Archive for crossbow

A final note…

Posted in Uncategorized with tags , , , on 14/03/2009 by sangomasmith

Regarding the two recent projects (the recurve and crossbow), a few final points need to be added. Thereafter, the projects are considered officially closed and I will bore noone else about them.
The recurve: The front (nylon layer) turns out to be a bad idea, at least in its current configuration. The easiest course of action, I feel, is simply to use woven glass on both sides of the bow. Also, it seems that a solid handle, suitably attached to the bow, does wonders in terms of power and hand-friendlyness.
The crossbow: The bolt design has been sorted. I recommend a heavy bolt about 50cm long with three big fins firmly attached to the end. A 1cm round-steel bolt with thick plastic flights is what I’ve settled on.

And that’s that.

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Update

Posted in crossbow, DIY, projects with tags , , , on 28/02/2009 by sangomasmith

Okay, tweaks are done and the crossbow has been fired. So, on to the description:

Continue reading

Success!

Posted in crossbow, DIY with tags , , , on 21/02/2009 by sangomasmith

I have finished and fired the big crossbow. This unfortunately revealed some flaws that needed fixing, so I’ll only be able to post the full run-down sometime in the week. I do have some preliminary thoughts, though:

  1. It makes whatever you stick in front of the string disappear. Fast. And then occasionally explode into a shower of splinters. So don’t be a moron and stand in front of it.
  2. Powering a crossbow using a car spring and a home-made winch is a great idea if you want to create something that terrifies you. Kids; if any of you want to try this at home then, for the love of all that is holy, please over-engineer everything. And by that I mean design it in such a fashion that you can beat it against a wall, jump on it and drop it from a building.

Have fun out there

Projects

Posted in crossbow, DIY with tags , , on 19/02/2009 by sangomasmith

The crossbow is coming along, and it is a thing of evil. It shall be terrifyingly over-engineered (I hope) and stupidly overpowered (I pray). Just the final assembly to do, so you will hear more on this subject soon.

Hello empty space…

Posted in DIY, projects with tags , , on 11/02/2009 by sangomasmith

Having apparently lost my one viewer, I think I shall merely press on regardless. Don’t be surprised if this space becomes a sort of mental attic, filled with half-formed burbles and ill-considered ideas. Don’t be surprised if you don’t notice any difference…

Anyway, I’m on another project kick. This time around I’m working on a siege crossbow, another attempt at a hot-air balloon and a two-valve pulsejet. If successful, the plans will be put up for all to see. If unsuccessful, then prepare to hear no more about them as I proceed to pretend that they never existed in the first place.