trebuchet? Answered

I'm thinking about building a 1 meter high (working) model of a trebuchet. does anyone have advice on this, like what can go wrong, which materials, lengths, etc. and what could be used as a projectile? note: i know perfectly what a trebuchet is, and how it works. i just don't have experience with model building.

Question by necropolian 10 years ago  |  last reply 9 years ago


Scout trebuchet?

We are going to a scout camp soon where we launch water balloons at each other. Does anybody know how to make a trebuchet or ballista out of poles and rope?

Question by pmgroundhog 8 years ago


knex trebuchet

I have made a knex trebuchet which is about 3 feet in length and 2 ft in height. The frame is strong. It can fire quite far but I'll get measurements tomorrow It can fire anything that fill fit unfortunately it doesn't use weights as a power source due to having nothing that could be heavy enough to fire it so, I put loads of rubber bands on it. its fire using string which is attached to the projectile and the other end of the string is connected to the arm which when is up right the string detaches and the projectile is released. At the moment is can fire about 20ft and gets loads of air time. about posting this: I will test it tomorrow and iron out any problems and make it perform better. after all of that I will post it. my thoughts: I think this is the best trebuchet to be posted :)

Topic by smidge147 10 years ago  |  last reply 6 years ago


Remember Trebuchet's map?

Have you put yourself on it yet?http://www.primitiveengineering.com/instructables/At least one member has mentioned that they can't find other like-minded individuals to talk to face-to-face. The more users add themselves to the map, the more likely you are to make new friends in the real world.

Topic by Kiteman 11 years ago  |  last reply 10 years ago


can you make a mini cardboard trebuchet? Answered

The caredboard trebuchet, i was wondering if you can make a desk top one like 10 cm tall

Question by the poodleo 9 years ago  |  last reply 9 years ago


how do you build a golf ball trebuchet?

For school i have to make a trebuchet that can shoot a golf bal as far as it possibly can but i don't know how to make it and i can not find any plans that are descriptive enough.

Question by 9 years ago  |  last reply 9 years ago


When will someone make an instructable on how to make a good floating arm trebuchet?

Floating arm trebuchet's are such a happy alternative to the run-of-the-mill trebuchet. Construction is not much more complicated, and results are so much better! I just can't find any plans anywhere on the internet or at book stores. Who will be the first to make a great instructable on it? I was thinking 4' or 5' would be a good size to start off with.

Question by fritz.fulton 8 years ago  |  last reply 8 years ago


How does the sling work on a trebuchet? Answered

Hi Instructables community, I don't quite understand how the sling on a trebuchet releases.  I understand how a handheld sling works but what happens with a trebuchet sling. Thanks guys!

Question by SirNoodlehe 6 years ago  |  last reply 3 years ago


Trebuchet does not release load

Have built a pallet/ man sized trebuchet in a 4th grade class project. Looks great, swings well, but the tennis ball load is either released before the sling swings up, or not at all (slams against the arm). Have used 2 ropes with a shallow bag. Any suggestions? (Kids were disappointed on Friday)

Question by BobS 8 years ago  |  last reply 8 years ago


Why won't my trebuchet work? Answered

Over the weekend, I built a trebuchet. It is two feet tall from base to arm, and it uses a 2.5 pound weight as a counterweight. It will only launch a golfball around 8 feet! It has barely any arc at all. Can somebody help?

Question by schoonovermr 9 years ago  |  last reply 9 years ago


Brit Plans to Fling Poo at Thieves with Trebuchet

A 70-year-old Englishman has a 30-foot trebuchet and has plans to use it to toss big piles of chicken poo at thieves. I'm not sure just how accurate he can be with it, but I sure would love to see such a crazy device in action. And if that doesn't work, he has a 20-foot cannon that he wants to use to shoot rubber-tipped ammo. "I'm not out to kill anyone or even hurt them," he says. "I just want to keep yobs off my land." link

Topic by fungus amungus 11 years ago  |  last reply 8 years ago


How to calculate projectile distance of a trebuchet? Answered

Hi! After looking on the net for calculations to predict the distance of a projectile launched by a trebuchet, I've not found anything useful. There are many variables and each one can be changed to alter the projectile distance and velocity. I am looking for a simple way to calculate this without calculus.Thanks again.?

Question by 3.1415 10 years ago  |  last reply 7 years ago


My gift exchange has arrived! Double Trebuchet Greatness!

For the Instructables gift exchange I was paired up with Biggsy. They made me this awesome Trebuchet set! I have two Trebuchet's a red one, and a blue one, with matching little defence walls.  Biggsy said that they work well with marble, but I only had airsoft bb's to hand, which flew very nicely. I really enjoyed doing the gift exchange, and look forward to any future ones! When the trebuchet's are not being played with, they are going to live on my shelf of other misc items, to be looked at and fiddled with. Thanks Biggsy! - gmjhowe

Topic by gmjhowe 8 years ago  |  last reply 8 years ago


best? Answered

What is the best instructable. I want to know what u guys think because i'm trying to find something really cool and fun to make and show.

Question by EncasedDeath 9 years ago  |  last reply 9 years ago


How do you make a proper Trebuchet sling?

My group is doing a Trebuchet for Engineering class and we've built it and it's ready to go. But it's missing the sling. I've tried making a sling but I feel I've been doing it completely wrong. Because the projectile (wooden ball) would either hit flat on the ground or never release. I'm also confused as to how the sling works, I realize one end is tied to the arm and another is free floating and unhooks and releases the projectile, but how exactly should you do this? Is there any good tutorials that don't leave out details, or at least explain it a little better? Any help is greatly appreciated and will prevent us from failing.

Topic by caseyweed 10 years ago  |  last reply 9 years ago


National Science Bowl teams used my Trebuchet for a competition

I received an awesome comment. A high school teacher used the plans for my Quick'n'Dirty Trebuchet as a lunchtime competition project for teams competing in the National Science Bowl. The teacher made up kits of the parts: masking tape, dowels (I used chopsticks), paperclips, toothpicks, string, a binder clip and a weight. The teams then had to assemble it and held a throwing competition. The winner averaged over 20'.This is why I make Instructables, and most specifically why I made this one. I wanted it to be easy and cheap, no special hard to find parts, work well, while still being a real Trebuchet. I loved the comment.Here it is:My school hosts a regional competition for the National Science Bowl for high school students every year with the winner going on to the national competition in Washington, DC. This year I was in charge of finding some sort of competitive project for the teams to build and compete with during the lunch break. I chose your quick and dirty trebuchet and made a kit for each team. I made a few changes to your plans. I used 12" long 1/4" cut dowels instead of chopsticks since I didn't have a cheap source of chopsticks. I did not give them rubber bands and instead they were to tape the paperclips on for the axle. They were given a 200 g weight with a loop of string taped to it for the weight. The projectile was a mini binder clip with a loop of string tied to it. The complete kit contained the 9 dowels, a roll of masking tape, 4 paper clips, the 200g weight with loop of string attached, mini binder clip with loop of string attached, your printed instructions as a guide and a sheet explaining the rules of the competition.It worked out quite well. The teams were given a copy of your plans as a guide and 20 minutes to build their device. The competition was they were to launch the projectile three times and it had to land inside a track 4 foot wide each time. The distances of the two best of the three throws were added together for their score with a foul (outside the lines) counting as zero distance. We had 12 teams participate and the winner had a score of about 44.5 feet. They all had fun and I think learned something too.

Topic by SFHandyman 10 years ago


I am wondering what a good project for me would be? Answered

I hate sports, I like minecraft, I'm big on engineering, I've already built a trebuchet, coilgun, and dual string stunt kite. What else is there to do?

Question by Rebreg 6 years ago  |  last reply 6 years ago


Weapon Masters - Discovery Channel uses Instructables

My Viking Catapult and Scissorman's Office Trebuchet have both been used as part of the Discovery Military Channel's website to accompany their Weapon Masters series.It's been edited, but it's still cool to see one of my projects deliberately selected to be featured on another site, rather than the usual blog-link.Direct link to page.

Topic by Kiteman 10 years ago  |  last reply 10 years ago


(newsletter) Concrete LEGO, Bass Cannon, Cardboard Trebuchet...

Sign-up for this newsletter: Welcome back! Check out these two fantastic contests!Build something awesome using cardboard, and enter the Gorilla Glue Cardboard Contest to win a huge package of Gorilla Glue supplies and gear!Cook up something tasty for the Low & Slow BBQ Contest and win a Weber Smokey Mountain Cooker, and autographed copies of the new Low & Slow BBQ book! Help choose the winners by voting for your favorites in the Art of Sound Contest - Vote for who wins the custom hi-fi tower set with subwoofer, monster speakers, and more! Coming soon... Share your favorite kids craft projects in the SINGER Kids Crafts Contest, starting next week! 800watt, 12' long Bass Cannon Make a Stuffed BBQ Fattie Concrete LEGO Cake in a Jar Submit a cardboard creation and win a prize pack from Gorilla Glue! Cook up something tasty! Make a Cardboard Trebuchet DIY Workbench Playable NES Zipper Lamp The Homewrecker Laughing Coke Can Prank Back Cooler Growing Avocado Plants From Seed Woodgas Can Stove Help choose who wins the hi-fi custom speakers! Coming soon! Lamp Made from Translucent 45s Wicking Beds Millefiori USB Flash Drive Jewel College Bed Loft (Twin XL) Sign-up for this newsletter:

Topic by fungus amungus 9 years ago  |  last reply 9 years ago


Launch It! Inspiration

OK, do NOT do what these people do, but if you're looking for something to get your creativity going, watch this. And a trebuchet as well.

Topic by fungus amungus 11 years ago  |  last reply 11 years ago


Does anyone know how to make a matrix code on paper? Answered

I want to draw my own matrix codes and be able to solve them

Question by Rebreg 6 years ago  |  last reply 6 years ago


friend's project

A friend of mine is in the metals class at my school and he asked me for some ideas (since they can make whatever the want on this last project) on what his final project should be. He's thinking something like a trebuchet or something else that launches projectiles and causes pain (or just fun). It would be awesome if some of you had any ideas or instructables for his project. If you do, please tell me!

Topic by wingman246 12 years ago  |  last reply 12 years ago


I'm new to Instructables. What are some good tools to have?

I got hooked to Istructables with things like the desktop trebuchet, the marshmallow shooter, the $10 dollar Mont Blanc pen, and the PVC bike repair stand. There is so much more I want to do on Instructables, but I don't have the tool capabilities to do so. Where is a good place to start in terms of what kind of tools I should get?

Topic by GoCubs252 10 years ago  |  last reply 9 years ago


Crummy, Rainy Day

It's been windy and pouring rain all day, and there's nothing to do. I'm in DIY mode, and aready made Real Simple.com's doughnuts, Trebuchet's monkey bread, and an airsoft backup shotgun: https://www.instructables.com/id/Airsoft-Claymore/ Got anything I can do, or something to amuse me? BTW it snowed yesterday, it only snows up to three days a year before rain washes it away. My dog loves snow.

Topic by Spl1nt3rC3ll 11 years ago  |  last reply 11 years ago


Gift exchange: Question

Just a quick question... I'm thinking of jumping in the Gift exhange group as I think its a brilliant idea... But, would it be reasonable for me to say offer one or two peices of my pre-made instructables as a gift? I was thinking of offering someone Norbert and a mini trebuchet that I already have made... Or do i deffinatly need to make something brand new? Its no problem making something new.... just well... I think Norbert would make a great gift... but I don't EXACTLY want to make another one what do you think? Jay

Topic by Biggsy 8 years ago  |  last reply 8 years ago


simple machine build ideas (from junk)?

Hi guys, could use some creative ideas... i run a pub & we also have a successful themed pub quiz once a week.  it's always a little bit different... in the past we've had teams make an egg throwing machine from bits & pieces such as garden cane, plastic milk cartons etc.,(a surprisingly forceful trebuchet was the eventual winner) & we would like to do something similar. a machine to transport something?  i'm having a massive creative block so some input would be great. ta in advance.

Question by barbint 7 years ago  |  last reply 7 years ago


Wow. It's been while..

Greetings guys! Wow. Instructables has changed oh so very very very very much. I joined back on 06? Been five years. Instructables has changed. Some for the better and some not so good changes. Questions I have since I've been inactive for a long period of time. 1. What happened to the "featured" banner on the isntructables featured on the homepage? 2. What happened to trebuchet? 3. Kiteman will never leave this site will he? xD 4. What's new? 5. Has instructables been more widely known now? Great to be back. Hope I will find more time to be on here.

Topic by dkfa 8 years ago  |  last reply 8 years ago


Catch me ups

Aight guys, so It's been quite a long time, after all the changes to the system and that, I got fed up with having to use a dedicated browser to use instructables, or to post them, let alone simple F-in posts, as it was rather time consuming, and even at that, still flaky. So I thought I'd see if it was working on safari again.. So what exactly have I missed? It's got to have been MONTHS. Where's Lemonie, Westfw, trebuchet, vegas, what have you guys been doing all this time?? I'm surprised I actually managed to name you guys off the top of my head.

Topic by Punkguyta 10 years ago  |  last reply 10 years ago


Instructables penetrates the general conciousness via ebay

OK, I was bored. Remembering Trebuchet's artwork, I wondered if anybody was selling the products of their ibling. I also wondered if anybody was having another go at selling plans from this site (somebody tried to claim the plans for this project as their own).Guess what?There's one seller marketing via Instructables (they've posted the instructions for their product as a project here), but several others are selling things and mentioning Instructables in an offhand way ("I bought .... to do a project I found at ... but I never got round to it").I wonder, dear reader, did you find this site via ebay?Have you sold your own projects after publishing them?Or have you even bought an ible?

Topic by Kiteman 10 years ago  |  last reply 10 years ago


What is "instruction 0x593fb06f referenced memory at 0x593fb06f. I/O error status of 0xc000009c" supposed to mean?

My WinXP laptop is giving me hell and I dont know why. I attempt to do almost anything system-wise, explorer crashes and gives me a message that looks a bit like this"instruction 0x593fb06f refrenced memory at 0x593fb06f. I/O error status of 0xc000009c" Some text cant be recognized like the majority of the text on the arduino.cc website, I cant go into the My Computer or C:/ folders without it crashing, and there are probably other things that I havent found yet. I need some help before I do something incredibly stupid to this computer, like playing flaming baseball with it or using it as trebuchet ammunition.

Question by The Ideanator 9 years ago  |  last reply 9 years ago


Top 8 instructables to avoid working on a Monday

"Americans hate their jobs more than ever before in the past 20 years, with fewer than half saying they are satisfied.The trend is strongest among workers under the age of 25, less than 39 percent of whom are satisfied with their jobs.Workers age 45 to 54 have the second lowest level of satisfaction (less than 45 percent), according to a survey conducted by The Conference Board, a market information company that also puts out the Consumer Confidence Index and the Leading Economic Indicators."From MSNBC.comIf you happen to be one of the majority of people who are dissatisfied with their jobs in America, or anywhere for that matter, and are feeling the burn particularly hard this Monday maybe these 8 instructables could make things a little more fun at work.From building a mini office trebuchet that hurls paper clips at your boss to fleeing the country in a free yacht, instructables has some solid ways to avoid working on a Monday.If your just looking for a distraction and still want to come back to work on Tuesday check out these three instructables that will surely make your work environment a little nicer.1. Hanging Laptop Digital Painting2. Pimp Your Office Chair 3. Stand-Up DeskOf course, if you're looking to do something that will have a bit more of a lasting/destructive effect on your work place try attacking your officemates, or better yet, your boss with these things...4. The Office Supplies Trebuchet5. Paper Claws6. The Archery of the OfficeAnd finally, if you're looking to really get out of work forever its best to have a free means of transportation that doubles as a place to live and and exit plan from capitalism.7. How to Get a Free Yacht 8. How to Escape From America

Topic by noahw 11 years ago  |  last reply 11 years ago


My 2cts on the new Featured Instructable system

Hello everyone, it was suggested that I give my thoughts on the current (new) system when an Instructable is Featured. Recently one of my Instructables was Featured (have a look at my Trebuchet I'ble). I received the standard 'We think your awesome' email... and then... nothing I waited for a snazzy little banner proclaiming to the world that I was featured... I also waited to see my Ible on the front page... After 24 hours I got worried and posted a bug report, where the new feature was explained to me Where I have the problem is this new three teired system hasn't REALLY been explained in an email or a site update memo.. Perhaps It would be useful to have an opt-in site update email which explains the current features/updates of the website? Another problem is the email I received says this: Hi! Your Instructable "Scout Project: How to build a Trebuchet" was just featured by one of our editors! Being featured means we think you are awesome. Keep up the great work! Look for your featured Instructable, within the next 30 minutes, here: https://www.instructables.com/play/?show= FEATURED https://www.instructables.com/play/siege-engines/?show=FEATURED Eric The old style email says: Hi! Your Instructable "How to make: Norbert the Cuddly Squid" was just featured by one of our editors! Look for it on the Instructables homepage within the next 30 minutes. Being featured means we think you are awesome. Keep up the great work! https://www.instructables.com/ -Eric There isn't very much difference, and when you are unaware of the change, it is a little confusing... maybe the standardised email needs a little tweaking for the new Featured Instructable system? Thanks alot Jay

Topic by Biggsy 9 years ago  |  last reply 8 years ago


Random Knex Challenge 6- Medieval Weaponry!

Random Knex Challenge 6- Medieval Weaponry! WIN A PATCH!!!!!!!!!!!!!!!!! This is now closed. Oh yes! That is right! The Medieval period, a time of blood, gore, and best of all, WEAPONS! Yes, this round is simple, you have to make a type of medieval weapon, there are many many choices of things to choose from in this challenge, including: Trebuchets, catapults, throwing axes, lances, club, flail, war hammer, long sword, ect... Here are some rules for this challenge: Must be based on a real medieval weapon Must have been made AFTER the contest started Must be 100% Knex (String and tape allowed) Must be entered by 7th Febuary 2010 List of entrants for this round: Killer~safecracker Knexfreak95 Good luck! And happy building!

Topic by Hiyadudez 9 years ago  |  last reply 9 years ago


Featured I'ble not showing on front page or withthe snazzy banner?

Hullo all... I received the email telling me that I am awesome... and indeed that my I'ble on Trebuchets is also of the same calibre... BUT... It doesnt appear to be showing up on the home page... nor does it have the little white diagonal banner that says 'Featured'... that my other featured I'bles have... I assumed that it was just due to updates and filters and such... but the time stamp on the email shows that I was featured at: 17 April 2010 00:17:43GMT   I show up in this link: https://www.instructables.com/play/?show=FEATURED Decided to take this to the forum as I was unsure who to email... or If its part of the new site re-vamp? Let me know Jay did no one ever learn that its not wise to mess with the person holding the siege weapon??? ;)

Topic by Biggsy 9 years ago  |  last reply 9 years ago


Office Warfare Book on Sale Now

Spending all day in a cubicle is a lot like a war of attrition between you and the clock, with skirmishes against neighbouring tribes to establish dominance. While we haven't yet figured out a way to speed up time to get your out of your white-collar jail, we do have a handy book that could make your hours under fluorescent light s little more enjoyable. Presenting, Office Weapons: Projects to Fortify Your Cubicle A collection of over 40 projects made by YOU, members of Instructables, that you can create in your cubicle from easily sourced office supplies. There's grappling hooks, trebuchets, darts and more - all made out of office supplies! We've even included some fun non-warfare projects at the end to keep you entertained in times of peace. Check out the projects that are in the book, then head over to ThinkGeek or Amazon to grab a copy for yourself. If all else fails, you can always use the book as a shield from your cubicle neighbour (who has already purchased this book and is arming himself as you read this).

Topic by mikeasaurus 5 years ago


Back to School 2: More instructables to help you in class

School has started for most of you and to help you out joshf posted The Top 10 List for going Back to School. But school is complicated and we feel that students can use all the help they can get. So we're helping you out with 10 (+1) more Instructables. Good luck in school this year. Learning is awesome. Minimalistic Desk by arte.sano Planning on renting a room, decorating with a single mattress, and studying on the floor? Time to make your own desk and act like a grown-up. Your back will thank you. Moleskine Hipster PDA case by atman Be ready to take notes at any time and keep your life together, analog-style. Who says you only learn in classes? The world is your classroom, buddy. Make a $5.00 "Space Pen" for your wallet by doctor_wu Even if you forget your Moleskine Hipster PDA Case, with this tiny pen you'll always be sure that you can write those thoughts down if you can just find a scrap of paper. Laptop sleeve from a zippered three ring binder by cmrc Laptop bags can be crazy expensive for what is just some fabric and a zipper. Strip out a zippered binder instead and you're all set! Vinyl Pencil Case by splityarn Store your fancy mechanical pencils and fine point pens in style with this custom case for your binder. The one you didn't rip up for a laptop sleeve, that is. Collegiate meals by trebuchet03 You're on your own and your idea of cooking is boiling water for ramen? That's sad. This collection of easy recipes will keep you eating well without stress. That's good. Office supplies trebuchet by Scissorman We recommend that you work on your verbal sparring with classmates before you resort to violence, but if you do need to get some agression out this tiny medieval weapon will help you launch your assault. The Paper Catapult by Kiteman So you don't have any office supplies for a trebuchet? Then print up this file and you'll have a scaled-down war going on in no time. Lego USB Stick by ianhampton If you're worried about accidentally using your Pinky USB Drive and destroying your homework you can make a flash drive with a sturdier bit of LEGO plastic. Just don't lose it by burying it inside your model of Helm's Deep. How to "Steal" Your Textbook by TimAnderson OK, we don't think you should really steal any textbooks, but you can turn them into PDFs by destroying them. You lose the resale value, but you can now keep all your books on your laptop and only carry one item to classes! Wikipedia in your pocket by PKM Afraid of getting into an argument in the cafeteria without the Internet to back you up? Take it with you by cramming Wikipedia in your pocket!

Topic by fungus amungus 10 years ago  |  last reply 8 years ago


My Entry for the Gift Exchange

I have deiced to send Norbert and (one mystery item) to a good home... My skills include: Sewing, creative knot work... cakes and baking What I'd like to make for someone: (Pre-made cuddly squid) miniature Trebuchet... and something else when I put my mind to it (if this is not ok... I will re-edit this post) I'd be willing to make this size gift package for someone (choose all that apply): (S,M,L)... Small/Medium I'd be willing to receive a smaller or larger size gift package from someone than the one I make for someone else: Yes What I like: Anything thats usefull in the out doors... gizmo's and gadgets & things erlating to the Scouts. Knives and axes... What I don't like: nothing to high tech... Certainly not a Knex fan (or how ever you spell it... that plastic stuff that clips together) I absolutely can't have: (due to allergies, pets, etc) Type of thing I'd love to receive:I would LOVE a working fire piston but i think the thrill of just getting something suprising would be ace! Just so long as the item is usefull... :D Would you be willing to ship to an address outside your own country? yeah sure Confirm that are at least 18 years old or, if not, that you have the approval of a parent or guardian: I am well over the age of 18 Any problems let me know... pics added of what i shall be sending (pluss a mystery gift of whomevers choosing)

Topic by Biggsy 8 years ago


What should I do with all this?

Hey everybody, I've been MIA in Ible-land for a long time now. In the meantime, some new stuff has been brewing here. Some totally awsome ibles coming, I promise! Recently I aquired at an auction: -a pallet of computers -printers -a 24" color plotter -a photocopier -a microscope on the end of a long arm with a fiberoptic light What should I do with the pallet of PCs, the photocopier, and the microscope? Obviously the photocopier is the big deal here. Copy machines have a loda of stepper motors (most w/ very high torque), lots of electronics, LEDs, high voltage power supplies, a flourescent lamp, belts, pulleys, encoders, shafts, wheels, feeders, speakers, com. chips, MCUs, RAM (good for advanced robots), lots-o-metal/plastic, and some very awsome/complex mechanisms. Pretty mush everything is in a photocopier. So help me out! maybe I'll use your idea to better mankind and destroy the oil industry! Okay maybe not, but it's a nice thought to imagine every car running on fuel cells. Give me some ideas because too many are running through my head. Things like: -Tesla coils -Rendering farms -laser scanners -CNC machines -static lifters -lamps (yeah, not the best idea) -railguns -large, 4x4 robots -trebuchets -sorting machines -combat robots -lasers -net-enabled robots -high-speed home PCs -extra misc. Also, the toner feeder leaks, that is why the copy machine doesn't work. There is a full toner cartridge though, what do I do with that? Well, give me some Ideas and I greatly appreciate it!

Topic by gimmelotsarobots 9 years ago  |  last reply 9 years ago


Knex gun projectile propulsion ideas

So I'm looking for stuff beyond what has already been done. Pin guns are everywhere, slingshots are yet again pretty common, hammer guns have been made but don't have the same performance as the others, and then you have "rail"guns which have a shuttle that works similarly to a pin, but can have the track extended. We really need some new ideas here. I specifically do for my current gun as I have a wicked cool loading mech, but absolutely no propulsion mech and limited space to fit it in. Anyone have ideas that are completely different? If you suggest the following, because they have been done before, please try and make a mech that makes it more innovative still: deconstruction magazine multi band ratchet (multi shot slingshot: if anyone comes up with a magazine to replace of bands, kudos! Plz post dat ***!) a hammer gun that gets some f-ing range for once (we're talking 35-40+ ft without needing glued parts) Some ideas I've come up with that I haven't seen (and haven't made either...) are: enclosed trebuchet (probably spelt wrong, but google wanted me to say "Bucharest" so I'm just going to leave it as is) (an arm picks up a round at the back of it's arc, then comes forward like a hammer but doesn't rely on impact for round firing but acceleration instead) newton's compound cradle: a pin comes forward and hits a shuttle out of a catch, with that shuttle being pulled forward by bands so you have the impact acceleration, then even more from the other bands switchback: a pin comes towards the user, hits the bottom of a lever (hammer) which comes forward and hits the round If you come up with others, or mechs for these, please comment with your idea! Thanks, and let the innovation continue :)

Topic by Dreamwave 3 years ago  |  last reply 3 years ago


Coming Soon: EVERY Instructable, one massive book

[edit: this isn't real, but it would be awesome] In the interest of helping out our amazing community of authors, we’ve decided to make all of Instructables available for download in a single PDF document. That way when the EMPs hit or the grid goes down, you’ll have all the chicken rearing, solar paneling, rain barreling, wind turbining, and urban farming resources you’ll need. And because we’re including everything, you’ll also be able to stave off the post-apocalypse blues with bacon roses and unicorn poop. We’re putting all 127,000 Instructables projects into a single omnibus edition that will be sold at cost (TBD) to Instructables authors and for about $1000 for non-members. We’ll also make the PDF available to Pro members. If you’re so inclined, you can print and bind your own version. Get familiar with KaptinScarlet’s “How to Bind Your Own Hardcover Book” Instructable. We found a spectacular publisher who’s willing to bind the pages with paracord and baling wire. This edition should have just about 30 meters of paracord in the binding, along with just enough baling wire to keep the whole thing together if you choose to take out the paracord. The publisher also agreed to include a metal shank in the spine that can be fashioned into a makeshift knife, shovel, or bottle opener. The book is big enough to make a pretty nice counterweight for a small trebuchet, too. There were a few challenges for this publication. First of all, there’s an awful lot of content. To keep the print length down, we used small images wherever possible. We also cut the comment sections and individual project tables of contents. We did, however, keep the advertisements in the margins just in case AdSense will pay out during the End of Days. This publisher did balk at including packages of strike-anywhere matches in the book jacket. Sorry everybody. Matches were deemed “too unsafe” for their production and distribution teams. As though a conflagration of Amazon packages in the back of a UPS truck is less safe than losing a few digits to a frozen post-apocalyptic hellscape. The biggest challenge of all, though, was the sheer size of the book itself. The rough draft weighed in at about 500 kilograms. In a lucky break, using that ultra-thin biblical/lexicographer paper stock allowed us to cut the weight to just 220kg AND to make the pages double as bathroom tissue in a Charmin-less world. The tome will require a licensed forklift operator to receive it (or you can choose to pay the $150 white glove installation surcharge.) And, as usual, we cannot ship to a PO box.

Topic by wilgubeast 5 years ago  |  last reply 4 years ago