What's the diff ?

[Supermario]

Originally Posted by tc1cat

Great pics of the boring machine. Does the boring machine bolt to the pivot point or is it held on by magnets? Do you have any that shows the actual boring cutter head? Interested in what size it is. Thanks for the pics.

I'll get some more pics Lynn. He still has to do the back half so I still have a chance at some pics of the bore welder and a video. Amazing how quick and well that works.

My apologies if terminology is off, the boring head is mounted on spherical, mounts on the boring bar supports. The last pic kinda shows how the bearing cages are rounded. The machine clamps on with the same curved socket so even if bar isn't true in the bearing support, the drive still connects. All bolted, no electro magnets.
I'll get more specs and pics......I'm still trying to figure out how the machinist is going to fit a 9ft bar in the back frame with cab still installed?

[tc1cat]

Thanks for the info. Wondered if you welded up the bore so you could re-bore it and use the same size bearings.

[Supermario]

Got some more pics and a couple vids today.

First pic is showing top front frame bore being welded. That's a 10" diameter bore , 8" thiick !

Meanwhile, welder is repairing cracks and cutting out and replacing a cracked fishplate.
Machinist managed to get a 8ft bar in between rear frame bores but a very tricky process. Had to pre install 2 bearing blocks then feed shaft through bottom bore then up through top. Add the 2 end blocks and get things all lined up.
Due to tight space under cab the 8 ft bar is not long enough so after everything was set up he managed to have enough space to remove the long bar and then do each set of bores with a short bar.

If I wasn't a mechanic, I'd love to do this machining work.













This pic he's just setting up the welder which anchors to the rod seen.

He takes a cut, then welds, then cuts again to finished size.



https://youtu.be/93cjfZfTaDU

https://youtu.be/HA6GqR6cBho

[RCP57]

Cool stuff Mario. I need a boring machine to clean up the boom pivots on my mini excavator. I think that one might be a bit too large though.