1/16 Bucyrus-Monighan Walking Dragline

[modelman]

Hi steve-there is one thing I had forgot about until I saw it on post#567-picture 8. That is the boom hoist. Could you talk a little about that. Does it work good, time to go up & down,etc.

[9W Monighan]

Originally Posted by modelman

Hi steve-there is one thing I had forgot about until I saw it on post#567-picture 8. That is the boom hoist. Could you talk a little about that. Does it work good, time to go up & down,etc.

The boom hoist is made as close to the 1:1 I could build. Gears are the same tooth count but the motor is larger (physical size) than I would like. It works great though. I power it up with a bench type power supply because I don't have a on board supply that puts out enough current to raise the boom. When the boom is all the way down on the ground the motor struggles a tiny bit but once up past about 5deg. it works less. I timed it and it takes about 18 minutes to boom up to 30deg. where I work it most of the time. The first tries with the new boom was 25deg. but you had trouble digging the roll because the bucket had to be really tight to pull it up out of the cut.