arborworks1
Treehouser
- Thread Starter Thread Starter
- #51
So How about the clamshell attachments for the BMG!!!
Bmg Clamshell Idea
- Thread starter arborworks1
- Start date
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J
Jamin Mayer
Guest
I like the idea a lot. However, the least amount of weight on the attachment as possible would keep the loader's lift capacity. Otherwise, the clam shell may decrease the lift capacity.
lumberjack
Young man on the go
I'm going to start on the design soon. Waiting on the drawings of the BMG from Dave.
Jamin, what the heck are you planning on picking up with the clam shell? My thoughts were using it for picking up loose debris, bulky not heavy.
Jamin, what the heck are you planning on picking up with the clam shell? My thoughts were using it for picking up loose debris, bulky not heavy.
tntree
Just slice it
Damm Carl, that CAD program is to Kool !!
Well many many year ago I built the Clamvan (this is only surviving photo, just b4 it got scrapped) this contraption would pull the front wheels way off the ground
. Set of log tongs did the grabbing (would of loved a BMG on it 
) gotta couple of years out of her -bed loaded down with butt pieces and a baldtire deathtrap cartrailer (no brakes) full of logs behind it 
Boy I hate DOT, but I am damm lucky to be alive with the loads this rig hauled
never got ticketed in the late 80's
Also I snapped the boom at the pivot twice B4 I made the ~2' insert into the lower pipe
Well many many year ago I built the Clamvan (this is only surviving photo, just b4 it got scrapped) this contraption would pull the front wheels way off the ground
. Set of log tongs did the grabbing (would of loved a BMG on it ) gotta couple of years out of her -bed loaded down with butt pieces and a baldtire deathtrap cartrailer (no brakes) full of logs behind it Boy I hate DOT, but I am damm lucky to be alive with the loads this rig hauled
never got ticketed in the late 80's
Also I snapped the boom at the pivot twice B4 I made the ~2' insert into the lower pipe
Attachments
tntree
Just slice it
I will get you some drawing's of the BMG arms
tntree
Just slice it
Hey I didn't have a cad program, let alone alot of smarts.
weren't many confuzers back then either . . . oh yeah there was pong
arborworks1
Treehouser
- Thread Starter Thread Starter
- #59
The van looks pretty high tech for some backyard engineering. If it saved my back I would rock it.
sotc
Dormant hero!!
not sure of the life span but bigrigs are using em on the fifth wheel hitches
arborworks1
Treehouser
- Thread Starter Thread Starter
- #61
Why not design it where you can switch to a slew, if the other doesn't hold up.
lumberjack
Young man on the go
What'd you use for a pivot? Pipe inside a pipe? Manual slewing also?
Jim, pillow bearings don't do well with the high axial loads. If I go that route, I'd use pins and bushings.
Cranes use PFTE/nylon slide pucks to move the boom in and out, under load at times, however the leverage against it isn't ideal.
Today I tried to get a price on a slew bearing, the extension they said to talk to never picked up.
I am considering a pair of tapered roller bearings to handle the radial loads and deminish the axial loads the PFTE would see.
Jim, pillow bearings don't do well with the high axial loads. If I go that route, I'd use pins and bushings.
Cranes use PFTE/nylon slide pucks to move the boom in and out, under load at times, however the leverage against it isn't ideal.
Today I tried to get a price on a slew bearing, the extension they said to talk to never picked up.
I am considering a pair of tapered roller bearings to handle the radial loads and deminish the axial loads the PFTE would see.
tntree
Just slice it
it was actually an old telescopic Hyd Ram section taht just happened to slide into a 6" pipe perfectly - yup slewed? her by hand
lumberjack
Young man on the go
You mean slew bearing or pivot like a backhoe? Going from PFTE to a bearing isn't a big deal, only the bolt patterns would have to be drilled and the mating surfaces machined flat (most likely on the machining, they aren't tolerant of deflection of irregularities).
arborworks1
Treehouser
- Thread Starter Thread Starter
- #65
Slew bearing.
darkstar
Rockclimber/ treeclimber
I love that Van, You've came along way Dave.
lumberjack
Young man on the go
You can get a bit more than 360* w/o a hydro rotato.
Right now I'm just playing with the design, but at least 190, 220 being better (with a hinge design). In a perfect world (thrust bearing), about 420*, enough to spin all the way around and then a bit more.
Right now I'm just playing with the design, but at least 190, 220 being better (with a hinge design). In a perfect world (thrust bearing), about 420*, enough to spin all the way around and then a bit more.
Dave Shepard
Square peg, round world.
Rotato, is that a cross between a rutabaga and a potato? I think that name is worth a million bucks, just invent some stupid doohinckus and sell it on TV. "The original Rotato! Only $19.95!"
I think that name is worth a million bucks, just invent some stupid doohinckus and sell it on TV. "The original Rotato! Only $19.95!"
lumberjack
Young man on the go
Haha .
What about a rose that makes potatoes? The potatos would taste like chicken, of course.
.What about a rose that makes potatoes? The potatos would taste like chicken, of course.
tntree
Just slice it
The slew is the hardest part of your boom design. My Clamvan manual swing was actually quite easy once the weight was off the ground.
It could swing kinda wildly, visual ~ like the boom on a sailboat clocking a guy of the boat
And if you hurry we'll throw another Rotato in for free!! just pay a separate exhorbitant shipping and handling fee
It could swing kinda wildly, visual ~ like the boom on a sailboat clocking a guy of the boat
And if you hurry we'll throw another Rotato in for free!! just pay a separate exhorbitant shipping and handling fee
Ax-Man
Don't make me chop you
You guys are getting very close to a design I have been thinking about for awhile now.
A rear mounted mini knuckleboom loader with a clamshell grapple mounted on the back of a one ton dump. Some one had a picture of a custom made rear mounted grapple on a bigger truck that could dump out the rear. I thought that was kind of neat if it could be made to fit a smaller truck
It would be great for loading those blasted stump grindings or other debris. If the truck can get close to the ground up stump. It would be better than hand shoveling. You could do a stump and clean-up in one trip.
For me this would work because we use a tow behind grinder and a one ton to pull it. I know for some guys this is not the way to go.
We do this now with my log loader if we have the room. Especially if it is a big stump and it is going to pretty much fill up the box of the truck. After the stump is done we either jack knife the grinder off to one side or disconnect it. A few pics of what I am talking about. A smaller truck with a smaller boom and clamshell grapple would be handy for doing this task.
A rear mounted mini knuckleboom loader with a clamshell grapple mounted on the back of a one ton dump. Some one had a picture of a custom made rear mounted grapple on a bigger truck that could dump out the rear. I thought that was kind of neat if it could be made to fit a smaller truck
It would be great for loading those blasted stump grindings or other debris. If the truck can get close to the ground up stump. It would be better than hand shoveling. You could do a stump and clean-up in one trip.
For me this would work because we use a tow behind grinder and a one ton to pull it. I know for some guys this is not the way to go.
We do this now with my log loader if we have the room. Especially if it is a big stump and it is going to pretty much fill up the box of the truck. After the stump is done we either jack knife the grinder off to one side or disconnect it. A few pics of what I am talking about. A smaller truck with a smaller boom and clamshell grapple would be handy for doing this task.
Attachments
SkwerI
Treehouser
Larry! I never saw the cab of your big truck before. It looks just like the original Rocky bucket truck!
Ax-Man
Don't make me chop you
Your right Brian. It never clicked on my end till I saw the pic of Justin and your old bucket together in the current which bucket truck to buy thread.
Got those chains you sold me mounted and ready to go. Still haven't cut with them yet. No clean wood in the wood pile right now.
It never clicked on my end till I saw the pic of Justin and your old bucket together in the current which bucket truck to buy thread. Got those chains you sold me mounted and ready to go. Still haven't cut with them yet. No clean wood in the wood pile right now.
arborworks1
Treehouser
- Thread Starter Thread Starter
- #75
An Isuzu or a F550 with a loader, One that could dump through the loader rear mounted would be trick.
Plus the truck would not disfigure lawns.
Plus the truck would not disfigure lawns.
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