1/10 Liebherr Excavator R 984 Litronic

[Lil Giants]

Great to see you back it Markus.

Nifty work on the pin lock mechanism.

[DADSGARAGE]

Just went through this thread again and must say this is an amazing build, all the details are astounding!! WOW!! Really like the scale too...looking forward to seeing more pics!! Keep up the top notch workmanship!!!
KP

[Markus K.]

Next I had to improve the pipe holder for the bucket cylinder. I desoldered the brass holder and used a piece of steel. Screws also in M1.6, using a 1.3mm Drill (~ 50 thou) in the brass pieces.





Pipeclamps, waterjet cut, then separated and drilled with a drill jig





And the whole assembly

[filippog]

Hi Markus,

i gave a look to your project and it is very good. I am trying to build a cat 385 CL and i have one question for you. Where did you buy the hydraulic distributors: I am looking for open centers distributors, I am using a Marzocchi pump 0,32 cc/rev.
Thanks a lot.
Filippo

[Markus K.]

Hello Filippo, i bought the Valve´s in a small shop in Germany. Unfortunately he don´t support an online shop.
Did you already check the Premacon Shop?

[Stefan]

Hello Markus,
for some regrettable reason your build has evolved under my radar all the time until now although we are posting in the same forum section. I´ve just read through the complete thread and after having wiped off the drool from the keyboard I can just conclude that I lack the proper words for describing my amazement and awe.

I just wanted to ask you if the waterjet cutting service you used has an online presence (like laser cutting by CutWorks)?

Thanks for letting us share,
Stefan

[Markus K.]

Hello Stefan,

thank you for your comment.

Those parts are "swissmade" www.waterjet.ch/de. They were just fabricated within a bigger order from another modelbuilder. He did all the communication with this company. But they already have an upload possibility, so I think you can place your Order online.

Markus

[filippog]

Hallo Markus, yes I did check Premacon, they are sellin Jung valves if i am not wrong, but i believe they are not with open centers. the only open centers i found are from Meinhard from Germany and he does not support on line shop and as far as I know the delivery is very long. Thanks for info.
Filippo

[Lil Giants]

Originally Posted by filippog

Hallo Markus, yes I did check Premacon, they are sellin Jung valves if i am not wrong, but i believe they are not with open centers. the only open centers i found are from Meinhard from Germany and he does not support on line shop and as far as I know the delivery is very long. Thanks for info.
Filippo

The Premacon valves are the Meinhardt design made in steel by? ...is it Jung? Why the need to have them made in steel is beyond me.

All of Fumotec's valves come from Meinhardt.

[calum_scania]

Originally Posted by Lil Giants

The Premacon valves are the Meinhardt design made in steel by? ...is it Jung? Why the need to have them made in steel is beyond me.

All of Fumotec's valves come from Meinhardt.

Joe I ordered valves from Premacon and they are the exact same as fumotec supply but made of steel. My reasoning was to add a little extra weight to the machine

Calum

[Markus K.]

Hi folks,

yes, I´m using Meinhardt Valves (the big Mega Blocks - i´ve to handle about 2 liters per minute). He don´t support an online shop and he makes not as many as he could sell. Because he don´t need to, it´s not his business, it´s his hobby.
Premacon Valves are fabricated by Jung Fluid. But I can´t tell wether those are open or closed center. I simply would ask premacon via mail.

[sinkMe]

I have valves from Premacon and Fumotec. They are exactly the same... in steel, with closed center.

[filippog]

Hi everybody,

Premacon valves are closed center, i have just received info from them.

[sinkMe]

Originally Posted by filippog

Hi everybody,

Premacon valves are closed center, i have just received info from them.

.. as I mention in the post above

[Markus K.]

by the way, why do you need open center valves? You might run into problems, when using two different motions at once.
And you simply can "simulate" an open center valve by using an additional closed center. You just have to mix it to your working valves in that way, that it opens just in the moment when you don´t use the hydraulic.

[sinkMe]

Originally Posted by Markus K.

by the way, why do you need open center valves? You might run into problems, when using two different motions at once.
And you simply can "simulate" an open center valve by using an additional closed center. You just have to mix it to your working valves in that way, that it opens just in the moment when you don´t use the hydraulic.

Like loadsensing

http://www.fumotec.de/englisch/detai...sing/index.php