log grapple

[td9clyde]

well it is finished except for primer i would rather you see the thing all bare so you can check it out linkage is made you may have to shime out the servo 1/8 to 1/4 inch things got tight i did the best i could with it lol and you may have to tweek with the linkage as for the only servo i had only had one side of mounting holes and i have no way of running it off of a remote so your gonna still have some test and tune to do .............Sory guys i'm not in the logging industry i think i'll stick to my dozers and scrapers lol

[trucker n]

so you got some pics

[td9clyde]

[td9clyde]

here's the pics, the best I can do

[trucker n]

thats sweet now can you build me another one smaller like the pics you looked at

[td9clyde]

to be honest if i build a smaller one your gonna need 2 small cylinders cuz i had a hard time figuring this one out lol took me two days to build this thing if i do do a smaller one it would be like cats design much much simpler i used parts i had and baught the steel .........smaller would be tremendously harder to make it work as for making the steel parts not bad but still hard if you want call me 260 273 5859

[trucker n]

that one is fine but i need another for another build and i want it like the cat design and i want to put the ram just one in the middle like there design

[trucker n]

also do you think you can do it out of alluminum or thin steel also need a log loader crane for a fowarder

[trucker n]

im going to build the john deer 810d so need a crane for that

[td9clyde]

lol you outta my league i don't know what a forwarder even is lol aluminum is out for me maybe thin steel and the design i was looking at with cat they had two cylinders like i said smaller /thinner would be harder on this one i built might change out the 4 washers for one O ring tak out a lil of the play

[td9clyde]

right now i am still tryin to get my scraper and the two D 7 's built and done lol let me get some of this stuff off my bench and movin lol then i might build some different things

[trucker n]

the crane is simple i just want the arms built but i dont have a welder to make anything if you look up the deer 810 you will see what it is also pm me your addy to send pump also on the other grab i want the 2 grab arms on each side to get some width to it thanks neil

[td9clyde]

well i hope you like it when you receive it this week like i said you may have to do some tweeking to get it to work smoothly like i said i had no way to really try it out so all i can say is have fun and good luck

[ihbuilder]

no offense guys , but this should be taking place via PM

[trucker n]

sorry

[TheMachinist]

Here's a picture of an old grapple that uses a single cylinder that has the barrel anchored to the legs and the rod anchored to the head. the hydraulic oil is pumped through oil galleries in the rod (those were fun to drill).
On a model the cylinder could be replaced with a screw drive to achieve the same effect with plenty of holding power.
The grapple was built by Chapman industries but didn't fair well because the rod was weak.