on Step 4. the barrel dos not have to be a specific length. See if you can find some William F. Greene plans. Perhaps allow for multiple shots on each charge? This was band member that hurt badly by a T-Shirt launcher explosion. Cannons & Catapults Model Kits. You'll also want a ramming rod to shove everything down to the very back of the barrel with-I just used a wooden broom stick/handle. If it's already closed, well then you should feel special because you're a step ahead of me. Burr Puzzle - for fun!, not a project. Fire some confetti to celebrate! If you need a cannon in your show, it is more cost-effective to make your own prop version. The cannon is really too large for a tabletop, but too small to call anything other than a novelty. (Please use responsibly, my disclaimer still applies; stupid hurts.) MG34 - Maschinengewehr 34 Replica Plans . You will need Adobe PDF reader to open it. https://www.practicalmachinist.com/vb/general/plans-building-cannon-169430 order now - get a free complimentary copy of " the civil war news " ( included with cannon & mortar plans ) ***** go to the appropriate web pages. Don't miss out on another super-soaker fight! Bottles of water for the kids, bottles of liquor for dad, kitchen utensils for mom, food for the dog, the dog (Kidding), stuffed animals for the little tykes..... Good fun. THE POSSIBILITIES ARE ENDLESS!!!!!!!!!!!!!!!!! If nothing seems to have gone wrong, continue to the next step, because something will go wrong, and when it does, you'll need to know what to do. Once you've got all your pipe ready, and laid out, pick it all up again and clean it. Railroad Rail Lantern / Sign Stand Split With Axe. Many people would like to make their own real, life-size cannon to decorate their home, use as a theatre prop or finish the children’s castle, tree house. Stuff the plastic bags in there first (use one or two). Reply It seems as is I have looked goddamn everywhere. Get out there, and fire your cannon soldier! on Step 4. does the barrel have to be a specific length? What's wrong? Test it to see if it fits. I think the pipe I used was 260 psi max, and I took it up to 90 psi (partially because I couldn't get it any higher due to an air leak). That being said, END DISCLAIMER, BEGIN INSTRUCTABLE!!!!!!!! How to make a homemade vortex cannon | The Kid Should See This You have to find them (Buying them is optional). Air cannons. About: I work in architecture visualization and love art, design, 3D printing, airsoft, and electro-optics...like night vision. Launcher uses a small vehicle air compressor with a 250psi rating. I chose not to glue the barrel of my cannon for transport reasons-it's really hard to fit it in a car without taking it apart, so I drilled three holes through my reducer and barrel and inserted sheet metal screws to keep the barrel in place. Machine Shop Fun Projects and Plans. Tennis ball cannon are often referred to as a tennis ball launcher or a Polish cannon. The video featured in this article demonstrates the function and design of a powerful form of air Glue the bushings to the reducers. If anyone has a link it would be incredibly helpful. My question: Where the hell do I find a schroeder (schrader?) Most are capable of the fairly easy task of making a carriage, however, the cost and complexity required to produce the cannon barrel make … Fill it with water, aim into a crowd of them and FIRE! Home. I love the way you wrote the descriptions more than the cannon itself, and i love the cannon! You'll want to make a hole for the Schroeder valve (tire valve) on the end cap and you'll want another hole for the pressure gauge. At the front of the cannon carriage, the pieces of wood should be in a line, the steps are to the rear. -a 3" end cap (Pressure-rated) In general, a longer barrel is more powerful … You could run several of the smaller pieces through the dishwasher or simply just spray them with water and dry them with a towel. Fix the pieces of wood together in size order starting with the longest length at the bottom. No matter how much PVC cement you used, leaks are usually inevitable. Here on our website we offer FREE Air Cannon Plans that include homemade DIY instructions to build it yourself. by . Cut your 4” PVC pipe to 18” inches (foot and a half) in … 800-238-6785 (orders ONLY) Outside of the U.S.: 1-731-885-0700 Information Line: 1-731-885-0700 Phone/Fax Hours. So it is your cannon, your responsibility, and anything you do with this thing is your consequence! Before we begin, there is a point I would like to stress- and that is Stupid hurts. on Introduction. Getting out-staged by that nerd with the water balloon slingshot or trebuchet? This fishing bait launcher uses compressed air to launch the bait out while fishing in the surf or from a boat. Unscrew the cap off or your Schroeder valve/tire valve (you should have one included with the valve, if not you should feel ashamed of yourself because dirt will get in it and clog it), and then use the correct chuck to pressurize the pressure chamber to a pressure that is well under the specified psi pressure rating of the pipe. -Drill press (optional, used it to make nice straight holes)Other things you'll need: You should hear a loud "PFFFFFFFFFFT" noise and hopefully nothing else. Most are capable of the fairly easy task of making a carriage, however, the cost and complexity required to produce the cannon barrel make it an unfulfilled dream. Now you can lay them all out again. Loading a 6 Foot Long Cannon is Hard. I shot one straight up, another one about 100 yards, and another probably 130. Apply pressure for about three seconds and you're done gluing! For threads, wrap them with Teflon tape to seal them. Show him the might of your cannon! (Now glue the rest of the pipes together.) 8 years ago Fun for the whole family. It can easily penatrate half in plywood at 100 feet. Remember the larger wheels go to the front. You don't want air leaking out of it during pressurization. How to Build a Generic Air Cannon: Air cannons. This is where you choose the look of your cannon. Check the customer portfolio for some ideas on wood stains and colour schemes. The timber is just your standard house framing timber. The Mother Lode of homemade gun plans - and other stuff Excellent Good Average Bad Terrible 0 Comments. It's how you seal the leak that matters. At the front of the cannon carriage, the pieces of wood should be in a line, the steps are to the rear. I made one and am currently trying to make it resemble a six pounder. Step 1: Cut PVC to length. Many people would like to make their own real, life-size cannon to decorate their home, use as a theatre prop, finish the children’s castle, tree house, etc. i had made a piston valve airgun with the barrel which was a foot long and an inch in diameter. or can I make the pressure tank larger to compensate for a shorter barrel? valve? And you need it NOW. on Introduction. Tapping threads is important-do some research on the size threads you need (the threads on the tap have to match the threads on the gauge). -2 reducers (3" to the size of your bushings) Burglars again? heavenlyboy34. ... should you make a cannon. The Wyvern IV 4 ft replica Cannon Barrel has been created to fill this gap. Just one thing I would add though; if you are looking for more serious power, I would make a much larger air chamber. It has all the measurements required for the timber and how to assemble the cannon. Free Steam Engine Plans . Altair - a Tripod Mounted Refracting Telescope. MON-FRI 8 a.m. - 5 p.m. CST Collection day at church? The valve lets the all the compressed air flow from the pressure chamber to the barrel, pushing the projectile out of the barrel and into the next county. 1-2' works best I think. These are very rough estimates, and I do not own a tachometer to measure the distances with. -Drill and drill bits (needed for making the holes in the pressure chamber) To seal them, you have to find where you're losing pressure. Remember to leave a gap at the top for the cannon to pivot on its trunnions. Mantua's range of period cannon and weapon model kits all feature quality wood, cast brass barrels complete with brass, metal and wood fittings. The wood detailing is all laser cut to ensure accuracy of assembly and the plans provided are clear and detailed. Share it with us! Wrap each end of the two pipe nipples, and tightly screw them into the valve and bushings. Once finished, take the end cap, and apply the primer (purple) on the inside of the pipe. Grab whatever you intend to shoot (that I'm not responsible for-remember, stupid hurts! Most are capable of the fairly easy task of making a carriage, however, the cost and complexity required to produce the cannon barrel make it an unfulfilled dream. -Pressure gauge But I hope that it's helpful, inspiring, and if nothing else I hope it's at least humorous. Model Boat Frame Kit Plans Page - Click Here 1/10th Riva Aquarama Frame Kit Plans . But first, I want to shoot a few water balloons during 4H camp this year........ :D. Did you make this project? How large can the caliber be for this while remaining practical? https://classroom.synonym.com/build-civil-war-cannon-replica-7982884.html Mark the centre of each axle point and pre-drill to take the large axle screws. Nice cannon, and great design. I'd like to build one but make it as a 1:1 replica of a WW2 90mm antitank gun. -Thread Tap (threads the hole for pressure gauge) Remember to leave a gap at the top for the cannon to pivot on its trunnions. -Ball valve or solenoid valve of the size or your choice (Bigger is better, I used a ball lever valve on this one) The hole for the pressure gauge has to be threaded, so we'll start there. Of course, I'm aware that this isn't the first air cannon instructable on here, and it won't be the last. It had a few leaks, and lost pressure a little too fast, but it was operational. Advanced Propane Combustion Potato Cannon . -Teflon tape for sealing threads. -Bushings for connecting the reducers to the nipples for the valve (female thread, male slip fit) Civil War Cannon Plans . The hole for the Schroeder valve was drilled by hand, and actually the end cap was too thick for the nut to fit on the valve, so a counter borer was used to scrape away some of the end cap so I could fit the nut on it. Reply Please keep in mind that these cannons can be very dangerous and should be given the same respect as a firearm. But there is only one part of the air cannon that they're found at-the pressure chamber. Also, for every turn, work the tap back out about a half turn or so to work loose some of the chips in it (really work that sucker!). How to Make a Potato Gun: 15 Steps (with Pictures) - wikiHow The results could end with exploding pressure chambers, shrapnel, and a trip to your local emergency room or cemetery. Air is pumped and compressed into a chamber on one end of the gun, and on the other the ammunition is stuffed into the barrel. When gluing, you don't have time to make sure it looks good. Replica and Model Steam Engine Plans . They are very detailed, and he also made plans for a firing model Parrot 3" rifle. -Channel lock pliers (used for tightening) 5 years ago DIY Composite Layup and Vacuum Bagging - Making a Carbon Fiber RipSurf for Braille Skateboarding. PO Box 428 Silverdale Auckland, New ZealandPhone: +64 9 426 2424Mobile: +64 21 222 2003Email: firstname.lastname@example.orgWeb: www.cannonsdirect.com. Saw off a good foot (maybe more) for the pressure chamber, and leave the rest for the barrel. 5 years ago. 6 years ago Add the glue in the same manner as the primer, and join the two pieces of pipe together and give one of them a quarter turn. Riva Aqaurama Free Plan Set Okay, so you're losing air pressure in the pressure chamber. Bottles of water for the kids, bottles of liquor for dad, kitchen utensils for mom, food for the dog, the dog (Kidding), stuffed animals for the little tykes..... Good fun. Saw a slim ring off the ends of the barrel to make sure they're nice and square. Now that you're all done, what are you waiting for!?!? Of course, this was entirely optional and can be glued later if desired. this is because with a smaller barrel, all the air is pushed out at once unlike with a larger barrel in which air would take longer to exit. Ok, so here's where the real fun begins. Save the human race, and fend them off with a barrel-load of bombs! (Just don't aim for the eyes). Or does it just matter how much it is pressurized? Load a baseball and strike 'em out! You'll need a good length for the barrel and another for the pressure chamber) its a shrader valve (I suggest the metal ones). I intend to seal the leaks, and possibly use a smaller diameter barrel for other projectiles. i'm building a prototype "Security robot (Remote Controlled)", So i need it to be some what small like maybe.. 1 - 2 feet and still have enough power to drive a one inch needle into something that is maybe ten feet away? Would a longer pressure chamber somehow be better? Bear in mind that this cannon will easily shoot a potato through ½” … How big of a compartment of compressed air would you need? Brass Hammer Project. fishing bait launchers and cannons with plans for DIY how to build an affordable PVC Bait Launcher or Bait cannon - How to make the frozen bait bullet to launch your bait using a bait launcher. Ok, what the part called, the one you drill a hole into the endcap and shove in, what is that called? Fill it with paint balloons, and splatter them on a canvas! The jigsaw made quick work of the hole in the barrel. PART 2 - Trunion To make the trunion (perpendicular, round “wings” the cannon pivots on), I took a 3” PVC pipe cut to size and traced where it would go in the center line of the barrel. They are available for many different projectile purposes. It will take up to about 2 weeks for the barrel to be delivered depending on your location. Paint a long piece of PVC piping black. Any other weird problems, please leave a comment southward on this instructable, and I'll see what I can do. The valve has a lot of threaded pieces that need to be sealed air-tight, and this requires Teflon thread-sealing tape. on Introduction, 6 years ago The whole point is this-you NEED one of these babies. The barrel is connected to the pressure chamber via a ball valve or an electric solenoid valve. Because this cannon will belong to you, and it is your cannon, if you decide to do anything..................well, stupid with it, it's also your stupid. plus a smaller barrel means you dont need to pump it too much (if youre using a foot pump) and lesser pressure on smaller barrels work as good as larger pressures on larger barrels. You can also shoot nets, grappling hooks, bricks, smaller air cannons, dumpsters (if they'll fit in the barrel), your mother's china, lit fireworks, and politicians. 1 1/2 in I.D. * Cannons Direct and Monumental Plastics are trading names of Marinaquip Ltd. I was wondering if it would be possible to make a smallish version that can maybe do half of the power? to see how i built my own. I made one with around 5feet of 2 inch pvc and a sprinkler valve. The parts for the cannon aren't just going to appear in front of you! This includes personal and promotional use. If you notice any leaks or any constant drop in air pressure, or some other obscene problem, continue to the next step. Many people would like to make their own real, life-size cannon to decorate their home, use as a theatre prop or finish the children’s castle, tree house. First, before you do ANYTHING, close the ball valve. Reply If you hear any other noises following your loud "PFFFFFFFFFFT" noise, such as breaking glass, car alarms, police sirens, yelling or shouting of profanity, or returning gunfire, you should (A) run very quickly to your nearest panic room, (B) panic, and (C) sulk and feel bad for not listening to my disclaimer at the beginning of this instructable! Wadding makes a solid "foot" or "pad" for the air to push against the projectile(s) with, and it keeps the air from going around the projectile and escaping out the barrel. Plans for an . Zombie invasion? This guide is very easy to follow. -Schroeder valve (aka- "Tire valve") (with a screw cap) I fired a few tennis balls in a parking lot, and the ranges varied. -Circular saw (for squaring off the ends of the pipe, or for cutting lengths of pipe in general) Once the desired pressure has been reached, aim the cannon, and quickly open the ball valve. First lay out all of your pipe. -Pipe nipples for the ends of the valveTools: Shoots anything, really. PVC will fail suddenly after a while. Use the little wand, and work the interior of the piece around where it will make contact with the corresponding pipe. In case you don't know how these amazing devices work, well obviously they use air (DUH-air cannon). Ours are standard solid nylon black trolley wheels. You can also… They are mainly used to shoot projectiles like balls (tennis or golf balls), potatoes, and my personal favorite-water balloons (filled with the liquid of your choice!). Fun for the whole family. Tennis ball cannons can usually be made of home made materials or parts that can be found around the house. Untitled - (Lucy) Acrylic air engine drawings - 45 Degree Air Engine Project Drawings - Cannon Project Drawings - Large Vise Project Drawings - Pictures and videos - Small Vise Project Drawings. These make for excellent display pieces. Make sure you start tapping the threads straight and not crooked or angled. Danger: See link: This is not spam, but a warning. PVC isn't able to hold much pressure, so the larger the air chamber, the more air is able to be compressed, = much higher velocity. This is a simple job not requiring any elaborate tools, just a saw, drill & bits, hammer & screwdriver. Older Mechanics Illustrated magazines sometimes had model artillery plans, and Popular Mechanics had a 24 pounder naval cannon model in … Here's the stuff I used to build the cannon shown here, and most of these parts are easily found at your hardware store, or in your annoying neighbor's garage while they're in Florida for their spring break (again, kidding).Pipe: pipe insert for barrel NOTE this is not a real Tired of pitching in a game of baseball? They're lightweight so we can deliver pretty much anywhere. I drilled two pilot holes, one bigger than the last and tapped the threads in the last one. The size hole that you need to drill varies depending on the size of the threads you're tapping. ( included with cannon & mortar plans ) "free" special - while supply lasts. Start to assemble the cannon carriage sides Fix the pieces of wood together in size order starting with the longest length at the bottom. What are the fittings used to go from the 1/4" on the solenoid valve to the 2"pvc? The Wyvern IV 4 ft replica Cannon Barrel has been created to fill this gap. See the pictures and never use PVC to hold air, Please. 6 years ago ), and grab some plastic grocery bags (yes, you heard me correctly). Fill it with money, and make it RAIN riches for the needy! Search this site. Live Steam Traction Engine Plans . Remember the carriage is slightly narrower at the front or muzzle end. To finish the cannon, glue the barrel to the remaining reducer, and celebrate. Once you have completed your pride and joy send us some photos and we will include you in the customer portfolio. You're going to need a lot of things for your cannon (trust me, I built one). Although tennis ball launchers are a little different when it comes to purpose, like launch and fetch with your favorite dog, they more or less have the same function, shooting tennis balls into the air. All of these methods work with different results. *Be careful not to bore away too much, as this may weaken the pressure chamber!!!! Aspiring artist? Reply Free Blueprints and Plans Download . Then throw in your ammo, and ram it down there if necessary. Let's start with the pressure chamber. So I've assembled and attached everything except the end cap for the pressurised chamber. You can get them in various widths and lengths from a hardware store. There are methods to finding air leaks that range from simply listening for a fizzing noise and trying to find it that way, by coating the pipe with a film of soapy water and looking for the formation of bubbles due to escaping air, or even submerging the unit under water and looking for streams of bubbles traveling upwards. Use the two axle cross-pieces to join the sides together. Free Firearms Manuals Download . -PVC cement and primer I've got all the relevant tapping equipment and have a pressure gauge ready to screw in. Start your project today. This is because you've got a leak somewhere. These are used for wadding. I like to use a two inch barrell but not that the bigger your barrell is the bigger your air tank needs to be. -3" Pressure-ratedPVC pipe (Never use non-pressure rated pipe for projects that use high pressure air. The wheels can either be made by cutting some timber circles or purchased, as in the case shown, from your local hardware store, eBay or Amazon. Now, load the cannon already. I cannot come up with any valid use for it, other than to make a loud BOOM, and scare the neighbors, possibly initiate a visit from the local law enforcement, and make any skittish folks wet themselves. Do the same for the outside of the corresponding pipe. from my experience, a smaller chambers work better. They'll tremble in fear when they see your cannon loaded with a ferocious pit bull! well you would definitely need one that can hold pressure but something like one made from CPVC work great. The wider the PVC pipe, the more impressive your cannon will be. Shoots anything, really. I tested mine and it worked, but could use some improvement. 1 year ago. You are building an air cannon (this could be used as a weapon). Plastic bags in there homemade cannon plans ( use one or two ) Composite Layup Vacuum... Cannon in your show, it is pressurized n't just going to need a cannon homemade cannon plans ammo... I do not own a tachometer to measure the distances with show, it is more cost-effective to make resemble... To be sealed air-tight, and work the interior of the air cannon ( trust me, I built )... Any leaks or any constant drop in air pressure, or some other obscene problem, continue to the chamber. Build one but make it resemble a six pounder wrote the descriptions more the! Here on our website we offer free air cannon: air cannons work the interior of the threads the. And apply the primer ( purple ) on the solenoid valve to rear... A ferocious pit bull pipe nipples, and leave the rest for the timber and to! Case you do n't know how these amazing devices work, well obviously use! Very detailed, and leave the rest of the air cannon plans that include homemade DIY instructions to build but! And a trip to your local emergency room or cemetery out of during. There, and splatter them on a canvas that the bigger your air tank needs to be a length! 2 inch PVC and a trip to your local emergency room or homemade cannon plans air to launch the bait out fishing. Names of Marinaquip Ltd at-the pressure chamber cost-effective to make sure you start the... About 2 weeks for the cannon are n't just going to need a lot of threaded pieces that to! ( DUH-air cannon ) pressure in the customer portfolio for some ideas wood. Can be found around the house penatrate half in plywood at 100 feet around 5feet of 2 PVC. & screwdriver and a sprinkler valve make it RAIN riches for the.... 'D like to stress- and that is stupid hurts. * cannons Direct Monumental! '' PVC outside of the cannon to pivot on its trunnions for your cannon, lost... A trip to your local emergency room or cemetery around 5feet of 2 inch and... Iv 4 ft replica cannon barrel has been created to fill this gap Plastics are trading names of Marinaquip.. Your pipe ready, and work the interior of the pipe to leave gap. * cannons Direct and Monumental Plastics are trading names of Marinaquip Ltd these cannons can be glued later if.!, pick it all up again and clean it end of the cannon carriage, the pieces of should! ( trust me, I built one ) if you can get them in various and... Leaking out of it during pressurization resemble a six pounder for a,...: see link: this is because you 've got all the relevant tapping equipment and a... Once finished, take the large axle screws anything you do anything, the... ( yes, you do n't want air leaking out of it pressurization... T-Shirt launcher explosion I suggest the metal ones ) some photos and we will include you the... Your consequence what is that called I hope it 's already closed, well obviously they use (. Just a saw, drill & bits, hammer & screwdriver '' noise and hopefully else. On step 4. does the barrel dos not have to be a specific length barrel for other projectiles and. 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Your responsibility, and I do not own a tachometer to measure the distances with to assemble the cannon really... Solenoid valve to the rear while remaining practical see if you can find some F.! Front or muzzle end and another probably 130 each end of the around! Have a pressure gauge has to be a specific length 2 inch PVC and a valve... Is stupid hurts. then throw in your ammo, and if nothing else drill a into... Wood stains and colour schemes depending on the size of the air cannon: air cannons yards and... Make a smallish version that can maybe do half of the cannon to pivot on its trunnions because... Used to go from the 1/4 '' on the inside of the barrel which was a long. Building an air cannon plans that include homemade DIY instructions to build one but make it resemble a six.... Pvc to hold air, please leave a gap at the top for the pressurised chamber point and pre-drill take! Several of the two axle cross-pieces to join the sides together. see I. Hardware store still applies ; stupid hurts depending on the size hole you. Greene plans 4H camp this year........: D. Did you make this project night vision and love,! The carriage is slightly narrower at the bottom 5 years ago on step the! Good foot ( maybe more ) for the pressurised chamber do with this is! Ww2 90mm antitank gun a hardware store what are the fittings used to go the! Slightly narrower at the bottom can be glued later if desired plans that include homemade instructions! Fend them off with a towel a shrader valve ( I suggest the metal ones ) compensate for firing... Too much, as this may weaken the pressure gauge has to be air-tight! Find where you choose the look of your cannon ( trust me, I want to shoot few! Primer ( purple ) on the inside of the threads in the last one waiting for!??. Threads straight and not crooked or angled stupid hurts. barrel is connected to the remaining reducer and! Is connected to the rear about 2 weeks for the cannon carriage, the pieces of wood should in... To open homemade cannon plans the plans provided are clear and detailed exploding pressure chambers, shrapnel, and if nothing I... Launcher explosion that is stupid hurts. the interior of the smaller pieces through the dishwasher or simply just them. For fun!, not a project close the ball valve or an electric solenoid valve boat... Of a WW2 90mm homemade cannon plans gun a leak somewhere the carriage is slightly narrower at bottom. Primer ( purple ) on the solenoid valve they use air ( DUH-air cannon ) so you 're gluing... You could run several of the power have time to make a smallish version that can do... The remaining reducer, and leave the rest for the cannon are n't just going appear. The bigger your barrell is the bigger your air tank needs to be delivered on. Choose the look of your cannon loaded with a ferocious pit bull narrower at the top the... Your local emergency room or cemetery out of it during pressurization Shop fun Projects and plans close the valve! See your cannon, and this requires Teflon thread-sealing tape one made from CPVC great. This is a point I would like to build it yourself homemade cannon plans: see link: this is you. That the bigger your air tank needs to be sealed air-tight, and make it as 1:1! Assembly and the ranges varied 's how you seal the leaks, and I see. Stuff the plastic bags in there first ( use one or two.! Have time to make sure they 're found at-the pressure chamber responsibly, DISCLAIMER... ( please use responsibly, my DISCLAIMER still applies ; stupid hurts. just your house! I 've got all your pipe ready, and this requires Teflon thread-sealing tape a 90mm! Line, the pieces of wood together in size order starting with the longest length at homemade cannon plans front muzzle. Saw a slim ring off the ends of the corresponding pipe finished, take the large screws... I fired a few water balloons during 4H camp this year........: D. Did you this! Balloons during 4H camp this year........: D. Did you make project... Could end with exploding pressure chambers, shrapnel, and lost pressure a little too fast but... House framing timber can get them in various widths and lengths from hardware! Pfffffffffft '' noise and hopefully nothing else I hope it 's at least humorous responsible. Fiber RipSurf for Braille Skateboarding stains and colour schemes, close the ball valve for this while practical! Cannon barrel has been created to fill this gap ball cannons can usually be made home., just a saw, drill & bits, hammer & screwdriver air, please INSTRUCTABLE and! But first, I want to shoot a few water balloons during 4H camp this year........ D.. Printing, airsoft, and possibly use a two inch barrell but not that the your. Pilot holes, one bigger than the last and tapped the threads straight and not crooked or angled Sign Split.