This is my knex mortar what do you think post or not? P.S. this uses a trigger similar to Iacs trigger. Gets about 100 feet I tore it apart because no one likes it
Posted by Knex_Gun_Builder 10 years ago | last reply 10 years ago
Heres a spot we can put up ideas about mortars. look for "tennis ball mortar" for the base idea and then you can modify off of it. i been thinkin mabey mortar that can shoot like a shotgun, (air soft pellets or bbs) or a huge cannon that can shoot footballs lol. ill think on it and post somthing. good luck with ur ideas and have some fun. ...mabey pvc pipe for the barrel or somthing...
Posted by XI3 11 years ago | last reply 11 years ago
My homemade marble cannon the MC-200 has, and can be repurposed to fire hundreds of airsoft bb's at once. It is too dangerous (not to mention hefty... It's 6 feet long!) to fire directly at people, so it makes a good mortar. I only ended up paying $20 for it is the best part too.
Posted by Dr meat201 11 years ago | last reply 10 years ago
I need to grind some kno3 but i dont have a mortar and pestle or a coffee grinder. is there any way to improvise using household items? by the way, the kno3 is pretty strong stuff, so it will take some force to grind it. any ideas?
Posted by DELETED_DELETED_kruser495 10 years ago | last reply 10 years ago
Welcome to the group. have some fun and put up lots of forums, (they are not moderated but everything else is.) i really dont care what you talk about but dont come here to just chat about nothing. go to my next blog, for now i am most interested in mortars or launchers. so lets get some ideas going. ill put up another forum just for ideas. So just have fun and enjoy yourselves. XI3
Posted by XI3 11 years ago | last reply 7 years ago
Asked by eaaaa 9 years ago | last reply 8 years ago
Asked by eaaaa 9 years ago
Imagine that you take a four foot long iron pipe and cap one end of it. Near the capped end, you make reasonably sized exhaust holes. Just above said exhaust holes, there would be a few metallic protrusions that would stop a round from sinking to the bottom of the barrel. Aforementioned round shells would be made of smaller, thinner metal and filled with propellants. Means of ignition is still TBA. But if such barrel and rounds were constructed, could it effectively launch rounds long distances?
Asked by Mr. Deeds 9 years ago | last reply 9 years ago
It is time for the first contest of the Innovative and Active knex gun Community! The rules are that the projectile must explode, like a splodie, or an I_Am_Canadians war bomb, or whatever you can come up with. With the exception of mortars, the bazooka must be able to be fired from the shoulder. The entries will be judged in explosive power, range, reliablity, and cosmetics, bonus points if you can replicate the RPG-7 or the AT-4, or make an airburst round. Contest ends August 25th NO ONE POSTED, THE CONTEST IS OFF (sorry for caps)
Posted by Knex_Gun_Builder 8 years ago | last reply 8 years ago
This is hilarious , i finally built my tennis ball mortar, i "accidentally" put way to much hair spray in lol. It launched well, but blew the back off so im going to have to build a new base lol. I have some pictures to show it lol. the sound was so loud that i can not hear a thing out of my right ear except a loud ringing. is that a good thing?lol heres the pics.
Posted by XI3 10 years ago | last reply 7 years ago
I would like to make an Alchemy Table (before I lose your attention please lemme explain) that has a removable Mortar and Pestle in the center. I am planning either to have a removable M&P; or have one just built in (carved). I would prefer the first option. I have thought of just creating a hole with a slight bevel to keep it secure but I need help on how to know how big to make the hole. If I can't get that done and need to make it built in then I would like to know how to make it structurally stable so it doesn't collapse under heavy grinding. (side note on the alchemy part: I am only an Alchemical Apprentice so I'm not ready to transmute anything yet. I'm only interested in it for medicinal purposes. This is going to be a summer project so I have some time to make sure I understand the principles or the practice.)
Asked by Iridium7 6 years ago | last reply 6 years ago
I recently built a pneumatic potato cannon, and i would like to use it in airsoft as a mortar of sorts. anyone have any ideas of something i could shoot that would cause splash damage when it hits the ground? cause i dont wanna have to hit someone directly, or hurt them......
Asked by generaljuan 8 years ago | last reply 7 years ago
I've been playing a lot of Gmod lately, a fantastic sandbox game with unlimited possibilities. There are many addons to Gmod, one of the more common for sandbox servers being Wiremod. There's a specific tool in wiremod called Expression2, which is a language very similar to LUA. I commited to learning E2, and I've come a long way. Being as young as I am, though, complicated math has always been a huge roadblock. I'm in 8th grade, I've never taken trig. I'm currently atempting to make a mortar of sorts, but most of the research I've done has been like an entirely different language to me. As far as I know, there's no drag or air resistance in Gmod, so I'd probably just need to include launch velocity, launch angle, launch position, and end position. All I really need is some pointers on a formula and how to use it. Anyone willing to help me out?
Asked by Nuurdle 3 years ago | last reply 3 years ago
I was wonder has any body made one because i was building one that folded into itself and had the abilty to fire things using fire works and rubber bands but the problem was when i but the rubber on in exploded its now completely destroyed so has any built one because i would some tips on builting the mortar
Posted by The ironman 7 years ago
I was thinking about using 3 pringles cans. I'd cut the metal bottoms off of 2 of them and tape them together ontop of the third one, which still has the metal. Then I'd tape/glue a capacitor from a digital camera onto the tennis ball and charge it up. It would hit the bottom, create a spark, and ignite the fuel. Would this work?
Asked by Shadow94 9 years ago | last reply 9 years ago
(a few tiny ideas) Basically a toy chainsaw that can cut through paper. Using hobby-R/C-like parts such as those tiny light motors would be a start. Reduced size, like a cellphone at most, mountable on a figurine soldier would be great. The miniature mortar should throw marbles on "mortar trajectories", you should be able to set the angle of the launch and (optionally) somehow the speed, though this wouldn't be necessary if the angle part is done well and the power is relatively constant at all shots. For ease it should be built only for angles above 45 degrees and the angle slider (or whatever the solution) should have marks (ticks) such that a user can remember and even create tables if he so wishes, in his war against coffee cups. Simplest solutions of "powering" would be rubber bands or coils from broken toys. A ping pong blower would be a tiny but strong fan (brushless outrunner motor) that keeps a ping pong ball "levitating" in mid-air straight up, but most excitingly even blown under an angle too. This wouldn't be a problem (physics takes care of it alone) just that the mount of the fan (ducted or not) should be operated and tilted as needed. This "levitron" would be a nice display on the desk running as long there's juice in the battery or else. Sorry if I'm not posting in the right place, these are just some ideas i'd love to build but i'm too clumsy and lazy :( Though my source of inspiration is the variety of USB gadgets commercially available, i'd like these to be more "free" and simpler if possible.
Posted by screwgravity 10 years ago | last reply 9 years ago
A friend and I are putting on a (legal) fireworks show tonight with commercial fireworks. I haven't finished my fireworks ignitor yet, so we're going to be lighting the fireworks with punks and running away. We're going to set up two "stations", one for each of us so one person can set something up while another sets something off. The problem is, the mortar set we bought only comes with one tube. I'm considering making another one out of PVC of the same size as the cardboard mortar tube, but this concern my friend. Is this unsafe, even if I stabilize the PVC and if it's the same size as the original tube? 7/6/10 UPDATE: I know it's past the fourth, but I'm still interested in kowing the answer. Thanks, Noahh
Asked by noahh 8 years ago | last reply 8 years ago
Sign-up for our newsletter here. Feb. 28, 2008 Welcome back! See who won the Lion Brand Yarn Slideshow Challenge! More contest news: March is Pets Month at Instructables, we're launching the Toss It! paper airplane speed contest today, and the Share the Love: Valentine's Day Speed Contest results have been posted here. Don't miss out! We'll be at SXSW Interactive March 7-11. Make LED Floaties with us at the PopSci party on March 9th! The Weekend Builder: Water Mortar, Stylish Lamps, Sugar-Waxing, and more cool projects! Check out these cool instructables! The SkyWalker TallBike Project Ride a 12-foot bike and see the world in a whole new way! posted by KoolKat on Feb 20, 2008 Turn an IKEA Applaro into a stylish lamp Turn "ho-hum" into "beautiful" with some artsy paper and wood stain. A nice and effective intro to IKEA-hacking. posted by corinna.anni.roc on Feb 26, 2008 Build a water mortar Build a super-soaker-like toy from PVC that can launch up to a quart of water per shot! posted by m32825 on Feb 26, 2008 Sharp low-noise photography with multiple photos This is a guide to using multiple shots and photoshop to get clean and sharp pictures. posted by ELF on Feb 21, 2008 Simple ways to circuit bend a toy Unleash the glitchy and awesome noises from within electronic toys once you get tired of their normal sounds. posted by nknouf on Feb 21, 2008 See which yarn projects won! Fuzzy logic Mood light with LEDs Enjoy a random light display with 25 LEDs creating a nice sci-fi mood for any room. posted by Pwntalive on Feb 27, 2008 Zero Point Shelf Avoid putting holes in the wall by "clamping" shelves between the ceiling and the floor. posted by mada on Feb 23, 2007 How to sugar-wax your legs Get some smoother legs with a waxing technique that originated in the Middle East. It may not be painless, but it is effective. posted by TraumaComet on Feb 19, 2008 Big lamps from IKEA lampan lamps IKEA's lampan lamps are OK on their own, but use a dozen in a spherical array and you get something magical. posted by daan on Feb 23, 2008 Circuit Building 101 A beginner's guide to building circuits that talks about the "proper" way to install components and also a little bit about soldering. posted by CuriousInventor.com on Feb 25, 2008 The Yoyos keep on spinnin'! The Anti-Yo Worldwide Video Contest will close to entries on Saturday night. Over 60 videos have been submitted from yoyoers all over the world, showcasing incredible tricks in different styles. Here are a few of our favorite videos so far. Each video is only 30 seconds long so check them out and talk to the yoyoers that made them. Remember, there are plenty more jaw-droppingly amazing videos in the Anti-Yo group! Blindfolded Yoyo Corporate Yoyo C-C-Combo! Smooth Moves Sonic Boom! Now go make something awesome, and I'll see you next week! - Eric
Posted by fungus amungus 10 years ago
I started thinking about how the tube material could be improved. Although I love the ghetto look of pringles wrapped in the invincible duct tape, improvements can be made. You could use PVC or ABS for the tube, it wouldnt need pressure rating because Im sure this thing wouldnt have enough power to explode the pringles/tape team. This is rather cheap and you could just glue on an endcap. Then a BBQ ignitor can be threaded in, a ring to define the chamber and barrel and fuel sprayed in! However getting the perfect cost/durability/strength ratio is hard.
Posted by SNDM 10 years ago
I've been looking for a way to make an airsoft mortar which uses either tension (by way of wrist rocket or similar bands) or compression (by way of a spring). I'm thinking it'd be similar to the trip mine here:https://www.instructables.com/id/Build-an-Airsoft-Trip-Mine/If anybody could give me ideas or post an instructable, that would be great. I don't want to use air compressors or light anything on fire, because it's just not practical mid game (that would also be just a manipulation of a potato gun). I also think compression or tension could be a lot safer if done properly. Any ideas on making shells to hold airsoft bb's and properly disperse them when fired would be great too.P.S. I'm totally willing to offer my input on the situation if somebody else wants to collaborate on such an 'ible.
Posted by spectral08 9 years ago | last reply 6 years ago
I've never worked with concrete before but I have a burning passion to make an usu which is more or less a giant mortar about 1 1/2 foot deep and 2 feet wide in the inside diameter that uses giant mallets as a pestles to pound sweet rice into mochi. What I need to know is what kind concrete will be able to hold up to hot steaming rice and constant impact with wooden mallets without cracking or chipping. My idea is to cut a garbage can down to the height I need and to use a styrofoam mold that are the diamentions of the hole I need. Do I need some kind of release agent or will the water evaporating from the concrete shrink it enough to allow the styrofoam to be taken out?
Asked by ssbookyu 7 years ago | last reply 6 years ago
I don't want to use the internet for these, and i made mortar and pestle for grinding with clay p.s. i have the charcoal
Asked by tarheels255 9 years ago | last reply 9 years ago
Ok well im trying to design a pvc mortar. I want to have it where the air chamber and barrel are side by side. I also want interchangeable barrels. My problem is how to make some sort of stand for it??? any suggestions
Posted by littlewarreno 11 years ago | last reply 11 years ago
Barefoot Waterskiing Mini S'mores Grill Burger Recipes Chocolate Stuffed Strawberries Tetris Ice Cubes PVC Sprinkler Toy Cooking From Scratch DIY Barbecue Sauce Memorial Day How to Fish USB Flag Memorial Backyard Theatre Fly a Kite Grilled Eggplant Parmesan Build a Water Mortar
Posted by randofo 8 years ago
For me, ordering online is a last resort, so I was wondering if anyone knew of any brick-and-mortar stores that carried something like that. Also, the woman who runs the chemistry dept storeroom at my university is a singularly unpleasant lady who won't even give students new equipment unless the lab professor insists.
Asked by zalf 9 years ago
I constructed 4" triangular molds out of cardboard (I am making coasters).I poured quikrete mortar mix into a cup, mixed with some water and poured into the molds until the depth was roughly .5".About 1 hour into drying I realized that huge cracks were forming!How do I eliminate or reduce cracking?
Asked by TaylorC86 11 months ago | last reply 11 months ago
I am thinking of investing on a wood lathe. I have seen a few lathes of different sizes. I would like to turn bowls, dishes, chalice and even mortars out of wood. What should I need to look for on a lathe? It is size important? Thank you very much once again! You are the best!
Asked by blkhawk 6 years ago | last reply 5 years ago
Well, my front yard is currently supported by piles of rocks where there is a ditch next to it, however only when there is heavy rainfall that the water passes through the ditch otherwise its empty. The piles of rocks were placed one onto the other and these were never mortared and neither has a good base. So, I have a huge amount of stones in my yard that I wanted to get rid of and also the quality of the soil where I live is very poor as it is like mortar when humid and blocks of soil when dry which I was thinking of using as backfilling. My question is how can I use the existing rocks to rebuild the retaining wall well, solid and also have a good look. By the way I live in Mauritius where the climate is humid and I live rather close to a mountain and river and the rocks are lava rocks meaning very hard. Please give me instructions on how to make everything from building the trench to finishing the wall and the tools that will be needed. thanks
Asked by Chamburn 6 years ago | last reply 6 years ago
Tennis Balls - weird color, weird shape. I have Acquired over 100 tennis balls recently but have no idea what to do with them. So I am coming to you guys for answers. I don't want ideas like "Tennis Ball Mortar" what do you think i did with the first 100 balls? Any ideas?
Posted by bumpus 10 years ago | last reply 8 years ago
I'm a gramdmother. I : cook, can home grown garden produce, recycle materials, sew, knit, garden, raise poultry, grammy doctor, quilt, chop stove wood,t an skins, shingle, work mortar, etc.etc.etc.................I have done pretty much anything and on top of that, raised healthy kids and grand kids. So how come I'm considered expendable? why aren't I treated as a valuable resource? Grand parents are amazing! We're here to keep the World turning..........Ask..........I will illuminate!
Posted by oddvark 10 years ago
The chimney is gone, leaving a large (about a bushel sized ) heap of oil soot on a concrete floor. Some has been shoveled up along with the mortar dust. There remains about a bucketful spread around a 1.5 meter square area... plus foot and paw prints over a larger area of new concrete. (I will be checking soon to make sure everyone and the dog are OK.) So what is the right way to contain this mess and get it safely out of the house?
Asked by mole1 2 years ago | last reply 2 years ago
Hello, I was thinking about ripping out all the rotted wood in my backyard garden and replacing it with basically a waist high garden area to grow herbs and I stumbled upon papercrete one day. I've never used papercrete let alone concrete in general. I was just wondering if I could get some general help on where to start. I'd like to make this out of papercrete block and papercrete mortar if all possible but I don't know what amount of newspaper, water, and portland concrete I need... or even how to make molds. -Jimmy
Posted by rexdino5 5 years ago | last reply 5 years ago
I made black powder using 98% Pure sulphur, 100% Pharmeceutical grade KNO3, and soft-wood charcoal. I ground it using a mortar and pestle becasue i dont have a ball mill, and when i burn it, its WAAAY too slow. like, i tried to put it in a rocket casing, and it didnt even light. it wouldnt burn at all. its bothering me, becasue i spent alot of money on it, and its not working. Any help? Thanks.
Asked by FunkNattidelic 9 years ago | last reply 5 weeks ago
Hi guys, Do any UK people know of nice suitable places to purchase the two-part polyurethane resin that mix together for making casts from moulds? Or the polyurethane foam that expands a bit when it cures? There's two places on eBay (TOMPS and another) but at Â£24 a kg with high postage costs, I was wondering if there's any bricks & mortar places I can pick it up, or other online places to buy the foam? I'm using it to thicken the shell of a Pepakura helmet so there's stuff to sand down. Any pointers please?
Posted by chiok 10 years ago | last reply 10 years ago
When a neighbor's whirlpool brokedown they decided they no longer wanted the tub. they took it up and threw it away. Being into recycling I took the tub and buried it up to the rim in the ground and using all the steps used to put in a pool liner. I have my rocks and have banked the sides so that the tub will work as a pool but now I'm not sure what is the best mortar to use to adhere the rocks to the rim and the upper foot of the tub walls. Please answer as quickly as possible as I want to finish before my family reunion this summer. Thank you.
Hi Everybody I have been boxing for sometime now and have been using a hanging heavy bag. But now I want a little more of kickboxing, so I need a standing bag. But I cant find one here. My "Instructables mind" kicked in and I decided to make my own. I also though of adding a pull bar to it. As in the photo, The black line is the bag stand, and the red one shows the pull up bar. I decided the wall and stand to be 5 feet apart. I may get something up but I thought of getting some professional advice before plunging in. Initially, I planed on digging a hole(about a foot deep) and then using mortar to make a properly round hole so the pole could just slide in whenever I want to use(coz it cant be permanent). And for the pull up bar I could drill a hole in the stand and push the pipe through it and attach a threaded pipe flange to the wall. Should I use pipe or wood. I prefer wood cause its easy to find. People around here have shifted to PVC, so I cant get the pipe from the general sanitary store next door. But I would somehow find it. I need functionality right now. Also if I use the pipe, would filling it up with concrete or mortar strengthen it??? So that's my idea. Any advice is welcome. I need something quick cause I plan to get it done the day after tomorrow.
Posted by Venemot 4 years ago
Some time ago I saw an ingenious Lego multi motor driven theater like presentation of a pirate ship sail into a frame and appear to get damaged by splitting into two. Now I have grandson who is a Whiz at all Lego and would be equal to duplicating this minor wonder. Regrettably my search skills are not up to locating this project here or YouTube Hope someone knows of this this ? I have always paid top dollar at brick & mortar stores, no longer exist If you are privy to a good big Lego Net store please let me know ?
Asked by iceng 3 years ago | last reply 3 years ago
Hiya, I'm a noob. I love the look of chunk glass lamps, and like hanging swag / pendant lamps, but the real thing is ridiculously expensive. So, I'd like to make one. The wiring is reasonably straightforward, any one of the kit things would work fine. Where I'm running into trouble is how to put it together. I know it's going to be heavy, which is ok; Elephant hooks from Amazon claim they can support a hundred pounds if put into a rafter. What I'm looking for is how to make the thing to attach the glass to. A lot of the existing ones (If you search google for 'chunk glass lamp' you'll find what I'm interested in) use either molded lead or mortar. I'm kind of looking for a slightly lighter weight solution; I'd rather the weight be pretty rather than structural. An idea I originally had was something like a 3d printed frame, maybe in sections that can snap together with a network of supports to glue the glass to, to allow a thin smear of mortar or clay or something to cover it, so the light only comes through the glass. I know many of the original ones from the 60s and 70s were lucite vs glass, Big hunks of glass seem relatively easy to find, big hunks of plastic not so much. If anyone has a good source for either or both, I'd love to hear. Be gentle, it's my first time here. :) (Tried to attach a file, but I'm at work, and it looks like the network is nuking it. Just search google for 'chunk glass lamp' and you'll find dozens.)
Posted by StarChaser_Tyger 2 years ago | last reply 2 years ago
Recently, I've been re-doing one of our bathrooms. (An Instructables is in-progress.) This project, and a number of previous projects, has generated a quarter-of-a-garage-full of debris that can't go in our normal trash and wasn't going to be reused by us anytime soon: ceramic and glass tiles, cement backer board, grout and mortar, giant slabs of marble Christy scavenged 5 years ago, etc... When I came across Bakari Kafele's winning Instructable, Vehicle efficiency upgrades: 28.5mpg (so far) in 2.5ton commercial truck, and his BioDiesel Hauling business, I was spurred to action. Last week, he came by and we loaded the junk up to be recycled, reused, or taken to the dump. Here's to finding local businesses through Instructables!
Posted by ewilhelm 9 years ago | last reply 7 years ago
Some 20 years ago, I built an addition onto my house. It is built on a concrete slab with 42 inch block foundation. I have a completely finished room in which I have installed ceramic tile flooring. Under the ceramic tile I used Ardex to level the concrete before tiling. For the last 20 years I have never noticed what now appears to be a "wet mortar joint" smell. I have become increasing alarmed about the slab leaching moisture into the room. There is no visible sign of moisture. The tile is not exceptionally cold; it's just that smell. Can anyone put my mind at rest, or suggest to me what this might be and how to remedy it. I definitely can not destroy the floor. Please advise. Thank you.
Posted by moea 4 years ago | last reply 4 years ago