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  #101  
Old 08-05-2012, 05:05 AM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

I started to make the lower carrier rollers. First I made the brackets (32 pcs) and now I should made the rollers (16 pcs) I wish I had a cnc lathe







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  #102  
Old 08-05-2012, 05:17 AM
Madda Madda is offline
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Default Re: CAT 374D L

Are you making these rollers with mill or lathe? I know that feeling when you have to make manually same thing for numerous times. I once drilled manually over 1500 holes...


But the build is still very cool and yet fast.

What size screws are you using there?
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  #103  
Old 08-05-2012, 06:22 AM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

Madda, those rollers will be made with lathe.
The screws are M2 steel ones. It was a quite job to make threads for all the 64 holes with three separate taps. The 2 mm tap doesn't take much to brake.
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  #104  
Old 08-08-2012, 12:27 PM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

Finally got all of the carrier rollers done including the upper ones





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  #105  
Old 08-08-2012, 12:35 PM
CAT315C CAT315C is offline
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Default Re: CAT 374D L

Hemmi1966,

A beautiful project, congratulations!!

You're doing all of it aluminum?

Thank you,

Carlos
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  #106  
Old 08-08-2012, 12:59 PM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

Quote:
Originally Posted by CAT315C View Post
Hemmi1966,

A beautiful project, congratulations!!

You're doing all of it aluminum?

Thank you,

Carlos
Pretty much yes, of course all axles and pins are steel. Also the upper frame swing bearing mechanism will be made out of steel. There will also be some brass parts in the upper frame.
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  #107  
Old 08-08-2012, 03:19 PM
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Smile Re: CAT 374D L

This is one awesome build, Ari. It's going to be heavy and durable in the end.

Great work. Another beautiful job.

- RCT
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  #108  
Old 08-08-2012, 07:32 PM
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Default Re: CAT 374D L

Wow, looks amazing, always a plasure to watch your updates!
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  #109  
Old 08-09-2012, 03:46 PM
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Default Re: CAT 374D L

Hi

Most excelent work realy look forwards to your updates.
Thanks for sharing and good luck with the build

Regards

Mark
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  #110  
Old 08-11-2012, 12:48 PM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

I started to build the undercarriage x-frame It will be possible to narrow the undercarriage for transport like in the real thing, just have to unscrew 48 bolts
I also found a nice picture of 374 beeing transported on a low loader





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  #111  
Old 08-11-2012, 02:49 PM
Madda Madda is offline
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Default Re: CAT 374D L

The pace you are building at is just amazing!

How many hours a day do you spend on that beast?
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  #112  
Old 08-11-2012, 03:33 PM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

Quote:
Originally Posted by Madda View Post
The pace you are building at is just amazing!

How many hours a day do you spend on that beast?
Too many
I'm on my annual leave, so I can spend more time with it
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  #113  
Old 08-11-2012, 06:42 PM
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Default Re: CAT 374D L

Awesome work! And the pace is not compareable
Cnc is cool
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  #114  
Old 08-11-2012, 08:15 PM
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Default Re: CAT 374D L

Wow !! Your work is amazing. Excellent work !!
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  #115  
Old 08-18-2012, 12:04 PM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

Got the x-frame top piece and the underside corner support pieces done. I also made the boom tip reinforcement plates







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  #116  
Old 08-18-2012, 03:33 PM
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Default Re: CAT 374D L

When I look at your update pictures I start dropping F bombs... In a good way of course. There's just not that many polite ways to describe what you're doing!

Nice work Ari!!!!!!!!!!
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  #117  
Old 08-18-2012, 04:39 PM
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Default Re: CAT 374D L

looks really nice, how much does your undercarriage weigh?
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  #118  
Old 08-19-2012, 02:46 AM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

Quote:
Originally Posted by carp View Post
looks really nice, how much does your undercarriage weigh?
Thanks again guys for the compliments

The undercarriage weight is now about 7 kg, that's without the tracks so it probably will be 10 kg when finished.
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  #119  
Old 08-19-2012, 06:00 AM
Madda Madda is offline
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Default Re: CAT 374D L

Great!

How are going to solve the problem what comes when you need to connect drive motors with the ESC? I mean that the swinging is going to twist the wires.


First tesdrive shouldn't be too far heh?
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  #120  
Old 08-19-2012, 06:26 AM
Hemi1966 Hemi1966 is offline
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Default Re: CAT 374D L

Quote:
Originally Posted by Madda View Post
Great!

How are going to solve the problem what comes when you need to connect drive motors with the ESC? I mean that the swinging is going to twist the wires.


First tesdrive shouldn't be too far heh?
I'm going to use slip ring like these: http://www.hzqs.com/english/src.html

And what comes to the undercarriage test drive the only thing that's missing are the tracks
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