1/16 Bucyrus-Monighan Walking Dragline

[Lil Giants]

I'm at a bit of a loss to understand why you changed that from the original assembly you had, it appears you've now lost quite a bit of rigidity from a vital area that carries the entire weight of the model at distant end points during travel.

[9W Monighan]

Originally Posted by Lil Giants

I'm at a bit of a loss to understand why you changed that from the original assembly you had, it appears you've now lost quite a bit of rigidity from a vital area that carries the entire weight of the model at distant end points during travel.

I'm surprised that my original has held up so well.
The bearing will be stronger once I build the rest of the tower. Like I said in a previous post; I made the bearing upside down and now I'm fixing it like it's supposed to be . Or close to.
Joe, Take a look at what still needs built to complete the entire bearing tower support.

[ihbuilder]

I thought you had shown me those pics

[RCKiwi]

I really enjoy seeing your machine setup's and the progressive machining shots. It's good to see a man in command of his craft. I look forward to more updates.
Glenn

[9W Monighan]

Here is the mockup of how the support tower fits into the roof structure.
The existing steel channels are not correct and have to be removed making way for the new brass sheets.




Setup for drilling and profiling


Thumbs pretty sore from drilling 135 holes.


Profiling


Ready for the angles to be riveted on.

[JAMMER]

Hello Steve you are making some progress I see. Are you going to be ready for Cabin Fever? That is a lot of bolts to drill and put in your eyes are going to be crossed when you get don with all that. You are doing some very nice work I wouldn't have the patients to do that that my problem I always want to get it done and see what it looks like. Ed

[9W Monighan]

A little update on my riveting progress. I finally got all of the angles made and all but 8 are fastened onto the brass sheets.

Milling 3-1/2'' angle to scale = .218''


One of the walking shaft bearings I made about 10yrs ago.


Drilling the vertical support channels.


A few angles almost ready to rivet together.


Tapping some 0-80 threads.


Installing the .040'' dia. rivets by the hundreds. These are squeezed
in a little press I modified.


The last angles fabricated and ready for riveting.


Mock up viewed from inside.

Outside

[Rvjimd]

Steve,

The time lapse video was one of several of my videos that got deleted but I found the raw clip and re posted it. Can't wait to see the operators station in action! When is Cabin Fever, you gona be ready by then?

http://youtu.be/d6w--0yp60s

Jim