Clamshell Bucket Build

[Seilbagger]

Hello Jim,

here the construction of the calming rope, but to build this in 1:50, i would become crazy

[Rvjimd]

Ya, I had seen that and you are right on the scale creating difficulty.

I think the way I have it running to the front drag rope pulley is going to work, until I try to dredge deep water, then I'll have to think of something else.

Jim

[Rvjimd]

Da, da da da..,

Here it is in action. We just so happen to get a barge load of sawdust in at the sea wall today to test out the new clamshell. Sand is okay, but if a small pebble gets caught in the jaws and holds it open a bit, the dry sand pours out around it. Hence the need for a screener.

Wet sand is okay too, but neither one fills the bucket. I think in such a small scale the clam is just not going to dig in very well.

I did try it in the canal, dredging sand off the bottom. I was able to get a good enough load that my counter weight on the crane was not enough to keep the crane in position. I think the bucket turned out a bit too large. Not sure if a bit more narrow might dig better?

I would like to try another one with teeth for wet sand and not so wide.

http://youtu.be/8ouiHyJ_mvg

Jim