Re: KOMATSU Excavator from Malaysia
 

Hello Azizul! Thanks for the reply and I'll be in touch with you soon I just need to find out how to send private mesage first...:confused: I need a little time to get used to the forum that's all. About the pressure, you shoud consider that any over pressure is waste as you'll put you equipment components fighting against each other. You will end up wasting lots of anergy that you dont have to. About you trying bigger pump, I believe you already have a beast in there, make sure your lines have the capacity for that much flow+ you dont want The excavator to be too fast, it wont look good, just like mine is too slow.

Re: KOMATSU Excavator from Malaysia
 

Thank's for the reply:D There are alot of full sized machine's with
"extension cord's" If it make's the run time and enjoyment "more better":cool:
Go for it!

Cheer's, Neil.

Re: KOMATSU Excavator from Malaysia
 

Very soon, this will be my main cabin...pending powder coating and final decal...
http://4.bp.blogspot.com/-VX-uRU-rZI...N01_view_a.jpg
http://4.bp.blogspot.com/-y9xZOrWATI...404_132603.jpg
http://3.bp.blogspot.com/-HLyyOfhSrv...N01_view_c.jpg
http://1.bp.blogspot.com/-zWVWu-sHzW...404_132630.jpg

Re: KOMATSU Excavator from Malaysia
 

Setti,
If not mistaken, my industrial valve block allows me to auto divert/auto cut the hyd overpressure as there is a neutral line with-in the valve block itself that function to safeguard the valve, normally <5bar pressure only when any/all cylinders are in idle/holding state, without losing its position . And I make full control of throttle valve/aka hyd pump motor as to suit different force/job level....aka the speed for the movement..hope everything is fine with my design..

PS: I'm using 6mm X 4mm nylon tube for hyd lines, with gasket fitted compression screw nuts.

Re: KOMATSU Excavator from Malaysia
 

Wow! every day I like it more and more!! Thanks for let me know about the overpressure valve, I was worrying about the "overpower" and your safety.

Re: KOMATSU Excavator from Malaysia
 

pic of main cabin with some other details (step ladder and side railing)
http://1.bp.blogspot.com/-4r65PiZg3N...405_143459.jpg
complete with exhaust pipe and hooks for the counter weight..
http://1.bp.blogspot.com/-5xOMN0-HG6...405_143521.jpg
Cabin length is about 20-22inches..
http://2.bp.blogspot.com/-e8LtaX83Rh...405_144034.jpg
And this is the real ones, will copy exact the DECALs and details as much as possible..
http://3.bp.blogspot.com/-4oOjr5r9gV...1600/PC650.jpg

Re: KOMATSU Excavator from Malaysia
 

Looking good Azizul, great to see you making progress on this once again. :cool:

Your home built radio looks interesting, but there's something to be said for the new computer radios & their ability for fine tuning, especially the hyds! Looking at your video, can you feather the stick movement so the arms/bucket move a little slower - smoothly?

Re: KOMATSU Excavator from Malaysia
 

Thx Joe, my radios are cheap ones (yet to use the programmable one), so i've to mod my servo linkages as to get the best slowest swing of the servo horn. At same time, there's extension to my radio sticks as to double the length, thus reducing the swing. That will help to smoothen the hyd flow also. Need to master my skill to handle this beast.. give me a little more time to test..

Btw, your video is superb! brilliant work and achievement. like it so much, i'll follow later.:o

Re: KOMATSU Excavator from Malaysia
 

Hello Izizul! I found this micro hydraulic motors and came to my mind that you should take a look... With the pump that you have you could use them to power the tracks hydraulically
http://hydroleduc.com/en/microhydraulics

Re: KOMATSU Excavator from Malaysia
 

I forgot to say, they're really small but powerfull;:D

Re: KOMATSU Excavator from Malaysia
 

speechless, thats huge and insane build.

Re: KOMATSU Excavator from Malaysia
 

Thx, I've been looking at this style of hyd motor months already, I'd sent them some inquiry about my system and waiting for their recommendation. Wait and see if the can suit my req, love to have it.

Rgds,
Azizul.

Re: KOMATSU Excavator from Malaysia
 

this is the first picture when the main cabin meets the rest of its friends..yet to put all the decals...
http://3.bp.blogspot.com/-ZRlYx749xw...09042012_2.jpg
while the second unit is coming fast...pls note i'd colored the track shoe to black as to mimic the real ones..
http://3.bp.blogspot.com/-VwXL0U6mSD...0/10042012.jpg

Re: KOMATSU Excavator from Malaysia
 

Well done!!!! Is the second one the one for me!!!! :D:D:D
Izizul, I spoke with the company that makes the micro hydraulic motor that I told you and they're insane! They only sell 5 at the time and the price is US 5'000.00 each!!!! :eek:.
Do you know any one that has it for reasonable price? Thanks! Setti

Re: KOMATSU Excavator from Malaysia
 

That is thing is hugh. Looks like it would move alot dirt. I really like it

Re: KOMATSU Excavator from Malaysia
 

Hi, it's very expensive indeed..:confused:!! more than half of my entire cost of this build :eek: I'll still looking the industrial hyd motor, but so far it's huge, yet to find the small one. Will let you know...meantime..it's for me to get use to the controls..never operate the real ones..so need time here..will snap more video later..

Re: KOMATSU Excavator from Malaysia
 

Hi there, not so sure how big it is because i dont have one to compare with, but compared to DEERE JD850 (scale 1:14), mine KOMATSU PC650 is 1:10 scale, will be slightly bigger in think, I myself make my own comparison based on what on the website:
http://4.bp.blogspot.com/-EXz9OO_8GG...io+vs+Mine.JPG
You can further check my blog here as i keep all the pictures and progress there (http://my-rc-page.blogspot.com)

Re: KOMATSU Excavator from Malaysia
 

hi...how much you think will cost u to built it your self,i want one too

Re: KOMATSU Excavator from Malaysia
 

erm..i've lost tracking of the cost by now, i can say between USD6-8k maybe..not sure how to compare to the market, because mine is customized using industrial gadgets like the hyd pump, valve, hose + RX/TX/Batteries..sorry dun hv exact figure for you..good luck to you..dont forget to share pic too..

Re: KOMATSU Excavator from Malaysia
 

I dont have much update right now except spending time on 2nd excavator, all bodyworks is done and now waiting for electronics parts. Refer below.
http://2.bp.blogspot.com/-qxsUFsru2v...0/29042012.jpg
And below is second video shootout, still in the middle of mastering the stick moves, need more time here definately..!
http://www.youtube.com/watch?feature...&v=l_KA10X4dl4

And my next project will be my favorite dump truck, it's a KOMATSU KAC960E below, will start a new thread when the project kicks in later, right now still on drawing papers
http://1.bp.blogspot.com/-BzZnSD_Jz-...SU+KAC960E.bmp
http://4.bp.blogspot.com/-iZxL1YJ-Oj...40/KAC960E.bmp

Refer my blog for more pictures
http://my-rc-page.blogspot.com/