I have each order right.

                      Doc.

                    Great update! Thank you!

                    Comment


                      And Part Three is up!





                      Doc.
                      Doc's Machine & Airsmith Services: Creating the Strange and Wonderful since 1998!
                      The Whiteboard: Daily, occasionally paintball-related webcomic mayhem!
                      Paintball in the Movies!

                      Comment


                        And now, Part Four!



                        And no worries, the actual build is of course way ahead of what the videos show. I'll have a proper photo update later this evening. I just have to make a few more valves, some more bolt pins, and finish the bolts.

                        That doesn't mean all the guns are done, but more than half should be heading out this week. (I know I said that before, but this time I mean it! )

                        Doc.
                        Last edited by DocsMachine; 04-17-2022, 09:54 PM.
                        Doc's Machine & Airsmith Services: Creating the Strange and Wonderful since 1998!
                        The Whiteboard: Daily, occasionally paintball-related webcomic mayhem!
                        Paintball in the Movies!

                        Comment


                          Aaaand we're back on track!

                          Shifting over to the next major piece of this particular puzzle, I cut down the rough-sawed chunks from a couple weeks ago, and machined them to width for the front blocks.



                          After a great deal of jiggery and pokery I had them thoroughly perforated, bored, counter-bored, threaded and just generally kitten-licked. (That's an extra $2 per lick, by the way.)



                          I'd mentioned I wanted to change the profile a bit, so I milled a curve at the top to match- but clear- the profile of the barrels.



                          A quick ride through the belt-sander...



                          And a couple minutes with a corner-rounding bit...



                          And miscellaneous other milling, drilling and finagling, and there's six, ready to go!



                          (Two of the guns are pump-only, and a third is getting a more custom front block, so actually, one's a spare.)

                          I needed rods for the two aforementioned pumps, and rather than fight with manually threading- again- I fell back to the old tried-and-true. A Geometric die head on the turret lathe.



                          That's antique technology- the lathe is older and most of your grandfathers, and the die head probably dates to the fifties, but it could easily make perfect, full-form threads in less than eight seconds. There are few high end CNC lathes that could make those threads, at that size, as fast via single-point.

                          So except for the two midblock rods, those are now done, too.



                          Now, here's something I've been meaning to whip up for years, and now that I have to do a whole fistful of bolts, it was time to make the effort.



                          That's a jig for precisely drilling the pin bore in a 'Cocker bolt. This particular one is for the older 1" back blocks, but it won't take much to make a second body to do the newer 2K-length bolts.

                          That let me drill all the bolts, and then, back in the lathe, I drilled them for the detent ball and end plug for the spring.



                          I also spent some time drawing up the pin dimensions and trying to write a program for the CNC lathe for it (these I hand-turned)...



                          But I haven't had a chance to try it out yet. They're standard pull-pins, so I figured it'd be worth the time to do up a program for them. After that, with minor tweaking, I can do some up in aluminum, delrin, stainless... maybe even titanium, for those of you with extra-deep pockets. (I actually have a little Ti stock on hand, if anyone's interested... )

                          And a quick teaser, for those of you who are (understandably) getting a little antsy.



                          And finally, one of this weekends' projects was to set up a chunk of stainless in the turret lathe, and drill, bore and ream both ends.



                          Over to the other lathe, the OD gets turned down, and then two bits per end parted off.



                          Those get turned, grooved, chamfered and generally fondled (no extra charge)...



                          Until they look a lot like a new-style 11/16" valve body!



                          What's left? Not much! The valves still need to be drilled (I'll make another fixture to help with that) the bolts still need to be drilled for the 'exhaust port', and I need to make some workable pins.

                          That's pretty much it! After that it's just down to the individual fitting- like the midblocks, the pump kits and other unique features.

                          Doc.
                          Doc's Machine & Airsmith Services: Creating the Strange and Wonderful since 1998!
                          The Whiteboard: Daily, occasionally paintball-related webcomic mayhem!
                          Paintball in the Movies!

                          Comment


                            Oh man, awesome update. Getting pretty close.

                            Thanks for posting!
                            My Old Feedback (300+) https://web.archive.org/web/20180112...-feedback.html

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