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#1
09-24-2015, 08:46 PM
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Re: Great Dane excavating co.
On the other hand at least it wasn't the big dog, (Great Dane). That would have been a torrential downpour!!!! Total flood reclamation project!!!
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#3
09-24-2015, 09:19 PM
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Re: Great Dane excavating co.
 It's been a while since the zoo has had an appearance here!! All three "big" dogs!! The little shyt thinks he is a big dog, they are waiting for dinner , or my leg!?!
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#4
09-28-2015, 10:20 PM
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Re: Great Dane excavating co.
Quote:
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#6
09-24-2015, 10:53 PM
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Re: Great Dane excavating co.
reverse would have been a bad idea. LOL
we have two rotties and a british bull dog, lets just say the bigger the dog the bigger the brain. my wife may disagree due to the fact that the bull dog is hers but heres some examples. example 1: my rotties have never run into a closed ranch slider door... example 2: when leaping out of car my rotties have never landed on their face... cheers andy
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#7
09-24-2015, 11:58 PM
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Re: Great Dane excavating co.
Quote:
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#8
09-25-2015, 08:51 PM
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Re: Great Dane excavating co.
Quote:
truck ride so opened the door on my k5 blazer and jumped right into the quarter panel head folded under his chest and flat out cold.
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#9
09-27-2015, 01:31 PM
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Re: Great Dane excavating co.
Quote:
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#10
09-25-2015, 07:07 PM
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Re: Great Dane excavating co.
Gonna have some weekend work to do so I figure I better eat healthy,
 This is the little river hostel,   Track I've been working on  And what every Riverlot needs , a good stocked toy box!! 
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#12
09-27-2015, 01:34 PM
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Re: Great Dane excavating co.
Almost done with another access road. Goes from top of lower bank to river. The pic doesn't look steep but the steps in foreground show steepness of bank. Lots of finger roots to bust, had to use the small hatchet on some.
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#13
09-27-2015, 01:38 PM
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Re: Great Dane excavating co.
  And shortly after running excavator a pin broke in gear head on tracks. Was using excavator to chew through roots on bank then using dozer to push level road surface. The original drive system for the 4200 is a lot slower than the "upgrade" system but stronger in my opinion. Not worth the $300 if anyone interested.
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#15
09-27-2015, 02:32 PM
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Re: Great Dane excavating co.
Lmao
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#16
10-02-2015, 05:08 PM
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Re: Great Dane excavating co.
   Ok so tires were a limiting factor in what size haul truck can be made, and I am also limited if I can't figure out how to make telescopic cylinders. I'm making on out of brass first. Figure I can solder ends easier than brazing stainless. And brass is way easier to machine for me than stainless. If I can make these work I'm going to try and make the finished cylinders out of 416 stainless and solder/braze parts together. Pics above are a start, I have to make a small hole in first stage to allow oil to fill inner chamber on stage two. So these are in theory going to be very similar to the real deal multi stage hydraulic cylinders.
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#17
10-02-2015, 05:40 PM
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Re: Great Dane excavating co.
Cooper your drawing of the cylinder shows a lower and an upper port why? If you are going for a telescoping cylinder you only need one port. As for your cylinders you don't need a hole on the stage bottom you just need the tube and the seals to keep the oil in the cylinders. Your picture shows a bleeder on the top stage and that is good but not really need for what you are going to do. You will need o rings to seal the stages and to be guides. Hope I have helped it has always been my intentions to build a multi stage cylinder but that is as far as I got. Ed
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#18
10-02-2015, 05:56 PM
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Re: Great Dane excavating co.
Yes, you are right, the smaller rod is hollow because that's what I had on hand. The final one will not be hollow. And the piston part has two orings, only one will be there on final, I made the second one for centering purposes at the other end. (Just for initial set up and experimenting. ) the drawling was just a image I found off the net, it is not what I'm planing on final. I'm planing on using orings top and bottom which will center piston/shafts anyway. The way I'm making them is cutting/milling inner oring pistons and outter pistons (one on each end) and soldering them on. Well basically soldering on chunks of brass then machining them down to size. The hole I'm referring to is to allow oil to enter on retraction and exit on extension between cylinder stages. If not there it will lock and not move. I've been wanting to try building some of these for some time now and am finally getting around to it. Just figured I would make a trial one to see what pitfalls scale parts have. And once I get an working idea of what to do (and what not to do) I'll be able to slim down as much as possible and make them from stainless. ,,,,, I think
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#19
10-03-2015, 03:18 PM
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Re: Great Dane excavating co.
Joe it's a French bulldog! My wife gets mad at me when I call him a little pug pig!! Lol!!!
  Some more done, I got them working without internal locking. Have a small hole right above each piston to allow oil to fill/empty chambers. After looking at truck cylinders I may have to have the smallest rod hollow as they are mounted inverted and oil pumps from bottom. Some more creative work to be done.
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#20
10-03-2015, 03:27 PM
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Re: Great Dane excavating co.
I'm using 1/16" size orings, if I use smaller cross section orings I would be able to get cylinder wall thickness thinner. Only 1/32" oring thickness McMaster doesn't have in those sizes. Small thickness metric orings available but I don't think the cylinders this size will look too out of place on a machine such at a 777 or 773 haul truck. And they are only visible when dumping. I'm more into function than exact scale anyway. And I'm not sure how easily I can machine the inner oring grooves on stainless. You machinist guys,, would some soft steel be just as good for cylinders? Easier for me to machine and I imagine a good polishing would last on a oil filled cylinder. I just have always used stainless on hydraulic rods.
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