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From: Bob La Londe <none@none.com99>
Newsgroups: rec.crafts.metalworking
Subject: Re: Dirty Hands Clean Money
Date: Sun, 7 Jul 2024 17:40:44 -0700
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On 7/7/2024 5:18 PM, Jim Wilkins wrote:
> "Bob La Londe"  wrote in message news:v6f3f0$gm1m$1@dont-email.me...
> 
> On 7/7/2024 12:43 PM, Jim Wilkins wrote:
>> Nice 6-jaw without visible runout, what kind?
> 
> It is a Shars "Set-Tru" style.  I like it better than the Bison 4 jaw.
> It does have some run-out depending on the size of the stock.  Its only
> near zero at whatever stock size you dialed it in at.  I think I last
> zeroed at with a 3/4 gage pin.  Gets me within "about 3-4 tenths
> (0.0003-0.0004) when its running the size stock its zeroed to.  The
> spindle nose only seems to be ground to about .0003 so that's not
> horrible.
> 
> It wasn't crazy expensive, but it wasn't cheap import cheap either.  I
> think it was around $800-900 (+/-) with the D1-5 back plate.
> 
> I'd probably change chucks more often if they weren't so heavy and
> awkward.  I have an electric chair lift I have been thinking about
> converting into a bench crane for that.  I don't think I have a 12V
> power supply on the shelf big enough for it though.
> Bob La Londe
> 
> -----------------------------------------
> 
> A 12VDC supply that can be set to 13.6V and won't fry if connected to a 
> discharged battery could float charge an AGM that can deliver enough 
> current to operate the hoist.
> 
> The power bricks that came with my 12DC refrigerators were set too high 
> for a battery and overheated when connected to a discharged one so I 
> added these to limit the output voltage and current. :
> https://www.amazon.com/DROK-Converter-5-3V-32V-Regulator-Transformer/dp/B078Q1624B/
> 
> A 1/4 ton lever chain hoist isn't that expensive and has better fine 
> height adjustment than an electric hoist. Mine gets quite a bit of use, 
> there's a lot around the house within its capacity and it needs minimal 
> overhead clearance. Right now it's on an A frame to stack cut beams and 
> slabs.
> 
> I made a wood block to hold my heaviest chuck slightly below spindle 
> height to install or remove it. Rectangular strips of wood below and 
> above can align it without the trouble of copying the ways and chuck.

I haven't seen this particular chair lift operate, but those I have seen 
seem to have fine resolution and smooth motion.  They aren't like a 
commercial/industrial electric winch.

I've got a wide array of lifting things including several cable pullers, 
chain fall, etc.  I think the chair lift would bolt directly to the top 
of the tool cart (the new one) I keep next to the lathe.  I might need 
to put a load spreader of some kind inside.  The odds of the cart EVER 
being empty again and the leverage of a chuck causing it to topple are 
pretty slim.

The big plus is it would free up the space in my garage where the chair 
lift has sat ever since it was given to me without taking up much other 
useful space.  Hmmm... I might have to check over head clearance.  There 
is a shelf above the lathe.

I'm terrible with batteries.  I have a hard time keeping good batteries 
in my cars and boats.  In fact two of the batteries out of one of my 
boats are setting on the floor from where I unloaded them weeks ago 
after using them to run a winch out in the field.  I'd be quite happy to 
have a cord between the chair lift and the wall.

Yeah, I know.  Someday I may need that chair lift for a chair, but I 
hope that's going to be a while.

-- 
Bob La Londe
CNC Molds N Stuff


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