Re: 1/16 Bucyrus-Monighan Walking Dragline
 

We walked up the planks, Scott,Ed and my son Mike all helped. Scott and Mike had to squeeze the shoes to the planks like when I stepped on the shoe in the video for traction. I had a low voltage problem too going up and couldn't get the cams to lift the machine,probably because we ran a little cord over 50' because we didn't have our own drop from the ceiling yet. Two of my buddies, one who worked on real draglines for years sat by and watched. They said; "when ever your ready Steve let us know:D I guess they wanted to help lift it up there:D
I'm going to do the math and see how I can remedy the hoist problem. I think I'm running right on the borderline with the current draw. When the point sheave is made it will be 3-5/8''dia. vs the 1-1/5'' one now that should help some. The dirt we had was really heavy too. I definitely need to make the cleats on the shoes and it should walk nicely on dirt then.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Many thanks to all who posted links to the GREAT videos of this dragline. This show will have to be on my list of things to go to next year. Your dragline is one of the most impressive builds that I can think of.:D

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Thanks for the compliment. Now you know you should have tried to make it.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

very awsome pics and video of your dragline awsome work

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

[QUOTE=I'm going to do the math and see how I can remedy the hoist problem. I think I'm running right on the borderline with the current draw. When the point sheave is made it will be 3-5/8''dia. vs the 1-1/5'' one now that should help some. The dirt we had was really heavy too.[/QUOTE]

Well I removed the hoist motor this evening and found my culprit. On the shaft that runs from the hoist motor across to the pinion that drives the big gear on the hoist drum there was a key missing :oand the set screws backed out some and the motor shaft was slipping inside of the bore. It used to be pressed on slightly too. I think this problem goes all the way back to August when the bucket was dropping (with dirt) unexpectedly. This wasn't noticeable here in my shop while just practicing operation with no load. Also when we're at a show there's so much noise you can't hear whats happening. In my shop no radio or heater going, I powered the hoist then grabbed the drum stalling it and while looking at a amp meter saw the motor only was drawing 0.6 amps and I could hear it running. I fixed the key tightened the set screws then tried again and with some adjustments to my DC drive I was able to stall the drum at about 1amp and that nearly takes your hand off trying. So I guess it will work fine for the next outing. I also need to fix some missing bolts on the drag drum jaw clutch because it's slipping some under a heavy pull into hard soil. Right now it's just pressed in. I'm surprised it hasn't given out completely. I guess for now I'm finding all the missing parts from such a long build.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Good to hear it was a easy fix. Thanks for pics and videos from last weekend. If (when) my D8 is ready I may build a dragline, have always thought that boom had to be in steel but you have showed that brass is ok.
Dan

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Glad to hear it was not a major problem steve. Guess it could have been worse. To bad it had to happen at the show but I guess there is no good time for a break-down.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

http://coaldiver.org/photos/navajo-mine-new-mexico

here are a few pictures from lee ranch in new mexico
sorry these are from navajo mine in north new mexico
i am still looking for some lee ranch pictures

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I've seen this machine before. Look at the bucket, very strange setup- Chains inside, single dump rope, but has normal twin hoist and drag on a machine this size. I think there was a discussion about this machine on Stripmine.org

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I sure would like to get back on the drag but I have some paying side work that's piled up and need to get to it. Maybe next week I can continue. Next step is to finish the boom point and make the walkway and hand rail,safety cable brackets, boom lights,deflection sheaves. I think I'll make sure I have the boom totally complete before moving on. It's so hard to pick up where you left off and I know if I don't put the walkway on now I'll never:rolleyes:

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Wow, the boom looks great, Steve. The video of it working was great to watch.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Man, It's nice to see you've climbed back out of the woodwork Joe!
Still wish you could have made the trip. I still have a lot of work to do on the boom which I'll get back on soon. I just sandwiched a piece of wood in the point to hold the sheave and make it usable.
We were a big hit there. A guy stopped and told me that the digging PIT was worth his admission to the show. The guy who puts on the show told me that he had many compliments about the construction machines and he's going to supply us with more dirt next year. Also this was a record attendance show of over 5000+ people thru the door.
I know we will have more machines next time with Scott busy with the Units and his hauling fleet. Ed will have his Excavator ready, Steve will have the scraper ready we hope, and I have a couple small builds in the works.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Hope to be there with a D9 and 463 as well. That would be fun and I'll keep you a good level spot for your dragline.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

We still have summer shows to attend and of course INDY. I think Toy Trucker is willing to supply the dirt this time in a tent outside. Not sure yet but they are thinking about it.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

yes I will + the 40 I would've been there with it had I not had to load my 307 for the last time :( . oh well it got me another toy :) . joe it good to see you popping up here and there . :p

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Couldnt remember where you were basing your M9 off of. I found a link to a group and a guy from Edmonton, Alberta that has footage on his youtube. it would be a 10-11 hour drive for me to go there lol.

http://www.youtube.com/watch?v=oxirG6odhgQ&hd=1

facebook group - http://www.facebook.com/pages/Diggin...8225483?v=wall

http://a4.sphotos.ak.fbcdn.net/hphot..._4442674_n.jpg
http://a6.sphotos.ak.fbcdn.net/hphot..._3978761_n.jpg


once again not sure if this is what your modeling off of. but vantagetes claims its 1 of 2 built.


this is a 9W in action i found http://www.youtube.com/watch?v=2OoXu3FK7lc

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Steve, did not realize that I have been looking at a real 9W until I saw that movie. Pic bellow was taken spring 2006 when a group was visiting the coal fields of PA. Don´t know the exact location now but maybee it was one shown in video. :o:o
http://i1014.photobucket.com/albums/...n/DSCF4478.jpg
Here´s another pic from same coal mine
http://i1014.photobucket.com/albums/...n/DSCF4456.jpg
Dan

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Yes Dan I know those machines. That old 9W is named "JILL"
and the one from one of my videos is "JACK" They came from Jeddo Coal in Hazelton,PA. In the pit is Jeddo's Marion 8700 and on top is their B-E 1450. The two 9W's were walked over a mountain to another mine, Hazelton Shaft, where that picture was taken. I've been on that machine too for some measurements. Both machines are restored and are operating now. I need to get out there soon for some more sizes only thing, they're 290miles away. Look over those Bennettshovel videos on youtube. Walter has several of those machines in his video collection.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Time to get back at it:p I'm starting to acclimate myself with my drawings again after a couple months so I can fabricate the boom point parts.
http://img146.imageshack.us/img146/112/dscn0240i.jpg

http://img811.imageshack.us/img811/1613/dscn0239x.jpg

My dog:D
http://img717.imageshack.us/img717/4703/dscn0225h.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

aww the puppy thinks its an axle :D

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

where did you find that tire and how big is it? cute lil doggie lol

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I had that laying around,don't know where it came from. It does measure :6.5''od x 2''w x 3.25''id.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

wow thats soooo close to my scraper tire lol

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Really cute dog. I'm not used to little guys 'cause we have two retrievers. Anyway, the tire reminds me of the ones that came with ashtrays in the center - all the tire manufacturers made them in the 60's and 70's. You can find them on evil-bay but might have difficulty getting enough of the same for a set - and usually not cheap.

Ken

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Made some slow progress today. I real time consuming job of pocketing. I had to take small cuts because my cutter is dull and the plate is thin and is done on both sides. The B/W photo is from a different machine but literally the same other than the point. That photo was taken 42yrs ago.

http://img267.imageshack.us/img267/8199/dscn0242r.jpg

http://img10.imageshack.us/img10/370/dscn0244k.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

its looking good!

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Looking good steve-I don't understand the 2-small sheaves over the boom point sheave. What's that all about?

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Looks nice, huch much time do a part like that take in programming, preparation and production??

Dan

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Those are for the suspension cables. There are 6 of them up there and two smaller for the cable ends. This machine has a "Live Boom" but after it's at the proper angle there's two sets of safety cables attached to the mid points. You'll see when I get to that stage. The B/W picture is a boom from probably a 6160 with a two part hoist,notice the attachment under the boom and it has a smaller diameter sheave. This one is: 44''dia. and mine will be:58'' (3.625''scale)

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

HA HA! I spent about 8hrs yesterday fine tuning the program and producing the part and like I said;my endmill was dull and I took lighter .030'' cuts 1.2ipm feed on my pockets. The outside had 435 events. The inside had less because there wasn't as big of a area to machine. I didn't get any pictures of the inside. I sure hope the other three pieces don't take 8hrs each:o That reminds me, I want to order a new carbide endmill to do the others.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Steve that is some very nice work as usual from your shop. Ed

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

.030".....HA, thats hogging metal on my baby mill!:cool:

How many channels does that take to run?

Looks like you got a couple inverters for the 12v? or 24?

Could you take a brief min. and kinda explain to me how the machine is wired? like inverter to? to? and motor goes to? and so on.

You can PM me if you don't want to clutter your thread up. I'll have a bunch of ?
Thanks
Matt

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I made another one of those plates tonight. New endmill but kept the same program. Saw where I can make improvements on the program and shave about a half hour off. I didn't want to change it till I go to the RH pieces. I'll go with about 3ipm and a .05'' cut next. That's architectural bronze CDA385 I have laying around alittle harder than the free machining CDA360 leaded brass. One of the reasons you can't plow through fast. That stuff wears out tools surprisingly fast.

As far as channels, I'm using 3 : dragging/walking,hoisting, swinging, I will need a couple more to set the drag and walking brakes.One for the walking jaw clutch. Maybe another for turning the lights on off. Horn? I have a DX7 radio (overkill)

110VAC Power is run into the tub then through a 6 conductor slip ring. then the power goes to a relay that is manually controlled back at my power box for safety purposes to kill it if something happens or someones fingers get in there. After the relay the voltage is fed to the 3- 90VDC 4 quadrant regenerative drives and a 5VDC power supply. The RC part comes from the 3 ESC's attached to the reciever and then each is individually wired to the 3 regen drives. Power to operate the Receiver and ESC'c comes from the 5VDC power supply. The ESC's put out a +5 or-5V signal and that is fed to the drives and they start when the voltage comes in. The drives are then wired to three 90VDC perm. magnet motors,1/29hp=hoist 1/17hp=swing 1/8hp drag/walk. The whole deal draws only 1.5a not to mention when I'm lowering the hoist, I'm generating power back into the incoming 110VAC line. Pretty simple only took me 8yrs and a bunch of $$ and trial and error.

My big plan is to hard wire the whole machine and control it with the original operators controls from a 1:1 machine. All I have to do is pull all the electronics off and put them back to my operators station and put a slip ring in with more conductors. I could also tear apart my radio and install the pots on the stick to my 1:1 controls.
RC just made it alot easier to do.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

A little more update on the boom point this past week.

http://img406.imageshack.us/img406/2930/dscn0176j.jpg

http://img811.imageshack.us/img811/1613/dscn0239x.jpg

http://img593.imageshack.us/img593/3668/dscn0246.jpg

http://img819.imageshack.us/img819/2833/dscn0248j.jpg

http://img573.imageshack.us/img573/792/dscn0249v.jpg

Four sides now done.
http://img513.imageshack.us/img513/5613/dscn0251g.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

oh my that is nice!!

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Nice progress Steve Is that first pic from cabin fever?

Brian

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Yes Brian, I took that Saturday night when they kicked us out. Get that triaxle done so you can haul at the next York show.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Looks great steve! Always waiting to see more!

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

looking good as usual, Steve. Looked the vid with one of my friends (who also visit Brownsville) , he has more than 20 real machines,. A question, it looks like there to little weight in the bucket, is this only a test bucket? You had a bigger one on side of machine, is that the one that will be used??
Dan

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

That's a smaller bucket we used because I didn't see the real problem till I got home and it was two set screws on the hoist motor shaft came loose and you can't see the motor shaft spinning inside of the hoist pinion cross shaft:o. It used to be pressed on slightly. I couldn't pick the big bucket up empty:eek:. After 6yrs I guess you find these unseen problems,after all it was only the second time this has been in the dirt actually working. It's fixed now and I wish I found the problem at the show. I think I described this problem earlier.

I'll have more pictures soon on the boom point. I just cut a piece of 3.75'' round stock this morning for the point sheave. I'll be working on the cradle that holds the point sheave tonight.