Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Very nice progress Steve the spokes came out real nice.
Are the 19 sheaves for the suspension ropes all the same or a lot of different sizes ?
How is the flu ?? ( over here it does not feel very pleasant )

Eef

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

They are all the same 20''dia -1.25''scale there are two more called deflection sheaves that are mounted on a small A frame 3/4 up the boom about the same dia. only they mesh together,one with a male flange and the other a female flange. They run on a shaft and can slide back and forth about 3/4'' with the cable swaying and following the spooling and unspooling. I think Lorenzo's Page dragline has a similar setup but closer to the house. I need to get the delection sheaves done, attach the wood planks on the tip and fasten two truck tires (I'm using Lego tires like on Smallhaul's Tonka)
to keep the cable from rubbing the lattace. I noticed some rubbing but nothing major from the Cabin Fever run.
As far as the Flu, I'm only in one day with the Amoxicillin. but getting a little better.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

ya need to chill out and take care of yourself and get better then start buildin again lol hope you get better soon then back to buildin

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I got the chance to see the boom for this masterpiece in person at the east coast show and it is just unbelievable the detail and craftsmanship are second to none good job Steve.

Travis

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Nice progress Steve. I hope you are feeling better soon.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Been working very slow lately. Thought I'd post a couple from this week.
Setting up boom to mill the chords to proper length
http://img402.imageshack.us/img402/6025/dscn0309u.jpg

Now I need to make plates and attach to the ends so the channel that holds the front pillow block on can be mounted.
That wood block I used temporally for the point sheave came in handy to hold everything in alignment.
http://img62.imageshack.us/img62/7028/dscn0310uj.jpg

I miscounted the quantity of 1.25'' sheaves needed. I still need about 5 more and 4- 1''dia.
This is the first side then I will flip them over locate to one of the holes and continue milling the pockets.
http://img7.imageshack.us/img7/9991/dscn0311s.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Looking good Steve
See that you are running production on the sheaves.
You are going fast.

Eef

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Interesting clamp configuration :).
Did you turn the small sheaves manually or via cnc?

BTW: did you get my last pm?

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Eef, I want to get these done. I want to move on to other things on the boom. Pretty boring on the milling operation. It takes 9min.ea to drill the 6 holes and pocket the spokes for the 24pcs. This evening I'm going to program the other side.Probably take close to 15min. each. I could probably go faster but risk breaking my 3/32''carbide endmill. I still need 6 more sheaves that are different size.

Lorenzo, I made each one on my lathe manually:bore,groove,part off, face to thickness.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Oh, very time consuming and boring work. I don't really like those kind of work.
But never the less they look like if they are done by cnc. Keep up the good work.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Finally got this set done. This is enough to reeve the boom but I still need a a couple smaller to run down to the boom hoist.
http://img268.imageshack.us/img268/3666/dscn0316i.jpg

Collet fixture to hold in mill
http://img863.imageshack.us/img863/6933/dscn0317.jpg

view showing groove for 1/16'' cable
http://img833.imageshack.us/img833/9201/dscn0318h.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

they look beautiful!
Are you going to use ball bearings?

kerst

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Nice wheels, have to get a CNC machine sometime. Was a little surpriced when visiting the show in Germany last november, there was manufactors showing CNC equipment, had never thought about that modeler should be those machines. Now when looking here at the forum I see more and more modeler using those.
Dan

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Nice looking work as always.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Hey Steve, you mentioned a while back, about changing the toggle switch's on your controlbox? Have you seen the joystick controler's in the Automation direct catalog?
http://www.automationdirect.com/adc/...etal/Joysticks I'm planning on using these for my grader project
(1:1) And alot less than what Grainger want's for sqaure d or telemechanique
Later, Neil#2 aka doodlebug.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Thanks All
No bearings Kerst, These will run on bronze bushings. They don't rotate enough to ever need ball beraings. The deflection sheaves will run on a bushing too. Those are next to machine.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Neal, Thanks for the link. This is what I was talking about, I was thinking of taking the guts out of a DX6 or 7 and installing them in these controls from a real machine. I still need swing pedals though. I could eliminate the radio all together and go thru a slip ring with more conductors also.
http://img212.imageshack.us/img212/1...odel009mv7.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

hmmm, for short range and the room you have, what about a pair of Arduino boards with Xbee wireless on their backs. Just set up to to a few analog and digital IO's???

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

That control setup would be pretty cool Steve! is that a old cat pedal I spy in the background? I got a bunch of old pedal tractors, I'm trying to sell 'em. Keep up the good work!

Brian

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Hey Steve, I'll keep my eye's open next week, for pot. style controller's. Let me know if you need info on hall effect or encoder style joystick's.
More idea's http://www.jrmerritt.com/ Later, Neil#2 aka doodlebug.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Jeff, You got me lost. Is this like bluetooth?. I don't know anything about what you talked about but I'm aware it could be done. One of my kids said why not use a playstation 2 controller and I've seen a interface that could use one but I don't want to experiment on new things yet.

Yes Brian That's a D4 pedal tractor. I also have a small ''H'' ,560, 86 series, and a AC 7080 buried in my garage attic.
Neil, I have atleast a dozon different kinds of joy sticks, Master switches from all kinds of stuff I bought on ebay over the years. My design has changed several times and the radio control seemed to be the easiest (Less wires).

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Yes,the Xbee wireless is on a bluetooth frequency, some of the more powerful ones have a 1 mile LOS range.

The Arduino board is a computer programmed logic controller board with (depending on model) several Analog I/O's and Several Digital I/O's as well as a few can be configured as PWM (like servo commands). I've been toying with the idea of making my own Radios if I ever get around to building my own large scale RC equipment. I believe you can even use them with a wireless PS3 controller as well But in your case I would hook up the real controls.

I got this book several weeks ago, is well written and easily understandable. I think if you can handle G-code for the cnc you could handle programming an Arduino board (2 in this case). http://www.sparkfun.com/products/9301

Here's a vid of them.
http://www.youtube.com/watch?v=KxtI7_UQGTw

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Now your talking. That looks very interesting. That pot demo is basically what starts my motor drives. All you need is a variable+10vdc and -10vdc to make the motor go forward or reverse. I will have to look into that in the future. What about interference with similar controls operating nearby or do these work like the 2.4ghz radios?

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I haven't gotten too much into the Xbee cards yet (the wireless portion of the combo), but I do believe its like the 2.4ghz radios in that they have to be bonded together and are on a code to minimize interference.

I would highly suggest buying the arduino book listed above and taking time to read it, if it looks like something you can handle than start experimenting. The plus side of the Arduino board in the model is that it can be used like a little PLC to monitor and adjust things without you having to worry about it, like maybe limit switches or temp sensors to protect something.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

That would be cool to run it with full scale controls. It would also be neat to mount a camera on the house and a monitor in front of the controls to run it.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Yeah, these little Arduino boards can also be set up with real time feedback as well as they communicate both ways. So things like winch motor temp or something could be monitored at the controls.

I did see some small cams and screen on arduino someplace but not sure about over wireless as the data flow might have been too much for them, but the possibilities are there.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Remember me talking at Brownsville last summer in the 90deg heat? I was thinking about building a cab for the 1:1 controls with air conditioning and sit inside so nobody talks to the operator distracting him so he don't screw up the drag:D

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

HA!! I bet you would get more interruptions in the full sized cab. People would want to see the controls and ask what you were doing in there!! Best bet might be to just wear ear plugs:)

Lynn

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Heck If I made it big enough and like the real ones there's usually a chair for the oiler and I could just draw the shades and sleep in there instead of my truck or tent.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Yes I do, it was REALLY hot. It was unbelievably hot in the cab of Howards Ensley Drag Line, which is probably why he was happy to let me run it, lol.

Ha, now... I don't know anybody that screws up when talking while operating?:o:D

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Hey Steve, sound's like you have it covered for joystick's. Have you thought about having a camera inside the cab, and tv monitor outside. Let them see and no interuptus:eek:
Pug's, thank's for the new link, hadn't heard of ps3 controler's being used yet:D
Later, Neil#2 aka doodlebug.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Yes I would like to put a camera in the cab. That would make it more challenging to operate. I just need to work a few more hundred hours to get to that point:cool:

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Well, I finally got the tip soldered together. Another milestone crossed. I counted 135pcs that were made for this section of boom excluding about 150 bolts. I hope to get on the safety rope mountings soon. There's also a set of deflection sheaves that help guide the hoist rope I talked about before that are made but I need to design the channels that they mount to.

End Plates
http://img98.imageshack.us/img98/3484/dscn0337j.jpg

Underside
http://img683.imageshack.us/img683/5245/dscn0338i.jpg

Inside of the rear pillow block
http://img846.imageshack.us/img846/4685/dscn0339.jpg

Soldered
http://img36.imageshack.us/img36/2632/dscn0341u.jpg

Last of the lattice that needed installed
http://img713.imageshack.us/img713/1594/dscn0345d.jpg

Top section
http://img577.imageshack.us/img577/1347/dscn0346t.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Ya wanta buy any more??:D:D

Brian

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Beautiful!

Kerst

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I doubt it Brian. I don't have any little kids anymore. Now they want diesel pick up trucks.

Thanks, Kerst, I got tired of starring at all the parts so the last two evenings I just had to put it together. I need to learn how to make hand rail and the walkway up the left side now. How will the oilier get up there to grease the point.:p

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

looks awsome i am still speechless of all the intricit details amaizing keep up the awsome work lol now looks like theres a euclid truck gonna be around to load and i can shove the load around

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Almost done?? Hand rails and walkways should be no problem for you. Just take your time:rolleyes::rolleyes:

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I'm never done with anything Lynn,:rolleyes: I'm not sure how high the hand rail is, 42''? A friend stopped the other day and said he had some of the wood from trailer flooring and he could cut me some thin planking for my walkways. I think that stuff is Mahogany? That will look nice. Second choice would be Cherry because of the fine grain. I've spent roughly 7 months of spare time on this boom so far.I can't wait to get out and dig again, now this much of the boom is done it will be more realistic over the temporary boom. I need to get out to the real machine now the weather is getting nicer. I'll be able to get more sizes from the house and the A frame bracing.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Very nice work as always steve!! Will the boom be painted?