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Help needed building an onager
#11
Ah yes, I see what you mean. Without the sudden deceleration of the arm from hitting the buffer, when using a cup in this design the projectile will stay in the cup and be launched into the ground in front of the device. The sling motion however will slip the restaining ring from the pin, allowing the projectile to come free at the height of the arce.

I was now thinking of using the Roman style trigger mechanism found on the ballista, with the lever/trigger holding it firmly shut. Those Seacatch releases look awesome, though. I suppose we should best build it well before we actually need it and test a Roman style trigger for safety. Should that not be safe, the Seacatch would indeed be a great alternative. Thanks for pointing it out!
Salvete et Valete



Nil volentibus arduum





Robert P. Wimmers
www.erfgoedenzo.nl/Diensten/Creatie Big Grin
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Messages In This Thread
Help needed building an onager - by Robert - 11-18-2012, 02:42 AM
Help needed building an onager - by Dan Howard - 11-18-2012, 04:02 AM
Help needed building an onager - by Robert - 11-18-2012, 05:35 PM
Help needed building an onager - by Robert - 11-18-2012, 09:07 PM
Help needed building an onager - by Agrimensor - 11-18-2012, 11:24 PM
Help needed building an onager - by Robert - 11-18-2012, 11:34 PM
Help needed building an onager - by Robert - 11-19-2012, 02:10 AM
Help needed building an onager - by Robert - 11-19-2012, 04:34 AM
Help needed building an onager - by Agrimensor - 11-19-2012, 02:44 PM
Help needed building an onager - by Robert - 11-19-2012, 03:17 PM
Help needed building an onager - by Agrimensor - 11-19-2012, 04:17 PM
Help needed building an onager - by Robert - 11-19-2012, 06:13 PM
Help needed building an onager - by Robert - 11-19-2012, 08:28 PM
Help needed building an onager - by D B Campbell - 11-20-2012, 04:33 AM
Help needed building an onager - by Robert - 11-20-2012, 02:38 PM
Help needed building an onager - by D B Campbell - 11-20-2012, 02:45 PM
Help needed building an onager - by Robert - 11-20-2012, 09:05 PM
Help needed building an onager - by Robert - 11-21-2012, 02:07 AM
Help needed building an onager - by D B Campbell - 11-21-2012, 03:36 AM
Help needed building an onager - by Robert - 11-21-2012, 04:13 AM
Help needed building an onager - by Robert - 11-25-2012, 05:45 PM
Help needed building an onager - by Robert - 11-25-2012, 08:45 PM
Help needed building an onager - by Robert - 11-26-2012, 05:50 PM
Help needed building an onager - by Agrimensor - 11-27-2012, 02:52 AM

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