Page 631 Walking Dragline
 

Hi there,

my name is Lorenz. Some of you might know me from the Garden. I don't know if the old thread will be fully restored but I'll try to post some of the old pics and resume it with the new ones. But at the moment there will be only a few old ones because there is nothing new to post.

http://i28.photobucket.com/albums/c225/tacbob/Qlb1.jpg

http://i28.photobucket.com/albums/c2..._VIDEO_019.jpg

http://i28.photobucket.com/albums/c2...amtmitBein.jpg

Re: Page 631 Walking Dragline
 

Glad you found your way. I was in somewhat of a panic mode when the Garden was plowed under:mad:

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Thx Steve :). I didn't realized it because I was on vacation with no internet. Lou told me that the Garden is history and I was really surprised. He also gave me this link.

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awesome! I can hear the draglines at my back door now :P my office is getting moved soon because they are getting too close. A smaller crawler type is going to be digging up ground about 50 feet from where i am typing this by the end of next year for sure.!

in the background is Shand power station @ Estevan, Saskatchewan, Canada
http://i15.photobucket.com/albums/a3...s/IMG_2208.jpg

Re: Page 631 Walking Dragline
 

Hello Lorenz, :wave:

...is this thing not done yet?!

The 1st pic I had not seen before, it shows a great perspective to it's size! :thumbs up:

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Welcome Lorenz.

The Page looks great!

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Just saw the video of your dragline walking. Absolutely great! Was at a coal mine today in western Kentucky where they are about finished assembling two walkers - not sure of make or model but appear to be about 45 yard capacity. Keep up the good work!

Ken

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Lorenzo I am glad you found us and I just watched the video and all I can say is amazing you are doing a fantastic job.:cool:

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Lorenzo,
Congrats on your recent article in the German Mag's Baumaschinen. While thumbing thru some r/c mags at the airport, came across your article. Just wish i could read all of the interview...lol

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Hey lorenzo-are you back to work on the page?

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Lorenzo ...... Glad to see your work displayed here - always a good piece of entertainment ....

Hey kinda funny but - at first glance of your pics I thought you had moved to a local gymnasium in order to have enough space to work on your unit ...... Still amazed at it's size.....

Great Work
Chris

Re: Page 631 Walking Dragline
 

No work done yet on the Page. But the winter is already there so it seems I'll be able to start again soon.
Was on a big fair with the Page in October in Leipzig. Was really nice although I had a major damage on preperation day. The mast was to weak and brake so the whole boom colapsed. For the fair I installed just 4 of 5 boomparts without the mast. I'll redo the mast but this time I'll try brass. I'll fix the damaged boom part but I won't change the material. The boom is thicker and much stiffer so I think it will last. If not, we'll see.

Hey Rob, many thx. Where did you read my article? Where you in Germany? It was just about how I came to this project. It described the way.

Re: Page 631 Walking Dragline
 

Hey Renz, yes i was there in November. I was in Hamburg.

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Nice build glad to see more cool pics keep them comming

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I like draglines! Cool build! Is that styrene?

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I like draklines too :). Yes that's styrene.

Hey Rob, are you visiting Germany often?

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I'm slightly back on modelling. The last 2 days I worked a bit on my lathe to turn some parts for the swing motors. I thought I'll use flywheels to get some smooth swing movement. And if all works well maybe I can swing by just tipping the stick on the radio instead of pushing it constantly.

I just put the motors almost there where they will work later

http://i28.photobucket.com/albums/c2...b/Schwenk2.jpg

http://i28.photobucket.com/albums/c2...b/Schwenk1.jpg

The flywheels are casted and purchased. I just turned them in shape.

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Do you have a gear for the tub yet?

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That is a great idea, to use flywheels for the swing. It is one of the problems of working in scale. It is very difficult to get the same smooth movements as the real machine.
i have this problem with my 4100. The swing only works smoothly when a long boom is in a horizontal position.
Kerst

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I found one that's perfect. At the moment I'm trying to get it. But it looks good.

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Many thx :).

Do you have a P&H 4100?

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After a long search I finaly found a fitting gear rim for my Page. Now I have to think about how to mount it. :confused:

http://i28.photobucket.com/albums/c2.../Zahnkranz.jpg

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Nice to see you're still with us. Why did you elect to use a internal gear? What was that gear used on?

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Hi Steve,

I'm always with you :). Thx for careing. I was doing some other modelling stuff and was trying to get this internal gear ring.

I'm still thinking about of building a rotary passage for power supply so I decided to use an internal gear rim.

I found it on the TV. It was a report about inventions. Someone was showing a rehab buggy for disabled persons with a connectible electric drive. This gear ring is screwed to the wheels and the pinion is spuring in.
I managed to find the inventor of this system and to purchase one of these internal gears from him.

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where did you manage to find that?

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I find it by searching the internet. Great invention. Isn't it?

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I was thinking about how to reduce the weight of the bucket. Today I had an idea of some weight tuning so I made alot of sparks and cut some sections out of it. I will plate the new holes with much lighter aluminium sheets.

http://i28.photobucket.com/albums/c2...ichterKbel.jpg

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Hi lorenzo-I see you are working on the page again. Why do you want a light -weight bucket? I found the heavier the bucket got the better it dug. I actually added weight to my dragline bucket.

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Hi Tom,

yes I'm doing a little on it. The bucket was to heavy. But I think it will still dig good.
I also had a mast collapse so the boom went down. The mast and one of the boom parts broke so I have to redo it. The mast this time in metal. I think the boom is strong enough so I will let it made of styrene for the first. We'll see.

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This is how it looks now. I shut the openings with aluminium sheets.

http://i28.photobucket.com/albums/c2...eschlossen.jpg

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Now you need holes so water will drain.

TEXKEN

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Yes, but only when I'll dig for gravel and similar under water.

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You didn't consider plastic sheet to make the bucket lighter yet?

So how many cubic meter did you move before the mast/boom broke?

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Hehe, good questions ;).
The plastic sheet isn't wear proof so that's why I choose alu.
Not a single one did I dig with it ;). I hope I will , some day :D.

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oh i didnt know your mast broke!! glad to see you are still alive Lorenzo!

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I'm fine, thank you :).

Did some reinforcement on the bucket.

http://i28.photobucket.com/albums/c2...erstrkung2.jpg

http://i28.photobucket.com/albums/c2...erstrkung1.jpg

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Lorenzo-your bucket is looking good! Sorry to hear about your mast failure.:( Do you have a lot of work to do to repair the boom?

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Thank you Tom :).

One boom section broke into 2 pieces. I think it's relatively easy to repair. The lower section of the mast is completely destroyed.
The mast was lighter (smaler) than the boom. The failure started on that location where the hoist rope passes through the mast. There is a big diamond shaped hole.

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It looks like a new bucket was delivered ;).

http://i28.photobucket.com/albums/c2...warzerKbel.jpg

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I've made a new spreaderbar (the old one had nearly 500gr) and changed the chains so the drag chains are longer now. Steve, what do you think, is it ok now?
I also weighted the bucket. It's 2,3Kg now. I haven't weight it before but I was told it has 4Kg. So, I would say alot of saving :).

http://i28.photobucket.com/albums/c2...preaderbar.jpg

http://i28.photobucket.com/albums/c2...gesamtneu2.jpg

http://i28.photobucket.com/albums/c2...lgesamtneu.jpg