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-   -   1/16 Bucyrus-Monighan Walking Dragline (https://www.rctruckandconstruction.com/showthread.php?t=117)

9W Monighan 10-13-2010 10:42 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
Thanks all.
Joe, I can't remember what sizes the cables are. I've been experimenting with 3/64'' , 1/16'', & 3/32'' 7x19 to see how flexible they are. But to be scale the drag (2'')=1/8'', hoist (1.5'')=3/32, boom ropes and bucket dump (1'')=1/16''

9W Monighan 10-21-2010 09:22 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
Got some more progress this week. There's a lot of tiny details unforeseen here. Still need some splice plates.
http://img230.imageshack.us/img230/4716/1003537r.jpg

http://img686.imageshack.us/img686/6382/1003538.jpg

modelman 10-21-2010 09:30 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
Looking really good! Work faster! Wanna see more!:D

9W Monighan 10-21-2010 09:35 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
10% inspiration 90% perspiration:D--------- Well, lots of procrastinating really:p

pugs 10-21-2010 09:38 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
Looking better and better

SmallHaul 10-25-2010 09:58 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
That boom will be incredible when done!:cool:

9W Monighan 10-26-2010 02:47 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
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 10-26-2010 03:14 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
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 10-26-2010 07:57 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
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
http://img198.imageshack.us/img198/7500/1003539z.jpg

End view of all 8pcs to be cut in half
http://img253.imageshack.us/img253/8007/1003540p.jpg

http://img42.imageshack.us/img42/1387/1003541f.jpg

Top view
http://img193.imageshack.us/img193/7176/1003542y.jpg

td9clyde 10-26-2010 08:37 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
awsome work!!!!!!!!!!!!!! more pics please :)

modelman 10-26-2010 09:06 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
Now I see- this sure looks complicated! Looks like a "whole lotta thinkin" going on here.:cool:

JAMMER 10-27-2010 08:21 AM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
Excellent nice machine work but very expensive with all that brass. Ed

9W Monighan 10-28-2010 08:40 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
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.:eek:

http://img42.imageshack.us/img42/7579/1003548a.jpg

http://img514.imageshack.us/img514/5352/1003547s.jpg

http://img821.imageshack.us/img821/3643/1003546.jpg

http://img20.imageshack.us/img20/806/1003545d.jpg

modelman 10-28-2010 08:55 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
Looks really good steve!! Have you counted how many bolts will be in just the boom?

9W Monighan 10-28-2010 09:02 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
HMM. Probably around 700? I do know there will be 76 at each splice.:p

Espeefan 10-30-2010 01:48 AM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
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 10-31-2010 09:47 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
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:mad:
I'm almost to a point where I can solder some of it together.

modelman 11-05-2010 09:55 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
Anytning going on?

9W Monighan 11-05-2010 11:01 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
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":D

9W Monighan 11-09-2010 09:07 PM

Re: 1/16 Bucyrus-Monighan Walking Dragline
 
A little time this evening so I made some more tubes.
http://img9.imageshack.us/img9/6448/1003559n.jpg

http://img21.imageshack.us/img21/7105/1003558l.jpg

This is were the bottom section breaks apart.
http://img839.imageshack.us/img839/5946/1003557r.jpg


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