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

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» Troubleshooting
by stuckinthemud1 Sat Oct 01, 2022 3:08 pm

» Qin/Han lock drawings
by kenh Fri Sep 23, 2022 8:16 pm

» stirrup dimensions?
by stuckinthemud1 Thu Sep 01, 2022 1:49 pm

» Skane/Lillohus lockbow information needed
by stuckinthemud1 Sun Aug 14, 2022 6:23 am

» need help contacting le musee Dauphinois Grenoble
by stuckinthemud1 Sat Aug 13, 2022 3:22 pm

» Low Draw Weight Build
by stuckinthemud1 Fri Aug 12, 2022 3:09 pm

» Trigger testing Rig/Jig?
by ora8i Fri Aug 12, 2022 1:13 pm

» Collotiere a Charavines crossbow
by stuckinthemud1 Sat Jul 23, 2022 5:45 am

» Bad Antler
by stuckinthemud1 Tue Jun 28, 2022 8:09 am

» best type of horn to use..
by stuckinthemud1 Fri Jun 24, 2022 6:13 am

» Han Dynasty Chinese Crossbow
by hullutiedemies Fri Jun 17, 2022 1:00 pm

» Drawing of Crossbow
by stuckinthemud1 Fri Jun 03, 2022 3:01 am

» "How To Make Everything": Early Crossbow
by stuckinthemud1 Thu Jun 02, 2022 3:41 am

» Black inlay
by stuckinthemud1 Fri May 13, 2022 3:18 pm

» Roller nut details
by drawknife Thu Apr 21, 2022 2:44 pm

» 330#/7" wood bow
by Anatine Duo Tue Mar 29, 2022 11:08 am

» starting a 1400's replica
by stuckinthemud1 Thu Feb 24, 2022 1:26 pm

» 18th century German crossbow reproduction
by Fangbows Sun Feb 20, 2022 7:15 am

» replacement for baleen?
by tghsmith Mon Jan 17, 2022 9:30 am

» Josef alm in English
by stuckinthemud1 Fri Jan 14, 2022 3:07 pm

» Medieval crossbow finished
by stuckinthemud1 Wed Jan 12, 2022 3:05 pm

» Trigger mechanisms
by stuckinthemud1 Mon Jan 03, 2022 10:23 am

» Finish wooden stock
by stuckinthemud1 Sat Dec 25, 2021 9:06 am

» finish prod binding
by kenh Tue Nov 30, 2021 5:26 am

» What bolts do you use?
by hullutiedemies Mon Nov 22, 2021 9:43 am


4 posters

    Drawing of Crossbow

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    crusader
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    Post by crusader Thu May 19, 2022 5:27 am

    hey guys,

     I want to make a replica of one of these crossbows.

     Does anyone have a drawing with dimensions?

     Or a CAD drawing?

     That will be great!Drawing of Crossbow  7ace0810
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    tghsmith
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    Post by tghsmith Thu May 19, 2022 5:02 pm

    use all available info and work from there.. if you have decent photos and basic measurements you can start and fill in the missings,, download the crossbow paper (forgot the name) as is has much more measurements on many crossbows..
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    Post by kenh Fri May 20, 2022 5:06 am

    Send polite, grammatically correct messages to the museums, explaining that you are interested in making a replica of a specific weapon, and asking politily if they could provide a few critical measurements.  

    Depending on the museum and the exhibit curator's interest and level of busy-ness you could get a wealth of information -- or a polite refusal.

    I've done exactly this for two musical instruments I was interested in replicating.  In one case I got detailed scientific photographs with measurements to the nearest millimeter.  I the second case I got two critical measurements and one photo from which i could scale everything else.
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    Post by stuckinthemud1 Thu May 26, 2022 11:06 am

    I have written to numerous museums asking for detailed measurements and /or information on collection items and almost all have bent over backwards to help but you need to ask very specific questions. Don’t expect the curator of weapons to know anything about crossbows, they will not, never mind to understand the needs of a replica maker.
    What are you making the nut from? The precise measurements of the replica I built depended entirely on the nut material. The antler I used could only make a nut of a specific size. In turn this determined the depth and width of the nut socket which decided the location of the tickler…course if you use Delrin none of that matters
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    Post by crusader Wed Jun 01, 2022 2:04 pm

    hello, i made the nut from antler.  the diameter is 38mm and the width is 25mm.  I add a photo.  I drew for a few hours and this came out.. it's still a start, at first it was just about the shape of the tiller.  let me know what you thinkDrawing of Crossbow  00c03810
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    Post by stuckinthemud1 Wed Jun 01, 2022 3:59 pm

    If you know what the draw length will be, then you know where the centre of the nut must go. This corresponds to the fattest part of the tiller.the width of the nut gives the width of the bolt table and the width of the start of the spine inlay
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    Post by stuckinthemud1 Wed Jun 01, 2022 4:03 pm

    Also, the length of the bow string matches the length of the tiller. This is where an email to the museum is helpful.
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    Post by crusader Wed Jun 01, 2022 10:54 pm

    Drawing of Crossbow  9cd13210
    Drawing of Crossbow  Df969110hello, i bought a prod from jens sensfelder.  170kg, bra=75 draw length 160mm 160+75=235mm.  the string length is 638mm.  that seems a bit short for the length of the tiller!  I made cross-sections based on that data, and then put the cross-sections in a row, and that's how this shape came out.  (see photo) I received a response from the museum in Glasgow yesterday!  with very good pictures.  with a digital caliper next to it.  the crossbow in the museum has a composition prod, which I can't make (yet).  so my size are slightly different.  maybe a project for the future.
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    Post by stuckinthemud1 Thu Jun 02, 2022 12:59 am

    The Glasgow staff are brilliant, always really helpful. Is the prod from Jens steel? I guess if you are using a prod of a different length then a completely accurate replica doesn’t matter, and you should go with your drawings. Have fun, learn lots, keep asking us questions
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    Post by crusader Thu Jun 02, 2022 3:53 pm

    hello, yes the prod of jens is made of steel.  I'll see if I have another photo.  May I ask which original crossbows you have photos of?  and what do you make your prods from?Drawing of Crossbow  9da38210
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    Post by stuckinthemud1 Fri Jun 03, 2022 3:01 am

    My interest is in wood laths, wood/sinew composite and horn bows.  I have pictures and measurements of the Glasgow yew bow and the Swedish yew/sinew bow.

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