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survival
Big Wall climber
Terrapin Station
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Topic Author's Reply - Mar 1, 2012 - 08:38am PT
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Uhhh, ok Jefe.....splain me?
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survival
Big Wall climber
Terrapin Station
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Topic Author's Reply - Mar 1, 2012 - 08:56am PT
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MIB? You got MIB up on our ass? Holy f*ck man, now you've done it.
I'm so outta here, I'll call in a few weeks when the heat blows over....
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Norwegian
Trad climber
Placerville, California
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that chest is premium, sir.
what did you use for the handles?
i once found an 8" rusted to hell nail / spike
at the tourist camp below vernal falls.
actually my daughter found it below some
old park sign.
your drawer pull looks like some ancient relic going the way of FE oxide
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Scott Thelen
Trad climber
Truckee, Ca
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It's made out of old barn wood and bolts from the ranch that I live on.
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adatesman
climber
philadelphia, pa
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Most recent project is a front loading kiln for heat treating steel (and likely the occasional pottery project), which is needed for the ER16 Hurricane Drill Holder and drill bits I've been wanting to make. Has progressed a good bit from this point and now has legs and aluminum panels on each side, but is still needing a door and the electronics hooked up. Should hit ~2200degF in the 6.75" x 6" x 12" firebox in half an hour or so (~cone 10 for any potters out there) and will have the full ramp/soak PID temperature control (~3800W of power going into the heating coil at 220V). The bricks are 6.75" x 9" x 3" insulating firebrick rated to 2300degF with all joints fully mortared with refractory cement and a total of 4.5" of thickness on each side. Hoping to have it finally finished this weekend, as I'm very tired of working on it and need it finished to move back onto the drill project.
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TGT
Social climber
So Cal
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The trick especially for heat treating steel is going to be getting an air/heat tight seal on the door.
Get some ceramic fiber for a gasket, but handle it like it's asbestos.
Nasty stuff, but the only thing that will work.
Cone 10 is not a big deal for an electric furnace, but it's right at the limits of natural gas. Actually for treating steel a reducing atmosphere in a gas furnace would be just what you really want. You might want to consider some almond shells or other carbonizing packing to add carbon (Cyanide)and eliminate oxygen if you are treating steel.
Aluminum panels are going to cause an expansion problem if you don't let them float!
(ex industrial potter and kiln builder)
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adatesman
climber
philadelphia, pa
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Thanks TGT. And yup, all those concerns are taken care of; the panels are all cut 1/4" short from the outer frame to allow them to float yet still protect the delicate firebrick somewhat, proper gasket is on order from McMaster, and I'll be throwing a chunk of charcoal in while firing to scrub the some of the O2 to help prevent decarburizing. Mostly I'll be playing with PH stainless and AH steels so quenching isn't an issue, and while I grew up around this kind of thing the advice is appreciated (been a long time since I heat treated anything in an oven). Didn't think this would catch anyone's eye so didn't upload a current pic (mostly wanted to see if the FTP client I installed on the iPhone was working), but will update when it's done and I have some holders and drills ready to go (to Duece, Minerals and LukeM for testing).
EDIT- on a side note, this kiln only happened because Ebay spit back an industrial surplus place an hour away that had a literal pallet of the IFB they were clearing out at pennies on the dollar (hence the 4.5" walls...). Picking the up locally at that price cut several hundred dollars off the project...
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TGT
Social climber
So Cal
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The smallest kiln I ever built was 100 cu ft and gas fired, but I used to make Jigger tooling out of A2 and heat treat it in a similar size electric kiln.
The simple expedient to prevent oxidation was to use a sagger and bury the steel in silica sand.
Worked out great.
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BooYah
Social climber
Ely, Nv
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I wish I had an iota of the skill shown on this thread. I never built Jackshit in my life.
I tend to hire that out to pros. Like some of you folks. There are amazing things here.
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adatesman
climber
philadelphia, pa
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No offense BooYah, but where do you think these folks all started? 'Round about where you are... Got an interest? Dig into it, find someone to teach you the ropes and get on with it. (said in the most supportive manner possible... :-) )
Case in point, my neighbor has a passing interest in metalworking, so I gave him a couple good books and as he has time I guide him through projects of his on my lathe, mill and welder. While there's been a surprising amount of master work posted in this thread (IMO), a good deal of it is simply what's possible by putting your mind to it and developing some skill. Ask around and I'm sure you'll be able to find someone to mentor you in whatever it is catches your interest.
-a.
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adatesman
climber
philadelphia, pa
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Thanks again, TGT. That agrees nicely with what I've read on my machinist and knifemaking forums. Speaking of which, that's why I went with the 12" depth... I'm not happy with several of my (embarrassingly high priced) kitchen knives and plan on replacing them with something more to my liking.... Hundreds of dollars spend on the Wustof Trident set and what's my blade of choice? The $15 carbon steel Happy Chef cleaver I got at the local Korean market. Holds an edge like nothing else and the only time it lets me down is when a paring knife is really what's called for.
Oh, and FWIW the drill holders are going to be 17-4PH and the drills (and likely the striking piece on the holders) S7. Both should be dead simple in an electric kiln and make short work of the issues Minerals discovered in his beta testing of the drill holder.
EDIT- Oh x2- you make the second person I've met through climbing forums that did industrial furnaces. How weird is that?
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dogtown
Trad climber
Cheyenne, Wyoming and Marshall Islands atoll.
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I did a restoration on this bike before I left for the islands notice the single side rigid rear end and the old school Crager car rims. Also the front jug is a shovel head and the rear a pan head (for those of you that know Harleys) this bike was on one of the first biker build offs on the discovery channel and won against Billy Lane (a big time bike builder from Florida)
Maizanita; that some killer looking wood!
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adatesman
climber
philadelphia, pa
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Seems I'm piling all my projects into one week... Tonight's is helping the brother-in-law make a couple more of the meditation bench I walked him through over the summer. Kinda nice watching him get more comfortable with the tools and doing it all himself this time. I think he copied the general design from someone else, but for someone who had never made anything before not bad at all.
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Norwegian
Trad climber
Placerville, California
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log stringer and tread stairway,
driftwood / rock railing like the river floodwaters passed thru our loft and littered our life with hers.
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Reilly
Mountain climber
The Other Monrovia- CA
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Wow, Weege, that's totally beauteous! Might even pass code!* BwaHaHaHa!
* If ya substitute a soccer ball for their stoopid 4" ball. :-)
I can't tell you how many stairs I've 'built' to code only to start tearing
it out the minute the inspector leaves the premises after signing off on it.
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Reilly
Mountain climber
The Other Monrovia- CA
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The building code, a good thing in principle, has become a self-perpetuating
bureaucracy that mainly serves to drive building prices ever upward.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
"Dust thou art, and unto dust thou shalt return"
Painting tomorrow - Woo Hoo!
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Norwegian
Trad climber
Placerville, California
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i built it to osha stds,
200 pound outward force at mid-point
with less than 1" deflection.
im cool.
i fell outta 2nd floor story when i was 5 and i landed head first on a batch of discarded concrete,
like man-fall, mountain you better wear your helmet
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