Gantry Geometry: Regardless of the material you choose to build the gantry beams from, the geometry is an important factor in the strength of the construction. A fixed position static system for lifting is probably a better way to go. Find a engine hoists on Gumtree in Scotland, the #1 site for classifieds ads in the UK. Understand the weakest part of the device and NEVER approach that limit. When designing your system, don't go it alone...fall back on makers who came before you (including the folks that build the first Shadoof!) Glad you like the bridge build. I measured my pin diameters and left just under 1/16" of clearance when I set my pin hole diameters. 20. It's a Shadoof! As a fellow Instructables Maker speaking to other Instructables Makers, I would encourage you to make a similar list which identifies your honest requirements for whatever tools you want to make (cranes or otherwise). Now, post completion, I'm far more confident in my ability to do that, and the education I got in this exercise will help me on other projects. Bought not Built: Honestly, if I had to advise anyone or do this over again, I'd just suggest you buy a commercially produced overhead lifting system. My main hope with this Instructable is it encourages at least one person to stretch past their comfort zone when it comes to being a Maker, and that you try something new that feels just beyond your current capability. Designing any lifting system is inherently dangerous. While it's fun to try to make something incredible and cool, "functional enough" is usually better than "never finished". Adding Caster Wheels: I wanted the crane to be able to 'roll around'. Mocks ups are low cost ways to evaluate and 'see' what you've designed...the idea is that mock ups can be created easier and cheaper than the real thing. If you are cutting/drilling your trolley bodies using other methods, you may not need to put the final drawing in CAD. Only during final assembly did I realize that the only way to assemble it was on a ladder...holding two pretty heavy parts of the trolley body...trying to simultaneously align four pins in their holes...with a bunch of spacer washers loosely hanging on. Love it.I just want to add a bit to your well emphasized safety concerns:- the load rating of the stringers is probably based on an evenly spaced load, not a concentrated load at the middle of the beam, so reduce the number by a lot. While those things are "cool", this system covers probably 90% of the needs I have. Flexible Use: Wanting to make the trolley system in such a way that it could be adjusted in width and wheel position, so I could use each trolley independently on other beam widths. This helped me think about the value of doing things like placing 4 pins to "cage in" the trolley so it can't leave the beam, and to prevent the upper wheels from 'spreading' under load and falling. Prepping the Cross Beam: I happened to have a 4" I-beam laying around so I shortened it in the band saw, and drilled two holes in each end to match the mounting holes I had cut in the trolley top plates. SAFETY WARNING: In an abundance of caution, I'd reiterate and point back to the safety warning I put in step 1. Point Loads, Static Loads, Engineering Degrees and such: I learned that no amount of YouTube or Googling is a substitute for formal education in understanding point loads...and further point loads that move and their effect on structures. Access to Tools: The fact that I had easy access to a laser cutter, a CAD Brake, CAD software, a lathe, and some excellent fabrication mentors really gave me flexible design options. Metal Recyclers/Junkyards: Some junkyards sort materials and will allow you to 'come browse' for things you need. I placed one lower in the rack to act as a brace, to reduce tendency of frame to 'spread' under load. It's good to be creative and explore alternatives places to get materials. Being able to email and ask questions, and buy new materials there is easier than you might think and you should not be intimidated about calling your local steel plant and asking for materials...they are often nice people and more than willing to help if you're polite and don't waste their time. on Step 12. ; and, it’s great for lots of other lifting chores. In my case, I was trying to keep costs down for my gantry crane build. Share it with us! 3 months ago. Mar 2, 2015 - Hey guys and gals, Just thought I would share where I'm at on my gantry crane build. In my case (and this may vary if you choose to attempt this), I used the mock up to assess and finalize measurements for several aspects of the trolley bodies. Thanks again for checking it out! @seamster - you had me at 'sewing machine tractor' ! 2 LITERATURE REVIEW LK Goodwin CO. is a material handling equipment company that sells many types of hoist’s and cranes for certain applications. I strongly urge you to consider purchase of a commercially available unit unless you have adequate expertise to ensure safety. WHO KNEW? you guys have a great little sheep herd! This system was designed years ago, and many have been built (in various sizes) over the years. You can see in the photo that the pair together of cross members is rated to max load of 4950lbs when the unit shipped new. The mock up helped me realize this oversight on my part. I found I'd left two loose somewhere in the assembly process, and I'm very glad I checked. Once I had played with the plywood mock up, I was able to see my trolley body idea in real life and come to conclusions on measurements, wheel placement, etc. Your unit appears to have only one stringer highly mounted on the back side. 2 Ton Mobile Gantry Crane Let’s face it. I could see how in a facility using forklifts, a risk of uplift of the beam could be a problem and these retainers might help prevent that. While I did make a pair using my mock up dimensions, I ultimately ended up making another set later as my plywood mock up flexed and to make more precisely fitting top plates, I measured the steel trolley bodies once assembled, and then cut/broke new ones which fit with closer tolerances. Cost: A decent overhead trolley system can be purchased new for under $1000 in most cases (at least in the US). I used TurboCAD to create a file for use on a laser cutter. Industrial Office Store Closing Auction: A local big box office supply store was going out of business. 2020-7-21 - Explore overhead crane manufacturer's board "Top Quality China Gantry Crane" on Pinterest. If not that, I'd really discourage construction of a system that 'moves'. Brilliant build. I did a number of tests lifting small items of about 100lbs and then using a ladder to climb up and inspect the entire rig. Lay the I-beam upside down on blocks on a level surface and slide on the gantry trolley. How we test gear. Pin Hole Diameters: As indicated, I did use a lathe to remove some shoulder of my threaded pins which I scavenged from the used 4-wheel trolley bodies I bought on Ebay. Did you make this project? This was probably the most annoying part of using the pallet rack, and honestly enough reason that I would NOT recommend using a rack that has a beam with that offset. However you get your project done is up to you, but if you have a waterjet or laser nearby don't be intimidated...it's way easier to do than you think and if the shop has nice fella's like the place I use, you'll learn a lot on the way to finishing your project. The frame works delightfully well for that, as well as loading stuff out of pickup beds. and you "just need them to run over and help you lift something..it won't take 10 minutes, but they end up there for 3 hours? If you select the DIY option from Chart Garages, we aim to ensure the assembly of your new building is as straight forward as possible. Use of that shelving system I certain saved some money on my primary structure, but ended up still buying a number of new parts/material as well. he is too friendly and stronger than he thinks , Fantastic build, and loads of great tips. You can likely find something similar in our area if you live near a metropolitan area. Online Industrial Suppliers: Items such as my chain fall came from an online industrial supplier. I found I could buy USED beam trolley assemblies on Ebay so cheaply that the shipping was almost more than the purchase price...so I did that and just stole the wheels out of the used trolley chassis. Notes on Making the Top Plates: I need to note here that trolley top plates were made in a two step process of cutting flat plate and the holes on the laser, then secondarily bending the ends in a brake. This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. Thanks: I appreciate that anyone even read/looked at this Instructable. Sourced Materials: The dimensions and unique structure dictated by the used pallet shelving superstructure defined my design in many ways. I had to be very careful here that the drilled I cut in the beam were spaced exactly the same distance from center to center on the trolley bodies. I could have possibly made some on a lathe, but that seemed tricky. Saved from practicalmachinist.com. These retainers are simply little steel flat springs you push into place. The only thing you will need to do after that is to put the pieces together as instructed. If you've got the space and need to move heavy objects around your workshop, then a gantry crane could be your solution. So before you begin, it's a good idea to go through your materials list and at least put some ballpark prices beside each item. Available in a variety of sizes and styles to suit every space and specification, we have a variety of sizes and styles to suit every space and specification. You may be able to find more information about this and similar content at piano.io, Tool Gift Guide: 36 Great Presents for DIYers, 25 Last-Minute Gifts and Stocking Stuffers. Point is, if you're trying to do something, often some other human also had that same idea. I hope this is the correct area to post this (Mods, please move i. Obv that's prob a distributed static load, across several tiers of shelves (because as noted earlier, the max load per horizontal beam pair was 4950lbs when the units shipped new from the factory)...but wow...28,000lbs? Loads which are moving either on trolleys (like I built here) or on casters (like on the feet of the rig here) totally change the situation vs say a system that is permanently installed in a fixed position. It is so easy to get badly hurt.The only ways I can think of to determine the strength of this machine are:- to hire an engineer to do the math figure out a number, which could be wrong. For instance I would have loved a system that lifted 4000lbs safely...or a system that had an electric trolley travel system....or a system that once out of my garage I could raise telescopically to get another 5' of lift...but if I'd done even just one of those, I would probably have never finished the project. It is currently the oldest two-tiered stand at Elland Road, having been built in 1957 after the previous stand burnt down, ironically forcing Charles' sale as the club needed the funds to pay for a new stand. Nice Project. Cranes are serious devices, and even without any weight on the system, one even toppling over, or a component falling could definitely kill you or someone else. Gain some head room by fabricating a small beam clamp and losing the chain. Saved from homemadetools.net. At the risk of harsh criticism within the New York and Milan art communities, I'm sharing a couple of my early sketches...while very far from perfect, just sitting around doodling these rough sketches got my brain thinking about the problems I might run into with various designs...don't be afraid to tinker with a pencil. Even just looking at the Shadoof image might make you think about using counterweights to offset lifting effort, etc...so make sure you look around at previous work others have done in making tools like what you're looking to build. About: I believe places like the Instructables community are important for encouraging others. Local Farm Stores: Don't forget...some of the craftiest people anywhere are farmers. Thinking About Assembling the Tool: In all my drawing and making on this project, I had never even stopped to think about "how will I assemble this?". I have to say here, I made about 8 steel coasters for my garage in doing this. The laser cutter certainly made it much more realistic for me to make the trolley bodies more complex. It's a Federally funded facility, but I still pay for rental time for use of the laser table. ...and don't be shy if you "can't draw"....you're drawings don't have to be Picasso sketches...you just need to make enough lines on the paper so you can think about what each various design does in terms of solving your problem (in my case, lifting stuff). Jul 17, 2017 - REID Lifting's PORTA-GANTRY RAPIDE can carry up to 500kg and is fully certified to European & North American standards for both goods and man-ride use. Now, we just released the Perfect Size Crane for your Garage. Thank again for taking the time to make the videos. Ideal for both storage or your next DIY project, a workshop or garage can be utilised in a range of different ways. Using a laser cutter makes you feel like you could honestly make anything...if you're having a bad day, I highly recommend a dose of laser cutting...it makes all your problems go away! 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