Royal Dutch Army Museum.

mac wrote:Ferdi,

Have you got any good views of what is left of the bindings of inv. no. 11464 ? That's Sensfelder's cat. no. 19.

Sensfelder's pics are great, but more would be better.

Thanks,
Mac

ferdinand wrote:
Did u get any new insight on those bindings?

mac wrote:Here is Sansfelder's diagram for a generic diagram for a 4 axle lock and set trigger.

I feel that this is about all that I can post from a book that is currently in print. It's an essential book, and everyone should buy a copy while it is still available.

Mac

ferdinand wrote:



thanks for that! Incredible how complex it actually is! hard to imagine how it works without any extra springs in the mechanism. Dunno if i will make it that diffycult but then again, maybe i will!

mac wrote:Ferdi,

Check your mail box.

Mac

Ivo wrote:Mac, Ferdi,

I was exploring that trigger recently and came face to face with a very strange bit.

The lever (part #9) and lever (part #11) behave very strangely with #11 moving in the direction opposite of the expected. It basically jams. I tried moving the axels of the two parts to try and narrow down the issue, but to not much luck. Have you experienced anything like this?

Ivo

Ivo wrote:My model is an exact copy of the one in the illustration above. I made a cad assembly and ran the simulation on the computer. Was planing on making a study model once I have it figured out on the comp, but something is wrong there, so here I am.

My guess is same as yours. I think it's either the receiving angle that was undershot or the tip of the lever #9 is and doesn't reach far enough past the center of #11's axel. Perhaps that's it...

By the way, you had a question about resetting this trig and Mac did an excellent job at explaining it...also there is a cool video of the internals and the whole operation. Man, that guy...

https://thearbalistguild.forumotion.com/t264-crossbow-video#3866

Thanks Ivo! Incredible how complex it is! I love it!
Great movie.



Ivo

PS: Big thanks for posting all the pictures, and Mac for bringing up that metal cased bow. Really cool stuff!

Ivo wrote:


So when I went into the properties, I realized that I was exporting model that had millimeters for units of measure, and importing it into another app where the preset is Meters. Thus, what was millimeters turned into meters and lever #9 measured around 560m in length (with steel as a material it weighed in around 100,000kg) Lever #11 was just moving in the opposite direction due the shear weight of it's longer arm.