--- Log opened Fri Jun 18 00:00:41 2021
00:41 -!- cpopell [~cpopell@c-24-22-170-81.hsd1.wa.comcast.net] has joined #hplusroadmap
01:33 -!- chiastre [~chiastre@user/chiastre] has quit [Ping timeout: 244 seconds]
02:31 -!- chiastre [~chiastre@user/chiastre] has joined #hplusroadmap
03:14 < streety> what size/shape of dugout and why won't an excavator be able to reach? access to site? depth?
03:36 < L29Ah[XMPP]> streety: the hole would be smth like 5x6x1m; because it's in a forest on a mountain slope
03:38 < fenn> pressure washer
03:40 < L29Ah[XMPP]> post hole digger sounds a lot more realistic tbh
03:41 < fenn> 1m is a vertical dimension?
03:41 < L29Ah[XMPP]> yes
03:41 < streety> is the issue the slope? There are excavators small enough to fit through doorways.
03:42 < L29Ah[XMPP]> the issue is heavy vegetation and uneven terrain
03:42 < fenn> well if you make it 2m you can stand up inside
03:43 < L29Ah[XMPP]> i'm not sure https://compactequip.com/wp-content/uploads/2018/02/GEHL-M08_digyard.jpg would be much faster than manual shoveling
03:43 < L29Ah[XMPP]> fenn: it will be 2m inside when the removed ground is put against the walls
03:43 < fenn> it would be much faster than shoveling
03:44 < fenn> oh i thought you were digging like a cave or hobbit hole
03:46 < fenn> one of my projects i never got around to was to build a cable hexapod with an earth auger drill on the end, to automatically drill out this sort of thing
03:46 < L29Ah[XMPP]> i'm thinking of something like iceland earth houses
03:47 < fenn> i guess that sounds better than "sod house"
03:47 < fenn> iceland!
03:47 < fenn> earth!
03:47 < fenn> your powers combined,...
03:47  * L29Ah[XMPP] doesn't understand much about the terminology
03:48 < fenn> it's the same thing
03:50 < L29Ah[XMPP]> cable robot attached to nearby trees sounds interesting but probably too involved to implement for a single dwelling
03:51 < fenn> even one degree of freedom (up/down) would reduce your back strain by an order of magnitude
03:53 < fenn> i had an electric post hole digger which was supposed to clamp onto your truck's battery
03:54 < fenn> you want a battery close by so you aren't running large current spikes over long wires, but you can steadily recharge the battery over time between holes
03:54 < fenn> or just use a gas powered auger i guess
03:54 < fenn> i'm a bit of a hippie
03:56 < fenn> the nice thing about augers is you can scale it down easily to suit your power source
04:04 < fenn> .g clay kicking
04:04 < saxo> https://www.bbc.com/news/av/magazine-36688479
04:06 < fenn> ok not really what i meant
04:10 < fenn> well anyway something like a jackhammer with a square shovel blade on the end to keep the dirt mostly in one piece instead of falling everywhere when you lift it out with a winch
04:11 < fenn> like |__|
04:56 < fenn> the advantage with compressed air or water jet excavation is you don't have to cut through roots or deal with rocks
04:58 < fenn> the air blast loosens the soil and then you vacuum it up
04:58 < fenn> requires a lot of power and a big air compressor
04:58 < fenn> (or a robot that runs unattended for days with a low duty cycle)
05:00 < fenn> water is a more efficient use of power but then you have to deal with the water and wet soil
05:15 -!- thedragon [~thedragon@user/thedragon] has quit [Read error: Connection reset by peer]
05:32 < fenn> "use a sawzall with a long demo blade to loosen up the soil"
05:35 < streety> also helps with any roots
05:36 < fenn> seems like it would get dull really quick, better to use an old blade for the dirt and a less old blade for the roots
05:39 < streety> fair point
05:46 -!- thedragon [~thedragon@user/thedragon] has joined #hplusroadmap
06:42 -!- cpopell [~cpopell@c-24-22-170-81.hsd1.wa.comcast.net] has quit [Quit: Connection closed]
07:38 < lsneff> .t https://www.bbc.co.uk/news/science-environment-57512229
07:38 < saxo> Nuclear energy: Fusion plant backed by Jeff Bezos to be built in UK - BBC News
07:38 < lsneff> About generalfusion
08:02 -!- drethelin [~drethelin@096-042-035-082.res.spectrum.com] has joined #hplusroadmap
08:16 < jb55> I heard generalfusion's design isn't really viable though. I remember watching an MIT talk on this: https://www.youtube.com/watch?v=L0KuAx1COEk
08:34 < jb55> watched this a few years ago but it looks like it lead to this arc reactor they are building https://en.wikipedia.org/wiki/SPARC_(tokamak) first magnet is supposed to be finished this month. fusion break-even/ignition this decade!?
08:46 < jb55> I guess ITER has higher output but I like the idea of a compact, "affordable" fusion reactor to run a bitcoin mine... one day.
08:49 < nmz787> lsneff: yep, now in a lithography CAD library team
08:49 < nmz787> fenn: actually I saw a video of people using essentially a pressure washer to excavate super rocky soil to make a trench
08:56 < L29Ah[XMPP]> link?
09:06 -!- thedragon_ [~thedragon@user/thedragon] has joined #hplusroadmap
09:08 -!- thedragon [~thedragon@user/thedragon] has quit [Ping timeout: 268 seconds]
09:09 -!- thedragon_ is now known as thedragon
09:14 < nmz787> L29Ah[XMPP]: https://www.youtube.com/watch?v=ur8nbEJxXD8
09:14 < nmz787> .title
09:14 < saxo> AMAZING AIR TRENCHING TOOL! Never shovel again! - YouTube
09:14 < nmz787> .title https://www.amazon.com/Air-Spade-HT138-225-SCFM-4-Feet-Barrel/dp/B00GK71BQO/
09:14 < saxo> No title found
09:15 < nmz787> "This unit would require a larger Air Compressor, 250CFM+ @90PSI"
09:15 < nmz787> 250CFM seems much too high
09:15 < fenn> it's basically a truck engine
09:15 < nmz787> huh, although the specs also says "‎225 Cubic Feet Per Minute
09:15 < nmz787> "
09:16 < fenn> it takes like a 2 inch air hose
09:16 < nmz787> I guess the advantage was this didn't hurt their tree roots
09:16 < streety> I remember seeing that - then the channel seemed to go all clickbaity
09:16 < nmz787> streety: oh, interesting, I haven't watched them in a while
09:17 < streety> that was my impression, perhaps they just had a bad spell. Early content is still interesting
09:20 < streety> I wonder if water would work better for larger rocks? Definitely more messy though
09:21 < nmz787> L29Ah[XMPP]: maybe a small tracked vehicle would work, like the bobcat mt50 ?
09:21 < nmz787> fenn: https://en.wikipedia.org/wiki/Two-wheel_tractor
09:23 < fenn> yeah lots of weird little vehicles
09:26 < fenn> the GY6 engine is commonly found on scooters and has a four stroke gasoline engine, integrated swingarm, and belt and pulley CVT
09:26 < fenn> it's small enough to be easy to bodge onto things
09:37 < nmz787> I got a ~50 year old gravely 5000 series (exact model unknown)
09:41 < nmz787> https://imgur.com/a/UH2puqy
09:42 < fenn> not as cute as the older ones
09:43 < streety> is the attachment for grass cutting?
09:43 < fenn> https://en.wikipedia.org/wiki/File:Motostandard_two-wheel_tractor_with_mowers_(1).jpg
09:43 < nmz787> yeah it's a "brush mower"
09:44 < nmz787> basically a 3/8 inch piece of metal underneath, not really sharpened at all
09:44 < nmz787> I've also got a tiller and "rotary plow" which is basically a propeller pointed down into the ground
09:45 < streety> whats the difference between tilling and rotary plowing?
09:46 < nmz787> the depth
09:46 < nmz787> plowing goes deep but doesn't break up the soil as finely
09:46 < streety> thanks
09:47 < nmz787> tilling can also be used just to clear weeds from walking paths between garden beds
09:47 < nmz787> https://imgur.com/a/4DobIVO
09:48 < streety> action shot - is that the rotary plow?
09:50 < nmz787> yep
09:53 < lsneff> nmz787: lithography cad? Huh, that’s neat
09:53 < nmz787> yeah, lots of learning and challenges
09:54 < nmz787> lots of spicy secrets
09:54 < nmz787> we're looking to hire, actually
09:54 < nmz787> https://jobs.intel.com/ShowJob/Id/2895250
09:54 < nmz787> .title
09:54 < saxo> Software Engineer Careers at Intel in Hillsboro, OR
10:05 < lsneff> Looks like fun
10:24 -!- drethelin [~drethelin@096-042-035-082.res.spectrum.com] has quit [Ping timeout: 252 seconds]
10:47 < fenn> oddly relevant to the previous digging discussion https://www.youtube.com/watch?v=1GV755adv08
10:47 < fenn> .title
10:47 < saxo> Masten's Rocket Mining System: How it Works - YouTube
11:06 < streety> the idea of a vacuum system in space seems odd. Could you combine the water and pressurized air discussed and stick the exhaust of a water rocket into the ground?
11:06 < streety> that would also provide the reduced duty cycle mentioned as an option
11:44 -!- yashgaroth [~ffffffff@2601:5c4:c780:6aa0:5c2a:13f7:93dd:c63c] has joined #hplusroadmap
14:32 -!- drethelin [drethelin@096-042-035-082.res.spectrum.com] has joined #hplusroadmap
16:21 -!- thedragon [~thedragon@user/thedragon] has quit [Quit: Leaving]
17:04 -!- yashgaroth [~ffffffff@2601:5c4:c780:6aa0:5c2a:13f7:93dd:c63c] has quit [Quit: Leaving]
20:41 -!- justanotheruser [~justanoth@gateway/tor-sasl/justanotheruser] has joined #hplusroadmap
21:15 -!- drethelin [drethelin@096-042-035-082.res.spectrum.com] has quit [Ping timeout: 268 seconds]
21:19 -!- drethelin [drethelin@096-042-035-082.res.spectrum.com] has joined #hplusroadmap
21:49 -!- drethelin [drethelin@096-042-035-082.res.spectrum.com] has quit [Ping timeout: 240 seconds]
--- Log closed Sat Jun 19 00:00:42 2021