11/6/2022 0 Comments Homemade crane lift![]() ![]() Just after getting it up I decided I needed a cable festoon for the electric wires so I found a deal on eBay plastic wheels and made some trolleys up out of 3mm (1/8) plate. I had an old beam trolley that I got the wheels off. The beam trolley is made up to suit the electric winch my wife bought me for a Christmas present. So I lifted it 150mm higher and had to redrill more holes and plug up the old ones. I was lucky I did that as when I first put it up it needed to go higher than I thought. You will see in the photo that I made up some temporary angle brackets with thread bar to do the final adjustments to the post when the crane was up, before welding the bottom. ![]() They have a hex head but no thread and are hammered 75mm (3)into the tight fitting hole in the concrete. I made the dummy bolts at the bottom because it has to be removed to another location latter. The top plates are 150 x 150x 10mm (6圆x3/8) with the same 20mm bolts and the bottom plate is 300x175x20mm (1x7x3/4) with 5x 16mm (5/8) pins into the concrete. A couple of small countersunk bolts hold them in place until the post goes up and the bolts go in. I welded the nuts to a 300mm x 90 x 6mm ((1x 3 1/2x1/4) plates top and bottom and then slid the plates inside the post while it was laying on the ground. They bolt on to the post with 4 x 20mm (3/4) HT bolts top and bottom. I made the brackets up to hold the bearing retainers out of 10mm (3/8") plate and they bolt onto the 100x100mm (4"x4") thick wall post. I made plates up to go around them and welded them to the crane as extra insurance. There is a 40mm (13/4) square trailer axle machined at both ends to suit the bearings welded to the back of the crane. The bearings retainers are from the rear diff of a Nissan 720 4x4 pickup with a standard 30mm inner bearing in the top retainer and the bottom one with the original taper bearing from the axle. The beam is 150mm x 75 (6"x3") and is 2.3 mtrs (7.5ft) long made up of 2 pieces welded together. ![]() It was made of scrap that I picked up in a dumpster and the main post a mate gave to me. About 12 months ago I had the son in-law help lift the 250mm (10) rotary and he nearly dropped it, so I decided to build a crane to do the lifting as I still wanted to lift things on my own but safely.Īfter some research on the internet (not much out there) I built this jib crane last year but only put it up at Christmas. The problem is not age but a broken disc in my neck and after a MI scan and surgery (the operation was unsuccessful) the doctors told me I had an 80 year old spine at the ripe old age of 38 that was 4 years ago. I have been having a hard time lifting things on and off the mill and the lathe for some time and usually had to get a hand off someone (usually my son) to give me a lift. I posted it else where as well but thought the members here be interested. Hi, I hope this is the right section to put this in. ![]()
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