Log Splitter I-Beam BENDING...!

[Kyle_in_Tex]

It is an M939 Series 5 Ton. Yes from GL. Full blown Air brakes, Cummins NHC-250, Allison 5 speed auto, Rockwells, Transfer case. 6x6. She weighs about 27K as she sits today. 20K winch on front. I have serviced the thing to the max and by the book. I would not hesitate to hop in it and drive to the north of Alaska and back. No kidding. My wallet would protest but the truck will just go and go and go.
We believe it's mission was attached to the Marines pre-positioning forces out of Florida.

When I bought it, well just before I bought it, I found out you need to have a commercial license
to operate it as a civilian. (Some will argue that till the death but frankly, I have too much to loose in
a court battle, so...) so I hit up Dootson truck driving school and just 9 days later I had a
Class B License in my pocket, w/ Air brakes, Passenger, and Tank endorsements, plus my motorcycle.
I can drive it as a school bus and interstate.

The DMV handed me I think it was 7 tests, all at one time. Fun Stuff.

I want to buy 1 for when my 8 year old daughter starts to drive.

 

[CDN Farm Boy]

Ah HA! Someone is looking! When I removed the material on the bottom I considered
such forces as best as my burnt lil brain could calculate and I decided that I was
only going to go w/ 50% or so of the top angle.

The I Beam does drop away so the cant's (?) or split pieces of wood can drop away
as they are wedged apart but I wanted to try to AD somedown force to try to
create some equalibrum if you will in the up and down forces created.

There are just shy of a bazillion variables here me thinks!

As always I appreciate the input much!

I still think something is missing in the calculations and that this is a major cause of the problem. Just to be clear though, are you saying the bending happened before the mods to the knife and beavertail? Did the bending stabilize or get worse after the mods?

I'm also curious as to why or what you have against the single directional sharpening of the wedge? Yes, a felling axe is sharpened on both sides but a broad axe is only sharpened on one as is a wood chisel (the micro-bevel achieved with proper sharpening of these tools is so minute as to not be considered)

 

[bcp]

What MIGHT be happening:



Adding the bevel on the bottom means the wedge takes a thicker bite of the log. This forces the A end of section 1 down, using B as the fulcrum, lifting the C end, which forces the pusher upwards. It may take an even larger bite of the log as it nears the wedge, forcing the pusher higher.

I don't think it would be a problem on easy splitting wood like fir, but may create wrong direction forces with tough species.

Bruce

 

[CDN Farm Boy]

What MIGHT be happening:

View attachment 347952

Adding the bevel on the bottom means the wedge takes a thicker bite of the log. This forces the A end of section 1 down, using B as the fulcrum, lifting the C end, which forces the pusher upwards. It may take an even larger bite of the log as it nears the wedge, forcing the pusher higher.

I don't think it would be a problem on easy splitting wood like fir, but may create wrong direction forces with tough species.

Bruce

That's what I was trying to explain back in post #22

 

[Artisan]

I still think something is missing in the calculations and that this is a major cause of the problem. Just to be clear though, are you saying the bending happened before the mods to the knife and beavertail? Did the bending stabilize or get worse after the mods?

I'm also curious as to why or what you have against the single directional sharpening of the wedge? Yes, a felling axe is sharpened on both sides but a broad axe is only sharpened on one as is a wood chisel (the micro-bevel achieved with proper sharpening of these tools is so minute as to not be considered)

The bending occurred before I sharpened the bottom of the horz blade.
I have not put it back together yet to know outcome, I await parts.

 

[ETpilot]

One thing you do not show is your cylinder install and pusher slide. Is your cylinder installed so it pushes parallel to the top plate? Is it mounted as low as possible or higher up?