[TowerTalk] How is the best way to bend rebar
K8RI on TowerTalk
K8RI-on-TowerTalk at tm.net
Sun Aug 27 00:46:08 EDT 2006
> In a message dated 8/26/2006 11:45:58 P.M. Greenwich Standard Time,
> jimlux at earthlink.net writes:
> I'm having a bunch of concrete work done for landscaping, and after
> watching the guys bending and cutting rebar to go around curves and such,
> I'm never bending rebar by hand or cutting it with a hacksaw again.
> Cutting rebar is a piece of cake using a 7 inch grinding blade in a
> saw. It takes about 15 seconds to reach about 2/3 through and then just
Folling this line of thought, try a "chop saw". They are available at Lowes,
Home Depot, and most hardware store at a fairly reasonable cost. Keep in
mind the size one can cut goes down in a hurry when cutting at an angle.
Mine has a 12 or 14" wheel. In 3 to 5 seconds it'll cut all the way through
a piece of 1/2" rebar. A few seconds more for 1 to 2" steel angle. It'll do
3" steel pipe in 10 seconds.
OTOH you do need to be careful about the stream of sparks coming off the
thing. They are more than just a shower of sparks. When it goes through
that much metal that fast there is a *lot* of heat given off in that stream.
The ends of the rod will be glowing cherry red.
I have a dust collection system in my shop which works very well. I was
cutting 1" square steel tube with a 1/8" wall. There is about 30 feet of 5"
flex hose going to the manifold. After about the 5 th cut I noticed the
first three feet of hose didn't look all that great. It didn't catch fire
and the sparks were cool by the time they got back to the collector, but
little was left of that first three feet except the spring steel wire that
gave the hose its shape. it did do a good job of keeping all the crud off
the floor though. Chop saws make a real mess!
Outdoors you'd need to keep it away from dry grass, leaves, and paper.
Roger Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest Debonair CD-2
www.rogerhalstead.com (Use return address from home page)
> snap it at the cut. I've done dozens of these and it's a sure fire way
> to go
> for the average guy working with rebar.
> Bill K4XS
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