Model Boat Mayhem
Mess Deck: General Section => Other Hobbies and Interests => Topic started by: Tom_DK on June 19, 2008, 10:22:02 pm
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My Leimbach Excavator
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missing something here - the connection to boats is????
oops - sorry - just noticed its in the 'other hobbies' section. doh!
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missing something here - the connection to boats is????
oops - sorry - just noticed its in the 'other hobbies' section. doh!
Haha, happens .
But here are some pic from my other Boats then O0
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Come on then, tell us about the Excavator, it looks like a working hydraulic model!?
Nice Traxxas Villain, is it as fast as this one?http://www.youtube.com/watch?v=Pu5PiTFuH2c&feature=related
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Yes the excavator uses a hydraulic system. The cogwhell pump is driven by a 500 motor and sets all components to 10 bar of hydraulic pressure. There are 3 hydraulic gliders to lift and lower the arm, and they got some nice ability to lift and dig in the sand.
The top of the excavator can turn cw or ccw in 360° angels all controlled by a ESC. Both driving belts are driven by two independent speed 500 motors through 2 ESC.
So the control and handling of the model is pretty much the same as of 1:1 excavator.
All is made in aluminium and with a million screws.
Battery is 10 x 1.2/3300 mAh (12V) which makes the model operational at aprox. 1-3 hours.
To controll the hydraulic movements, there is a tiny valve block with 3 mikro servos installed. This enables a linear movement of the gliders at any speed controlled by the servos. The hydraulic pump runs on same speed and pressure all the time, but I installed a electronic switch inside to stop the pump when hydraulic movements are not needed. Just to increase the lifetime of the pump.
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That is really nice , any chance of a few more pictures, and have you any pictures of the internals.
Hs93
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Next question - where did you get the hydraulic pump, actuators valve block etc from?
Ian
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Question
With hydraulics at 10 bar is there any kind of safety circuit if it bursts a pipe?
Brian
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Hi
Didn't make any internal photo as all is so compact that you can't see anything in detail anyway.
The pump is here :
http://www.leimbach-modellbau.de/HydrPump.html
Valves here :
http://www.leimbach-modellbau.de/Steuerventile.html
Actuators here :
http://www.leimbach-modellbau.de/Zylinder.html
Its all included in the kit:
http://www.leimbach-modellbau.de/Kettenbagger.html
Prises are here:
http://www.leimbach-modellbau.de/phppreisliste.php
only 3.350 Eur for the excavator, thats a offer I couldn't resist :D
There are not any safety cirsuit if a pipe burst. It will just empty the hydraulic oil somewhere until the pump runs empty. I did try that once :embarrassed:
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Found some old photos from the build of my model
:)
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its stunning. Can you buy these in the uk?
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i dont know if this is the same , but i know there is a german kit manufacturer of hydraulic cranes/ excavators...
amazing bits of work, i am sure tom will enlighten us in time !
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One of those or a derivative ie crane on a tug , barge (or even a Springer !) would be terrific, nice work TomDK :-))
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Lovely model,but 3 grand english money,bit pricey