Got a LARGE pizza you want to cut?

[Mochanic]

I designed (3d CAD) , machined and built this pretty cool attachment for installing electronic dog fencing wire.

I can cut up to about 4" deep although the wire only needs to be about 1-2" into the ground. This cutting wheel is 1" thick with a very sharp 120 degree cutting edge. All the arms and hardware are 304 stainless.

It works VERY well when the ground is damp. It has easily enough power to lift the whole rear end off the ground if the ground is to hard.

I have a long set of hoses that have quick connects from the cylinder to the FEL ports for now. May eventually install the BX7326 Rear AUX kit for this and a log splitter that I want to make.

 

[shiraz627]

I used the depth control of my Honda FRC800 to lay 500' of 18ga wire.

 

[North Idaho Wolfman]

STOP:

You have done a huge NO NO!

It has easily enough power to lift the whole rear end off the ground if the ground is to hard.

You have taken a floating three point and gave it down pressure, your going to break something as there is no shock load to the top link and the load is at a horrible upward angle!
The design of the three point floats so that when a implement hits any obstruction it springs up without breaking parts on the tractor.

And while you may think...awwww this aint got no force... all it would take is one rock or root to ruin your day!

 

[Jpatrick]

If I'm understanding the photos right, all the down force is borne by the top link on the 3 point hitch. For this idea to work reliably without breaking something you'd need to find a way to transfer the down force to the frame as is done with a backhoe or a loader.

 

[Grateful11]

You might end up with something similar to this.

https://www.youtube.com/watch?v=fc79AmXR_v4

 

[SidecarFlip]

Gotta like Boob Tube video's. Of course the owner never states what he had on the hitch that caused the break (as there is nothing on it presently. Typical. Castings don't break like that without something contributing to the break.

 

[Lil Foot]

Gotta like Boob Tube video's. Of course the owner never states what he had on the hitch that caused the break (as there is nothing on it presently. Typical. Castings don't break like that without something contributing to the break.

Especially twice.

 

[SidecarFlip]

Especially twice.

I commend Kubota for fixing it once. How does that old saying go? 'First time it's on me, second time it's all yours'....

Guy down the road a piece had a larger L series Kubota, bought an aftermarket 3 point mount hoe (no subframe) and commenced to break off an axle housing (probably from digging with the rear wheels lofted off the ground and totally ate the repair because out local dealer said no way. He whined about the cost and sold the Kubota and bought a Deere and promptly did the same thing again.

Some people are too stupid to learn from their mistakes.

 

[Mochanic]

I am 110% absolutely positive that my attachment is NOT going to hurt the tractor. There is no where near the stress that my tiller or subsoiler puts on the upper 3 point mount. The load from the disk travels up the stainless rods and into the top mount which is directly tied into the frame. NO WAY is that going to be hurt from the NON violent rolling of the cutting wheel. The tiller would have broken that a long time ago if it were that weak. (especially when it catches a root!)

 

[North Idaho Wolfman]

I am 110% absolutely positive that my attachment is NOT going to hurt the tractor. There is no where near the stress that my tiller or subsoiler puts on the upper 3 point mount. The load from the disk travels up the stainless rods and into the top mount which is directly tied into the frame. NO WAY is that going to be hurt from the NON violent rolling of the cutting wheel. The tiller would have broken that a long time ago if it were that weak. (especially when it catches a root!)

I'm a 1000% positive that, that kind of hook up can cause serious damage... But hey it's yours, you bought it, you can break it!

 

[SidecarFlip]

When it breaks (and it will) and your dealer denies a warranty claim, stop back and Wolfman will tell you how to take it apart and fix it.....

 

[BAP]

Why not make it clamp on and put it on you loader bucket like they do with asphalt wheels?

 

[fuzzydawg]

Will this damage the tractor if it hits a root or large rock? It's not mine but I was thinking of welding one up.

 

[D2Cat]

It should have a bolt at the top that is designed to shear off if too much pressure is applied. Then the foot is allowed to float upwards.

 

[Mochanic]

When it breaks (and it will) and your dealer denies a warranty claim, stop back and Wolfman will tell you how to take it apart and fix it.....

1. It's long out of their useless warranty period anyway.

2. It's NOT going to break due to my ground cutter. It would have broken YEARS ago from the violent bashing it gets from the tiller, or the extreme forces of the subsoiler. The ground cutting disk does nothing more than roll into the damp soil (no point in using it unless the ground is wet) There is no jerking, banging, pulling, etc..

3. The BX is not a big heavy tractor, it doesn't take much to lift the rear end off the ground. There is NO POSSIBLE WAY that this attachment is putting anywhere near enough stress on the top link that it will break it, especially since it's all tied directly into the frame.

4. IF my attachment that gets used once every 5+yrs in the right conditions were to EVER break anything (which it won't) I can fix it as I have done with every single other problem that this POS has ever had. Working on this is cake compared to everything else I am used to.

 

[Mochanic]

Why not make it clamp on and put it on you loader bucket like they do with asphalt wheels?

1. Because it's way to far in front of the tractor keeping you from turning.

2. There is not enough weight, it would just lift the front wheels off the ground in hard pack.

3. The bucket has to much play/movement in it which prevents you from getting a consistent depth.

It works absolutely PERFECT on the rear as designed. I cut about 1/2 mile, 3" deep with wire in the ground in about 15 minutes. (AND IT DIDNT BREAK ANYTHING! )

 

[Ping]

There is NO POSSIBLE WAY that this attachment is putting anywhere near enough stress on the top link that it will break it, especially since it's all tied directly into the frame.

You said you designed this with 3D CAD. Have you done your due diligence and ran an FEA analysis to actually determine the stress placed on the top link? Have you considered the dynamic loading forces?
It's your tractor and you do with it as you wish. But, these people are only trying to save you a rather costly repair somewhere down the road.
I'm gone.

 

[Mochanic]

You said you designed this with 3D CAD. Have you done your due diligence and ran an FEA analysis to actually determine the stress placed on the top link? Have you considered the dynamic loading forces?
It's your tractor and you do with it as you wish. But, these people are only trying to save you a rather costly repair somewhere down the road.
I'm gone.

No, because that would require many unknown factors along with the tractor design too. It's NOT something I am even remotely worried about.
I appreciate everyone's concern, and had I known there would be so much negativity I would have never bothered to post it. I guess I didn't realize that everyone on here is an engineer and thinks it should be built to handle 100 tons.

 

[Muzzy]

I guess I didn't realize that everyone on here is an engineer and thinks it should be built to handle 100 tons.

I certainly do not read it that way. Many here are giving you good insight and valuable information, your choice to take it or leave it.
Prevention is the Best Cure..

 

[North Idaho Wolfman]

I appreciate everyone's concern, and had I known there would be so much negativity I would have never bothered to post it. I guess I didn't realize that everyone on here is an engineer and thinks it should be built to handle 100 tons.

I've only worked on these these and many more over the years and I know what upward force on the top link does.
But I digress, you already call it a POS, so I'm taking it you've already had problems, and we can only surmise that maybe you have caused some of the problems.
Sorry I was just trying to save you some grief, I'll shut up now, carry on!