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» swiss national museum crossbow LM-6010
by stuckinthemud1 Fri Nov 08, 2019 4:29 pm

» Nut Diagram
by banuvatt Fri Nov 08, 2019 11:15 am

» what depth to Install a Prod and angle
by globalmark Fri Nov 08, 2019 4:42 am

» Tickler Dimensions?
by Geezer Sat Nov 02, 2019 9:56 pm

» Pins in Trigger Mechanisms
by Gnome Sat Nov 02, 2019 3:49 pm

» How To Make a Roller Nut?
by banuvatt Fri Nov 01, 2019 3:16 pm

» Roller Nut Size
by banuvatt Thu Oct 31, 2019 7:59 pm

» anyone know anything about this one - updated with new image
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» Compound twinbow pistol (posts vs pulleys)
by c sitas Wed Oct 30, 2019 5:00 pm

» Laminating crossbow limbs
by banuvatt Mon Oct 28, 2019 4:33 pm

» Info required for old laminated limbs
by banuvatt Sat Oct 26, 2019 5:48 am

» Goats Foot Lever
by Arcuballista Wed Oct 23, 2019 12:47 am

» Jig for grooving bolts for wood fletching
by banuvatt Mon Oct 21, 2019 9:03 pm

» Cranequin drawings
by Crossbowman Sat Oct 19, 2019 8:46 am

» Drilling out the trigger grove?
by stuckinthemud1 Thu Oct 17, 2019 7:41 am

» finally started my first composite bow
by stuckinthemud1 Tue Oct 08, 2019 7:37 am

» Faux ivory
by kenh Mon Oct 07, 2019 4:36 pm

» Fish skin cover on early hornbow
by stuckinthemud1 Sat Sep 14, 2019 11:14 am

» what is nordic/swedish/northern style
by stuckinthemud1 Thu Sep 12, 2019 1:09 pm

» crossbow 17136, Royal Armoury Collection, Sweden
by stuckinthemud1 Sat Sep 07, 2019 1:26 pm

» notch lock trigger mechanism
by banuvatt Sat Sep 07, 2019 12:55 pm

» how made homemade (reverse) crossbow ?
by ali.j Sat Sep 07, 2019 12:08 am

» Metal clamps for bastard string
by Geezer Thu Aug 29, 2019 11:20 am

» Goats foot leaver design
by Geezer Thu Aug 29, 2019 11:17 am

» mounting sideplates
by Geezer Tue Aug 27, 2019 12:01 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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