I got you and agree, Eric. And technology can rule
I will probably build a half-scale espringal, and start with that and work out design challenges before building a full sized one. Ideally, I'd want to build a reconstructed machine using only Medieval technology, such as broad axe to square up timbers, etc. That would be a tremendously challenging project for sure. If you are not sure what that machine is, it is a kind of timber frame box on wheels, with torsion bundles strung one on each side, between the side rails. In the center is a kind of mega crossbow groove and large rolling nut lock. Two bow arms are thrust through the torsion bundles, and I am envisioning it as a inswinger. You crank this thing back using a wheel and big ass wooden screw. Place giant arrows in machine and let fly.
Lee, I believe this would kill a deer or turkey as dead as can be
Problem in MA is that you have to have a special permit to hunt with a crossbow, medical reasons I think it is.
Here are a few photos. I've put on three coats of oil thus far, and think I am about done with that, since I want it to have a nice soft finish, not a high-gloss one, though that too would look really good. I made a little bone quarrel rest.
Hopefully, the photo that shows the bolt / quarrel (named because the bodkin heads are shaped in a square) easily shows the idea behind the sloping nose of the tiller.
I made this from cow bone, filed in what I hope is a little pleasant decorative groove and polished it, and began the groove itself. I will finish the bolt goove itself once I have it on the crossbow and can do final touchup at the range. I glued it on then with super glue (my favorite brand is Gorilla super glue, which is a thick formula and gives you a lot of working time), then clamped it to the nose of the tiller.
Maybe some of you are saying "Hey, he said the quarrel rest will slide in a little dovetail groove." Yes I did, but historic crossbows often had fixed bolt rests. And after my little disaster with the other maple tiller and the bloody groove, I decided to go this route.
Call me chicken, go ahead, and who wants omlets?
I also finished up the binding block out of maple, it looks nice, although most of it will be covered by leather and linen thread once the prod and the stirrup are in place.
And that is all. Tomorrow, I get to stay home due to 8 to 12 inches of heavy wet snow, so I will continue with the crossbow then. If all goes well, this thing will be shootable this coming month.
Dane