Heh heh. I've got a pair myself that I made after finding out the leather ones from the store leached dye on my skin whenever I finished welding with my everlast.
i would have the pins drilled and threaded on both ends... so i could screw in a big forged ring eye.. to allow a chain to something and swing the boom to yank the pin out or to use a big bolt to drive the pins in with.. yes the threaded hole might intersect the cross bolt.. heck.. drill and tap right thru that hole.. a porta power cylinder with a hole thru the middle could also be used then if the pin gets stuck. in the mean time.. weld on a 7/8" course thread nut on the ends of the pins..
That's a harbor freight pressure washer isn't it? How do you like it? I did a review on it a while ago. Great video. Nice thumb. It would have been nice for it to be a hydraulic thumb though.
I have a komatsu 2000 pc200lc-6, I wanna convert my mechanical thumb to hydraulic thumb. Do you know how to get the hydraulics set up? Or any info that would be helpful?
I find excavators to be pretty intriguing and i was telling my bf, i want one with a thumb on it, not knowing thats what its really called..lol..my mind is blown..ITS MEANT TO BE! Haha!
Welding with some 3/16 size 7018 electrodes would have sped up the welding process. A preheat to help control weld stress would have been a good idea as well.
Sort of. On a newer machine that is plumbed door extra hydraulics, it's very simple. Add a cylinder and you done. His machine is not plumbed and that's hard to do.
you dont have to disconnect the battery's if your ground is clean and close and directly attached to what you are welding its a good precaution though but it only really happens if you do something like grounding to a track while welding on the bucket all the power being zapped into the metal is going to go to the easiest ground if you are set up right its your ground if not its going to take its own path which may be through the computer and its wiring to its ground
disconnecting the battery won't protect the computer. Sorry to say. But high frequency welding is what typically does them in. Mig and Stick are fairly safe. Home boy laid some nice beads though.
I'm a logger in Wisconsin and you are correct sir. Awhile back we pulled the connection off the battery on our processor and mig welded on it and it fried the computer on a fairly new machine. $15,000 dollars later we will not make that mistake again.
Ryan Seppanen Holy fuck! last time i made that mistake it only cost me 160 bucks....thank god dodge parts are cheap, and they break down long before the computers go out so plenty in the boneyards!
That welder sure knows how to lay out a' roll of nickles'.( Welding bead ) But I do wonder how many times he has had to jump around after a hot piece of slag landed down in his boots. Good job though,.I'm impressed with that installation, and the fit and finish of the Thumb. Chris, can that Thumb be converted to hydraulic power ?
Reg Sparkes no the machine is not plumbed to run a hydraulic one and it would cost a god awful amount to make it run one. I never saw him jump as I was helping all day LOL
letsdig18 you could always go super afro engineering on it get a little gas motor to run a pump then plumb that to your control valve then to the hydraulic cylinder you just have to start the little motor whenever you want to use it get it done for under 2k
It wouldn't cost too much. Probably $400. Little trick. You can just splice off one of the lines that power one of the hydraulic cylinders, then route that splice through its own hydraulic lever that leads to the end of the boom and voila, you have aux hydraulics. For an impliment with large flow requirements like an auger you would have to do the same but splice off the main hydraulic hose that has lots of flow. When the thumb isn't in use it will have no effect on the system since the lever is close.
It doesn't help or hurt to remove the ground with DC welding as that's not what causes problems. People have a misconception about what causes problems. When the battery is still connected, the welder and battery, which are both bonded to the machine hull, make a common ground and have no effect on electronics because all the circuits are open (infinite resistance if you want to get technical). What causes damage to modern electronics is the same principle that electro magnetic pulses use to causes destruction. When welding, a magnetic field is created which screws with lots of electronics if you are too close to them. Which is why, yes, keeping the ground lead close to the electrode helps but doesn't eliminate chances of problems. High frequency welders should be avoided for these reasons. Now for AC welding. You can possibly start to mess up the battery here because you are constantly changing the polarity from + to - of what is normally ground of the welder which is connected to the negative grounded terminal of the battery through the chassis (i.e there is no permanent ground because its switching back and forth rapidly).
Stationary thumbs they should call them thumbs for people who want to spend more money on their jobs in the long run.they are such a pain in the ass and a waste of time compared to just putting a proper thumb on a machine cheap out in the beginning spend a lot more in the long run
