CAT 374D L

[Hofabooz]

Hi

What a great model your attention to detail is amazing, thanks for sharing with us all, looking forwards to seen this progress.

Regards

Mark

[John T.]

WOW i am sooooooo jelious. such awsome work it just blows me away wow!!!!

[Hemi1966]

I got the hydraulic system up and running to test leaks and found one on the stick cylinder tubing I fix that and made a little video of the test run.
There's 7,2 kg weight on the bucket and it seems to have much more lifting capasity, all though it need lot of counter weight

http://youtu.be/M9QHtM6sdxI

[D8R]

will you manage counterweight made in alu or have to do in steel?
Good looking steps.
Guess by now that you are an expert on programing!
Dan

[Hemi1966]

Originally Posted by D8R

will you manage counterweight made in alu or have to do in steel?
Dan

I propably must put led inside
I would have never believe that this thing can have so much power, I was just lifting a full size car tire with steel rim which propably weighs around 20kg and it didn't even struggle.

[Azonic]

Finally its moving!

Not to bad with only one leak, looks very smooth in the hydraulics!

[Lil Giants]

Just one leak?! ..that's pretty good on start up. The real test will be when you're working the snott out of it for a couple hours straight, maxing the pressure constantly!

[Lil Giants]

That's a bit extreme, what do you have the pressure set to?

[Hemi1966]

Originally Posted by Lil Giants

That's a bit extreme, what do you have the pressure set to?

I'm at 22 bars now.

[elliot330]

Nice work as always Ari.

I guess it's so powerful due to the size of the rams? Am I correct in thinking that the bigger the ID of the cyclinders the more powerful they are?

What's your thoughts on the Kampfer ventil/valves?

[Hemi1966]

Originally Posted by elliot330

Nice work as always Ari.

I guess it's so powerful due to the size of the rams? Am I correct in thinking that the bigger the ID of the cyclinders the more powerful they are?

What's your thoughts on the Kampfer ventil/valves?

Yes you are right Elliot, larger diameter cylinders are more powerful.
On the down side they also need more capasity from the pump and also larger hydraulic lines.
My cylinders have 18 mm bore, so they are not that large.

I'm very pleased with the Kampfer valves so far

[izzzul]

superb work here...! really amazing to look at..again and again..

[Hemi1966]

I've been working with the counterweight and it's turn out to be nightmare to make I wish I were able to make it like Steve (ihbuilder) in one piece, but my cam program won't do 3D (I think)
I also did some welding on the counterweight with Durafix but it really does not work well when you have to brace different thicknesses together. The thinner plate tends to expand more while heating and it goes curved, and when everything cools down and shrinks, it doesn't look too good
I'm seriously thinking about buying small TIG welder, it looks like you can make very small welds with it without heating the parts too much. Been watching Reg's Kenworth 850 build and hope I can some day learn to weld that well

[JAMMER]

Ari you have nothing to be ashamed of when it comes to your work you have a talent. Ed

[RCP57]

Thanks for the ego boost! I think a TIG would serve you very well Ari. It can be a little challenging at times especially when welding two different thicknesses of material(at least for me). It would be nice for you to be able to weld together some things instead of drilling and threading for fasteners. CNC cut panels would weld together sooooo nice! Keep up the great work! This machine is awesome!

Reg

[dabears]

Ari anything can be fixed with filler and paint. your build is killer looking!!!!

[cdm]

Originally Posted by dabears

Ari anything can be fixed with filler and paint. your build is killer looking!!!!

or in that case aluminum flux, then power sand down on the belt. has like 30000psi strenght vs 2000 (at best) for filler.

given all i've seen im surprised thats all the items that didnt come out right. you are way better than me thats for sure

[Madda]

Ari, great job there!

Maybe you should get better CAM? Also for that one part, why not try a demo of some powerful program? You could get the part done even if you don't buy the 10k per year CAM system Just some thoughts

That shiny aluminium looks so good, maybe you don't paint it?

[ihbuilder]

Ari , what cam are you using ? I had a few issues at 1st but the more I use it the better I get .

[Hemi1966]

Originally Posted by ihbuilder

Ari , what cam are you using ? I had a few issues at 1st but the more I use it the better I get .

I'm using this: http://www.industryarea.com/Metal-wo...catalogue.html
It's very simple to use but it has it's limitations

I did some plumbing work