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  #1  
Old 10-29-2012, 01:06 PM
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Default Re: CAT 374D L
Everything is looking like it's coming together nicely. As far as the track width; It would depend on what the machine is going to be working on. Narrow tracks shorter frames for hard rock where no flotation is needed.
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Old 10-29-2012, 01:13 PM
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Default Re: CAT 374D L
I Know the 385 ( which I'm building (2)) are 900mm (36")and 750mm (30") I'm making my shoes @ 64.25mm x about 19-20 mm .75" . I read somewhere that the 390 is just a renumbered 385 with a few added HP , etc
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Old 11-10-2012, 08:31 AM
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Default Re: CAT 374D L
I started to make the cylinders





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Old 10-28-2012, 06:33 PM
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Default Re: CAT 374D L
Outstanding job!!
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Old 11-10-2012, 08:56 AM
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Default Re: CAT 374D L
That looks very nice!

I would go for a little narrower track pads, other then that its a piece of art!
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Old 11-10-2012, 09:25 AM
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That looks very nice!

I would go for a little narrower track pads, other then that its a piece of art!
I've come to that conclusion too, I will make them slightly narrower
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Old 11-10-2012, 11:32 AM
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I've come to that conclusion too, I will make them slightly narrower
Yea, to bad you have to go thru all those pads again! Will be worth it though i think!
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Old 11-10-2012, 11:48 AM
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Default Re: CAT 374D L
This machine is freakin awesome very very good skill you have I work on These machines and watching this build is great
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Old 11-10-2012, 03:15 PM
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Default Re: CAT 374D L
Looks beautiful!

Kerst
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Old 11-10-2012, 09:16 PM
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Default Re: CAT 374D L
Beautiful job of the cyls Ari. Is that stainless steel for the pushrod?
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Old 11-11-2012, 04:10 AM
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Beautiful job of the cyls Ari. Is that stainless steel for the pushrod?
Yep, it's 1.4305 grade stainless.
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Old 11-17-2012, 05:30 AM
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Default Re: CAT 374D L
Got the rest of the cylinders done







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Old 11-18-2012, 06:16 AM
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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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  #14  
Old 11-18-2012, 09:21 AM
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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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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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Old 11-19-2012, 11:04 AM
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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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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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Old 11-19-2012, 11:07 AM
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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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Old 11-24-2012, 09:37 AM
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Default Re: CAT 374D L
Made some plumbing today



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  #20  
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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