Using free foam and some expanding foam I've built a 6 by 6 archery target/backstop. Easily moved and repaired (I think)... Feel free to offer feedback...
Пікірлер: 25
@BruceEEvans12 жыл бұрын
My whole life I have heard, "Oh you can get this at any blah, blah." But I have never been able to find whatever it is. If you go to your local hardware store and ask for the item they look at you like you are speaking Klingon. So with no small trepidation, I went to the Tractor Supply and asked for the big blocks of styrofoam. "Oh, yeah. Around back. Take whatever you need." I have 25 huge blocks of styrofoam sitting on my patio. Thanks for the tip!
@knifethrower93722 жыл бұрын
You are welcome, spray foam works as a glue....
@BruceEEvans12 жыл бұрын
One of my concerns was how deep an arrow would penetrate if it hit a crack between blocks. That happened tonight. The arrow only went in about a third of its length.
@1984GOrwell2 жыл бұрын
@@BruceEEvans1 when I strap the blocks tight, hitting the cracks does not make it weaker and allows greater penetration. Crumbling and durability is the problem.
@1984GOrwell2 жыл бұрын
I did exactly the same. I scored 31 blocks and strapped them, into a 6'x5'x1.5' giant target/backstop. The problem is in one session at the archery range, I have bits of styrofoam blowing all over the lawn. I was using a 25 pound longbow at 10 meters. In less than 100 shots, I have a crater almost punched through to the other side. The TS blocks are approximately 1 pound density foams. At home, I have a purchased 2 pound density styrofoam 4'x4'x1' block. Same bow and arrows at 7 meters. It took about a 850 shots to get the first arrow to go through to the back. I can get 12 shots into a 6 inch diameter circle. As the center of the cone shape crater gets thinner and thinner, the arrow tips gets closer and closer to the back of the 12" thick block. As you can see, there is a huge difference between the 1.5' deep 1# density block vs. the 1' deep 2# density block. It was a good experience to understand all this. The price of all this is the thrill of scoring 31 free blocks and the feeling of defeat of the experiment not working out and have to find a way to get rid of 31 blocks. Well, 30 blocks. ONE of the block was left behind at the archery range as crumbs. I used a full can of Loctite Windows and Doors spray foam to repair the crater at my home's 2# target. The low expansion W&D would end up slightly denser than the regular expansion variant spray foam. I also use it in my cold and low humidity (it's winter) basement so the expansion is further limited. It took longer than usual to cure. Left a lot of voids inside. Judging from finger pressure, it is approximately slightly denser than the 2# block. It is also has a less tendency to breakdown into crumbs. It is "stretchier" or "gummyer". So it is a good thing. Have not test it with arrows yet. I will update later. UPDATE: The spray foam is a bit lumpy but it's OK. Going to poke holes in it anyway. It is a lot cleaner, less crumbs on the floor. Styrofoam crumbs are hard to clean because of the static electricity. It grips the arrow a lot tighter than the original 2# styrofoam. I think it has a bit of polyethylene in the formula to make it gummyer, stretchier and less crumbs. It hold together well. The heat generated by the high speed penetration melts some of the said polyethylene. Polyethylene is the plastic foam packing materials. They tend to be self healing. The hold size will shrinks down after you pulled the arrow. The melting part is what makes it not ideal for arrow target. It leaves a plastic residue on the first 2 inches of the arrow tip. It is not easy to scrape off. I give the Loctite spray foam a thumbs up for 2# density styrofoam block repair. My next repair will be using fence post anchoring foam. After the mixing, it pours as a low viscosity liquid. I expect it to have less voids, unlike the can spray foam that injects a lot of gas propellant into the mix. I hope density is at least as high as the Loctite and have the same or less tendency to crumb. UPDATE: Fast2K Fence Post Expansion Foam is a lot harder and denser. It grips the arrow very tight. So use an arrow puller tool. The problem is that it is very brittle. Powery crumbs comes off from it. The surface is so hard and brittle that punching with my knuckle will crack the surface with an indent. It is NOT ideal for foam black repair. I will try different brands of fence post foam. I will eventually try Fast2K again. The first try was in a cold dry garage. These chemical needs higher temperature and more humidity. An ideal styrofoam density would be 2.5# or 3#. 3# density may have my arrows from a 25# bow bouncing off of the target at 20 meters. At 10 meter, 3# should be OK. If I am to buy another 2# block, I would get it at 1.5' thick. At 2.5# or 3#, 1' thick is fine .... using a 25# bow at 10 meters.
@stiixbeatman3 ай бұрын
FYI, I use the same thing and compound does just fine, penetration is deeper but does not melt the Styrofoam. My arrows speed is 235 @ 60 pound draw.
@1984GOrwell2 жыл бұрын
I am in central New Jersey. It comes down to who you talk to at the Tractor Supply. If you talk to a low level clerk, they typically don't know what they do with their left over foam blocks they used for shipping trailers. They just know they stack it somewhere in the back lot until a big giant dumpster shows up and they unload them. My experience is that these clerks don't know that they can just give them away and save themselves some extra work. Or, they just don't want to deal with you and want to make you go away. So they make up some reason that you cannot have them. If I approach the store manager, he typically do understand what they do with it. They recycle them. If someone takes some, it just means they have to do less work. It usually cost money to to get the dumpster delivered and hauled away. Giving them away means they will save money. So, my experience with 3 different Tractor Supply's has been good with the store manager. Just don't leave a mess after you sort out the clean ones and ones that are not chewed up. There is a plastic wrap around them. Take them and throw them out at your own house. Or, remove them at the TS site but keep things neat and clean and not allow the wind to spread the bags all over after you leave. Better yet, throw them out in the garbage dumpster on site. ..... if you want a regular supply of the blocks. Don't forget to go back in and thank the store manager. AGAIN, don't leave behind a mess.
@robinfielding11082 ай бұрын
Styrofoam is a great target material I used crawl space Styrofoam taped together for a back stop before I'm going to try stopping crossbow bolts when we move into our new house. along with my recurves.
@littlehills7398 ай бұрын
free carpet wall in frt of the foam carpet and underlay are free
@tonyinfinity4 ай бұрын
Geez this gives the saying "you couldn't hit the broadside of a barn" meaning. How big of a target do you need? LOL
@fluxrandom2 жыл бұрын
How does this withstand the elements? I'm in an area with a decent amount of rain and snow, would love to know how yours has held up over the years.
@knifethrower93722 жыл бұрын
Sun beat it up a bit. Like any foam left unprotected. Still stopped arrows until I threw it away because I moved. That was early spring.
@MyAvenueDesign3 жыл бұрын
Are you in the Verde Valley AZ?
@robsarchery96793 жыл бұрын
nice
@magebear72 жыл бұрын
These are fine if you want bits of styrofoam everywhere...
@YT-User10132 жыл бұрын
Yea, I hate that!
@wataboutya93104 жыл бұрын
How well has it held up?
@thearchersparadox32924 жыл бұрын
I am still using it and it is holding up well.
@CameronStewartDC3 жыл бұрын
Very smart for a backstop
@timparrish18473 жыл бұрын
Great for a back stop I made a 24"x24"x10" spray foam target with two rubber mats spaced into the foam Frist shoot at 45 yds blow through it and 2 1/2" plywood walls on a shed with a compound bow at 65 lbs The other bow I have would blow through those block But for a back stop it may work
@wataboutya93103 жыл бұрын
@@timparrish1847 Sounds like an, “Oh shit!” moment. 😎
@jayytee80623 жыл бұрын
@@timparrish1847 Sounds as if you're use broadheads...?