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  #201  
Old 11-18-2012, 06:16 AM
D8R D8R is offline
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Default Re: CAT 374D L

Ari, nice looking cylinders. Du you solder the ends or are they glued to the tubing?
What pressure will you use in the system?
Dan
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  #202  
Old 11-18-2012, 09:21 AM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

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Originally Posted by D8R View Post
Ari, nice looking cylinders. Du you solder the ends or are they glued to the tubing?
What pressure will you use in the system?
Dan
The pressure will probably be 20 bar or more, depending when my cylinders start to leak
Cylinders will be silver brazed, here's one that's been brazed:

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  #203  
Old 11-18-2012, 09:27 AM
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Default Re: CAT 374D L

wow you just keep out doing your self. what will hold the stick cylinder on a snap ring on the out side? are the bolts for the hose adapters end real or just on there and brazed on? thanks for showing us your work.
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  #204  
Old 11-18-2012, 06:06 PM
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Default Re: CAT 374D L

So what's the bore of the cyls and what size (ID) plumbing do you intend to use?
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  #205  
Old 11-19-2012, 11:04 AM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

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Originally Posted by mog View Post
wow you just keep out doing your self. what will hold the stick cylinder on a snap ring on the out side? are the bolts for the hose adapters end real or just on there and brazed on? thanks for showing us your work.
The stick cylinder and all the others will be attach with flanged pins that are bolted to stick.
Those M1.2 bolts are just for decoration, those hose adapters are brazed.
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  #206  
Old 11-19-2012, 11:07 AM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

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So what's the bore of the cyls and what size (ID) plumbing do you intend to use?
Cylinder bore is 18 mm and hose ID is 3 mm.
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  #207  
Old 11-24-2012, 09:37 AM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

Made some plumbing today



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  #208  
Old 11-24-2012, 09:41 AM
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Default Re: CAT 374D L

Very neat!


What do you use for brazing?
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  #209  
Old 11-24-2012, 09:48 AM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

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Very neat!


What do you use for brazing?
Mostly silver.
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  #210  
Old 11-24-2012, 12:40 PM
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Default Re: CAT 374D L

That brass and soldering work is phenominal!!! I sure wish I could solder that clean in that small of a fitting with brass. Can't wait to see this machine operating.

Keep it up.

Tyler
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  #211  
Old 11-24-2012, 01:40 PM
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Default Re: CAT 374D L

Ari every time I look at this thread my Jaw drops ..You are really setting the Bar really high now ..Hats off so far a perfect peice of art
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  #212  
Old 12-07-2012, 11:51 PM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

Got the boom boxed, and cylinders finished. Now I should get my hydraulic pump up and running to see if there's any leaks on the cylinder tubing.











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  #213  
Old 12-08-2012, 01:25 AM
Azonic Azonic is offline
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Default Re: CAT 374D L

Stunning!! Cant say more then that it looks fantastic, great job on the cylinders, hope they are leak free!
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  #214  
Old 12-08-2012, 05:09 AM
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Default Re: CAT 374D L

Beautiful job Ari! I'm sure that with your skills there will be no leaks.
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  #215  
Old 12-09-2012, 01:45 AM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

I machined the tracks narrower, they are now 72 mm wide which is around 1 meter wide in full scale.
For my eyes they look more realistic now.
Here's a picture of the left track still wide.


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  #216  
Old 12-09-2012, 01:56 AM
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Default Re: CAT 374D L

Spot on! That looks so much better!
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  #217  
Old 12-09-2012, 03:13 AM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

Here's both tracks done

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  #218  
Old 12-09-2012, 03:21 AM
aussie mack aussie mack is offline
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Talking Re: CAT 374D L

looks great hemi loving the detail ur putting into it
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  #219  
Old 12-12-2012, 10:00 AM
D8R D8R is offline
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Default Re: CAT 374D L

Ari, looks better with the narrower tracks, the bigger machine, the narrower tracks it looks like.
This pic from a Swedish forum


What size is the L-connector on right side, M5?



Like your small connections (brazed) to cylinders, wish I had thought a little more about how to make those earlier. What´s the size of cylinders (good to know if I will build another hydaulic model, easier to find brass tubings).
Dan
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  #220  
Old 12-12-2012, 04:29 PM
super2222 super2222 is offline
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Default Re: CAT 374D L

nice work
i would like to have more information on how did you do the track pad
Steve
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