Lowering device.

[frans]

hope I dont get in trouble for this but....

 

Here is a great advert. for the Hobbs

 

http://www.treebuzz.com/forum/showflat.php?Cat=0&Board=rigging&Number=109565&Searchpage=1&Main=109535&Words=&topic=&Search=true#Post109565

[Mangoes]

Catching up on this thread. Alot of good work here. A note of defence for Greg Good I was told that he profits $200 per GRCS (slightly lower than the $300 Frans has mentioned, but might account for the bulk sale difference) and by that token he is giving away his intellectual property. The man works to better the industry, does alot of training in rigging, and will share anything he knows about tree work. Drives a Mini not a Mercedes.

 

For all that have some homemade devices, did you machine the holes for the baseplate screws yourselves or did you have a professional machinist do the task? For my mini GRCS I did my own and found the task very daunting.

 

As far as value and return......meh....no sense arguing about it. Those that don't see its value, it won't fit their 'formula' for tree work, those that see a potential will try it and alter their 'formula' to make it efficient for them. Personal taste.

 

Anecdote: pretty scetchy, but pretty amazing, watching a mentor use 2 GRCS to lift a 32" DBH Norway Spruce out of a ravine in 1 piece. The winch itself didn't have enough power, but when you put a 44:1 winch on the tail of a 5/8 line used to create a 5:1 which is subsequently on a 3/4" line used to create a 3:1 attached to the 3/4" pull line, you find yourself generating alot of force (harp not on me, I know systems were overloaded, this mentor was smart, but also like to push limits)

[skyhuck]

Catching up on this thread. Alot of good work here. A note of defence for Greg Good I was told that he profits $200 per GRCS (slightly lower than the $300 Frans has mentioned, but might account for the bulk sale difference) and by that token he is giving away his intellectual property. The man works to better the industry, does alot of training in rigging, and will share anything he knows about tree work. Drives a Mini not a Mercedes.

 

For all that have some homemade devices, did you machine the holes for the baseplate screws yourselves or did you have a professional machinist do the task? For my mini GRCS I did my own and found the task very daunting.

 

As far as value and return......meh....no sense arguing about it. Those that don't see its value, it won't fit their 'formula' for tree work, those that see a potential will try it and alter their 'formula' to make it efficient for them. Personal taste.

 

Anecdote: pretty scetchy, but pretty amazing, watching a mentor use 2 GRCS to lift a 32" DBH Norway Spruce out of a ravine in 1 piece. The winch itself didn't have enough power, but when you put a 44:1 winch on the tail of a 5/8 line used to create a 5:1 which is subsequently on a 3/4" line used to create a 3:1 attached to the 3/4" pull line, you find yourself generating alot of force (harp not on me, I know systems were overloaded, this mentor was smart, but also like to push limits)

 

Don't you find the ones who complain about the cost of gear are the same people who moan about the poor money they make in the industry,it a mind set thing.

[frans]

A note of defence for Greg Good I was told that he profits $200 per GRCS (slightly lower than the $300 Frans has mentioned, but might account for the bulk sale difference)

 

You are prob. correct. I dont know the exact numbers as that is Greg's business not mine. He sure doesn't make a killing I know that for sure.

 

For all that have some homemade devices, did you machine the holes for the baseplate screws yourselves or did you have a professional machinist do the task? For my mini GRCS I did my own and found the task very daunting.

 

I did the tapping myself. And yes I broke on tap (which is still in the hole). I had to shift the holes over a bit.

 

Tapping threads into steel plate with a tiny tap is not easy. You have to have alot of patience and cut a bit, back out, cut a bit more, and just take it easy. rush it, and it will brake.

[Mangoes]

So you have a back plate that looks like Swiss Cheese too!

[telhol]

can you not use countersunk bolts

[frans]

So you have a back plate that looks like Swiss Cheese too!

 

 

1/2" plate so not alot of room for countersinking

[telhol]

Guess not weld it :wave:

[kimtree]

i countersunk mine and used bolts and nuts.the plate's 5/8