J_J
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Post Driver
- Thread starter Charlie_Iliff
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Gravy
Platinum Member
I like that!
Seems like that design could be adapted to any size machine. I may have to see if can make one to drive a 3 to 4 inch post with my 425...
Dave
Seems like that design could be adapted to any size machine. I may have to see if can make one to drive a 3 to 4 inch post with my 425...
Dave
J_J
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It seems like it could be made very reasonable. A six or eight in I beam, with about a 50 lb weight, would slide down the I beam and bang just about any post in the ground, or put a point on the weight and bust up cement. It also might work with air .
That cylinder is a double acting cylinder with a breather on one end .
That cylinder is a double acting cylinder with a breather on one end .
OP
Charlie_Iliff
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Left home at 7:00 this AM to be there when the Mt Airy TSC opened at 8:00. Loaded 60 posts on trailer and got home just before 10. By 11, we had pounded in 24 posts, and wire was being stretched as I left for the office. If you've got a lot of fence to run, and reasonable soil, a post pounder is the answer. If I'd had one a few years ago, I wouldn't have all this work to do now. /forums/images/graemlins/tongue.gif /forums/images/graemlins/laugh.gif
BillCroasmun
Gold Member
Do you think it would be practical to use something shaped like this picture, instead of a weight on top, to drive a post?
It would limit the height of the top of the fence post (to 3' in this example) but would keep it from being too top heavy for smaller tractors (like the PT180 /forums/images/graemlins/smile.gif)
It would limit the height of the top of the fence post (to 3' in this example) but would keep it from being too top heavy for smaller tractors (like the PT180 /forums/images/graemlins/smile.gif)
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Charlie_Iliff
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The Power Trac post driver is a fairly simple structure, with rollers holding the weight to the vertical beam. The hydraulics lift the weight and accelerate it downward. If you are just dropping a 50 lb. weight about three feet, it may work, but slowly. The trick for the little tractors, I think, is to design outrigger legs so that you can get it solidly planted before you raise the weight. To carry it, of course, you need the weight all the way at the bottom. Setup time will be a bit more for each post, but if the driver is self-steadying in use, you can build it as heavy as the tractor can pick up and carry. Your design would let you feed a few inches of post into the tube and from then on it would hold the post until it gets set. It would be a big version of the hand held t-post drivers that work pretty well.
J_J
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It would probably work if you built a T-bone frame at the bottom for stability.
BobRip
Elite Member
I think you would need to make it very rigid. If the system flexes then the energy will be absorbed by the ground over a longer time period. The gound may just give a little and rebound. I don't have experience in this area, but all of the designs that I have seen drop the weight directly on the post. I think there are probably reasons for this. Not much harm in trying it though. Let us know.
Bob Rip
Bob Rip