Thumb Another Back-Hoe Thumb

[Roto]

BobQ, have any more pictures or close ups of that?

mike

 

[BobQ]

This is the only other one I have handy. Hope it helps!

 

[3RRL]

Gene,
The simplicity is beautiful! Great thinking and a very nice execution too.
Thanks for sharing.

 

[Scrounger]

Was the hole in the arm already their or did you have to cut it out. I really like the idea but I think the hole would make my small BH6000 a bit weak.

 

[GEB]

This is the only other one I have handy. Hope it helps!

Good lookin thumb Bob, I think I seen it over on the Branson forum.
Gene

 

[GEB]

Was the hole in the arm already their or did you have to cut it out. I really like the idea but I think the hole would make my small BH6000 a bit weak.

No, I cut the hole along with welding in a sleeve to add strength.
The thumb is a perfect fit inside top to bottom.
Maybe have a better look at the pic's.
If you have a smaller B/H maybe try using smaller tube?
My sleeve is 3inX1/4 wall thick the thumb is 2 1/2inX1/4 wall which makes a perfect fit.
As long as you use 1/4 wall tube it should be very strong even with smaller tube.
Hope this helps?
Gene