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Posted by johnnytorch on April 25, 2008, 9:18 pm
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> What kind of trailer did you build?
(Warning: BIG pictures)
http://www.postimage.org/image.php?v=aVjpqL0
I did the trailer and the kid. Wife helped with the kid.
Today's bounty:
http://www.postimage.org/image.php?v=aVjtS70
http://www.postimage.org/image.php?v=aVjtZBr
Let the flames rise about not removing the head...now.
> So if 50% 3/16 would be ok? Maybe I should not use angle?
Sorry, I meant 50% greater. Maybe 5/16"?
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Posted by glyford@gmail.com on April 26, 2008, 7:22 am
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> Let the flames rise about not removing the head...now.
?!?? I can understand on a turret head, with the head way out on the
end of the overarm, but for a CNC? Why?
Note to Stryped: notice what he's using for hold downs--straps are
nice, the 3" ones hold pretty good, but when you really need to keep a
few tons in place, there's nothing like chains...
--Glenn Lyford
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Posted by johnnytorch on April 26, 2008, 9:38 am
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>
>> Let the flames rise about not removing the head...now.
>
> ?!?? I can understand on a turret head, with the head way out on the
> end of the overarm, but for a CNC? Why?
Why didn't I, or why was I worried about it? I've always heard you remove
the head for transport. I got the machines for a steal, with limited load
out time & resources, so I winged it. I felt comfortable about the load &
rigging.
>
> Note to Stryped: notice what he's using for hold downs--straps are
> nice, the 3" ones hold pretty good, but when you really need to keep a
> few tons in place, there's nothing like chains...
> --Glenn Lyford
That's really why I posted the pics, the seriousness of proper trailer
design. That sinking feeling in your gut just thinking about loosing this
load should keep you scared enough to do it right.
The only reason I used the web strap was to keep the shaper from scooting
forward when braking. Plus, I was out of chains. Web straps are good for
lighter, easy shapes to tie down. Loads of wood or steel stock. I'm
breaking the rules by using the strap at an angle. Should just be straight
over. SteveB has plenty of rigging experience; he can tell you more about
it.
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Posted by glyford@gmail.com on April 27, 2008, 6:50 am
Please log in for more thread options > Why didn't I, or why was I worried about it?
Why were you worried. I've heard of a lot of people flipping the head
over to get the height (and center of gravity for easier trailering)
down. If the trailer is stable and you don't need the height to get
under a door or whatever, why worry?
I could see, though, if you were worried about the forces on the
knuckles of a regular J-head. But even then, I think it's mostly a
judgement call thing. Some people support the head with a piece of
wood between the head and table. Others say that puts too much
pressure on the table jack mechanism.
Was out driving one day and saw a flatbed truck with a 1/2 dozen J-
heads on it. All had the heads on, upright, unsupported.
--Glenn Lyford
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Posted by John L. Weatherly on April 28, 2008, 9:12 am
Please log in for more thread options glyford@gmail.com wrote:
>> Why didn't I, or why was I worried about it?
>
> Why were you worried. I've heard of a lot of people flipping the head
> over to get the height (and center of gravity for easier trailering)
> down. If the trailer is stable and you don't need the height to get
> under a door or whatever, why worry?
>
> I could see, though, if you were worried about the forces on the
> knuckles of a regular J-head. But even then, I think it's mostly a
> judgement call thing. Some people support the head with a piece of
> wood between the head and table. Others say that puts too much
> pressure on the table jack mechanism.
>
> Was out driving one day and saw a flatbed truck with a 1/2 dozen J-
> heads on it. All had the heads on, upright, unsupported.
>
> --Glenn Lyford
Damn. I was feeling like a cavalier badass by flouting convention, too.
Oh, well, we got home safely. I was suprise that there wasn't the
slightest bit of settling/relaxing of the rigging.
This is the first time I have moved machine tools with my trailer. Forklift
to load and forklift to unload. NOT like the good old days of gantry and
pickup truck. This is getting too easy...
--
John L. Weatherly
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