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Crossbows - Everything about Building, Modding, and Using your Crossbow Gear

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» Look what the smith sent
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» How do you feel about miniature crossbows?
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» Sinew backed crossbow prod tillering. Update and questions.
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» snakeskin not birch bark on composite bows in medieval period
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» two axle mechanism makers/accurate plans?
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» Anyone make their own bolts?
by MPDVM Tue Jul 07, 2020 11:14 pm

» ash lath and pin-lock crossbow
by stuckinthemud1 Sat Jul 04, 2020 2:42 am

» Stonebow Buildalong
by banuvatt Thu Jun 25, 2020 9:00 pm

» How to Attach a PVC Prod to a Stock?
by banuvatt Tue Jun 02, 2020 8:22 am

» finally started my first composite bow
by stuckinthemud1 Fri May 29, 2020 12:40 am

» AMAZING MINI CROSSBOW code name KillCovid-19
by El Zurdo Thu May 21, 2020 3:14 am

» Draw length ash lath
by banuvatt Thu Apr 23, 2020 9:47 am

» Would like to buy or rent a Han Chinese Trigger
by PierreC Thu Apr 23, 2020 2:37 am

» High Draw Weight PVC Crossbow Build
by banuvatt Fri Apr 17, 2020 3:07 pm

» Universal standard Crossbow nut
by Fangbows Tue Apr 14, 2020 11:57 pm

» Making Chinese 240lb Han Crossbow
by banuvatt Tue Apr 07, 2020 8:40 am

» Goat’s foot lever drawings
by Geezer Mon Mar 23, 2020 9:18 am

» First Build
by banuvatt Thu Mar 05, 2020 7:14 pm

» How to Test the Breaking Strength of a Matieral for a Bow String?
by banuvatt Thu Mar 05, 2020 4:06 am

» Can anyone help me ID this?
by Geezer Sat Jan 25, 2020 4:30 pm


    Pins in Trigger Mechanisms

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    Post by banuvatt on Mon Oct 28, 2019 5:06 pm

    Pins in Trigger Mechanisms Lockfi13
    This is by no means my design, but I really liked it. Ivo posted it on one of Gnome's posts I thought I might use it. One question I had was whether the two pins with the red outline do they have any functional use? I know the bottom one to the top left of the trigger could keep it from moving forward, but how about the one in between the nut and the blue highlighted pin on the middle piece of the trigger mechanism?
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    Post by kenh on Tue Oct 29, 2019 4:58 am

    The one in front of the trigger prevents the trigger from coming forward.  The one above the sear keeps the sear arm in place until the notch in the roller comes back around and catches again.
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    Post by Andy. on Tue Oct 29, 2019 2:33 pm

    Yes, the bottom one prevents trigger moving forward, but top is superfluous, as the nut itself keeps the tickler arm in place (assuming the arrow notch in nut wont foul its rotation when cocking)
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    Post by Wildtech on Tue Oct 29, 2019 2:51 pm

    The Top pin is used to hold tension on the arm and spring until you have installed the nut so the spring doesn't fall out.  I have had to use this on other Crossbow designs.
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    Post by banuvatt on Tue Oct 29, 2019 4:01 pm

    This is kind of unrelated, but it relates to the trigger is the small gap in between the top of the trigger and the lever supposed to be there? Or is it just there to show that the trigger and the lever are separate parts?
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    Post by Andy. on Wed Oct 30, 2019 3:07 pm

    I reckon to show that they're separate parts.

    Some triggers of this type however, have a small raised portion in the trigger at the bearing surface with the top lever to reduce surface contact/friction between both parts.
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    Post by banuvatt on Wed Oct 30, 2019 3:32 pm

    I was thinking if that gap wasn't there wouldn't the trigger mechanism just function as one part rather than two? Now I am thinking it was the latter of what you said.
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    Post by Gnome on Sat Nov 02, 2019 3:49 pm

    Ha! That takes me back. That image was a diagram of my first attempt at a crossbow lock mechanism, which Ivo modified to show me how to make it maybe actually sort of functional. The point was mechanical advantage, the line between the parts was drawn because originally it was just one part with negative advantage. The stop-posts were a suggestion that did not prove necessary.
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