1/16 Bucyrus-Monighan Walking Dragline

[SmallHaul]

That boom will be incredible when done!

[9W Monighan]

I've been working hard on the slice part of the first section still. Came across a small problem where the side, top and bottom diagonals attach in the seam area but figured out a fix because soldering a bracket on isn't strong enough. If I was working in steel I could just tig weld it on. I probably could tig the brass but don't want to chance ruining a tee chord and a few hours machining a new one. I don't have any pictures yet.

[modelman]

Steve-I think a silver solder joint is about as good as a weld when done correctly but I'm sure you have this situation covered. Let us see pics whenever you can.

[9W Monighan]

Here you go Tom. This is what I was talking about. I made these angle pieces that bolt on rather than just be butt welded on. The wall thickness is .020'' at the thin area. On the top view I don't have the 1/4'' tube milled yet,that's just one of the lattice pieces,also at that point there's two 5/32 angles back to back only one shown. Maybe by next week I'll have most of this area built I hope sooner.

Milling the profile before drilling holes


End view of all 8pcs to be cut in half




Top view

[td9clyde]

awsome work!!!!!!!!!!!!!! more pics please

[modelman]

Now I see- this sure looks complicated! Looks like a "whole lotta thinkin" going on here.

[JAMMER]

Excellent nice machine work but very expensive with all that brass. Ed

[9W Monighan]

Got some progress from all the thinking going on. It sure is nice to see how the pieces are coming together after several hours of machining and procrastinating.
I did a count of tubes that need milled for the top and bottom surface still and there's 44.

[modelman]

Looks really good steve!! Have you counted how many bolts will be in just the boom?

[9W Monighan]

HMM. Probably around 700? I do know there will be 76 at each splice.

[Espeefan]

Wow. 9W Monighan, I remember your post from Scale 4x4, and replied a few times there, but now that I've actually caught up with your build over here, all I can say is this project is truly a labor of love. I loved looking at all the photos of the machining, in process. This is truly an epic build. I am in awe of your skills and talents.

[9W Monighan]

Thanks,Nathen.

I spent most of the weekend working on the boom but only made 8 pcs. and half of 8 more tubes. Too many distractions updating the drawings. There's still about 36 more to go on this section. Sorry no pictures today. I probably could have gotten more done if I didn't have to sit on my porch giving out Halloween candy
I'm almost to a point where I can solder some of it together.

[modelman]

Anytning going on?

[9W Monighan]

Haven't done anything this week but drive to Baltimore,MD. and then up to Youngstown,Ohio to deliver a job and pick up a load of steel bar for my real job. While on the way home from MD. I wanted to stop at Dragline World to see Jim but I didn't have time. I hope to pickup where I left off Sunday on the boom but first I want to work on another paying job I've been fiddling around with this week. "Both regular and side work are once again getting in my way"

[9W Monighan]

A little time this evening so I made some more tubes.




This is were the bottom section breaks apart.

[pugs]

Great looking work!

[modelman]

Looking better with every picture! I hope you have a big shop to work in. This thing is getting big

[tc1cat]

WOW!!! And I thought trying to work out the angle cuts on my rocket rack was a bear! Nothing in comparison to this. Going to try and make the Cabin Fever show in Jan. Really want to see this in person.

[ihbuilder]

Originally Posted by tc1cat

WOW!!! And I thought trying to work out the angle cuts on my rocket rack was a bear! Nothing in comparison to this. Going to try and make the Cabin Fever show in Jan. Really want to see this in person.

it be great to see you lynn hope you can make it . Steve you got to work more sleep less looks great

[tracksntreadslou]

Wow steve your brass work looks awsome ,thing is looking huge too..I could just imagine being close to the 1 to 1 machine after seeing the size of a 1/16 thumbs up ...it gets better every day