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/diy/ - Do It Yourself

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508970 No.508970 [Reply] [Original]

Hello, /diy/.
>Can you post the schematics of a crossbow launching system?
Nothing too complicated, but nothing too easy.

>> No.508978

This is really more of a matter for /k/

<---------

>> No.508993

>>508978
I thought so the first.
>After some consideration, I thought that /diy/ is the place since it's schematics.

>> No.508995

>>508970
/k/ will help you out but you might want to wait a couple of hours

>> No.508998

>>508995
I'm more /k/ than /diy/.
>/k/ will direct me to /diy/.

>> No.509034 [DELETED] 

Here, I think this should be fairly self-explanatory. Just follow this more or less and you should be okay.

>> No.509035
File: 13 KB, 981x688, crossbow launcher.png [View same] [iqdb] [saucenao] [google]
509035

Here, this should be pretty self-explanatory. Just follow this more or less and you should be okay.

>> No.509067
File: 311 KB, 1383x1631, unifliz.png [View same] [iqdb] [saucenao] [google]
509067

>>509035
Fucking lol'd
Made me remind pic related.

>> No.509071
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509071

>>508970

>> No.509072
File: 804 KB, 2704x1348, 1358469991145.jpg [View same] [iqdb] [saucenao] [google]
509072

>>509071
I was thinking about making a crossbow, and I still should , but some alternatives to wood I found for the bow were a flattened pvc pipe or a leaf spring.

>> No.509074
File: 1.52 MB, 3600x2680, 1358470121758.jpg [View same] [iqdb] [saucenao] [google]
509074

>>509072
Although this one isn't a crossbow the trigger could be adapted.

>> No.509115

>>509072
>I was thinking about making a crossbow, and I still should , but some alternatives to wood I found for the bow were a flattened pvc pipe or a leaf spring.
or just use a thick straight board that doesn't bend at all, and a bunch of surgical tubing (available at most every big hardware store).

>> No.509154

>>509115
Why do you think the force from a bow comes from the string and not the arms of the bow?

>crossbow launcher
You are now imaginging a gattling gun that fires crossbows that fire bolts.

>> No.509303

>>509154
you've got more than the average amount of water in your head don't you?

>> No.509388
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509388

This is whats called a ballista, its similar in theory to a cross bow, only on a grander scale, I plan on making either a 10 ton leaf spring or coil spring - for a super high tension weaponised bolt launcher, I have seen quoted loads of 500 ~ 1500 lbs, I dunno if thats the spring load or the launch lbs but I want to be able to launch a 1" length of rebar into/through cinder block wall or cement wall the hunting applications would be ridiculous.
Probably make a smaller version for handheld purposes also.
The larger one Would probably be vehicle mounted or trailered, making a great opportunity to incorporate a engine starter motor as a cranking system so I'd not have to hand crank the cocking mechanism, just leaving a autoloading/magazine system to be created.

**NOTE TO MODS: this is not a wapon regardless of the term "weaponised" being used in line, This is purely for DIY scientific porpoises = JUST BECAUSE**

>> No.509396
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509396

>>509388
>"(e.g., forging steel for a blade, or machining for gunsmithing)"
Also Might need to fashion a Steel two piece trigger, release mechanism and its housing as I imagine the amount of force on them would be too great for available/repurposed or store bought parts. I have for this plans for a wood fire energy station/forge for casting.
The over view of witch is a stone and mortar tube with an inner diameter of about 3', TEG's with scaled 1/2" ceramic tiles (TEG's are unable to withstand temps in the 1000's of °'s), an adjustable (1/2" ceramic tiled) steel fire rack - the TEG's would be switchable from 12vDC deep cycle battery storage to an electric bellows system with a dimmer style knob to adjust the O2 nozzle injection.
Other features of the fire energy station would be a gazebo style roof structure with chimney (12vDC powered fan) 100 feet of coiled copper tubing for heat collection in water for bathing and cooking - As this all is assumed to take place in a rural area where I plan to move later on this year.

>> No.509401

>>509303
just why would you even suggest making a slingshot when we're talking about bows?

>> No.509549

Search for "weaponcollector" on youtube, he has a very simple yet efficient mechanism for crossbows.
My father and I made one, and he sold it later on so I don't have any pictures, but he made it from fiberglass by drilling around it, not aluminum.
Hope it helps.