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  #121  
Old 07-08-2011, 04:06 PM
td9clyde td9clyde is offline
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Default Re: CAT 535C Grapple Skidder

nice work isn't it cool to see everything work like it should when it is built?......nice job and well done
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  #122  
Old 07-27-2011, 06:11 PM
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Default Re: CAT 535C Grapple Skidder

Here's another video. It seems my problem is a low voltage supply causeing the speed control to act up. Anyone have a good replacement to recommend? I am using a sabertooth 2-25a.



Ben
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  #123  
Old 07-29-2011, 01:58 AM
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Default Re: CAT 535C Grapple Skidder

Hey ben add another seperate receiver pack ..Had that same problem
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  #124  
Old 07-29-2011, 09:44 AM
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Default Re: CAT 535C Grapple Skidder

So Lou, 2 receiver battery packs?

Ben
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  #125  
Old 07-29-2011, 10:19 AM
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Default Re: CAT 535C Grapple Skidder

Edit: Just saw that you already run a receiver pack. Unless this is very weak, my following text won't apply to you.


If you are relying on the ESC's BEC and your servos draw a lot of current, the BEC might break down, which shuts off the receiver and hence the servos' current draw. Then, the system comes back to life, with the control stick at whatever position it was and the self-learning ESC takes this as the new neutral.

So maybe, all you need is a stronger external BEC?

I use 5 cells of my 12V pack (it's actually a double 6V pack) to power my receiver. Not ideal, but enough grunt.

Cheers
Jens
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  #126  
Old 07-29-2011, 02:53 PM
Grainfarmer Grainfarmer is offline
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Default Re: CAT 535C Grapple Skidder

Where did you get the tires from? Are they about 30.5-32?
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  #127  
Old 07-29-2011, 03:46 PM
rcguyfarms rcguyfarms is offline
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Default Re: CAT 535C Grapple Skidder

use a 5v voltage regulator and eliminate the need for receiver packs. U can buy them for under $2 at radio shack.
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  #128  
Old 07-29-2011, 04:33 PM
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Default Re: CAT 535C Grapple Skidder

I am not familiar with RadioShack's products, but if you mean the simple 3-pin electronic part that regulates the input voltage down to 5V, this is not the ideal solution:
They typically do not cope with the high currents modern servos need and they are very inefficient, as they waste the extra power as heat. A proper BEC would be better - or a strong battery, if the space is sufficient.
If you know of a 2USD part that does not suffer from the disadvantages I mentioned, could you please provide a link, I'd be seriously and honestly interested.
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  #129  
Old 07-30-2011, 10:19 AM
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Default Re: CAT 535C Grapple Skidder

Quote:
Originally Posted by Grainfarmer View Post
Where did you get the tires from? Are they about 30.5-32?
They are Proline Mashers (discontinued)
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  #130  
Old 07-30-2011, 10:21 AM
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Default Re: CAT 535C Grapple Skidder

I have run it for 10- 20 mins with the steering servo unhooked without any problems. So my problem does lies with the introduction of the servo. Any suggestions?

Ben

Last edited by Snochaser; 07-30-2011 at 12:24 PM.
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  #131  
Old 07-30-2011, 12:18 PM
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Default Re: CAT 535C Grapple Skidder

Could be the servo, ive have 2 that make my DX7 go nuts but also could be the high current load. Id try another servo (unmounted) to see I had a look but couldnt see how easy it was to access and swap that said its a fair bulk to shift mechanically.
Im guessing $2 part mentioned is the 2905 IC these are limited to ~500mA - not enough for your requirements.
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  #132  
Old 09-19-2011, 10:14 PM
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Default Re: CAT 535C Grapple Skidder

I guess I have killed my steering servo (Hitec- HSR-5990TG) at Indy. I just took it apart tonight, makes noise but no movement. The gears all look good inside, I'm not sure is wrong.

Heavy Duty or RC farmer- if you wouldn't mind can you post the video you guys got of it in action while @ Indy here for me. I don't have much or very good video of my own.

Ben
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  #133  
Old 11-24-2011, 09:39 AM
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Default Re: CAT 535C Grapple Skidder

Here are a couple videos shot at Indy . Thanks rcfarmer

http://s60.photobucket.com/albums/h1...t=MVI_2841.mp4

http://s60.photobucket.com/albums/h1...t=MVI_2843.mp4
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  #134  
Old 11-24-2011, 12:58 PM
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Default Re: CAT 535C Grapple Skidder

Good videos snowchaser! as to your low voltage problem it maybe like jensr said and you need a seperate regulator to run it or if the servo was already on its way out it will sometimes draw masses of current causing the same low voltage effect, id send that back to hitec and see what they say $120 hitec servo shouldnt go bad like that.
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  #135  
Old 01-01-2012, 01:32 PM
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Default Re: CAT 535C Grapple Skidder

I believe I will send the servo back and see what they say.

I installed some "glass" finally, and updated a pic or two.






Video:


Ben
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Last edited by Snochaser; 08-14-2012 at 12:04 PM.
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  #136  
Old 01-01-2012, 01:47 PM
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Default Re: CAT 535C Grapple Skidder

Looks just too awsome to get it dirty lol
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  #137  
Old 01-02-2012, 11:47 AM
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Default Re: CAT 535C Grapple Skidder

Thanks. I've had some very frustrating moments with it, but I believe I have all the kinks ironed out now.

Ben
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  #138  
Old 01-22-2012, 09:26 PM
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Default Re: CAT 535C Grapple Skidder

Do you guys find you enjoy building stuff then realize the fun is building and just assume sell what you've built?
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  #139  
Old 01-22-2012, 09:38 PM
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Default Re: CAT 535C Grapple Skidder

Quote:
Originally Posted by Snochaser View Post
Do you guys find you enjoy building stuff then realize the fun is building and just assume sell what you've built?
I do enjoy building more than playing with it when it's finished but what is this selling thing you speak of? Unfortunately for me selling isn't in my vocabulary.lol

Reg
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  #140  
Old 01-22-2012, 10:02 PM
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Default Re: CAT 535C Grapple Skidder

Ben , I get bored fast running 1 thing . So , I keep what I build , just keep building more
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