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| Subject | Re: Hickey experiences with 1" IMC |
|---|---|
| Newsgroups | sci.electronics.design |
| References | (3 earlier) <10qerje$27ptu$1@ehsjr.eternal-september.org> <10qfge7$31cb0$1@dont-email.me> <5lkmsk1e2g0kcmjcbrs3dhjnk4v2hnp4co@4ax.com> <10qfo71$33i59$1@dont-email.me> <u7rnsktir77avmick64umtig6h67fbmr8l@4ax.com> |
| From | Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> |
| Message-ID | <bd62140c-b29c-8eda-da90-e380c2c09c7d@electrooptical.net> (permalink) |
| Date | 2026-03-31 16:54 -0400 |
On 2026-03-31 12:24, Jeff Liebermann wrote: > On Mon, 30 Mar 2026 23:05:22 -0700, Don Y > <blockedofcourse@foo.invalid> wrote: > >> On 3/30/2026 10:21 PM, Jeff Liebermann wrote: >>> On Mon, 30 Mar 2026 20:52:40 -0700, Don Y >>> <blockedofcourse@foo.invalid> wrote: >>> >>>> On 3/30/2026 2:57 PM, ehsjr wrote: >>>>> On 3/30/2026 2:46 PM, Don Y wrote: >>>>>> On 3/30/2026 6:58 AM, joegwinn@comcast.net wrote: >>>>>>> On Sun, 29 Mar 2026 21:24:13 -0700, Don Y >>>>>>> <blockedofcourse@foo.invalid> wrote: >>>>>>> >>>>>>>> Is this going to be an exercise in futility? Or, just one of careful >>>>>>>> practice? (Ideally, something like a 4" radius) >>>>>>> >>>>>>> It may require a vey long handle to bend 1" that sharply. >>>>>>> >>>>>>> The conduit will want to collapse and/or kink, so packing it solid >>>>>>> with sand and capping it at both ends before bending is likely >>>>>>> necessary. >>>>>> >>>>>> Yeah, a colleague sent me a one word reply: "Don't" <frown> >>>>> >>>>> +1 >>>>> >>>>> See: >>>>> https://www.mikeholt.com/documents/freestuff/Hand_bending_conduit_and_tubing_by_Bill_Bamford.pdf >>>> >>>> I've a fair bit of experience with EMT (up to an inch) and IMC (half inch). >>>> >>>> But, with those, I have usually been looking for a channel for a cable; >>>> appearances only had to be "standard of workmanship". So, a saddle didn't >>>> have to be perfectly symmetrical, a Hickey could leave chew marks, etc. >>>> >>>> And, most times, you could just use a bender (because you WANTED/needed >>>> the gentle arc for cable pulls). >>>> >>>> I *just* want this to "look nice" -- EMT looks like crap and rigid (while great >>>> looking) is just way to hard to handle! >> >>>> It's just "a bent pipe" (no wires inside) >> >> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ >> >>>> PVC is too flimsy (though maybe if I *fill* it to get extra strength >>>> and stability...) >>> >>> Last year, I did some work on my house that involved replacing some >>> rat damaged old Romex wiring under the house. To save labor, we used >>> aluminum MC (metal clad) cable: >>> <https://www.homedepot.com/p/Southwire-12-3-x-100-ft-Solid-CU-MC-Metal-Clad-Armorlite-Cable-68583423/202316493> >>> <https://www.southwire.com/wire-cable/metal-clad-cable/c/c-mcmain> >>> Note that 12/3 means three #12 AWG wires plus a 4th green ground wire. >>> The wires were all copper with no CCA (copper clad aluminum) allowed. >>> >>> I initially wanted to use EMT. Because I was paying by the hour for >>> the work, I determined that MC cable was cheaper than EMT. Ignoring >>> my prep work and cleanup, it took 3 workers only about 6 hrs to >>> complete the job. EMT would have taken twice as long or more. EMT >>> would have looked much nicer, but I didn't want to pay for good looks. >> >> How many people would see it "under the house"? > > None. That's why I don't care about appearances. However, that > doesn't mean that I installed the MC cable with long drooping spans, > sloppy routing, and knots to take up slack. NEC requires the cable be > supported every 4 ft when exposed to potential damage and every 6 ft > when hidden behind a wall. Also, the cable needs to be supported at > least 18 inches from a termination point. I bought too many hangers, > so I used a smaller spacing, which also looks nicer. > >>> Another nice thing about using flex cable. If I make a mistake and >>> need to move the conduit, it's much easier with flex than with >>> anything that requires a pipe bender to move. >> >> I'm not using it as "wire carrying conduit" but, rather, as "metal pipe". >> And, even the "metal" aspect is negotiable. > > Sorry. I wrongly assumed you were using electrical conduit for its > originally intended purpose. I find it rather difficult to discuss > the selection of such things without knowing what you plan to do with > it. > >> I want to make a support member and it is easier to bend pipe than square >> stock or angle. And, where visible, pipe *looks* nicer. > > You want the pipe to support the weight of something yet be flexible > enough to be deformed by an electricians conduit bender. Unless > whatever you're supporting is fairly light, using EMT conduit, which > can be fairly easily bent, seems to be a little risky. > > I made that mistake in the 1960's. My father owned a lingerie factory > in Smog Angeles. I was volunteered to build and install some 10ft > garment hangers that were suspended from the ceiling. I used 3/4" EMT > conduit, because we had some left over from another project and it was > easy to bend the ends (to prevent the hangers and garments from > sliding off the end of the conduit). It worked well for light weight > garments, but the pipe bent when someone decided to hang some heavy > garments. I had to take it down, straighten the EMT, add additional > chain hangers, and put every back up. Larger EMT might have worked, > but adding more support points was easier. > > Not sure I want to know what heavy lingerie would be like. Cheers Phil Hobbs
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Hickey experiences with 1" IMC Don Y <blockedofcourse@foo.invalid> - 2026-03-29 21:24 -0700
Re: Hickey experiences with 1" IMC joegwinn@comcast.net - 2026-03-30 09:58 -0400
Re: Hickey experiences with 1" IMC Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-30 08:18 -0700
Re: Hickey experiences with 1" IMC Don Y <blockedofcourse@foo.invalid> - 2026-03-30 11:46 -0700
Re: Hickey experiences with 1" IMC joegwinn@comcast.net - 2026-03-30 16:02 -0400
Re: Hickey experiences with 1" IMC Don Y <blockedofcourse@foo.invalid> - 2026-03-30 13:22 -0700
Re: Hickey experiences with 1" IMC joegwinn@comcast.net - 2026-03-30 17:27 -0400
Re: Hickey experiences with 1" IMC Don Y <blockedofcourse@foo.invalid> - 2026-03-30 16:53 -0700
Re: Hickey experiences with 1" IMC ehsjr <ehsjr@verizon.net> - 2026-03-30 17:57 -0400
Re: Hickey experiences with 1" IMC Don Y <blockedofcourse@foo.invalid> - 2026-03-30 20:52 -0700
Re: Hickey experiences with 1" IMC Jeff Liebermann <jeffl@cruzio.com> - 2026-03-30 22:21 -0700
Re: Hickey experiences with 1" IMC Don Y <blockedofcourse@foo.invalid> - 2026-03-30 23:05 -0700
Re: Hickey experiences with 1" IMC Jeff Liebermann <jeffl@cruzio.com> - 2026-03-31 09:24 -0700
Re: Hickey experiences with 1" IMC Don Y <blockedofcourse@foo.invalid> - 2026-03-31 10:18 -0700
Re: Hickey experiences with 1" IMC Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-03-31 16:54 -0400
Re: Hickey experiences with 1" IMC Jeff Liebermann <jeffl@cruzio.com> - 2026-03-31 15:49 -0700
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