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RadioPassive posted:My big backup bank that can jump a car is a big thick brick of lithium. Chances are it's just a bunch of 18650s wired together
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Sep 8, 2020 16:30
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I've had it open, it's one of the rectangular lithium packs.
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Sep 8, 2020 16:40
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Renaissance Robot posted:My first and last digital radio had a slot in the back to take a bunch of D cells, but you could also buy a lithium pack that went in the same hole. Completely off-topic now, but what the gently caress is it with DAB radios somehow being more expensive than actual televisions that can also receive DAB? Are they basically relying on the fact that the only people who want a standalone radio receiver are 87 years old and just assume a new radiogram costs a week's wages?
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Sep 8, 2020 17:09
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I worked briefly at a battery startup where we made custom cells with a specialized chemistry. It involved dumping precise amounts of various powders into a big rear end industrial dough blender, then taking well mixed goop and running it through electric kitchen pasta rollers. After some hydraulic pressing, sonic welding and some other steps, we'd drop the stack in a little box and fill it with diluted KOH and put it on a test stand to watch it rapidly fall short of expectations. The KOH is stored in these huge 55 gallon drums with janky hand pumps for retrieval, but when it's being prepped for use they pull off the pump and drop in an electric propeller on a stick to keep it stirred up. Well one day the propeller got loose and began to rub the inside of the barrel until it eventually popped open, resulting in a beautiful laminar flow arc of skin melting liquid pouring out at full force. Fortunately someone was quick with the spill control kit and was able to contain it by dropping sorbent tubes and dumping hydrochloric acid all over it, but not before a few of us got splashed by it. I still have a speckling of scars on one arm. Sometimes you'd get a drop or two on your shoe and not realize it until you were halfway home and felt a strong burning sensation on the top of your foot. None of that was half as bad as they time I rolled my bike into the shop to mount a Givi Monokey top case to my motorcycle. Now THAT was a nightmare.
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Sep 8, 2020 22:10
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goddamnedtwisto posted:I've seen USB-charged batteries in AAA and AA, but never C and D, which is weird. Internally they're just normal lithium cells and overload protection (with like you say a step-down transformer), I wonder if it's something to do with the amount of potential current that anything using C or particularly D batteries might draw being a problem? I just got an Eneloop rechargeable AA pack for work, and it includes these things that look like pill bottles with metal nipples sticking out, you fit one of the rechargeable AAs in there, and it makes it fit in a C or D hole.
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Sep 8, 2020 23:47
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Slavvy posted:I had to get some for a child toy last week. Took three shops before I found a packet that wasn't out of date. Coydog posted:What do you think a millennial is, exactly? HenryJLittlefinger posted:Even for younger millennials, flashlights and radios and poo poo all ran on Ds when we were young. Lithium batteries and usb charging is an extremely recent thing, relatively speaking. Guys I'm sorry. I was just shitposting. I am a millennial. I am well aware of what D-cells are. But I don't have any children so I have no idea if modern kids toys still use batteries like that.
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Sep 9, 2020 00:10
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Elviscat posted:I just got an Eneloop rechargeable AA pack for work, and it includes these things that look like pill bottles with metal nipples sticking out, you fit one of the rechargeable AAs in there, and it makes it fit in a C or D hole. Please don't put batteries in your d hole.
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Sep 9, 2020 00:25
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MetaJew posted:Guys I'm sorry. I was just shitposting. I am a millennial. I am well aware of what D-cells are. But I don't have any children so I have no idea if modern kids toys still use batteries like that. I read an unhealthy amount of ADVRider so when I see the word millennial on a forum I just assume the worst.
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Sep 9, 2020 01:53
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Elector_Nerdlingen posted:Please don't put batteries in your d hole. Cycle pictures and videos: sticking C's in your D-hole ITT
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Sep 9, 2020 02:20
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I have a bunch of c and d cell Maglites I've picked up at thrift stores for a buck or 2. I just buy the led upgrade bulbs. Not the brightest lights but indestructible and if you take the batteries out you have a breakerbar extension for tire changes.
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Sep 11, 2020 05:02
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Just a normal day on the West Coast.
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Sep 13, 2020 00:51
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https://www.youtube.com/watch?v=Ztugr9L5mwk this is so stupid I kind of want one
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Sep 13, 2020 01:59
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Holy poo poo, I have a particular affinity for centrifugal pumps, and that makes me want it bad.
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Sep 13, 2020 02:11
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Dang, there's that much air in the mix? Is that normal?
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Sep 13, 2020 02:48
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RadioPassive posted:Dang, there's that much air in the mix? Is that normal? Cavitation, perhaps?
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Sep 13, 2020 03:03
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FBS posted:https://www.youtube.com/watch?v=Ztugr9L5mwk I think it's available here: https://www.aliexpress.com/item/4001023191822.html
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Sep 13, 2020 03:06
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Here4DaGangBang posted:Cavitation, perhaps? I thought that too, but cavitation bubbles should collapse immediately in the discharge of the pump
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Sep 13, 2020 05:04
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I think it's both cavitation and a bunch of air in the system, you can see lots of bubbles coming down the intake pipe. If my bike was closer to needing a coolant service I'd be all over this and I might order it anyway just to have it on hand when the time comes.
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Sep 13, 2020 05:42
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The person filming that video probably literally just installed it, started it and filmed it. You would have to do an awful lot of convincing me that a plastic water pump cover off aliexpress wouldn’t just crack within the first 10 miles That’s an awful lot of heat cycling and vibration to trust to Chinese plastic
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Sep 13, 2020 15:58
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Made this a while ago for the minimoto racing club in Washington state. Follow us and then put slicks on your kid's dirt bike so you can race with us. https://www.instagram.com/p/B-w62CwH9Ks/
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Sep 15, 2020 20:44
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Slim Pickens posted:Made this a while ago for the minimoto racing club in Washington state. Follow us and then put slicks on your kid's dirt bike so you can race with us.
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Sep 15, 2020 21:45
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You can crash with comfort https://streamable.com/eue4g1
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Sep 15, 2020 21:53
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Slim Pickens posted:Made this a while ago for the minimoto racing club in Washington state. Follow us and then put slicks on your kid's dirt bike so you can race with us. minimoto was a lot of fun-- are there any options these days for a 100-125cc with disc brakes that's not a grom?
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Sep 15, 2020 22:20
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Slim Pickens posted:Made this a while ago for the minimoto racing club in Washington state. Follow us and then put slicks on your kid's dirt bike so you can race with us. How did you shoot this? Looks really cool.
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Sep 16, 2020 06:37
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Razzled posted:minimoto was a lot of fun-- are there any options these days for a 100-125cc with disc brakes that's not a grom? TTRs converted to supermoto seem to be the most competitive in that class, with the try-hard team running a B bike with a built TTR which gives our RM85 a challenge. There's a Kawi Z125 racing but they're not on pace. Tires are huge; we're able to run 17s with Dunlops. Last season you could rent Ohvales but they're $7k new.  Edit: here's onboard from another TTR: https://www.youtube.com/watch?v=-wlseZip_xo GI Joe jobs fucked around with this message at 19:39 on Sep 16, 2020 |
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Sep 16, 2020 19:19
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Slim Pickens posted:Made this a while ago for the minimoto racing club in Washington state. Follow us and then put slicks on your kid's dirt bike so you can race with us. I was on board to do cascadia mini moto this year but well, you know. Ended up buying a grom to play in the city on, but am hoping to pick up a cheap ttr, 65 or 85 smoker. The prices were insane over the summer but hopefully they drop when they're just taking up space over the winter. Are you running 12" or 17" wheels? It probably depends on the track, but what seems the most competitive?
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Sep 17, 2020 01:41
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The opening scene of the new season of Archer heavily features a weirdly detailed first-gen katana. It is both very strange and very awesome    
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Sep 18, 2020 04:58
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Isn't that a gpz900 on the left too?
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Sep 18, 2020 06:50
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Looks like a 3D model so I'm gonna guess they bought them predone out of a model library, which would explain the level of detail
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Sep 18, 2020 12:17
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Could be. The archer animation staff is also known for being super into vehicles if all kinds and making them extremely realistic. It’s probably a mix of both
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Sep 18, 2020 14:53
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2-stroke 1/4 mile racing: https://www.youtube.com/watch?v=P2hgK-wZ1XA
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Sep 18, 2020 19:10
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ant mouth posted:I was on board to do cascadia mini moto this year but well, you know. Ended up buying a grom to play in the city on, but am hoping to pick up a cheap ttr, 65 or 85 smoker. The prices were insane over the summer but hopefully they drop when they're just taking up space over the winter. The quarantine threw a bunch of race series into chaos this year. Lots of cancelled races, and motoamerica couldn't have spectators on it's first year at the Ridge(which actually helped bring a few more teams to the last race). Fastest bikes are the CRF150s, with the 85cc 2-strokes just behind them, then ttrs, 65s, groms, pitbikes, xr100s etc. The grom might be fun to try in a minimoto sprint race, or find a few dudes and field an endurance team after wiring up and putting sliders on the grom. Our team runs 17" wheels with a fuckoff huge brake that came standard on much larger 450 sumos and 650 pegasos. It's not bad once you get used to it, but it's an instant endo button. Peep that prototype caliper adapter  SEKCobra posted:How did you shoot this? Looks really cool. Shoot the same corner on a tripod 30 times, then import the good shots to after effects and spend hours tracking, cropping, and syncing. I set up for another one at Mac track, gonna try to make it a seamless loop which'll push the limits of my after effects talents.
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Sep 18, 2020 20:58
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Slim Pickens posted:The quarantine threw a bunch of race series into chaos this year. Lots of cancelled races, and motoamerica couldn't have spectators on it's first year at the Ridge(which actually helped bring a few more teams to the last race). Fastest bikes are the CRF150s, with the 85cc 2-strokes just behind them, then ttrs, 65s, groms, pitbikes, xr100s etc. The grom might be fun to try in a minimoto sprint race, or find a few dudes and field an endurance team after wiring up and putting sliders on the grom. Oh so it's not the camera following the motion, but rather just motion added in post, that explains it. I was wondering how you could get such consistent motion and tracking.
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Sep 18, 2020 21:25
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The camera is still panning, he's just stabilizing it in after effects while cropping the shot a bit so that you can't see the border jumping around.
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Sep 18, 2020 21:32
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Yeah exactly. I didn't lock down my tilt so it got cropped pretty tight, and I had to junk a few otherwise good clips because my framing got too close to the crop marks. E: quick bts to show how much the frame is actually dancing around. https://streamable.com/i0x4ui Slim Pickens fucked around with this message at 22:42 on Sep 18, 2020 |
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Sep 18, 2020 22:10
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Ah right, gotcha. When I first saw it I was wondering if you used some kind of motion rig, but getting the riders to be consistent enough for that seemed improbable. Thanks for the breakdown!
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Sep 19, 2020 06:11
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https://i.imgur.com/6GmLvOI.mp4 I'm the little angled flat ground onto the bottom of the hitch assembly
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Sep 20, 2020 17:33
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Sagebrush posted:https://i.imgur.com/6GmLvOI.mp4
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Sep 20, 2020 18:54
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E: idk wtf
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Sep 21, 2020 01:27
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No lack of truck will stop me from living my life to the brapest
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Sep 21, 2020 04:20
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