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Ryno
Приєднався 28 сер 2006
Відео
Statue of Liberty via DRONE
Переглядів 602 роки тому
Ok - this is actually the S.O.L. of Dauphin, Pennsylvania. I've driven past this thing so many times from the highway and had to take the opportunity to experience it up close
Using foam to level an above ground pool on a patio
Переглядів 48 тис.3 роки тому
I haven't seen anyone else do it like this, so I thought I'd share.
How to fix an unbalanced fan
Переглядів 2085 років тому
If you think your fan is vibrating because the blades aren’t perfectly in balance, watch this video for the fix.
Zip Line Calculations
Переглядів 33 тис.5 років тому
These calculations are specific to the system that I installed - with cantilevered "anchors" for the zip line instead of trees. Built and tested the zip line here: ua-cam.com/video/tZVidnXewBQ/v-deo.html
Zip Line without trees - anchors
Переглядів 160 тис.8 років тому
This video describes my cantilevered anchors. Our yard has no *suitable* trees like the manufacturer recommends. A more recent video here: ua-cam.com/video/a1KPl-M-dpM/v-deo.html discusses my engineering calculations if you're into that kind of thing. Someone used my recipe! - ua-cam.com/video/gJCa9wlapxQ/v-deo.html
zip line
Переглядів 1,2 тис.8 років тому
line attached to tops of 8'foot high lumber (4x6"), on a 90-foot long run with 6-foot drop.
Maya and Ryan riding the roller coaster at Mall of America
Переглядів 2588 років тому
This thing went around the entire stadium-sized interior atrium of the MoA!!'
Backyard campfire and marshmallows.MOV
Переглядів 12713 років тому
Backyard campfire and marshmallows.MOV
Little Girl Burns Wood with Magnifying glass
Переглядів 89114 років тому
Little Girl Burns Wood with Magnifying glass
So I have two decks 85' apart form each other in the back yard. One is 6' 6" from the ground to the deck floor and the other is 6' from the ground to the deck floor. On top of these decks are little buildings that are 7' tall at the tallest points. Do you have any advice on the length of post/board and how deep to bury it to support riders of 250 lbs or less? Also, how should I mount the zipline to the beams/boards/posts? I see your mounting here, but given my spec not sure if it would change your advice. Thanks!!
You can use the equations and approach from my other video on this topic (ua-cam.com/video/a1KPl-M-dpM/v-deo.html) to guide your design. You will certainly need to go beefier than what I did, my "deck floor" on the start end was only about 3.5 feet high.
I’ve build 1000 feet long zip line with 5/8 cable. Is diameter sufficient? Thank you !
Man, that is an expensive cable but it seems like a reasonable diameter for that length. Your anchor points are going to need to exert 3 or 4 tons of force, those are going to be expensive anchors also. Good luck, and I look forward to seeing the video!
@@BILLYSHED it’s on my channel already! But video in Russian language) I just wanna make sure the diameter is safe.
@@misty_mountain Awesome zip line! That was a lot of work. Do you plan to sell rides on your zip line someday?
@@BILLYSHED no, just for fun.
Hell ya I was thinking this exact same solution. Your the man Not sure I’ll get all the math perfect but it will be better than nothing
Thanks and good luck!
🤔🫨😵💫🥴
Just purchased 2 off treated 3x12 for the same
That is by far the best brilliant method I've seen to level an above ground pool, like the water level technique.
You flatter me!
Where did you get the foam? Thanks
Home Depot or Lowe’s, I forget
@@BILLYSHED i dont really know anything about foam. Is there a specific rating on the hardest foam available at these stores?
@@danikd9802 use the pink stuff. Dont overthink it.
This is my zipline with iron posts ua-cam.com/video/2UNMUE2kl80/v-deo.htmlsi=nNBM88AatwY9El5q
Thanks for sharing, and well done!
Do you feel that there is a tolerance level between the bottom of the built up feet and the floor itself that the liner can handle? If assume the liner is designed to be installed at the same level as the feet.. thanks
There is a reasonable amount of tolerance.
Was looking for a low cost simple solution and you sir nailed it gonna get some foam panels and start getting things prepped. 2 years later and your video still helping people!!
Thanks man! Yep - I'm using the same foam boards now for the FOURTH season
how about a video or ideas for a rectangle pool on the patio
The fundamental solution of using stacked foam is not particular to round pools. Rectangle is probably easier, tbh. I'm sure you can figure it out.
We only have a two inch slope over an eight foot distance. I'm wondering if it's worth leveling for our eight foot pool or just setting it up and seeing how it goes 😅
Personally, I'd fix it up front - but I concede that it's a judgment call. Let me know how it works out!
Awesome video. I've used foam board on my 16 ft diameter 52 inch deep pool and it works great in my yard on the topsoil, makes for a nice soft bottom. *Twss*😂 I'm especially intrigued on hearing how your foam board only compressed 1 to 2 mm at the legs. I've had soil compression over the last 3 years, also erosion under the edge at the low point. I'm looking at releving it at the end of this summer and have at least a 1 ft perimeter beyond the pool's edge to eliminate invasive Bermuda grass around the legs. It looks like the inch thick foam could withstand the 52-inch water depth, especially if I pre-compacted the perimeter. I appreciate the engineering in your approach. The only question is did you see any appreciable deflection around your circumference due to your wedges? Thanks and God bless
Not sure what you mean by "appreciable deflection around [my] circumference due to [the wedges]" ? But I am about to edit and publish another video so maybe that will answer your question...
Hi. You assumed at 1:40 that the rider is gonna drop 4ft over a 90ft run. Why did you assume 4ft? Is that from the sloap of your yard that is 4ft and bems at 8' tall?
I assumed four feet in order to roughly estimate the tension in the line. And, 4 feet is a decent estimate just considering how my zip line worked. If I assumed 3 or 5 feet, the rest of the math wouldn't change much. The slope of my yard over 90 feet was about 6 feet.
Where are you located? I need this made, but no tool to make it. Same exact pool too.
You really only need some basic tools, like a sharp knife, a tape measure and a straight edge. Might take you a little longer to make the bevels but it’s not too bad. I’m sure you can figure it out
do you need to consider the weight of the cable in the force applied to the end points? 100ft of decent cable is pretty heavy.
The short answer (specific to a 90-foot zipline with 3/16" diameter cable) is "Nah, not so much". The preload force needed to pull the sag to a reasonably small amount is significantly less than the load once a rider jumps on. If you have the preload pulled so tight that it significantly loads the endpoints, your rider is probably going to plow hard into the end of the ride. Consider that ziplines are designed around stiffness / deflection. Anyway, longer runs with heavier cables... yeah you will probably start to need worrying about the cable weight (or the preload force).
I had no doubt you were 100% an engineer lol all the same demeanor
Thanks 😘
Was a fun day, My wife @ I were there that day. Thank you Allegheny College, GO GATORS
Thanks for this video! Exactly what I'm going to do/try
Cool. For what it's worth, I am going on year four of re-using the foam and it has held up very well.
Great explanation! Did you look at using alternate materials such as steel or aluminum posts with or without guy wires?
Regarding alternative materials: Nope. 2 x 12's were readily available and cheap. But if you can find a source of metal poles, then you can still use my cantilevered-beam calculations, you would just need to change your modulus of elasticity (E) to either 70 GPa (aluminum) or 210 GPa (steel), and you would need to re-figure your cross-sectional moment of inertia (I) based on an annular cross section rather than a solid rectangle. Regarding guy wires: That's a great option if you are willing to deal with more anchor points and a larger footprint, including wires that are a trip hazard. Wifey nixed guy wires so I went cantilever.
@@BILLYSHED Not set in stone yet, looking at 6" square alum column, if not then wood. Got it, thanks
Nice video! Did you look at using a steel post(round or square) & either burying or bolting to concrete? Tks
As I watch your calculations (with gratitude and fascination, trying to relearn the math!) I realize that if the downward deflection is between 3 and 4 feet (37.5" to 48") our IBC tank anchored zipline system isn't going to be all that successful given that an IBC tank is only 3 feet tall and we would be putting the cable sling somewhere lower than that... Hmmm. A failure? Or can we increase the tension (since nobody will be riding on it but it will be used for transporting cacao pod baskets). Any ideas?
Sorry friend - no ideas. I am sure you will figure it out. "Necessity is the mother of invention" - someone famous
I'm am trying to model our proposed solution using Blender 3D physics simulations and animations -- great to see you using Sketchup!
Marvelous!!! On behalf of me and all our students trying to apply ziplines without trees to impoverished communities in the highlands of Columbia we thank you!
God bless you for sharing this and taking the time to answer everyone's questions so clearly and patiently. I'm exploring ways to help two campesino families in the highlands of Sopetran, Colmbia get their cacao pods up the slippery mountain safely where there are no trees big enough to anchor to (the cacao trees are small diameter) and where it is hard to dig or get materials up and poverty is rampant (this is part of our mission at Mercy University and at the Patel College of Global Sustainability). We are thinking of trying to use fertigation water filled IBC tanks (1 ton) as the anchors and are experimenting in Florida at the Rosebud Continuum Eco-Science Center, but as we are not an engineering college (more of an interdisciplinary policy college) we have a lot to figure out. Thanks so much for your experiments and experience in zip lines without trees and anchors!
Was going to use galvanized steel poles over wood posts , any thoughts?
Not enough info
4” galvanized steel pipe to prevent rust , cemented in ground , won’t deteriorate like pressure treated wood over time .
Drill a hole , run a eye bolt through the top of the pipe and attach the cable
Check out my other video where I perform the calculations. You can use that same approach to calculate for your proposal, just need to change the cross-section from a rectangular solid to a hollow pipe and obviously you’ll need to change the material stiffness from wood to steel. Steel has a stiffness of 210 GPA, by the way. But go for it, you should be able to calculate it using the exact same approach I showed you in my other video.
Thank you so much !
Hey buddy im not an engineer just a dad and Grandpa, did you use the same 2x12 on both ends ? I see you did say you went 4 ft in the ground that would make both ends exact size and in the ground correct, now my question is how high did you go at the start from the zipline and how low at the end ? im not an engineer but this is wat i need to do for my grandkids, thanks so much looks awesome
Yes, it was the same sized post on each end of the line. Each end had two laminated 2x12s. My yard naturally sloped about 6 feet from the start to the end of the line, so I did not need to construct a taller support post on the starting end.
Thanks for sharing good idea to sister two 2x12
Thank you for this video! Thanks for sharing your knowledge! Very helpful!
Thank you for this video! It is awesome that you use your engineering knowledge to make fun activities for your kids. And it is amazing that you took the time to share that knowledge with other people. It wouldn't have been possible for our family, or many other families, to make a zipline without your video. We are going to be making the zip line with 2x12x16s, that will cantilever 12 ft above the ground. According to the equation from the calculation video, a 300 lb individual, would cause the 12 beam to deflect 3 in. Or 2 in if I used a 3 ply beam. I don't know if that's an acceptable amount of deflection. It certainly is not acceptable for building code. I think that works only allow 0.8 inches. But is it a dangerous amount of deflection? Could the beam fail? I looked up the modulus of rupture for sy pine (12,800 PSI when dry). I don't believe the force from the zipline is anywhere close to that, even for a 300lb adult at the 12' cantilever (7,500 Newtons? Or 48 psi for the 2-2x12?). I don't understand the math well to be sure I am doing it right. I also don't know when the amount of deflection (1-3") should be concerning. Thanks again for your video!
Aaron - I think you'll be fine with laminating three 2 x 12s. Manufacturer's instructions conservatively spec using minimum 12" diameter trees as anchors. Triple laminated 2x12's are ~64% of the stiffness of a 12" diameter cylinder, so that initially seems concerning... but remember that live wood is ~50% less stiff than the dried lumber you are using. So Bob's your uncle and you're back to parity with the conservative manufacturer's guidance. Have fun and shoot / post a video - I'd love to see.
@@BILLYSHED Thank you! I will definitely post a video
Nice Safety sandals
How in the world does the foam withstand such a massive amount of weight from the water without seriously denting the foam? Makes no sense... Would using EPS foam instead of XPS work just aswell? The XPS foam feels more rigid than EPS, EPS feels more squishy to me.
"Makes no sense" to you... sorry dude but it's not magic. I can only imagine what else blows your mind. I'll make another video soon to demystify the pressures and forces. You're not the first person to be skeptical.
@@BILLYSHEDStill waiting for that video.
Ok, it will be pool season soon and I’ll make the video then.
@@BILLYSHEDAwesome! I look forward to it. I'll be checking back throughout pool season to find your video.
Hi, I have artifical grass on gradual slope 4 inches. I had my 14 ×42 intex pool up. The poles on cinder blocks. The the sides of pool were bulging quite a bit. I emptied the pool. I was thinking of stacking eps foam to level it or do blocks and then the foam. It is just me and my sister and a limited budget. We have two months of hot weather left. I really want to put the pool back up🎉thanks for your time
What did you end up doing?
Same issue yesterday, it's almost like I wrote this!
Thank you Ryan, you answered all doubts..Dan
Very cool process, thanks for sharing, something to keep in the back pocket for sure!
At first I was dubious, but your underwater footage sold me. Based on your experience, when installing an AGP on soil, I wonder if dishing out the central area, say 8-10" while leaving the perimeter level and flat would work, to make a center 'deep end', say for a 48" deep 18' pool? The liner appears to be flexible and 'stretchy' enough to compensate for the dish, and the perimeter being level would be the only concern since the legs would have a flat footing. The goal would be to let your 48" pool be actually 58" deep in the center...
I understand your intent. I think a 10” dish on an 18’ pool is reasonable. Go for it and shoot a video and let the rest of us see!
Did you try it? How did it work out?
How well is the foam standing up under the legs? Thats my one big worry@ !
I’m 6 weeks into the third season and the foam is fine. I should post a video to document my current setup and answer some other questions
@@BILLYSHED you are very helpful thank you soo much!
Hi there, I think this is ingeniously done, thank you for posting. We are planning putting our Intex pool up on an asphalted backyard area, the pool is 15 x 48 and has no poles in it, just a blow up rim at the top. We have a 5.75 “ slope. I don’t know if no poles would require any further consideration or extra concern in our instance using this method?
Sounds great, I think you will be fine with this method. Use a few layers of packing tape at the seams between pieces of foam. And, do your best to ensure the bottom of the pool is properly positioned before you start filling it. Post a video and notify me after you get it up!
@@BILLYSHED Thank you sooo much. Makes perfect sense. Will post you the outcome. I am a little nervous about it but will be diligent.
Don’t be too nervous- you will know soon enough if it needs better alignment and you can drain and refill. Go for it. Have fun and I’m looking forward to your video!
This is exactly what I'm trying to do; I want to put the pool on the far end of my driveway. Same size pool 15'x48"; inflatable rim. I watched this video last year and did measurements and my slope is NINE inches. I didn't get the pool set up last year (it was late in the season anyway), but hoping to do so this year. Over the winter, I have accumulated a bunch of interlocking foam mats (for gym floors) and may use them. I used them to (mostly) level my soft-sided spa.... but that was before I found this video! Now I have a method to measure accurately and hopefully I'll get it done! Good luck @deborahsimmons, and Thank you @billyshed for the video! I'm going to study it and make a plan!
You mentioned its 38 5/8 across on one side, 30 inches on the side of the first foam board. How about the last side?
At 5:11 in the video
@@MommiiNLea The angled sides were cut at a 15-degree angle, for a total wedge angle of 30 degrees. That’s because my circular pool has 12 poles and 12x30=360. If you have a different pool, you will have to figure out your own situation.
Don’t worry guys. It’s not rocket science 😵💫
I am going to write numbers because writing down in inches is too complicated. If only there was a system that divides by 10. Like a centimeter or so.... oh wait.
@BenvanBroekhuijsen Once again, proof that snarky /worthless comments always come from folks who have never contributed any videos of their own.
@@BILLYSHED Hmm I guess my comment was a bit snarkier then I wanted. I apologize for that. The video in general was very useful, I should have commented about that as well :D It was nothing personal, it was about the system that the US keeps using despite the fact that virtually every other country advanced.
You have redeemed yourself. All good. For what it’s worth, I have been using metric units in my professional calculations for 30+ years. Just hard to buy tools here in USA that aren’t setup for imperial!!
Key point to note - this is one of the smaller 12' x 30" pools. Plenty of weight to distribute but nothing compared to the larger 40"+ height pools that start at 15 feet. I wonder how a solution like this would hold up under an 18' x 52".
Robert, I am confident that this solution would also be fine for deeper pools. It's the water *depth* (not the diameter) that imparts stress to the foam and downward force on the legs. A 52" water depth wouldn't even double the stress on the foam. You might benefit from padding-out the leg supports to distribute the extra downward force over a little more foam, but the extra pressure on the interior portion of the foam that just has liner pressing on it... would absolutely be fine with a 52" head of water pressure.
@@BILLYSHEDWhat about a much larger pool though, say 24x12x52?
@@Superman-xr1oh I literally answered your question above. It's only the DEPTH of the water that puts any stress on the foam, not the diameter. The foam doesn't care if your pool is ten miles wide, just how deep it is.
So is there steps in the pool!??? Like from the foam?
Never mind I see what you did
Do you think cutting foam to bevel edge is required. I don't own a table saw. Also my pool is oval if that makes a difference.
Yes, I believe the bevel is pretty reasonable insurance against stressing the liner at the otherwise sharp(ish) edges of the steps. Also, by beveling the edges, the bottom of the liner doesn't have to stretch as far as steps would require. Think: "Shortest distance is a straight line". You will figure how to cut the foam. Its not difficult.
So you don't suggest placing any foam in the middle of pool or completely covering foam underneath the pool? Another video they placed foam underneath the entire pool. It seemed you focused mainly on the legs. So as long as the legs & outer perimeter is leveled that will level the water in the pool?
Q1: So you don't suggest placing any foam in the middle of pool or completely covering foam underneath the pool? A1: That’s not necessary for reasonably minor slopes like mine. There’s enough slack in the liner to conform to the gentle steps resulting from my approach. The benefit is a little bit of a deep-spot near your low-point. Yay. Q2: So as long as the legs & outer perimeter is leveled that will level the water in the pool? A2: The outer perimeter is the important part to get level, yes.
@@BILLYSHED Thank you. Your video is Awesome & especially Thank you for taking your time to answer additional questions. Much appreciated
Yes, I strongly believe the bevel is important. And…oval. Interesting. Good luck. Post a video after you complete your install.
I love using the water level for things like this! I always add a little bit of food coloring to the water. It makes reading the measurements a lot easier. Great video!
Slayer, food coloring - good idea. And thanks.
This is so me. Dare to be different yes!!!❤
Thanks!
This is great, thanks for sharing. When buying the foam imsulation boards how many do you suggest purchasing?
You will have to calculate that depending on your pool diameter and how much slope you need to compensate for.
Personally, I would do a CAD drawing, but you could sketch it out on paper.
This is the exact solution I was looking for. Also, the level of nerding in this video is outstanding. Thanks for the upload!
Thanks, man! In another week or two I will be putting it all back in place for a third year of service after storing the foam outdoors under my deck stairs since last Sept. Everything is still in good shape.