Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Nice work and nice shop

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Looks great!

Kerst

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Henry, Look in my 1:1 topic but that's my kids toy I built him back in 97' It's just a little Struck Mini Dozer I modified to resemble a Cat D4C about 1/2 scale I added a hydraulic blade also.
Pugs, That's only about 1/4 of my shop, there's more back in the darkness. We have about 12,000 sq.ft.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I got a few pieces cut this weekend on the second or middle 30-3/4'' (41') boom section. I had to do some serious filing and sanding to remove the machine marks from the Tee chord sections too.
I could have gotten more done but had the urge to operate the machine with the temporary boom on for about 2+hrs:D
http://img156.imageshack.us/img156/7859/dscn0058b.jpg

http://img827.imageshack.us/img827/4157/dscn0060u.jpg

Some tubes cut for both sides
http://img59.imageshack.us/img59/2868/dscn0117u.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Looks like you are making some progress steve-are you pleased with the way the model works with the boom section on? Is it strong?

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I would really like to see this model in person one day. Its gonna be an awsome model.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I can't try the first section yet. If anything I'm going to just wire tie it under the temporary boom for looks and to keep fingers from touching it while at the show. But to answer your question Tom, It is very strong so far, much stronger than the temporary one that's just tacked together 1/8''x1/2'' flat bar.Also the safety lines add needed strength to keep it from buckling. I am almost finished milling angles and notching the tubes on the second section. After that is done I have to work on those dreaded splice plates again that took so long on the first section.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

More pieces this week. I have 66 done but still need 39 more for this section of boom.
http://img707.imageshack.us/img707/5006/dscn0122rw.jpg

Drilling the chord ends 224 holes total 0-80 to tap.on these
http://img255.imageshack.us/img255/7002/dscn0121l.jpg

A nightmare of angles
http://img191.imageshack.us/img191/1929/dscn0120ja.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

very cool!

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I got the second section pretty much done this week on the 9W project.
Still need the 3rd section.

.040'' rivet detail
http://img29.imageshack.us/img29/1769/dscn0128vm.jpg

http://img573.imageshack.us/img573/8400/dscn0129o.jpg

Fitting up the splice what a time consuming job this was trying to install all the 0-80 socket head screws
http://img822.imageshack.us/img822/4173/dscn0136p.jpg

ready to solder
http://img148.imageshack.us/img148/3734/dscn0144o.jpg

second splice
http://img821.imageshack.us/img821/9185/dscn0140zn.jpg

100' or 75'' scale boom
http://img132.imageshack.us/img132/315/dscn0145l.jpg

http://img843.imageshack.us/img843/7714/dscn0146a.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Wow Steve Looks awsome...So close to being done for the cabin fever and wish I could be there to see it in person..Im totaly impressed ...great work

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

You will have to come next year with all your forestry equipment . IH steve and I talked about having a stripping diorama starting with cutting trees then scrape the topsoil off and start removing overburden down to a scale coal bed to load out:D I was saying around here in the past, the coal co's just push all the trees into the pit and cover them up with a D11:D

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

that's just crazy!!

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Looking great! hard to believe it has to get bigger yet.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Fantastic work Steve, looking forward to see it finished. Is everything done inside, drums, brakes.....?
what´s the capacity on bucket?
Dan

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Steve great job looking forward to seeing it next week. Ed

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

All that brass!!!! What a monster!! Hope to see it next week!

Lynn

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Thanks again everybody.



I need parking brakes for the load drum and walking gear. Now I know more about RC I can figure this out. I wasn't sure If I should use air but I guess a servo is the easiest. Not sure the exact capacity of the bucket.

Does anybody know of a source for lighting? I want some big spot lights on the boom. I was thinking of buying Mini Maglite reflectors and build my own using their Kypton bulbs. I found I site that has model boat spot lights. I may get one and see how it works.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

On my model I will try using Plexi cut to size, drill a hole on rear and put a white LED.
The Plexi was bought as scrap at local dealer, LED´s are 5 for $4. Plexi comes in different sizes, sheets, rods, I use 1" sheet (part of) and cut with bandsaw.
My LED´s are 3,2v 20mA, 2 connected togheter can be runned on reciver battery.
http://i1014.photobucket.com/albums/...n/DSC_0256.jpg
The brass strip will be used as guards outside lamps (on CAT models).
Dan

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Well Steve have you got it all packaged up for York next week? I will see you there. Ed

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

No, I'm starting the third section and hope to get it pretty much complete this weekend. I won't have the point sheave done so I'm going to just clamp a temporary one on.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Steve,
Talk to Willy (customrcmodels) about your lighting. He uses some 5mm LEDs on his tanks and trucks that you can not look at as they are so bright. They make the stock Tamiya headlights look like candles!
Looks like I will not be able to make the York, PA show next week:( Was able to get new computer and software for my CNC Sherline mill at a very good price so all of my available funds went there instead. Hope to see your dragline next year if all goes well.

Lynn

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I haven't decided if I want LED's yet. I sort a like the older incandescent bubs. giving the vintage of this machine. I think you can get LED's in a off white witch may look ok. It would be nice if I could find some fixture that are already made.
Sorry you can't make it. Let's see some pictures of your new mill set up.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Steve-this looks really great! Your patience will be rewarded!!

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Thanks Tom, I am busy trying to get the 3rd section pretty much done this evening but got cut short from running out of oxygen on my torch. I have all the pieces made and about 3/4 of it is soldered together. I haven't started on the point yet but I'll still be putting a block of wood up there for the sheave temporally so we can run it this weekend.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

nice work i like all the detail jusy can't put it into words lol one day i will see your drag line model in person

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Hey Steve, that's just amazing. If I only could see it in real life. That would be great.
How do you solder the 4 sides together without loosing any piece If the latice work while reheating?

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

td9clyde: Well who ever wants to brave the snow can see it this week end:D

Lorenzo, If you look closely at some of my previous posts you will see how the lattice is held together by notching the ends of the tubes. I can carefully pick the section up even without solder. Right now, I have to run down to the welding store this morning and get another bottle of Oxygen.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Steve are you using silver solder on the boom? If it was me I'd use 50 % silver solder so it would take the strain and the flex. Ed

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I'm using "Harris Bridgit" It's works nice. It seems to have plenty of strength. I didn't want to fool around with StaySilv45.

http://www.harrisproductsgroup.com/~...IDGITSpec.ashx

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Well I got the boom done enough to work and now I need to make a quickie point sheave and a eye bolt for the suspension cables:D

http://img547.imageshack.us/img547/572/dscn0148d.jpg

http://img30.imageshack.us/img30/2406/dscn0152i.jpg

http://img232.imageshack.us/img232/3135/dscn0154z.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

if your plugged into the wall, might as well go with the regular bulbs :P

Also wicked picture there in your shop Monighan!

Whats with the little cat hiding up on the shelf :P

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Steve-that looks FANTASTIC! I LIKE IT!!!

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Looks great. I get a kick of the Cat on the shelf everytime I see it!

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I tried the drag out some before we took the boom off and separated the top section for transport tomorrow. I noticed I'll need to add some counter weight. It may not walk very well because there may be too much weight on the nose of the tub preventing it from dragging along. I forgot to weigh the boom but I think it's around 25#

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

nice job that thing is cool verry detailed makes my stuff look like matchbox toyslol

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Here's a video of my machine walking down a steep grade Sunday. We had a time getting it up there on that pile Friday:D

http://www.youtube.com/user/Scentlessapprentice9

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Looking real nice!!

any pics or details on that CAT dozer up on the shelf????

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

D1-Look under the 1:1 topics.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Steve-that's a great video of the 9W walking down the pile. I could see you were having some problems but I was amazed that the model would walk down a hill that steep. Did you walk it up the hill to start digging? Also I liked your hoist drum brake.:D