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[00:02:24] <rue_shop3> my day is up
[00:02:29] <rue_shop3> I have to go to bed
[00:05:36] <Jymmm> Well, g'night then
[12:45:11] <Jymmm> rue_shop3: This doesn't seem right... If I fill a 55gal drum with 264 lbs of gypsum @ 0.26 BTU/lb, that's 69 BTU's of thermal mass storage, or am I missing something here?
[19:49:58] <rue_shop3> probably
[19:50:16] <rue_shop3> with 100 gal of water I can heat the house for an hour
[19:50:22] <rue_shop3> form 80c to 17c
[19:51:53] <Jymmm> Hmmm, damn. I was hoping it would be more
[19:53:03] <Jymmm> rue_shop3: I see these "rocket mass stoves" with their cob benches that say it'll keep warm for up to 30 hours.
[19:54:21] <Jymmm> rue_shop3: Can you look at this and tell me what you think of the "duct work" idea they are using?
[19:54:24] <Jymmm> https://www.youtube.com/watch?v=FrWtlf_4ny4
[19:54:32] <Jymmm> it
[19:54:54] <Jymmm> s basically 4" duct looped into/out of a green house sitting on top of a barrel stove
[19:54:56] <rue_shop3> oh drat I hvae to go shopping
[19:55:00] <Tom_L> Arrived at USPS Facility
[19:55:00] <Tom_L>
[19:55:00] <Tom_L> CHICAGO METRO
[19:57:25] <Tom_L> at least it's heading north
[20:01:10] <Jymmm> The delay will be when it hits the customs house
[20:04:03] <rue_shop3> its oing north :)
[20:04:14] <rue_shop3> hopefully it dosn't pick up $50
[20:07:40] <Jymmm> Nah, I might as wel just get a barrel stove kit
[20:12:07] <Tom_L> Jymmm you need a pattern for the hole?
[20:12:38] <Jymmm> Tom_L: Not if I buy the kit, no. The flange thing was for smaller pipe
[20:12:50] <Tom_L> http://tom-itx.no-ip.biz:81/~webpage/cnc/temp/Drum_flange.jpg
[20:13:01] <Tom_L> http://tom-itx.no-ip.biz:81/~webpage/cnc/temp/Drum_flange1.jpg
[20:13:03] <Tom_L> unrolled
[20:19:14] <Tom_L> that tool is good for laying out flat patterns for curved surfaces
[20:19:26] <Tom_L> like wing pannels etc
[20:25:55] <Jymmm> Tom_L: I appreciate the effort, but I need something I could print out and tape to the sheet metal.
[20:26:35] <Tom_L> i can make a mechanical drawing pretty easy
[20:27:14] <Tom_L> what you need is a projected image on the barrel face
[20:27:53] <Jymmm> I knows theres a simpe way to do it (either via PS or SVG), just no clue on the math =)
[20:28:19] <Jymmm> But, it's moot for now. I'll just get the kit and it already has the flange
[20:28:29] <Jymmm> Tom_L:
http://www.ebay.com/itm/Vogelzang-U-S-Stove-BK100E-BSK1000-Stove-Barrel-Stove-Kit-/271876741397
[20:28:40] <Tom_L> there's not that much 'oval' to that one really
[20:29:13] <Jymmm> I might need it down the road, but I need to get some heat in the shop soon than later =)
[20:29:59] <Tom_L> i've never used that tool but it's supposed to be very very accurate
[20:30:15] <Tom_L> the 3 icons associated with it to purchase are $10k alone
[20:37:58] <Jymmm> That
[20:38:27] <Jymmm> s soem expensive real estate... $3000 per 1/4"
[20:38:41] <Tom_L> heh
[20:39:06] <Tom_L> it's a purpose tool for sure
[20:41:39] <Tom_L> i just happened to remember it for this
[20:41:57] <Tom_L> there's other ways to get the result on that simple round surface though
[20:42:57] <Tom_L> i personally would lay the 4" pipe on some paper and sketch a circle and cut it out and tape it to the barrel where you want it
[20:43:15] <Tom_L> just a tiny bit cheaper approach
[21:07:04] <rue_shop3> ok so I have two aluminum brazing rods, $9 total
[21:07:06] <rue_shop3> :/
[21:07:27] <rue_shop3> see how that wroks
[21:07:44] <Tom_L> for what?
[21:07:52] <rue_shop3> aluminum brazing rods
[21:07:56] <rue_shop3> see youtube
[21:08:01] <Tom_L> to braze what?
[21:08:05] <rue_shop3> aluminum
[21:08:05] <Tom_L> i know what it is
[21:08:23] <rue_shop3> low temp
[21:08:27] <rue_shop3> curious to try
[21:09:04] <Tom_L> what's it use to cut the oxy layer on the aluminum to get a strong bond?
[21:10:08] <rue_shop3> dunno
[21:10:23] <rue_shop3> I'm gonna try it when I get a torch going
[21:10:44] <Tom_L> does it need an oxy torch or just propane?
[21:10:56] <rue_shop3> just propane
[21:11:01] <rue_shop3> low temp
[21:11:05] <rue_shop3> see youtube
[21:11:06] <Tom_L> i thought you had a tig setup
[21:11:10] <rue_shop3> "aluminum brazing"
[21:11:16] <Tom_L> i've seen it before
[21:11:17] <rue_shop3> I do, no gas, no HF
[21:11:19] <Tom_L> never done it
[21:12:26] <Tom_L> did you see those screenshots i posted?
[21:13:21] <Tom_L> pretty neat catia tool
[21:14:18] <rue_shop3> no
[21:14:26] <rue_shop3> I didn't see kats video either
[21:14:50] <Tom_L> http://tom-itx.no-ip.biz:81/~webpage/cnc/temp/Drum_flange.jpg
[21:14:55] <rue_shop3> ah your doing sheet metal stuff
[21:14:56] <Tom_L> jym's barrel
[21:15:02] <rue_shop3> yea, jesters doing some of that
[21:15:06] <Tom_L> http://tom-itx.no-ip.biz:81/~webpage/cnc/temp/Drum_flange1.jpg
[21:15:10] <Tom_L> will it unroll it?
[21:15:26] <Tom_L> to make a flat pattern exactly like when it's rolled up
[21:15:28] <rue_shop3> he's done a folded peice flattened out
[21:15:38] <Tom_L> for sheetmetal?
[21:15:43] <rue_shop3> he designed it unflattened
[21:15:44] <rue_shop3> yea
[21:15:49] <Tom_L> this tool is for complex surfaces
[21:16:01] <Tom_L> i just showed it in a simple form
[21:16:11] <rue_shop3> yup
[21:16:23] <Tom_L> cause he wanted a hole in the barrel
[21:18:31] <rue_shop3> the old cnc is exterting max effort to slot some alum for me
[21:18:49] <Tom_L> don't bust a bit because of chatter
[21:20:27] <Tom_L> i've not used the sheetmetal tools in sw or catia much yet
[21:25:55] <Tom_L> Heat treat foil tool wrap is used for the surface protection of tools, dies and parts during heat treating applications by preventing decarburization or scaling.
[21:26:05] <Tom_L> mmm was just thinking out loud
[21:27:05] <Tom_L> i knew they wrapped tools but wasn't sure why
