Re: Shop Crane Revisited

On 12/22/2024 11:45 AM, Jim Wilkins wrote:

"Bob La Londe"  wrote in message news:vk9gnn$mv2t$2@dont-email.me...
 
Actually their individual load times four.  Just like any other caster.
Trailer jacks is not a bad idea, and I have seen this sort of thing done
on other equipment.  They are also available (at a substantial cost) at
much higher ratings.  Having seen a few failures generally the
limitation of most lighter ones is the plastic wheel.  I've seen them
break.
 
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I found tongue jack replacement wheels in a discount store to add on
with a longer axle.
 
Steel wheels aren't that hard to make. I welded crossed plates for
spokes into a slice of 6" stainless pipe, bored the center a snug fit
for pipe and welded it, then bored the pipe to accept needle bearings
cut from stainless welding rod. These are the oversized all-terrain
replacement wheels for my platform lift which is stored on sometimes wet
ground.
 
The HF 1300 Lb electric winch starts with a considerable jolt

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That could be an issue...
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and is

meant to mount on horizontal pipe with the included straps. The cable
would bunch up at an end instead of winding evenly if the winch was
somehow hooked to a trolley hoist and could tilt.

>
I am sure the winch could be hooked to a trolley even if mounts had to
be fabricated.  As to the cable, I've seen it done with a series of mini
rolling hangers.  It would/could bunch up, but it would roll out and
roll back just fine.  Te real expense if it were used often would be
replacing the cords with high flex cord.
>

I scratch-built a trolley with a flat bottom the winch bolts to. That
was the project behind my posting of a few years ago about boring a
recess to press in a bearing. Mostly I use this trolley with a chain or
lever hoist hung from a central eye bolt because the electric winch is
too hard to control precisely. When positioning a log or partly cut cant
on the sawmill I lift it only enough that it can be slid into position
and will stay there.
 
The electric winch was good for stacking logs because I could stand
clear in case the pile shifted. Stacking cut timbers with it was a
nuisance because it wouldn't partially support them while I aligned the
stack.
 

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Bob La Londe
CNC Molds N St