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Author Topic: DIY Fellerbuncher  (Read 23466 times)

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Offline northforker

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Re: DIY Fellerbuncher
« Reply #20 on: December 16, 2011, 02:36:16 pm »
northforker,welcome to the forum. With a nice looking project like that one,there must be others?

Oh I do some stuff here and there. Here's a snowblower I built for the ASV 9 years ago. It's still going strong. I usually bust off a fan blade or two every season or something, but I just cut out a new one and weld it on.


Offline sandhills

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Re: DIY Fellerbuncher
« Reply #21 on: December 16, 2011, 02:51:22 pm »
I'm very impressed with the fabrication to say the least!  Welcome to the forum, and with skills like that I think I'd be fabricating some windows for that ASV if I were you  ;).

Offline northforker

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Re: DIY Fellerbuncher
« Reply #22 on: December 16, 2011, 03:07:08 pm »
Gimme a break! I've only owned this thing for like 11 years now ;)

I'm very impressed with the fabrication to say the least!  Welcome to the forum, and with skills like that I think I'd be fabricating some windows for that ASV if I were you  ;).

Offline reride82

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Re: DIY Fellerbuncher
« Reply #23 on: December 16, 2011, 03:46:39 pm »
With a name like Northforker in the NW corner of Montana, would I venture a guess you are on the North Fork of the Flathead River?
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Offline northforker

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Re: DIY Fellerbuncher
« Reply #24 on: December 16, 2011, 07:22:44 pm »
That sounds reasonable.

With a name like Northforker in the NW corner of Montana, would I venture a guess you are on the North Fork of the Flathead River?

Offline semologger

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Re: DIY Fellerbuncher
« Reply #25 on: December 16, 2011, 07:53:21 pm »
northforker you didnt stop at the red light in your first video.

Online barbender

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Re: DIY Fellerbuncher
« Reply #26 on: December 16, 2011, 08:36:38 pm »
Northforker- I have seen that Danzco website. I'll look into it more when I get more serious about the project. BTW, I wouldn't make any apologies about your fabrication skills.
Too many irons in the fire

Offline Taylortractornut

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Re: DIY Fellerbuncher
« Reply #27 on: December 16, 2011, 10:31:13 pm »
Northforker I d say you fall into the Fabricator bracket to.   I have a 14 gpm loader Id like to build a bar sawhead for it.     I worked in a yard that had  one that ran  was set up on one circuit.  for the saw.  The saw bar had a line teed to the cylinder it then  went to the motor.   The bar would push out as the motor had a restrictor orifice  it that let the fluid go to the cylinder first.  Then the chain hit the trun the chain would run.    The return for the bar cylinder was run off the  grapple opening.
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Online barbender

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Re: DIY Fellerbuncher
« Reply #28 on: December 17, 2011, 09:37:31 am »
Taylor, what was that bar saw on?
Too many irons in the fire

Offline northforker

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Re: DIY Fellerbuncher
« Reply #29 on: December 17, 2011, 11:11:40 pm »
How well did that bar saw work Taylor? I wondering in the split hydraulic circuit you describe, what would happen if the saw started to bog? It seems to me that more PSI would push the bar out faster in that case and then cause the saw to slow even more. Wouldn't you want the bar feed to slow as sawing becomes difficult? I guess if the saw has plenty of power it's not an issue.

Offline Ron Scott

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Re: DIY Fellerbuncher
« Reply #30 on: December 17, 2011, 11:35:29 pm »
Well done on the DIY Fellerbuncher. Do you have a lot of mountain beetle killed trees to work it on where you are located?
~Ron

Offline northforker

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Re: DIY Fellerbuncher
« Reply #31 on: December 18, 2011, 01:48:46 pm »
Thanks Ron. The beetles are not quite here yet but are getting very close. I wouldn't be surprised to see them here next summer. Anybody have any luck with Verbenone?

Offline Taylortractornut

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Re: DIY Fellerbuncher
« Reply #32 on: December 18, 2011, 09:32:28 pm »
They had it on 2 setups.  THe first one was a  small shear head frame on an old Melroe Bobcat.  Then later had it on a  knuckle boom grapple one tim for bucking logs.     I haven seen it in a while. It worked out pretty good.    When the bar slowed down a the cylinder pushed a bit harder then the resistance from the cylinder would make the motor spin faster.    It seemed to work really well.   I think the one line and the set up actually metered itself better than 2 circuits. 
My overload permit starts after sunset

Offline northforker

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Re: DIY Fellerbuncher
« Reply #33 on: December 19, 2011, 05:08:25 pm »
Thanks Taylor. That's intriguing. Anyway, it's simple enough to give it a shot and I'm all for simplicity. I use a simple circuit for the hydraulic chute rotator on my snowblower that might work too that used a single circuit. I run the auger through the valve body of an old log splitter valve. This would be in the P-T circuit so it's running all the time that I have the Aux circuit engaged. The motor that rotates the chute uses the work ports on the valve. By feathering the valve lever, I can move the chute fast or slow without robbing the auger motor of much flow at all. I think this could work for a bar saw setup as well, where I would use a bar cylinder in place of the chute rotator motor.

Offline mad murdock

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Re: DIY Fellerbuncher
« Reply #34 on: December 19, 2011, 05:18:42 pm »
The beetles are not quite here yet but are getting very close. I wouldn't be surprised to see them here next summer. Anybody have any luck with Verbenone?
 
We did 5 years of research application for private timber co's and the USFS on test plots in CA, WA, ID, and MT using verbenone, the results were very good.  When the first large(ish) job came up for bid in 2010, The Government awarded the job to a company that had never applied the product, but because they had written a book on how they were going to do a good job, they got the bid, even though we were a bit under them in price.  I don't know if it was because of poor application results on that upscaled job, or if it was because of the government funding woes, either way, there has not been any more of that work.  The results on all of the test plots we had done, were excellent.  The disrupter flakes worked very well it stopping the beetle propagation.  BTW, I would not be ashamed of your fab work either!
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Offline jr-transport

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Re: DIY Fellerbuncher
« Reply #35 on: December 19, 2011, 08:02:27 pm »
I'd get in trouble with one of those things!  ;D

Very nice work. I too would get in trouble with that. I would have the entire farm treeless just because it was so fun to play with. hahaha  8)


Ditto.
Looks good, and welcom here!
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Offline snowstorm

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Re: DIY Fellerbuncher
« Reply #36 on: December 19, 2011, 08:17:18 pm »
Thanks Taylor. That's intriguing. Anyway, it's simple enough to give it a shot and I'm all for simplicity. I use a simple circuit for the hydraulic chute rotator on my snowblower that might work too that used a single circuit. I run the auger through the valve body of an old log splitter valve. This would be in the P-T circuit so it's running all the time that I have the Aux circuit engaged. The motor that rotates the chute uses the work ports on the valve. By feathering the valve lever, I can move the chute fast or slow without robbing the auger motor of much flow at all. I think this could work for a bar saw setup as well, where I would use a bar cylinder in place of the chute rotator motor.
a priority valve would help.load sensing pressure compensated valves would be even better

Offline northforker

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Re: DIY Fellerbuncher
« Reply #37 on: December 20, 2011, 02:14:52 pm »
Thanks Murdock. I've not heard of the flakes and will have to read up on that. Good, so the Verbenone works. The downside is that it's a bit pricey, at least for consumers. It seems cost ~ $20+ for a 2 pack. I read somewhere that you should hang 35 per acre. The $ adds up quick!

The beetles are not quite here yet but are getting very close. I wouldn't be surprised to see them here next summer. Anybody have any luck with Verbenone?
 
We did 5 years of research application for private timber co's and the USFS on test plots in CA, WA, ID, and MT using verbenone, the results were very good.  When the first large(ish) job came up for bid in 2010, The Government awarded the job to a company that had never applied the product, but because they had written a book on how they were going to do a good job, they got the bid, even though we were a bit under them in price.  I don't know if it was because of poor application results on that upscaled job, or if it was because of the government funding woes, either way, there has not been any more of that work.  The results on all of the test plots we had done, were excellent.  The disrupter flakes worked very well it stopping the beetle propagation.  BTW, I would not be ashamed of your fab work either!

Offline northforker

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Re: DIY Fellerbuncher
« Reply #38 on: December 20, 2011, 02:33:15 pm »
a priority valve would help.load sensing pressure compensated valves would be even better

Good stuff for me to think about. Now you guys have me half starting another project! I get how a priority valve apportions the flow between the saw motor and bar, but would this work if the bar is moved by a double acting cylinder, or would you have to put in a directional valve downstream of the divider on the bar circuit? I'll have to do some more reading on the load-sensing pressure compensated valves. The ones I'm familiar with are used in conjunction with a variable displacement pump. Without knowing anything else (which I don't) ideally you'd be in tall cotton if you had a valve that could sense delta-P across the saw motor and inversely meter flow to the bar cylinder - so that if delta-P increases, bar advances slower and vice versa. Thoughts?

Offline snowstorm

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Re: DIY Fellerbuncher
« Reply #39 on: December 20, 2011, 05:17:24 pm »
rexroth made load sensing pressure compensatered valves  valmet used them. with an open center gear pump. am surprised you have power enought with only 25gpm. what psi are you at?