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Thread: Jib crane

  1. #1
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    Jib crane

    Name:  IMG_20211117_174321594.jpg
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Size:  126.5 KB This is an existing column that holds up a 12" S beam that runs across the shop, approximately 24-25' beam. Column is 4" square 1/4" wall. Plan is to attach a jib crane to this so I can cover a larger area with the hoist. Jib crane will be 9' long, hoist is 880 lb capacity. I plan to brace the column to the lower block wall to prevent leaning when it's not 90 degrees to the wall.
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    Miller xmt304, Miller S22 p12, Miier Maxstar SD, Miller 252 w 30A, Miller super32p12, Lincoln Ranger 9, Thermal Arc 181I with spoolgun, Hypertherm 10000 ,Smith torches. Esab 161lts miniarc.

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  3. #2
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    Re: Jib crane

    I like this
    Dave J.

    Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~

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    Re: Jib crane

    Beam is 6" W beam, 12 lbs ft. Had a few welded on pieces of 3" angle that had to be removed but the price was right,(free). The jib crane will be a tie rod design using 3/4" rod for the tie rod.
    Miller xmt304, Miller S22 p12, Miier Maxstar SD, Miller 252 w 30A, Miller super32p12, Lincoln Ranger 9, Thermal Arc 181I with spoolgun, Hypertherm 10000 ,Smith torches. Esab 161lts miniarc.

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    Re: Jib crane

    Name:  IMG_20211117_175749986.jpg
Views: 1086
Size:  108.9 KBThis is the part of the hinge assembly that will be welded to the beam. 3.5" o.d., 2.5" i.d. mechanical tube. I tried up the outside as best I could without removing too much material. There is a portion that didn't clean up since it was a drop that had some machining done previously. I had to take about 40 thousandths out of each end 4" deep for bushings.
    Miller xmt304, Miller S22 p12, Miier Maxstar SD, Miller 252 w 30A, Miller super32p12, Lincoln Ranger 9, Thermal Arc 181I with spoolgun, Hypertherm 10000 ,Smith torches. Esab 161lts miniarc.

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  8. #5
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    Re: Jib crane

    I have some 3" nycast 6pa which is a really dense cast nylon material. That will be used for the bushings , bored to fit 1.25" pin. The top mount for the tie rod will be a piece of 1/2" X3" flat added to the upper part of the hinge portion welded to the beam. The rod will attach to that with a clevis. The lower portion will weld directly to the beam about 3/4-7/8 of the length of the beam. I will make a right hand- left hand type threaded sleeve to adjust for level.
    Miller xmt304, Miller S22 p12, Miier Maxstar SD, Miller 252 w 30A, Miller super32p12, Lincoln Ranger 9, Thermal Arc 181I with spoolgun, Hypertherm 10000 ,Smith torches. Esab 161lts miniarc.

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  10. #6
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    Re: Jib crane

    Name:  IMG_20211107_173153689.jpg
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Size:  91.7 KB The setup on the old South Bend 13" lathe for boring. The steady rest was almost to it's maximum diameter.
    Miller xmt304, Miller S22 p12, Miier Maxstar SD, Miller 252 w 30A, Miller super32p12, Lincoln Ranger 9, Thermal Arc 181I with spoolgun, Hypertherm 10000 ,Smith torches. Esab 161lts miniarc.

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  12. #7
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    Re: Jib crane

    Great lathe.
    I do not know why South Bend made small steady rest for all there lathes.
    In past I made out steel a larger steady rest for my lathes.

    Dave

    Quote Originally Posted by M J D View Post
    Name:  IMG_20211107_173153689.jpg
Views: 1111
Size:  91.7 KB The setup on the old South Bend 13" lathe for boring. The steady rest was almost to it's maximum diameter.

  13. #8
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    Re: Jib crane

    Is this thread open for unsolicited advice?

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    Re: Jib crane

    Quote Originally Posted by 12V71 View Post
    Is this thread open for unsolicited advice?
    . If I still drank regularly I could go on a good Monday night rant.🤣

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  17. #10
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    Re: Jib crane

    Quote Originally Posted by M J D View Post
    . If I still drank regularly I could go on a good Monday night rant.��
    You must have started early... it's Wed.
    The harder you fall, the higher you bounce...

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  19. #11
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    Re: Jib crane

    Quote Originally Posted by whtbaron View Post
    You must have started early... it's Wed.
    Maybe daylight savings time factored in.

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  21. #12
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    Re: Jib crane

    Quote Originally Posted by M J D View Post
    . If I still drank regularly I could go on a good Monday night rant.🤣
    Name:  rhino74.jpg
Views: 1046
Size:  129.3 KB Those days are long gone bubba Rants these days are purely inspired by distaste

  22. #13
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    Re: Jib crane

    Name:  IMG_20211118_175810915.jpg
Views: 990
Size:  161.9 KBNot a whole lot of progress after work this evening. Name:  IMG_20211118_175810915.jpg
Views: 990
Size:  161.9 KB cut out and drilled the stationary parts of the hinge. 3/4"x 4"x 5" long. 1.25" hole for the pin.3/8" pilot hole then straight to 1.25" drill. When I moved the dual head Clausing out of the way to get at the column the cord for the low speed head wouldn't reach the outlet. I had to use the low speed head which only goes down to about 275 rpm. The low speed head goes down to about 140 rpm which would have been easier on the 1.25" drill. Despite that having a 1.5 hp 3 phase motor really puts out the torque. I need to mount the big drill press vise to a larger plate to make holding it down to the T slot table a little easier. The somewhat janky setup worked fine for this tho.
    Miller xmt304, Miller S22 p12, Miier Maxstar SD, Miller 252 w 30A, Miller super32p12, Lincoln Ranger 9, Thermal Arc 181I with spoolgun, Hypertherm 10000 ,Smith torches. Esab 161lts miniarc.

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  24. #14
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    Re: Jib crane

    Name:  IMG_20211118_180852601.jpg
Views: 982
Size:  152.3 KB Oops double post of the same picture. Finished pieces. Unfortunately I didn't have a large enough countersink to chamfer the holes so a 1-7/16" drill did the job.
    Miller xmt304, Miller S22 p12, Miier Maxstar SD, Miller 252 w 30A, Miller super32p12, Lincoln Ranger 9, Thermal Arc 181I with spoolgun, Hypertherm 10000 ,Smith torches. Esab 161lts miniarc.

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  26. #15
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    Re: Jib crane

    looks like fun, I think you will be surprised at how much deflection your going to get in that I beam, but jib booms are back savers for sure, you will wonder how you got along without it, watch that 4" tube when you swing away from the wall support until your sure what's going to happen.
    Do not argue with an idiot. He will drag you down to his level and beat you with experience.

  27. #16
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    Re: Jib crane

    Quote Originally Posted by idacal View Post
    looks like fun, I think you will be surprised at how much deflection your going to get in that I beam, but jib booms are back savers for sure, you will wonder how you got along without it, watch that 4" tube when you swing away from the wall support until your sure what's going to happen.
    Column is one end that supports a 12" s beam that spans the shop. I don't expect any deflection in that direction but I plan on bracing the column to prevent flex in the 0-75 degree axis and the 105- 180 degree axis. I don't think I'll get much deflection in the beam since it's a tie rod design, only 9' long and under 1000 pounds of lift.

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  29. #17
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    Re: Jib crane

    I missed the tie rod in the build, they sure are handy to have.
    Do not argue with an idiot. He will drag you down to his level and beat you with experience.

  30. #18
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    Re: Jib crane

    Quote Originally Posted by idacal View Post
    I missed the tie rod in the build, they sure are handy to have.
    I've used some in the past without a tie rod and the beam can be kind of springy. What amazed me is the size of the column and the base required for some of the 360 degree rotation ones. I installed a 2 ton 20 reach jib crane and I believe 12 yards or so of concrete went into the base.

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  32. #19
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    Re: Jib crane

    Looking good, I've built 2 cantilever jib cranes, one in my old shop, and a bigger better full radio controlled version in this shop.
    http://www.metalworkingfun.com/showthread.php?tid=4291

    If that link doesn't work let me know, as it's on many forums and FB pages as well as a US based crane Tech page

    Sent from my 5007U using Tapatalk

  33. #20
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    Re: Jib crane

    Quote Originally Posted by david.junge.77 View Post
    Looking good, I've built 2 cantilever jib cranes, one in my old shop, and a bigger better full radio controlled version in this shop.
    http://www.metalworkingfun.com/showthread.php?tid=4291

    If that link doesn't work let me know, as it's on many forums and FB pages as well as a US based crane Tech page

    Sent from my 5007U using Tapatalk
    I wasn't able to enlarge the pictures, but from what I could tell it looks good. I will be building my own trolley once my bearings show up to also reduce headroom .

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  35. #21
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    Re: Jib crane

    Sorry this may help

    https://www.facebook.com/groups/1737...5469164855096/

    I have up and down limit switches, along with east west and north and south.

    The unit to control it was only $90 Australian, about $60 us from AliExpress posted

    Sent from my 5007U using Tapatalk

  36. #22
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    Re: Jib crane

    No go... you have to join the Facebook group to see the pics and it says not to bother unless you live down under.
    The harder you fall, the higher you bounce...

    250 amp Miller DialArc AC/DC Stick
    F-225 amp Forney AC Stick
    230 amp Sears AC Stick
    Lincoln 180C MIG
    Victor Medalist 350 O/A
    Cut 50 Plasma
    Les

  37. #23
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    Re: Jib crane

    Having issues getting pictures to post. Nothing real exciting, made the nylon bushings this evening which is the first I've been able to get back on this thing. Made 4" long bushings. About 3 thousandths press fit into the hinge with 4-5 thousandths clearance for the 1.25" pin.

  38. #24
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    Re: Jib crane

    Name:  IMG_20211126_212345076.jpg
Views: 633
Size:  92.6 KB The nylon I used is some really hard , durable stuff but a real pain to machine. Real stringy stuff, kept wanting to wrap up. I found feeding left to right kept the strings at bay. Boring the inside worked really well tho.
    Miller xmt304, Miller S22 p12, Miier Maxstar SD, Miller 252 w 30A, Miller super32p12, Lincoln Ranger 9, Thermal Arc 181I with spoolgun, Hypertherm 10000 ,Smith torches. Esab 161lts miniarc.

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  40. #25
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    Re: Jib crane

    Sorry the links didn't work for you.
    Here is a picture, I have plenty more.
    3.2m reach from the pivot point

    Sent from my 5007U using Tapatalk

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