/r/Rigging

Photograph via snooOG

Welcome to r/rigging, where enthusiasts unite to tackle the ropes and pulleys of life! Share your rigging triumphs, tips, and tales in this tight-knit community. Whether you're a seasoned pro or just getting started, join us for a knot-so-average experience in the world of rigging!

Rigging, whether it be tree removal or moving giant machines, this is a place where we can talk shop. Gear, jobs, stories, all are welcome so long as it involves, well, rigging.

/r/Rigging

30,158 Subscribers

8

Two for one tower crane sections. Liebherr luffer boom

7 Comments
2024/09/20
02:46 UTC

48

At least the rigging holding the shell on held.

11 Comments
2024/09/18
20:48 UTC

0

Arena rigging, building your own anchors?

Working in arena rigging, sometimes the beams don't have any safety lines installed, which then it's a safety concern regarding pulling points. I'm looking to invest into some slings and steel locking carabiners (Rated for falls) to build my own anchors in situations where I may need one. For those in my industry could you guys kindly recommend me any slings I should look for, regarding length, width, and possibly material? Thank you!

17 Comments
2024/09/18
19:59 UTC

2

Small indoor lifting with 2 cranes

Posting it because these type of crane aren’t that common in North America, and might be of some uses.

0 Comments
2024/09/18
15:01 UTC

2

Hanging beam clamp VS lifting beam clamp.

My boss thinks they are the same. Does any one have something official that I can print out?

Thanks

11 Comments
2024/09/17
14:07 UTC

10

Arena riggers: what’s your process for cutting/breaking in hand lines?

Ordered a spool and I’d like to optimize the process of cutting and breaking-in a bunch of hand lines of different lengths.

I’m going to borrow a hot-knife and tape before cutting then tape again to color-code for length, aiming for like 4 inches of stiff tip for ease of poking (pause).

Besides breaking in with load-outs, I plan to thread through a staircase and scrape it through a few times.

A dude I worked with recently runs his through a washing machine cycle once. I had never heard of that method and I’d be worried about compromising the rope with residual bleach or something, I’ll probably stick to friction.

Just curious of different approaches/tricks. Thanks.

Edit: 5/8” polypro

9 Comments
2024/09/16
18:30 UTC

3

Harrington hoist

Looking for someone who works in Harrington hoist lever hoists I’m having issues with my lb008 and lb015. I don’t really want to send them off.

7 Comments
2024/09/15
17:33 UTC

0

I'm confused

So, is this considered to be a double pulley or single pulley? There's 2 pulleys, so, does that mean that it's a double pulley? Because I thought that it also needs 2 cables connected to be considered a double pulley, so I don't understand. Thanks

18 Comments
2024/09/15
00:50 UTC

0

Hanging a 36 inch .5 pound/8 ounce beach ball from office ceiling

We're having a party & I want to hang a 36 inch .5 pound/8 ounce beach ball from office ceiling in such a way that people could bat it around safely, kind of like tether ball. I assume I need a d-ring of some sort?

Any advice on how to rig it up to an office ceiling similar to this one?

https://preview.redd.it/r62f0tln2uod1.png?width=956&format=png&auto=webp&s=9303b9459ca87b769aea70e925966661f5c81fc0

15 Comments
2024/09/14
20:20 UTC

2

Attaching speaker cabinet to stand with no pole hole

Hi all,

I have a set of 12inch PA speakers that don’t have a hole for a standard speaker stand. Instead they have many M10 rigging inserts on the cabinet. 99% of the time I’m not flying these speakers so I currently just settle with strapping them to a table however this is not always possible. A set of speaker stands has popped up on my local Facebook marketplace and I am inclined to purchase them if anyone knows of a solid way to securely rig them to a stand. As the cabinets have 2 rigging inserts vertically placed along the back of the cabinet, my idea was to secure 2 truss clamps to those rigging inserts (example photo attached) using the M10 bolts, then clamp those to the speaker stand. Now other than the fact that the load is somewhat eccentric (each speaker cab is about 30kgs) am I missing anything? Or alternatively those who have a better idea please let me know. Many thanks for your respective time in answering

8 Comments
2024/09/14
07:49 UTC

31

Rope Gripper tool?

I'm after a tool that can easy clamp onto a section of rope once tension is placed on the lifting eye of the tool. I needs to be able to self adjust to different thicknesses of rope.

I came across this device which uses a camming action. It seems perfect in principle, but seems designed for wire cable only - I imagine it would severely damage rope.

Are there any other suggestions anyone could make?

The situation is having to haul rope out of the water using a small boat-mounted deck-crane that only has a hook at the end. Ideally we'd be able to use this tool to clamp on and winch up from the water to a height of around 2 metres, then use another tool to clamp onto the rope near the waterline, let down the winch so the waterline clamp can take the load, then lower the hook and tool back down the the waterline to reset it and haul the next length up.

Thank you

49 Comments
2024/09/13
02:37 UTC

143

To the feller who asked how to trip the tank. Just did 6 of these yesterday

29 Comments
2024/09/13
00:05 UTC

22

Lifting a 35k lb cylinder

It is a 40 Ton Crane. Do I have to worry about magnus effect. Will crane be sufficient if cylinder pivots? What questions should I ask about on lifting plan?

30 Comments
2024/09/12
20:31 UTC

5

Cable clamp strength (update)

5 Comments
2024/09/12
16:08 UTC

2

Rope recommendations for arena/stadium rigging

When considering investing into new rope, I'm looking to upgrade from a 5/8ths single braid polypropylene rope to a thicker and better quality rope. So far what I've been looking at is 3/4 double braid nylon. Is there riggers who have experience with 3/4 double braid? And are there any supply stores/websites you guys would recommend? I'm also looking to maybe order a custom color rope, do any of you know of suppliers that can do a custom job?

8 Comments
2024/09/12
09:29 UTC

3

Wire rope sling D/d efficiency

What is a good rule of thumb for a D/d ratio (I.E. Minimum bending radius to for a sling in a basket hitch) without kinking it? Looking at IWRC wire rope slings.

I have seen even if not really kinked the sling stay bent in a U shape after loading.

I've never seen anyone give a go-by or rule of thumb for this. For some reason 5 or 8:1 ratio is sticking in my mind but I have no idea where I'm getting that. Thanks

9 Comments
2024/09/11
21:20 UTC

1

Loading both sides of a turnback with fist grips.

I'm looking for documentation from Crosby or other that either approves or disapproves this practice.

Essentially creating a turnback through a thimble with fist grips then applying a load on both strands coming out of the last fist grip. This assumes the overall load on both strands is within MBS. Does anyone have any MFG info to point me towards?

https://preview.redd.it/o9fgrspt47od1.png?width=1121&format=png&auto=webp&s=20f6925f1cb0b38cc9e0c30ba6285890b13a76a0

5 Comments
2024/09/11
15:11 UTC

0

Attach magnetic object to C Stand boom arm?

I have a little web cam with magnetic base that I wanted to attach to a C Stand boom arm... however I noticed the metal arm does not attract to magnets! (I also tested grip heads, but apparently those aren't ferromagnetic either.)

I know I could rig something to clamp the webcam on there, BUT I really like the idea of easy on and off with a magnet. Is there some known solution to attach a metal surface (ferromagnetic) to the metal boom arm? And then my magnetic device could be snapped on and off of that surface easily?

Attracts just fine to the fridge

Doesn't attract to the arm, the grip head, or any piece of C Stand...

8 Comments
2024/09/10
12:46 UTC

3

Is there a place I could take practice rigging test?

I just got hired on as a fabricator rigger and I’m studying all the material they gave me but I need a way to verify that I am on the right track. Is there a practice test out there maybe three levels, basic intermediate, and advance that I could take? Also maybe some YouTube recommendations for the physical stuff.

6 Comments
2024/09/06
12:21 UTC

10

Amateur rigging a motorcycle

What’s the optimal way to hoist a 100kg motorcycle to your garage ceiling using a hoist? This is the idea so far..a hoist mounted to a pull up bar on the ceiling which attaches to a spreader bar. This then fastens to nylon straps on front and rear of motorcycle.

19 Comments
2024/09/05
06:10 UTC

45

Would anyone else be kept up at night being in charge of rigging this screen outside

14 Comments
2024/08/29
10:14 UTC

128

Why do companies continue to make these units a pain in the ass to hoist

46 Comments
2024/08/27
17:53 UTC

2

Impact wrench Reccomendations

Hello everyone

I work as a stagehand and sometimes I am requested to set up and tear down trusses and I wanted to know what would be the best in your opinion of course impact wrench for setting up and tearing down trusses

Eventually, I’m gonna get trained in doing rigging through my job and I wanna be prepared to have everything in advance and also to be able to set up things and take down them quickly

I also don’t wanna buy the wrong one and have someone get hurt or break anything

Please let me know what you use or recommend. Thank you.

19 Comments
2024/08/27
14:45 UTC

21

This elegant double flagpole arrangement on 5th Ave in New York is Not. Going. Anywhere.

3 Comments
2024/08/27
14:31 UTC

7

Bass Canyon 2024

wind sto

5 Comments
2024/08/27
13:53 UTC

Back To Top