Instructables

Easy Build Heavy Duty Slingshot

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Picture of Easy Build Heavy Duty Slingshot
This slingshot is heavily based on a slingshot outlined by Joerg Sprave in the video "How to make a power steel slingshot with common tools". I have, however, slightly modified his design to simplify construction and allow for a later upgrade to add a whisker biscuit, which will allow you to shoot arrows with this slingshot (given heavy enough bands - See Joerg's videos to see this type of thing in action).

DISCLAIMER: This slingshot can handle very powerful heavy bands, and therefore this can be a very dangerous slingshot. It can injure and probably kill. DO NOT point this thing at any people or pets. This goes double when the whisker biscuit attachment is added. I take no responsibility for what you do with this thing once you build it.

The above being said....I just might try it out shooting paintballs at some point in the near future...
 
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Step 1: Step 1: Materials

Materials
------------
2 - Simpson Strong Tie T-Plates (With an extra hole drilled in the center)
1 - Hyper-Velocity Slingshot Band Replacement Kit (This was out of convenience...for more power use Theraband Gold or Black)
4 - 3/8" Hex Nuts
4 - 3/8" Flat Washers
1 - 5"? Carriage Bolt (Pick a bold that fits your hand nicely)
2 - 3/8 x 4" Eye Bolts (Sold with nut attached...so really you need 6 nuts total if these are not present)
1 Roll - Black Duck Tape
A few feet of light twine/string (optional)
Krazy Glue (optional)
20 Gauge Hardware Wire

Tools
-------
Most of my tools are in the city at my brother's place since I normally have no use for tools at my apartment. I keep a small amount around just in case, so for this project, I actually did not use all the appropriate tools. I will outline what I used and what should have been used.

9/16" Wrench (Should use 3/8")
Adjustable pliers (Ideally use another 3/8" wrench)
Wire cutters
Needlenose Pliers
1-40 of 41Next »
sniffrumble1 month ago

I see how the author replied, which is reasonable given his hobby of arrowshooting..

Thats wonderful...

good

good

good

jiffymanager3 months ago

great

calmlunch3 months ago

great

sheepbars3 months ago

I see how the author replied, which is reasonable given his hobby of arrowshooting..

I see how the author replied, which is reasonable given his hobby of arrowshooting..

clickyummy4 months ago

super

bearblue5 months ago

great

chimplost6 months ago

I see how the author replied, which is reasonable given his hobby of arrowshooting..

steveazhocar7 months ago
I have built several of these and they are killers. Please be very careful. Great it as you would a loaded handgun. Frankly there is not to much difference. Always wear eye protection. All of that being said it is a lot of fun. Www WwwQ
regaltaxlaw7 months ago
I see how the author replied, which is reasonable given his hobby of arrowshooting..
solarbipolar8 months ago
It's unbelievable that anyone would use wire to hold bands on. First of all, it WILL eventually cut the bands and they will break. Secondly, when they do break, there's a good chance that wire will come back and strike you in the face and/or eyes. Anyone with even the most basic knowledge of slingshots knows that you never ever use wire. Rubber bands work perfectly and work better than anything else. A constrictor knot doesn't even apply to slingshots even though it's the easiest knot in the world to tie with numerous pictures of it available. "Over the top" is the method used to tie bands or tubing. Even commercially made slingshots that use tubing don't use a constrictor knot. They simply cut a small hole in the tubing and run the other end back through that hole for a clean look.
clickworried11 months ago
I have built several of these and they are killers. Please be very careful.
My Diet Area12 months ago
I see how the author replied, which is reasonable given his hobby of arrowshooting..
I have built several of these and they are killers. Please be very careful. Great it as you would a loaded handgun. Frankly there is not to much difference. Always wear eye protection. All of that being said it is a lot of fun. Www WwwQ
hakforfun1 year ago
just so you know it is a really bad idea to use wire becuase when the bands break come loose which they will the wire can snap ack in your face and it will really hurt especially if you put strong bands on it.
Phoghat1 year ago
Ass a better, more comfortable handle use a shift knob from auto store
RCS82 (author) 2 years ago
In response to those asking about how it worked out. I tested it with paintballs this past weekend, while on a camping trip. I found that it shot really straight most of the time. A couple times I somehow managed to hit my hand or the section where the biscuit will go with the paintball though. These issues were likely due to bad form on my part though, as my friends were able to shoot it very well and accurately. The greasyness from the paintballs (they are basically oil and colour, for those who don't know) made the slingshot very greasy, which revealed a flaw in my metal twist for holding the band. The oil allowed one of these to come loose and I got hit in the face by the band. As such, I would highly recommend using the constriction knot method, and if you are going to shoot paintballs, make sure you have good shooting form first.

Have a good one.
Pfarmkid RCS822 years ago
you could use a L shaped bracket and mount the eye bolts at the ends and put the grip at the meet of the L
I made a slingbow a few years ago for my brother in-law with a store bought slingshot and it works good. Mounting the wisker biscuit farther back may or may not throw off your aim. What I would do is use a corner L bracket on the center bolt post to mount the biscuit between the eye bolts. The back part of the T frame I would maybe mount something to extend it to give more support for your wrist, and maybe even a little bit of padding to keep from rubbing/cutting your arm. For the handle I'd suggest you wrap the bolt with paracord. That gives a nice grip and gives you some extra cordage if you ever needed it.

This has given me much to think about for my next one. I can see a trip to the hardware store in my future. I might have to make something off this design and show some other ideas I got floating in my head now. Keep up the good work! I hope to see more and any mods you make.
Grimmy Grim2 years ago
Thank you, I enjoyed this and it's a clever, neat idea.
rimar20002 years ago
Very clever, but why T shaped base?
I see how the author replied, which is reasonable given his hobby of arrowshooting.. Additionally, the long 'T' leg that will rest on your wrist will serve to counter-force the tendency of the bands, stretched, to twist one's wrist up and back ..
All good s'shots have such a 'counter-force' leg ..

Now, i think all here might enjoy this video:

http://maniacworld.com/greatest-sling-shot-man-ever.html
How amazing the aim of that guy! Luckily I never had much, because otherwise they would have killed a lot of birdies. Once I gave them one, and I felt so sorry and ashamed that I never again aimed birds.
RCS82 (author)  rimar20002 years ago
The original design I was working from was straight across, rather than a T. Lately, I have been looking at the idea of sling bows as a compact way of shooting arrows (I'm into archery, and the case for my compound bow is quite large). When I was thinking about how to go about making this slingshot, I figured that I should use a T instead of a straight piece so that I could, later, add a whisker biscuit and heavier bands to turn this into a slingbow. The hole left over would facilitate this. Whereas many sling bows mount the whisker biscuit between the fork, I saw, while watching the videos linked above, a great idea for sling bows. Rather than mounting at the fork, mount the biscuit further back, and this allows for a longer draw, and therefore more power.

So that's kind of the long answer as to why I used T plates. Sorry, I have a tendency to be a bit verbose. haha.
l8nite RCS822 years ago
I think you answered my question in your answer to rim. a whisker biscuit is some kind of arrow guide?
RCS82 (author)  l8nite2 years ago
Yea. See the picture in step 6.
l8nite RCS822 years ago
I of course saw the picture you posted but having no idea what it was, seeing it out of context really didn't help much. When we are familiar with something we assume that others will understand as well. My only archery experience was 35 yrs ago in high school where we used what seemed like old english longbows made from fiberglass, so even seeing a picture of a "whisker biscuit" in use still doesn't tell me what it is or why it's used.

Sling shots I have more experience with and have made several over the years, this one looks amazingly simple and very sturdy. Have you considered carving a handle/grip from wood or plastic and epoxying a short threaded rod to attach it?
RCS82 (author)  l8nite2 years ago
I'm not very good at carving, but that would certainly look nice and if you were looking at building this, and are good at carving, I highly encourage you to go with the wood. Sounds like to would both look and feel great.

My plans for an upgrade to the grip, somewhere down the line, include potentially moulding something out of clay and baking it on, or maybe something like a pipe wrap.

Has anyone tried using sugru for something like this? I've never seen the stuff in person, so I am not sure if it would be good to mould around the handle for this purpose?
RCS82 (author)  RCS822 years ago
Here's an example of one mounted on a bow. (Just grabbed it off Google)

http://www.bowhunting.com/content/modules/rhino.publisher/files/uploads/bowhunting/arrow-rests/whisker-biscuit.jpg

whisker-biscuit.jpg
rimar2000 RCS822 years ago
Thanks, I now understand. It is a good idea.

lordvellos2 years ago
just a tip, you shoudlnt wear duct tape on the grip, it migth cause friction burn, instead you are probably better of with the string alone or you could use those tennis rackets grip tapes.. those are awsome.. i use them on my car's steering wheel.. so comfy!
or you could use some plasti-dip! a nice rubberized coating would be awesome and look profesional
plast dip looks awesome.. have never seen it being sold here in BRAZIL, but would definetly love to get some, it would really help on my dune buggy creation!
RCS82 (author)  desertsniper2 years ago
Great idea!
RCS82 (author)  lordvellos2 years ago
The duct tape was a quick temporary grip, as I was building this for use this weekend. When I get around to upgrading it I'll post the updates.
profpat2 years ago
great idea,

how is t he accuracy?
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