home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!charon.amdahl.com!amdahl!rtech!decwrl!elroy.jpl.nasa.gov!nntp-server.caltech.edu!ccsf.caltech.edu!jack
- From: jack@ccsf.caltech.edu (Jack Stewart)
- Newsgroups: rec.woodworking
- Subject: Re: Metal Cutting Tools (was Re: Anyone cut metal with a circular ...)
- Date: 26 Jan 1993 19:13:02 GMT
- Organization: CCSF Caltech, Pasadena, CA
- Lines: 67
- Distribution: world
- Message-ID: <1k42fvINN9a5@gap.caltech.edu>
- References: <14340021@hp-ptp.ptp.hp.com> <16B5E12A88.EPLUS17@vmd.cso.uiuc.edu> <1k247bINNkds@gap.caltech.edu> <16B61126B9.EPLUS17@vmd.cso.uiuc.edu>
- NNTP-Posting-Host: laguna.ccsf.caltech.edu
-
- (* Much stuff deleted *)
-
- In article <16B61126B9.EPLUS17@vmd.cso.uiuc.edu>, EPLUS17@vmd.cso.uiuc.edu (Richard Engelbrecht-Wiggans) writes:
- >
- > Hi, I'm the one who bought the Milwaukee saw above. I agree that
- > it may not have been intended for metal working, by sometimes I
- > have projects for which nothing was designed. For example, I need
- > a very big pot for a big (18 feet tall, 10x15' wide canopy) tree
- > in our 2 1/2 story solarium. The local scrap dealer had a 38"
- > diameter double walled stainless kettle. In testing for leaks, the
- > previous owner had over pressurized the thing and blown the inside
- > liner inside outish. I got the 250 monster at 30 cents per pound,
- > took it home, and ran a cut around the outside layer just below the
- > rim to seperate the two pieces. (The scrap yard took back the 130
- > pound inner peice at full credit, as we had agreed.) I got a nice
- > stainless pot for the tree at under $50 including the cost of the
- > saw blades.
- >
- > I used my circular saw to make the cut, and a belt sander to
- > smooth it (and a cutting torch to cut the other, few connections
- > between the two layers.) What tools would you have used?
- >
-
- A grinder, a belt sander ( + other assorted tools ...).
-
- The last time that I had a job where I had to cut a lot metal was with
- a shower door that had to be replaced (it had shattered). The door
- was so badly corroded that it had to be cut away and the frame ground
- flat. I went down to a local tool rental store and renting myself a
- nice 9" grinder for about $20 (three day rental). I was able to slice
- through the door and grind the frame flat in less than 1/2 hour.
-
- I think that a grinder would probably have done the job with the
- kettle although a smaller (~3") grinder would be better for making
- more precise cuts. A grinder is an general purpose tool that does an
- excellent job on stone, concrete, etc. There may be better tools for
- cutting just metal. A cutting torch will also make good clean cuts
- but it probably also cut the inner kettle (which you did not want to
- do...). I've used a disk sander to sand bolts, nails, etc. with no
- ill effect. I would imagine that using a belt sander is similar.
-
- >
- > (Yes, I wear ear plugs, ear muffs, presciption glasses, goggles,
- > dust mask, etc, etc, and work on such projects outdoors on the
- > driveway so that there is plenty of ventilation.)
- >
-
- I didn't intend to suggest that anyone in this group has slip shod
- work and safety habits. I figure that everyone (in this group) has
- the good sense to wear safety goggles. In my experience, working with
- a grinder (espcially in confined spaces, such as a shower stall) is
- quite different and unlike working with wood tools. I figure that
- anyone who isn't used to it would be in for a surprise (and perhaps
- would be unprepared). Grinders are very loud. You need to wear high
- quality ear protectors (22db+). Also I normally wind up covered from
- head to toe in fine dust. Inexpensive dust masks do O.K. but you
- usually need to through them away after about an hour or so. And
- before I forget to mention, leather work gloves are a must to keep
- sparks and stuff off of your skin.
-
- ---Jack
-
- --
- Jack Stewart E-Mail: jack@CCSF.Caltech.EDU
- Caltech Concurrent Supercomputing Facilities, Phone: 818-356-2153
- Mail Code # 158-79, 391 S. Holliston,
- Pasadena, CA 91125. #include <std.disclaimer>
-