backhoe ripper, trailer hitch

[bandaidmd]

Just got my bx expanded quick coupler for my backhoe and decided that now that its so easy to swap tools i need some. First up is a ripper , the u channel mount is 4"x3/8 thick angle doubled up and lap welded the tooth is a replacement box blade scrcifier . I milled a slot in the doubled up portion so both top and bottom of the tooth could be welded. I welded a piece of 3/8 x1 flat bar on the front and cut in some teeth freehand with a cutoff wheel. The hitch is a prefab receiver tube. The mounts are a 1"roundbar welded directly to the square tube. The other end is a piece of 1"id pipe for the pin to pass thru. I didn't have any of that thick wall tube so i bent a piece of 1/8"x2 flat and welded it over the pipe as a reinforcement.

 

[MoDMaN007]

Nice job man....Like your mini mill. Its on my "To Buy" list.

Instead of putting a receiver on my backhoe I put one on my front bucket. Use it all the time. Probably one of the most convenient upgrades I've done.

 

[CDN Farm Boy]

Nice job. I like the double angle to make the mount.

I would suggest some bracing of the tooth to the mount. There's quite a bit of force/leverage on that joint and I question if the way you've got it will hold up.

 

[bandaidmd]

i have one mounted in the same spot but even with the backer plate it has bent the top lip of the bucket. I have built a 3ph mount onto a ssqa plate that i use my tbar hitch on the front. Having the hitch back closer makes a big difference.

 

[bandaidmd]

Nice job. I like the double angle to make the mount.

I would suggest some bracing of the tooth to the mount. There's quite a bit of force/leverage on that joint and I question if the way you've got it will hold up.

it passes thru the doubled up angle and is welded top and bottom. Theres also a 1/2 x1 piece that serves as an extra gusset. Pretty sue that mystery metal chinese shank will break or bend before it dislodges from the mount.

 

[bandaidmd]

it got dirty

 

[MoDMaN007]

i have one mounted in the same spot but even with the backer plate it has bent the top lip of the bucket. I have built a 3ph mount onto a ssqa plate that i use my tbar hitch on the front. Having the hitch back closer makes a big difference.

I used a heavy piece of angle and then attached the hooks and reciever to that. I move around some really heavy trailers alot and sometimes I get lazy and just leave it on while im digging\moving material and I have yet to bend anything after 3 years. Its pretty strong with the angle.

 

[bandaidmd]

I used a heavy piece of angle and then attached the hooks and reciever to that. I move around some really heavy trailers alot and sometimes I get lazy and just leave it on while im digging\moving material and I have yet to bend anything after 3 years. Its pretty strong with the angle.

thats a better angle lol. i just used a backer under the lip, i like your version.

 

[MarkStewart]

How well is that mini mill work for making 1"+ holes? Do you just use regular drill bits or a different kind of cutter thanks?
Mark

 

[bandaidmd]

It works fine and is precise but its slow going about a .012 cut at a time per side (.024 dia) . I originally marked each side and drilled 7/8" holes on a regular drill press (need 1") before welding the half's together but they shifted a little bit just as i thought they might. By finish cutting to size on the mill i was able fix my error and the pins were perfectly aligned. The cutter in the picture is a boring head that has a screw that kicks the cutter off center, you could start with a 1/2" hole just big enough for the cutter to get inside of and bore a perfect hole up to 8" . These little machines will start to chatter way before that and the more offset the cutter the less cut you can take but it can be done. I have always wanted a lathe and got a old 9" atlas a couple years ago and that led to to learn about milling. To think back of all the crap i have somehow managed to put together and repair over the years without those tools makes me wish i have bought them years ago.

 

[MarkStewart]

Ok, thanks for the reply. I am building a small tow behind backhoe. I'm using a drill press and bi-metal hole saws to make the required holes. It is far from precise, but close enough for what I need at the moment. I am definitely interested in buying a lathe or other machine so I can do more accurate work. I'm hoping to find a smaller one that I can learn on. Thanks.

 

[zmansmac]

Nice job on the build. I like the quick attach feature and may have to work on that for mine. I built a ripper for my hoe last year and discovered it's the best way to remove stumps so I'm sure you can't wait to try it out. Like you, I used a box blade scarifier I bought at TSC. My only comment would be that it appears your teeth are angled to cut on a downward motions. All the rippers I've seen cut on the upward motion which makes sense since you are pushing against the ground and not lifting the machine.

 

[bandaidmd]

good catch on the teeth i noticed that too....right after i sat the cutoff wheel down and stood back to admire my work. lol It is what it is at this point.

 

[bandaidmd]

Ok, thanks for the reply. I am building a small tow behind backhoe. I'm using a drill press and bi-metal hole saws to make the required holes. It is far from precise, but close enough for what I need at the moment. I am definitely interested in buying a lathe or other machine so I can do more accurate work. I'm hoping to find a smaller one that I can learn on. Thanks.

Pick up a 12" drill bit that will reach both sides while it in the drill press as a pilot bit so your holes will be sure to line up opposite one another.