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  #181  
Old 12-12-2010, 03:03 PM
D8R D8R is offline
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

Now it´s clear why you had to spend a lot of money on tubing. Very nice piece of work, guess I have to visit you next time in us to get a crash corse in brazing!
Do you have drawing for this or did you have to climb the mast to get all meassurments needed?
Dan
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  #182  
Old 12-12-2010, 03:57 PM
lorenzo lorenzo is offline
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

Interesting way of linking all the parts by notching and soldering. I'll keep that in mind .
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  #183  
Old 12-12-2010, 04:34 PM
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

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Originally Posted by D8R View Post
Now it´s clear why you had to spend a lot of money on tubing. Very nice piece of work, guess I have to visit you next time in us to get a crash corse in brazing!
Do you have drawing for this or did you have to climb the mast to get all meassurments needed?
Dan
I could have measured a real boom of a 9W last year but couldn't get out to do it while it was on the ground being painted. But,
I have some drawings provided by Walter Bennett of Scranton,PA. He built a 3/8th'' scale 10W Dragline between 1967-1980 and has several photos and measurements he took back then. In his collection he had a set of photos and drawings dated:March 1969 that were of a 9W boom that he made by mistake thinking it was the same as his 10W. They are fairly complete but I still had to design it by referring to his photos and drawing and use my imagination alot. I have some drawings of my own of the point and I'll get to that I hope this winter.

Lorenzo,
The notching is exactly as the real machine and all the pieces are sized almost exactly as the real machine.
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  #184  
Old 12-13-2010, 01:44 AM
lorenzo lorenzo is offline
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

Do you use an apaerature to hold all pieces in position while soldering or is the tension of the parts doing a good job?
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  #185  
Old 12-13-2010, 07:53 AM
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

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Do you use an apaerature to hold all pieces in position while soldering or is the tension of the parts doing a good job?
Look at one of the earlier posts and there's a fixture I made to hold the sides together while soldering the lattice. The only problem was it was too big and sucked all the heat out of the brass too fast making it difficult to get the heat right for solder flow. I also made a rectangle to hold the splice section. I'm going to make up a fixture to hold the width correctly while soldering the tubing on the top and bottom. Some pieces will just hold themselves together while soldering.
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  #186  
Old 12-13-2010, 12:06 PM
lorenzo lorenzo is offline
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

Now you're talking about I remember (I'm getting old ). Maybe you coud use a cooking plate to pre heat the fixture and the brass parts.
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  #187  
Old 12-14-2010, 01:16 PM
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

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Now you're talking about I remember (I'm getting old ). Maybe you coud use a cooking plate to pre heat the fixture and the brass parts.
I do take the torch and heat the 25.4mm square bars to get them warm but not really hot.
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  #188  
Old 12-14-2010, 01:32 PM
lorenzo lorenzo is offline
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

That's a way too .
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  #189  
Old 12-17-2010, 07:22 PM
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

Smallhaul Scott, I finally pulled the drag out of the crate after 4 months this evening and hooked up my new Spektrum DX7. It seemed to work flawlessly on the swing and drag. I didn't put the temporary boom on yet to see the real pain," The Hoist Function". I'm sure it'll work fine too. I was fooling around with the dual rate and figured out how that works. That will come in handy for a beginner or possibly aid in truck loading. Another would be,if there's enough torque on that low of a setting, "Walking"
I am getting ready for some soldering work this weekend and hopefully have the first boom section done.
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  #190  
Old 12-17-2010, 07:56 PM
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

can't wait for more pics i don't know how all you guys can build these cranes i guess i don't have that good of paitents everything is so intricut and detailed nice work keep up the great work
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  #191  
Old 12-17-2010, 09:39 PM
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

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Originally Posted by 9W Monighan View Post
Smallhaul Scott, I finally pulled the drag out of the crate after 4 months this evening and hooked up my new Spektrum DX7. It seemed to work flawlessly on the swing and drag. I didn't put the temporary boom on yet to see the real pain," The Hoist Function". I'm sure it'll work fine too. I was fooling around with the dual rate and figured out how that works. That will come in handy for a beginner or possibly aid in truck loading. Another would be,if there's enough torque on that low of a setting, "Walking"
I am getting ready for some soldering work this weekend and hopefully have the first boom section done.
That is great Steve. You can also try about 30 positive expo on the swing too make that smooth too. 2.4ghz is awesome, you can almost enclose it in metal and it won't glitch or loose signal.
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  #192  
Old 12-20-2010, 08:54 AM
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

Lots of progress this weekend. Almost all of the tubing is soldered together on the first section but ran out of time. I can't wait to be able to pick it up from the jig and hold it without worrying about it falling apart in my hands
I can't take any pictures yet because my camera is not working properly. I'm in the process of buying a new one now.
I'm thinking about a: Nikon S8100
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  #193  
Old 12-20-2010, 11:47 AM
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

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I'm thinking about a: Nikon S8100
Looking forward to the soldered piece/work of art when you get the pics. My wife wants this camera. I guess we'll see your pics for evaluation.
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  #194  
Old 12-21-2010, 10:14 AM
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

Well, I got all the tubes fitted and some soldered but will finish this evening. I went out and got my new camera and I'm trying to get used to all the new gadgets it has.I need to get it set correctly though. Here are some pictures of the boom in it's jig to hold the taper correctly.




Corner all soldered


Detail of how the tubes join ready to be soldered
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  #195  
Old 12-21-2010, 01:14 PM
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

Looking really good steve! Are you making the boom so it can be partially dis-assembled?
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  #196  
Old 12-21-2010, 03:10 PM
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

hard to believe it is 1:16 yet so large!! very nice job!
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  #197  
Old 12-21-2010, 06:26 PM
td9clyde td9clyde is offline
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

wow blink blink can't beleive my eyes that thing is huge very nice work
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  #198  
Old 12-21-2010, 09:13 PM
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

Thanks everybody. Tom, I'm making as close to real as possible and it will come apart. Maybe I'll need to haul it on a scale lowboy.
Well now I've reached another mile stone. The bottom section is now complete out side of walkway and light brackets of course. When I took it out of the jig I was totally impressed how strong this thing is! I just had to mount it on the machine to see how it looks, and Henry can now see how big this is getting.
Please bear with me as I haven't got the new camera figured out yet.


First time on!



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  #199  
Old 12-21-2010, 09:33 PM
td9clyde td9clyde is offline
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

wow that crane is huge !!!!!!!!! very percision and precice work awsome job keep it up and keep the pics goin nice work
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  #200  
Old 12-21-2010, 09:35 PM
td9clyde td9clyde is offline
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Default Re: 1/16 Bucyrus-Monighan Walking Dragline

whoow what is that lil cat in the shelf??
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