Winch Bumper: Roll Recovery
#61
#64
#65
Doing it myself. I'm getting some good quality paint and shooting it at my buddies indoor shop. The body is in such nice shape its literally a sand and paint. I wanna try to do it for $500 so I wont feel bad when I do wreck it.
#66
I don't know much about real offroading, and even less about physics.
Here's my worthless 2 cents:
Thomas Edison probably ignored the same kind of people 73ford is ignoring.
I'd love to see this in a demonstration model. It's an interesting idea.
I'm a little bit worried by the outrigger bar structure. The anchor plates might actually tear. They don't look heavy enough. I also think that extension bar will twist and bend because of the pulley anchor point. The pulley point needs to be in direct line with the bar to prevent a catastrophic twist.
Have you considered running the winch line through the bar instead of outside it? I don't know how you'd get the hook through the center but that would at least prevent twisting.
Here's my worthless 2 cents:
Thomas Edison probably ignored the same kind of people 73ford is ignoring.
I'd love to see this in a demonstration model. It's an interesting idea.
I'm a little bit worried by the outrigger bar structure. The anchor plates might actually tear. They don't look heavy enough. I also think that extension bar will twist and bend because of the pulley anchor point. The pulley point needs to be in direct line with the bar to prevent a catastrophic twist.
Have you considered running the winch line through the bar instead of outside it? I don't know how you'd get the hook through the center but that would at least prevent twisting.
#68
The material is 2x3 1/4 wall HSS tube. As you can see the front one is setup on edge so the pulling force is on the 3" side. This gives it really strong strength. I had to mount it oppossite on the rear one though so I could fit it between the bolt holes and get enough weld on it. It still should be fine though. As you can see from earlier I tested it by lifting my 1200-1500lb ish welder to see what happens. There was no bend in the bar at all! It was able to pick it off the ground which is actually acting more like 3000-4000 lbs say with the extension leverage on it. So I know it is strong and can handle the weight. I figure it will take 2/3 of the wieght of truck to roll truck back on all 4's with the truck weighing 6000lbs and with now resistance from say stuck in mud suction or branches it will require 4000 lbs of pulling force to turn it over meaning each corner will have to be able to support at least 2000lbs which it has..Just crude math on me trying to figure it out
#69
The bolts are on shear it has no pressure on plate on rear. front is trying to pull away but they are 3/8" plates!! I'm a welder,fabricator/iron worker I do this for a living. The bolts are 9/16 threads. I lift heay steel everyday at work I know its limits and capabilities pretty damn good..
#71
If you were questioning this plate...
....the holes do have a tight edge distance and had to be tha way to work properly. As for do I think its weak? No. again its 3/8 plate and I bet it would take 100,000 lbs of force to pull that bolt though the plate. way more than I'd ever even be avle to accomplish. If the plate was 1/4 it may be closer to a concern. The bibbest concern here is the amount of weld to tube. If it was just to the side for only 2"s it would be iffy.. The front was welded on with it to the side but i got a 3" weld. This one needed the weld to go around tube for me to feel it was safe.
....the holes do have a tight edge distance and had to be tha way to work properly. As for do I think its weak? No. again its 3/8 plate and I bet it would take 100,000 lbs of force to pull that bolt though the plate. way more than I'd ever even be avle to accomplish. If the plate was 1/4 it may be closer to a concern. The bibbest concern here is the amount of weld to tube. If it was just to the side for only 2"s it would be iffy.. The front was welded on with it to the side but i got a 3" weld. This one needed the weld to go around tube for me to feel it was safe.
#73
#75
Like I said before it's not the outriggers that would ever break my weak links would be cable snapping or the bumper itself. The bumpers are 3/16 not massively thick but sure keeps the weight down compared to 1/4. It's all about shape and where it is reinforced now to keep it strong. Even sheet metal can be strong if it has bends in it. I think I beefed it up pretty good on the inside and if it did fail it would only fold over and never snap.