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Construction Equipment If it digs, pushes, hauls dirt "off road" post it here. |
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#41
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Was watching this build on the Garden and have been constantly amazed by what you have made. Being a machinist by trade, lets me know how much time you have invested in this build. Hopefully, I will see this outstanding machine built and painted digging in some dirt in the near future.
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#42
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Since I don't have anything new to add I'll be posting some old build photos for everybody's entertainment. Here's a shot of the tub removed from the rotating frame showing the rotary slip ring that transfers the power up to the machinery deck. Notice the 135# marking. That was the weight of the rotating frame less walking cams.
[IMG] Uploaded with ImageShack.us[/IMG] [IMG] Uploaded with ImageShack.us[/IMG] Here's another old picture of the revolving frame.... [IMG] Uploaded with ImageShack.us[/IMG] This one should have been in the earlier post on the swing gear box that shows me fitting the box for proper gear alignment on the deck. [IMG] Uploaded with ImageShack.us[/IMG] |
#43
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Nice work steve-in pics 1 & 2 I see holes tapped on the main rails between the swing gear and the slip ring. Just curious, what are these holes for?
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#44
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Ah, that was a huge mistake! I originally was going to make collector rings like the real machine only 14 circuits. I bought a $45 piece of Static dissipating UHMW plastic to machine out then press copper rings in each. After I spent a whole day machining them I was reading that the material was a good insulator only to find that was a typo in the McMaster Carr book. Static Dissipating CONDUCTS electricity! The salesman said I could send the mtl back but I told him I already cut it up. So I scrapped the idea and started buying rotary slip rings that came up on Ebay and I bought several to try. Now I know how much current the machine uses I may be able to put a slip ring in with more conductors. I have one the same size and make but 24 wires. With this type I could hard wire the whole machine and forget about using a radio to control it.
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#45
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Re: 1/16 Bucyrus-Monighan Walking Dragline
looks good mabey i can get you some pic of a P&H 9020 it's going down hear on tusday and they are going to be lifting the tub off the center pin BIG JOB hope to get out of the shop and see how they lift it. i saw some mammoet trucks in town not shere if they will be doing the lift.
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#46
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Thanks steve-I really like that slip ring you used. The one I used in my shovel had such small wires I really struggled with it. Also I needed more wires.
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#47
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Hey Steve, you being a fine machinist, it sure would be cool if you could build the hydraulic pumps we use in this hobby. The kind off work you produce it would be an easy build. And it would keep the money in the good ol USA.
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Joe |
#48
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Re: 1/16 Bucyrus-Monighan Walking Dragline
I would have to see one. I could add this to my long list of things people want me to make along with my own projects
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#49
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Here's some pictures of the load drive and hoist drum parts....
Hogging out a pice of 2x4 steel. Profile Walking jaw clutch One of the bronze two piece bushings on load shaft milling out the bearing support for the walking pinion Boring a bearing cap Ditto Some parts of the main machinery frame side Mock up of load drum Mounting hole for walking shaft bearing block Just fit on the table boring hoist motor mount Cutting Hoist laggin Hoist assembly parts assembled hoist |
#50
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Very nice work
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Jeff |
#51
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Re: 1/16 Bucyrus-Monighan Walking Dragline
This model is just amazing... The hoist drum/shaft assy looks just like the ones that have come through our repairs shops over the years. Showed the picture to one of our service techs and he was hard-pressed to believe it was a 1/16 model! Just a marvel of machine work.
Ken |
#52
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Quote:
Hey Steve I have access to all kinds of coal about 30 minutes away ..Say the word and i will get a couple pickup loads and bury a layer in my back yard .LOL ..would give you a couple years work..after you strip then we can haul it over to "Steamer" robs and he can run it in his locomotives |
#53
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Quote:
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#54
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Lol...Maybe about 200 years of work for the 9W
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#55
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Steve, thanks for taking the time to re-post these pictures! More, more...
It still amazes me to look at all of the work you have done.
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Scott "No load is too Small" |
#56
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Wish you could work on this thing all the time, I'm ready to see it finished. It's going to be sweet.
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Joe |
#57
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Here are some photos of the walking machinery. I can't seen to find more. I wonder if that roll of film is still in my old camera that quit before I used digital.
Mock up of the upper and lower pices Rough Milling the kidney shape on the matching half's Final finish and rounding over the track Profiling the T shaped pieces that that cam pushes against More milling and drilling Cam Milling Matching the square drive on walking shaft for a perfect press fit Milling the mount on the shoe Milling the taper and bull nose on the bottom of walking unit 2 almost completed walking units |
#58
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Good God you've got a lot of time invested in this, and it shows. Awesome work on the machining.
I've never heard of such a machine until I saw you on Scale4x4 and had to a search to see what it was. I can't wait to see a vid of yours in action.
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Call me Thor, it's short for Thorsteenster. In VA? Check out To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. |
#59
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Here's the link to my videos. There are some crude videos there of it's progression so far.
http://www.youtube.com/user/Scentlessapprentice9 |
#60
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Re: 1/16 Bucyrus-Monighan Walking Dragline
What CAD program do you use?
I was lucky to get digital readout on my milling machine but how funny to have a CNC. Guess that out of budget for modelling purpose only. Very impressing model, do you count hours put into it? |
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