Toolguy Posted April 26, 2017 Share Posted April 26, 2017 (edited) Since I last posted, I have come up with a drop in kit that starts out at 5-1/2 to 6 lbs. and smoothly goes down to 3-1/2 to 4 before the hammer falls. The rebound spring accounts for 2 lbs of the trigger pull. This is somewhat similar in concept to how a compound bow works. These weights are for Federal primers, the action can be tuned upward for other primers. I can't give out too many specifics right now, but have 2 functional prototypes. I'm trying to see if I can make any further improvements before filing for patents. As far as I can determine, no one else has ever done this. You heard it here first! Edit - OK - I'm busted! Can't slide anything past some of youse guys! You heard it here and on the S&W forum first. Edited April 26, 2017 by Toolguy Link to comment Share on other sites More sharing options...
matteekay Posted April 26, 2017 Share Posted April 26, 2017 Noooooo, I heard on on the S&W forum first . Looking forward to seeing it in action and, dare I offer, trying one out! Link to comment Share on other sites More sharing options...
kevinj308 Posted April 27, 2017 Share Posted April 27, 2017 following Link to comment Share on other sites More sharing options...
Drillbit Posted July 2, 2017 Share Posted July 2, 2017 On 4/26/2017 at 2:18 PM, Toolguy said: Since I last posted, I have come up with a drop in kit that starts out at 5-1/2 to 6 lbs. and smoothly goes down to 3-1/2 to 4 before the hammer falls. The rebound spring accounts for 2 lbs of the trigger pull. This is somewhat similar in concept to how a compound bow works. These weights are for Federal primers, the action can be tuned upward for other primers. I can't give out too many specifics right now, but have 2 functional prototypes. I'm trying to see if I can make any further improvements before filing for patents. As far as I can determine, no one else has ever done this. You heard it here first! Edit - OK - I'm busted! Can't slide anything past some of youse guys! You heard it here and on the S&W forum first. Did you get your concept finished Link to comment Share on other sites More sharing options...
Toolguy Posted July 2, 2017 Share Posted July 2, 2017 Yes. One prototype starts at 5 lb. and goes down to 3 lb. It is a smooth pull all the way through, with a snappy trigger return. Every trigger will be slightly different, because every gun is an individual. The smoothness and lightness that may be achieved also depends on several other mechanical variables that a drop in kit or spring kit can't address. This includes things like extractor rod runout, hand to ratchet fitment, hammer to trigger handoff, cylinder timing, smoothness of sliding surfaces, length of firing pin, cylinder endshake, etc. I am working on getting financing now, then will file for a provisional patent, then have to work out manufacturing details. That includes things like: Can I come up with a design I can make myself, will it have to be wire EDM, or maybe MIM? Who can I get to do it, and for what price? Do I have them make part of it and finish it myself? These are all questions that have to be answered before there is a marketable product. It will probably be sometime next year before all of this is ironed out. Thanks for your interest. Link to comment Share on other sites More sharing options...
Drillbit Posted July 2, 2017 Share Posted July 2, 2017 (edited) Well good on you. I hope it works out. Keep us posted. Edited July 2, 2017 by Drillbit Link to comment Share on other sites More sharing options...
MWP Posted July 3, 2017 Share Posted July 3, 2017 Ok, we are talking about trigger pull weights that low? Or is that plus more weight for the rebound? If this is the case, tell me about return. I'm way more interested we in how fast my trigger will return than how light it is. Link to comment Share on other sites More sharing options...
Alaskan454 Posted July 3, 2017 Share Posted July 3, 2017 I've not had much luck with a rebound spring under 2 3/4#, if you are getting a snappy return at 2# I'm quite intrigued. Link to comment Share on other sites More sharing options...
Toolguy Posted July 3, 2017 Share Posted July 3, 2017 With just the trigger and rebound spring and slide in and the hammer and mainspring out, the trigger pulls about 2 pounds. With everything in, the total pull weight starts at 5 pounds and goes down to 3 pounds. The rebound spring is 2 pounds of the total. These numbers are approximate, but close. I don't know that my trigger pull gage is calibrated to a national standard. Link to comment Share on other sites More sharing options...
alecmc Posted July 3, 2017 Share Posted July 3, 2017 What do you mean starts at 5 and goes to 3? Is the weight changing mid pull ? Link to comment Share on other sites More sharing options...
Toolguy Posted July 3, 2017 Share Posted July 3, 2017 Yes, the pull weight goes down, similar to a compound bow draw weight. That is why this is something new and different than anything done before. There's no point in just making another aftermarket hammer or trigger, there are already high quality ones of those available. It's a smooth transition, just as the bow is. If you have never pulled a compound bow, you can go to a sporting goods store and try it. Don't release the string, though. Bows don't like to be dry fired. Link to comment Share on other sites More sharing options...
matteekay Posted July 3, 2017 Share Posted July 3, 2017 I'm still SO intrigued by this. I will wait patiently for news, lol. Link to comment Share on other sites More sharing options...
practical_man Posted July 4, 2017 Share Posted July 4, 2017 On 7/2/2017 at 3:24 PM, Toolguy said: Yes. One prototype starts at 5 lb. and goes down to 3 lb. It is a smooth pull all the way through, with a snappy trigger return. Every trigger will be slightly different, because every gun is an individual. The smoothness and lightness that may be achieved also depends on several other mechanical variables that a drop in kit or spring kit can't address. This includes things like extractor rod runout, hand to ratchet fitment, hammer to trigger handoff, cylinder timing, smoothness of sliding surfaces, length of firing pin, cylinder endshake, etc. I am working on getting financing now, then will file for a provisional patent, then have to work out manufacturing details. That includes things like: Can I come up with a design I can make myself, will it have to be wire EDM, or maybe MIM? Who can I get to do it, and for what price? Do I have them make part of it and finish it myself? These are all questions that have to be answered before there is a marketable product. It will probably be sometime next year before all of this is ironed out. Thanks for your interest. Warren, Put me down on the waiting list. I will need K, L, and N frame variants! Link to comment Share on other sites More sharing options...
Toolguy Posted July 4, 2017 Share Posted July 4, 2017 You're on! The new K and L is the same hammer. The new N and X is the same hammer. The old K,L & N are all different. Triggers are all the same. It would take 5 different hammers to cover all the bases. I will probably start with the new (firing pin in frame) K & L. If there is enough interest I'll add new N frame. See how it goes from there. Link to comment Share on other sites More sharing options...
PatJones Posted July 5, 2017 Share Posted July 5, 2017 You're on! The new K and L is the same hammer. The new N and X is the same hammer. The old K,L & N are all different. Triggers are all the same. It would take 5 different hammers to cover all the bases. I will probably start with the new (firing pin in frame) K & L. If there is enough interest I'll add new N frame. See how it goes from there.The medium K and L frame revos are the ones I don't have a use for. I carry a J and compete with N frames. Link to comment Share on other sites More sharing options...
matteekay Posted July 5, 2017 Share Posted July 5, 2017 12 hours ago, Toolguy said: You're on! The new K and L is the same hammer. The new N and X is the same hammer. The old K,L & N are all different. Triggers are all the same. It would take 5 different hammers to cover all the bases. I will probably start with the new (firing pin in frame) K & L. If there is enough interest I'll add new N frame. See how it goes from there. I have all old K's, but I'd definitely be interested in a new N. I'd think you'd get the most interest from competitors if you went with the new-style N, as well (all of ICORE Limited and Open, most USPSA revo's). Link to comment Share on other sites More sharing options...
jcc7x7 Posted July 5, 2017 Share Posted July 5, 2017 Go new style N frame and I'll be in. Why not , half the fun is trying new stuff, so you can be sure your old stuff is still good. OR maybe not!! LOL Link to comment Share on other sites More sharing options...
mchapman Posted July 6, 2017 Share Posted July 6, 2017 Warren, I would be interested in a few for the "new" N frames as well. Link to comment Share on other sites More sharing options...
VanMan1961 Posted July 6, 2017 Share Posted July 6, 2017 put me down for 4 as well please Link to comment Share on other sites More sharing options...
practical_man Posted July 11, 2017 Share Posted July 11, 2017 Looking good! I have a couple j frames that could use a tune up kit. And maybe an i frame hand ejector. Just for fun! Link to comment Share on other sites More sharing options...
Toolguy Posted July 11, 2017 Share Posted July 11, 2017 That would be fun! Sadly, this design only works for K,L & N frames. The J and I frames are a different animal. Link to comment Share on other sites More sharing options...
gtaylor07 Posted July 12, 2017 Share Posted July 12, 2017 Might get more interest with an N frame. Between the 625 for 6 shots and 627/9 for 8,I can't imagine there being to much more variety for most competitors.This coming from a guy using a GP100.Sent from my Moto G (4) using Tapatalk Link to comment Share on other sites More sharing options...
Toolguy Posted July 12, 2017 Share Posted July 12, 2017 I shoot 686es a lot, but have all the other ones too. It looks like the consensus is leaning (heavily) toward N frame to start with. Link to comment Share on other sites More sharing options...
gtaylor07 Posted July 12, 2017 Share Posted July 12, 2017 That being said my favorites are K and L frames, but the competition market seems like it would be almost entirely N frame.Sent from my Moto G (4) using Tapatalk Link to comment Share on other sites More sharing options...
jhgtyre Posted July 12, 2017 Share Posted July 12, 2017 K and L framed revolvers are still viable in IDPA. A 625 with moon clips has fast reloads but has to make a 155 power factor. A K or L frame wit speed loaders can still have a pretty quick reload, if all goes well, and they only have to make a 105 power factor. Link to comment Share on other sites More sharing options...
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