Day five of the ballista refurbish.

Today was slide and trigger day. The pawl pin is doubling as the anchor for the winch line.

You can see how the set up works in this pictute.

Once I have the slide installed and the trigger base mounted I moved on the runners for the arrows. You can se the profile of the runner here.

In this side view you can see the slide in place and how the ratchet pawls work. This lateral ratchet style was first used in 399BC for the grastraphetes and was common on Greek machines. The Romans prefered a round ratchet mounted on the winch drum.

Tomorrow the trigger will be mounted and all the new parts oiled and I’ll make the new string. At some later date I’ll make an alternate slide for throwing shot.

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