SparkFun Electronics Commentsurn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f82492024-03-28T09:18:38-06:00SparkFun ElectronicsCustomer #1547412 on Enginursday: Yeah, I found it on eBayCustomer #1547412urn:uuid:65547a12-59e0-41a4-f2eb-7613535ae0042019-09-28T02:27:57-06:00<p>Ah now you have to check Jay Leno's jet powered motorcycle. In a Car and Driver article he claimed after about 30 feet it feels about like the finger of God pushing you along. But this is probably the most in depth presentation he's done to date. https://youtu.be/WDhoYXw2IPc</p>
Customer #595381 on Enginursday: Yeah, I found it on eBayCustomer #595381urn:uuid:c5892b02-ba9d-6136-00f4-d44d671e05e62016-07-15T14:50:13-06:00<p>I'd put it a Ford Mustang. Add both a Turbo and Super Charger if possible. Take it to the nearest car show.</p>
nanogear on Enginursday: Yeah, I found it on eBaynanogearurn:uuid:d29122b4-250d-6257-dd12-929a40aa66582014-09-02T11:50:16-06:00<p>I want to see this engine working...</p>
Gaver on Enginursday: Yeah, I found it on eBayGaverurn:uuid:cc86a21c-741f-720a-891d-e81bf322626c2014-03-08T06:07:24-07:00<p>Two applications come to mind...<p>1) A Helicopter
2) A Snow Blaster</p></p>
Customer #528066 on Enginursday: Yeah, I found it on eBayCustomer #528066urn:uuid:2854a6c6-920f-fb61-35cf-04192b370e672014-03-07T10:43:52-07:00<p>Use it to generate power for my cult's compound</p>
macpod on Enginursday: Yeah, I found it on eBaymacpodurn:uuid:c1dfdfac-14b7-4722-1ffd-6835a0e51dd62014-03-04T20:26:16-07:00<p>Margarita machine.</p>
DemolishManta on Enginursday: Yeah, I found it on eBayDemolishMantaurn:uuid:a106c56b-06c9-cef0-a40a-398aa9848d7d2014-03-04T15:47:34-07:00<p>Hook a wok to the output shaft. Heat up the oil internally and cycle into the wok. This would be the ultimate in stir fry.</p>
Customer #138880 on Enginursday: Yeah, I found it on eBayCustomer #138880urn:uuid:e28a98ec-1023-e651-0f84-c82e45856fbc2014-03-03T09:55:20-07:00<p>I happen to be an engineer whose specialty is high speed turbine powered gearboxes! I work at a company that designs and manufactures machines that test helicopter transmissions so this is my bread and butter. I would be more than happy to help SFE come up with something to transmit the power from that bad boy. Shoot me an email!</p>
devin122 on Enginursday: Yeah, I found it on eBaydevin122urn:uuid:56dd8eff-efb7-4e17-6856-23bc9165aeaf2014-03-01T15:03:35-07:00<p>I'd double check my life insurance and build a go kart</p>
macetech on Enginursday: Yeah, I found it on eBaymacetechurn:uuid:720fe334-d886-3d35-2adb-7b818ff034b72014-02-28T21:47:06-07:00<p>A turbine-powered Tesla coil.</p>
Tim v2.1 on Enginursday: Yeah, I found it on eBayTim v2.1urn:uuid:b0458ac0-878c-1290-a5f2-2c739d3764502014-02-28T19:35:29-07:00<p>I was curious myself and poked around a bit - This looks awfully similar, might even be theirs: http://www.ebay.com/itm/331119044135</p>
Customer #242905 on Enginursday: Yeah, I found it on eBayCustomer #242905urn:uuid:1e901431-d740-56e2-ad0a-c491408d63f92014-02-28T18:36:43-07:00<p>I have some friends that build trebuchets for pumpkin chunkin (pumpkin throwing contest). I think this jet engine should throw a pumpkin.
-Matt</p>
Datalink on Enginursday: Yeah, I found it on eBayDatalinkurn:uuid:9c3b7a37-b950-8be1-b89f-ac529cc39e722014-02-28T17:22:05-07:00<p>I'd probably see if I could stuff it in a small vehicle like a snowmobile or 4 wheeler...<p>Alternately, could always use it to make a hydraulic Pick N Place, add a generator and you'd be able to power the electronics for it, the soldering oven, the stencil machine and the disco inspector.</p></p>
Datalink on Enginursday: Yeah, I found it on eBayDatalinkurn:uuid:c2897f5e-20aa-5e71-062b-372a270844272014-02-28T17:13:05-07:00<p>This thread is why I like shopping at Sparkfun... The folks behind your order, folks.</p>
SOISentinel on Enginursday: Yeah, I found it on eBaySOISentinelurn:uuid:1ecbb4e2-feb0-f635-3b3a-3e8d224504842014-02-28T14:57:49-07:00<p>12K rpm of ideally constant RPM.... That is darn fast for most industrial systems (most normal bearings are rated to 6Krpm max), so you're not going to get too far away from aerospace parts until you slow that thing down, probably 3:1 minimum.<p>A list of ideas from my fuzzy memory:</p><p>-Induction power supply (Motor-generator setup, although since you have 200 rps, you'll need a really high pole count generator to make this work as 10KW would normally be at least 10KHz, which was the upper end of the frequency spectrum for MG sets anyway)
-Skid mounted waterjet pump (good luck finding a pump that would keep up, most are designed for much lower RPM)
-Centrifuge (fun for pressure squeezing composites, or purifying uranium... er... strike that)
-Giant POV display of death (oops, my flywheel just disintegrated)</p><p>Just remember, belts do not like spinning anywhere near this speed, so any belt drive will either disintegrate or try and do an impersonation of a perfect circle then disintegrate at the current output shaft speed (remember your maximum FPM). Also, I really don't think your average snow mobile drive train could handle this speed. And it's only 15hp from your other conversations.</p></p>
bobski on Enginursday: Yeah, I found it on eBaybobskiurn:uuid:e14351e7-f21d-dff7-480c-98f6942ce1732014-02-28T14:12:15-07:00<p>Same thing with the starters: http://youtu.be/N_gpIAfOrdo?t=3m35s</p>
bobski on Enginursday: Yeah, I found it on eBaybobskiurn:uuid:557e133f-d357-8bdb-3f10-3961a80cad9e2014-02-28T13:39:11-07:00<p>The trouble with using turbines to provide mechanical power to cars is their rotational inertia and peak-y power band. They take too long to rev up, and only make respectable amounts of torque and power at high speeds. You could keep the engine at a high shaft RPM and apply fuel to keep it there as demand varies, but you would be wasting a lot of energy just pushing air around at low power levels (where automotive engines spend the great majority of their time) and would likely have issues with thermal cycling (uneven expansion and contraction of parts due to heating) as load varies.
If I were going to try to use this turbine in a vehicle, I would go for an electric transmission - use the turbine to drive a generator (though 2-4x the voltage of the original generator head), which in turn would power a traction motor. Tossing some high charge/discharge rate batteries or (very) large super-caps in there would smooth out spikes in demand - improved throttle response for the driver and smoother load transitions for the engine - a hybrid turbine/electric system similar to what is seen in the automotive industry today with internal combustion engines.</p>
Madbodger on Enginursday: Yeah, I found it on eBayMadbodgerurn:uuid:f81b4818-a604-417c-fd28-3cc5aa4e919d2014-02-28T13:32:32-07:00<p>Heh, I've done the same thing! http://www.vitriol.com/images/freecycle/turbine.jpg</p>
Number 6 on Enginursday: Yeah, I found it on eBayNumber 6urn:uuid:5bc528ad-70c3-7fca-9924-5ff5939cc5be2014-02-28T13:03:32-07:00<p>Well, it's interesting to see how a small portion the Sparkfun overhead is indirectly expended. An impractical use for this may be to power an oversized and obnoxiously loud leaf blower. However, I suspect the only likely practical applications relate to using with a generator (as it was designed and built for).<p>As to ...“You would find an engine like this on a turboprop plane”...:</p><p>I'm not a gas turbine expert, but I do have a commercial pilot rating for turboprop airplanes and turboshaft helicopters. The operation of gas turbine engines is generally limited to a range of high RPMs were the Brayton cycle can be maintained and managed. The gas turbines of turboprops and turboshafts often have centrifugal and axial stages along with a separate power turbine/section(Np) that is connected to the gear box for propulsion/lift. This allows the gas turbine section(Ng) to better establish and maintain combustion independent of the mechanical load. The Ng and Np sections rotate independently on concentric shafts. Also, many large aircraft have on-board APUs for start-up/backup power.</p><p>This gas turbine appears to be a single shaft with a combined gas/power function. As such, the stability of the output RPM greatly affects the stability of the combustion. Use with a generator would allow the engine to be brought to speed with little load and then for some control of the load placed on it. Any other application with significant initial or irregular loads could be highly problematic.</p><p>Good luck with the endeavor – If you haven't done so already, you may want find a similar jet turbine ground power unit in use someplace. Additionally, inspection and maintenance of gas turbines can require specialized training and tools.</p></p>
Madboy #82637 on Enginursday: Yeah, I found it on eBayMadboy #82637urn:uuid:22a5efaa-b42e-df3f-2eb0-31814779ba512014-02-28T11:26:32-07:00<p><a href="http://www.laboiteverte.fr/roulez-en-dynasphere/" rel="nofollow">giant monowheel</a></p>
bleudeciel16 on Enginursday: Yeah, I found it on eBaybleudeciel16urn:uuid:73cbd622-9d31-4130-55bd-39d8f059ac382014-02-28T11:11:35-07:00<p>More generic term would be turboshaft.<p>But anyways, is the 12k rpm at optimal speed? I'm guessing idle is lower?</p><p>If idle is low enough, you can just mate it to a modern automatic car transmission. (modern ones often can handle up to 1000hp stock, like the one that comes in a 2011+ mustang GT automatic)</p><p>It depends on how slow the output shaft spins at its lowest possible idle, but you might be able to use the stock torque converter. If it idles too high (1500rpm or higher), you could just replace the stock torque converter with a drag racing torque converter with a higher stall RPM rating. Drag cars often have huge cams with really good top end power, while sacrificing power in the low end. (which is what makes them idle so roughly) To avoid a rocky start in the low RPM's where the motor doesn't run well, they run torque converters that don't start transferring power until a higher RPM, like 2500 RPM's, for example. Something like that could potentially work well in your case. 12k rpm at the top end shouldn't be a problem at all. You'd just want a shorter final output. 4.60 gearing in the rear end would probably be optimal for a top RPM of 12k.</p><p>What comes to mind? BATMOBILE. Nuff said. Make it happen guys. If you mounted it at the rear of the car, you could even use a fuel pump to dump fuel into the exhaust section with an ignitor for an "afterburner". It would be for looks over function, obviously.</p><p>But you know what? This is sparkfun. Home of ELECTRONICS. Going mechanical would make sense for this engine, but I think hybrid drive would be cooler. Like how diesel trains work. Huge diesel motors that drive generators that then power torquey electric motors that power the wheels. They're VERY efficient. I imagine a gas turbine is probably nearly as efficient, if not more efficient, at its peak. Have it power a generator/alternator, then charge a battery bank an/or power an electric motor to drive the wheel(s).</p><p>Possibilities are endless. Gas turbines are exciting. I have no use for one but I want one. Something fierce.</p></p>
172pilot on Enginursday: Yeah, I found it on eBay172piloturn:uuid:b1adeedf-9783-191b-97eb-e9b446b44b312014-02-28T10:50:45-07:00<p>What you really want to worry about is when the ignition module FAILS to contain that lethal energy!</p>
scicior on Enginursday: Yeah, I found it on eBaysciciorurn:uuid:f0196136-8784-8ea2-eb87-409df71d979e2014-02-28T10:43:16-07:00<p>Don't ask me why, but I use to have a bad habit of collecting aircraft alternators... I had a couple dozen of them. The only two non-military ones I had were from a 737. Are you willing to provide a link to the manual you found for this engine? I'm too lazy to look it up myself, but if you do, I'll take a look to see if I ever had any alternators that bolt up to your engine. If I did use to own one, I know who owns them now and he may be willing to part with it. And it won't cost much; I sold them to him at pretty much scrap value (I needed the room for more hording :-) A bit of trivia; the air craft alternator shafts have a narrowed down portion to act as a mechanical fuse. If something shorted out the alternator, you don't want it to kill your engine and take down the plane.<ul>
<li>Steve</li>
</ul></p>
diz on Enginursday: Yeah, I found it on eBaydizurn:uuid:ce982a6a-5ca5-82a5-6c93-f1e2a9cb01882014-02-28T09:56:27-07:00<p>While typical automobile engine crankshafts might redline at 6-9K RPM, the turbines in typical automobile turbochargers spin at around 100K RPM or higher. Garrett's smallest turbo spins at 240K RPM. Piston engines can't handle much higher crankshaft speeds because of the mechanical and thermal stresses it places on the connecting rods, pistons, bearings, and cylinders.<p>Obviously, though, 12K on the output shaft is a lot to deal with and I think that's what you are trying to get at.</p></p>
Ranzani on Enginursday: Yeah, I found it on eBayRanzaniurn:uuid:5c92c467-88fc-a73e-3343-3e8d61a7b45a2014-02-28T07:47:02-07:00<p>A swamp boat, Overcraft or something in between.</p>
swestcott on Enginursday: Yeah, I found it on eBayswestcotturn:uuid:677763e6-431d-485f-1c33-e80aaa1df0e32014-02-28T07:42:13-07:00<p>DO you have the pin out for the cable connections looks like 3 custom cables with many pins. What would I build wow I have no idea but exploring and learning from this thing is well worth what ever you paid for it.</p>
doobie on Enginursday: Yeah, I found it on eBaydoobieurn:uuid:7dd169f1-441d-cc46-bf62-ed0b6554a8fb2014-02-28T06:55:33-07:00<p>I think it would make a good replacement engine for my plugin-prius. It certainly would recharge the batteries really quick and perhaps make it break 0-60 in 4 seconds?</p>
REDLemming on Enginursday: Yeah, I found it on eBayREDLemmingurn:uuid:d3fca18d-5c8b-6142-39cb-7e2b146d30dc2014-02-28T06:29:43-07:00<p>Just a couple of comments if you are looking at tweaking the controller board....
Mil spec stuff tends to have a sprayed on plastic coating to ensure moisture does not interfere with the PCB or bridge contacts during opperation.This may give off a very nasty gas if you heat it too much.
The solder is likely to be leaded because even some of the modern military stuff is allowed to be depending on usage due to the tin whisker problem amungst other things.<p>If you are going to be driving something with this engine beware of the balance of the shaft you connect to it, at high revs even a little impalance can destroy bearings and anything else connected.</p><p>I look forward to seeing what you guys come up with :-)</p></p>
OrganicOyster on Enginursday: Yeah, I found it on eBayOrganicOysterurn:uuid:3fa2976b-d0e0-e000-0e8b-3ff2574077682014-02-28T06:26:34-07:00<p>I saw a video on Youtube of a quadcopter with only one motor (was it a turbine ? I don't remember) and 4 rotors with adjustable blade pitch.
I think that it would be possible to make one with this engine :)</p>
Retroplayer on Enginursday: Yeah, I found it on eBayRetroplayerurn:uuid:8a5a0228-a6a0-38e8-9b6f-1e72923584eb2014-02-28T06:04:13-07:00<p>There is a possibility that I may be able to find those connectors, but for your purposes, it might be better to just rewire them to something easier to find.<p>"If you have worked around aircraft or military hardware.."</p><p>Every day</p></p>
OrganicOyster on Enginursday: Yeah, I found it on eBayOrganicOysterurn:uuid:cad58936-0c1a-e98e-731a-cbaa58e72f5d2014-02-28T05:56:53-07:00<p>I'd build a giant UAV...</p>
t_furf on Enginursday: Yeah, I found it on eBayt_furfurn:uuid:fe7f42d3-7659-a278-2b7a-6d19c01f11972014-02-28T03:40:17-07:00<p>Those little T58s in his jetboat are awesome, I want one.<p>I think the attribute defining the utility will be in the power/weight ratio. Get it running with your new controllers, see if you can dyno it in some wonky way, and then figure out the application based on what it realistically can do.</p><p>Best of luck!</p></p>
Han_Sojoe on Enginursday: Yeah, I found it on eBayHan_Sojoeurn:uuid:2b774e32-760a-870d-a324-93d3d847f4f62014-02-28T03:07:26-07:00<p>Lighter than air-craft!!! Build a frame with a hydrogen pocket. Mount this bad boy vertically with a large prop. I'm not sure how you are going to fuel this monster but if you could build a proof of concept lighter than air car, even if it only flew for a Wright brothers length flight, would be awesome.</p>
TwoNibblesMakeAByte on Enginursday: Yeah, I found it on eBayTwoNibblesMakeAByteurn:uuid:4f60bb90-fe32-b89f-ca48-66106db682342014-02-28T00:56:24-07:00<p>Like the M1 Abrams, for example. The turbine in the M1 is MUCH bigger. Like 1500shp.</p>
Bob_the_Cannibal on Enginursday: Yeah, I found it on eBayBob_the_Cannibalurn:uuid:8a33f701-98ce-307b-bd55-70f8cad9aa292014-02-28T00:14:50-07:00<p>Depending on the weight of the unit, I'd build the RC helicopter/plane/tank of doom. Failing that, I'd probably attempt conversion to {L,C}NG and find the generator head that matches it and have a decent backup power source. (LNG is cheaply delivered in my area.)<p>Also, +1 for the safety enclosure. Turbines letting go at 50k RPM have a high likelihood of being lethal or permanently injurious to bystanders. Some of those fragments could have vastly more kinetic energy than a rifle bullet or a machete swung with intent to maim. If the compressor blades are longer than the width of appendages you're not willing to part with, stick it in a box constructed of a minimum of half-inch thick steel. I'd also recommend carrying a pre-made tourniquet (like the Army's "Combat Application Tourniquet") so you can slip it over the stump of your leg/arm and torque it down to keep you from bleeding out if/when your turbine decides to take offense to being poked with a stick. Or the blades decide that they've had enough.</p></p>
Customer #475033 on Enginursday: Yeah, I found it on eBayCustomer #475033urn:uuid:6f9827f2-a590-1c50-fcde-74bf559dd6452014-02-27T23:16:45-07:00<p>Gear Reduction? More teeth on the primary means it could spin slower and turn the output faster. So at 12k rpm on the output wouldn't that imply 3k rpm internally? If the turbine had less teeth then the output then it would need to spin at 48k rpm to create the 12k rpm. This is 4:1 Primary to Secondary or Driver to Driven right because if it is then the math must be wrong.</p>
AntonG on Enginursday: Yeah, I found it on eBayAntonGurn:uuid:e12e2cf1-1306-0d86-aaad-06ff1a89ed7a2014-02-27T23:01:34-07:00<p>If you have any questions regarding the gas turbine governor please drop me an email. I write turbine control system logic for a living (governing and sequencing).</p>
BoulderNative on Enginursday: Yeah, I found it on eBayBoulderNativeurn:uuid:a54ddee5-5c8f-4aa2-9cc7-1fe9d8867bd42014-02-27T22:35:25-07:00<p>http://www.sears.com/hamilton-beach-wave-crusher-multi-function-blender/p-00829922000P?prdNo=8</p>
CF on Enginursday: Yeah, I found it on eBayCFurn:uuid:aa947750-0f31-4a72-48bb-686b6a871cf32014-02-27T21:19:10-07:00<p>Did you happen to catch the warning in the manual about the ignition module containing lethal amounts of energy? ;)</p>
CF on Enginursday: Yeah, I found it on eBayCFurn:uuid:5647b6ec-6682-dba2-a0bb-b5d4e7a9ee572014-02-27T20:06:44-07:00<p>How about a watchdog MCU? in the loop. They're cheap and turbines are expensive!</p>
Customer #382389 on Enginursday: Yeah, I found it on eBayCustomer #382389urn:uuid:f554baf4-fd66-fed3-95d4-be3f8fa89ae92014-02-27T20:00:37-07:00<p>ear plugs...</p>
free-bee on Enginursday: Yeah, I found it on eBayfree-beeurn:uuid:f1d0c6b1-f960-5c16-398f-34f528f3cb992014-02-27T19:31:14-07:00<p>Obviously you missed this:
http://www.ebay.com/itm/130574234473<p>Also: blender</p></p>
shardbearer on Enginursday: Yeah, I found it on eBayshardbearerurn:uuid:ccd1bb1e-48f0-7a12-f02a-fd9bc57fc7752014-02-27T19:31:12-07:00<p>Indeed, I've done that with compressed air.</p>
Customer #525561 on Enginursday: Yeah, I found it on eBayCustomer #525561urn:uuid:e80989a7-054a-22e3-1661-d98b09c487912014-02-27T19:03:17-07:00<p>While sticking this thing in a Prius would be the ultimate thumb-nose to the enviro-loons, I reckon the best application would be to a stonkin' four (or six) wheel drive. The gearbox would certainly be a great challenge!</p>
Hackberry Jake on Enginursday: Yeah, I found it on eBayHackberry Jakeurn:uuid:478bf1b4-0293-ee47-5042-0cf74e3b3aaf2014-02-27T18:29:15-07:00<p>I'm kind of a wood guy, so I would probably find out some way to put it on a portable sawmill. Whackin and Stackin!</p>
MrMark on Enginursday: Yeah, I found it on eBayMrMarkurn:uuid:602209de-5527-05c2-26c9-9d819275bd3f2014-02-27T18:16:59-07:00<p>Since you seem to be going exotic and expensive, why not replace the engine in a pruis / hybrid electric vehicle system with this? It's basically perfect. The electric motor provides the burst power, while the turbine provides a constant source (They don't like operating very much outside of their specified rpm's) of regenerative power for long periods when needed. You could even build a sparkfun boat with this setup if wanted.
(I'm currently trying to convince a relative that this is a good setup for an experimental semi truck)<p>There's a reason that you don't typically see turbines used outside aviation (high power/weight ratio), power generation, and ....and.... I got nothing else.</p></p>
RoboRake on Enginursday: Yeah, I found it on eBayRoboRakeurn:uuid:a7e7b280-a590-d63b-158a-a72b838602f62014-02-27T17:55:51-07:00<p>Quad-copter, 4 fans running on power generated from one power generator. Two seater, of course.</p>
Optimax on Enginursday: Yeah, I found it on eBayOptimaxurn:uuid:cb0c9e3b-cd3f-88b0-498a-3dea75d31ac62014-02-27T17:38:02-07:00<p>-CHAINSAW!
-Exo Suit: Use the turbine to run a hydraulic pump to make a "power pack".
-Scale model of an M1A2 Abrams tank with air powered t-shirt gun in the turret.
-CHAINSAW!
-CHAINSAW!</p>
Customer #141746 on Enginursday: Yeah, I found it on eBayCustomer #141746urn:uuid:c81b1109-68c4-5f5e-ac9b-edbe05f166832014-02-27T17:11:27-07:00<p>Add a vertical exhaust pipe and inject various colored methanol mixtures: http://leonardo.info/gallery/burningman_fire/schroll.html</p>
stilldavid on Enginursday: Yeah, I found it on eBaystilldavidurn:uuid:dfacc289-ac0e-768a-957e-ee2f82d2c4d02014-02-27T16:59:16-07:00<p>Makes up for the time we write code and cry.</p>
Customer #455106 on Enginursday: Yeah, I found it on eBayCustomer #455106urn:uuid:4286b517-16df-c6af-84f9-93777dbe004f2014-02-27T16:48:20-07:00<p>What would you build if you had a jet engine?
........A Jet!</p>
Erik-Sparkfun on Enginursday: Yeah, I found it on eBayErik-Sparkfunurn:uuid:9a99f618-572b-bfc5-899d-21b65a6548792014-02-27T16:45:48-07:00<p>And other times we just share animated gifs on IRC and laugh.<p>TMI?</p></p>
TheCentaur on Enginursday: Yeah, I found it on eBayTheCentaururn:uuid:28ef51f0-9032-c3bc-863c-1264c942932d2014-02-27T16:32:43-07:00<p>Hook it to the Flux Capacitor...</p>
Jamster on Enginursday: Yeah, I found it on eBayJamsterurn:uuid:89baf31b-23ff-852a-fbe9-75c58a871d6c2014-02-27T15:39:01-07:00<p>Make a ball float in mid air. Simple :D<p>Plus I'd have an excuse to sit mesmorised in your lobby :P</p></p>
brennen on Enginursday: Yeah, I found it on eBaybrennenurn:uuid:b548bbeb-1f21-0406-eb30-e208ef5d98e12014-02-27T15:35:13-07:00<p>Also sometimes we sit around having long philosophical arguments about comment system mechanics. (These usually devolve into me shouting about not wanting us to turn into reddit.)</p>
M-Short on Enginursday: Yeah, I found it on eBayM-Shorturn:uuid:1b928b50-55b1-7b86-dcb4-06d7e561d5a32014-02-27T15:33:05-07:00<p>Nope, we still haven't found a way to get our IT department to do that instead of posting comments all day :) Just kidding our IT department is great (and you never want to piss of IT!)</p>
CaseyTheRobot on Enginursday: Yeah, I found it on eBayCaseyTheRoboturn:uuid:e4572a38-3089-4df3-5d47-3a24db0546522014-02-27T15:32:02-07:00<p>If anything I would look into powering a large duct fan. Something like <a href="http://www.hovercraft.com/content/index.php?main_page=product_info&cPath=189_60_229_236&products_id=519" rel="nofollow">this</a> looks interesting.</p>
CaseyTheRobot on Enginursday: Yeah, I found it on eBayCaseyTheRoboturn:uuid:61193dd0-cfe7-31cf-9918-e27ed0bb14f02014-02-27T15:28:49-07:00<p>I too like to live dangerously.</p>
CaseyTheRobot on Enginursday: Yeah, I found it on eBayCaseyTheRoboturn:uuid:249e1250-bd7e-0930-b321-7fc083ae3eee2014-02-27T15:28:05-07:00<p>Oh and price, you're going to look at between $3-5k depending on quality and documentation. Anything bigger, add a zero.</p>
CaseyTheRobot on Enginursday: Yeah, I found it on eBayCaseyTheRoboturn:uuid:905cb2a3-8e8f-b7f7-bfce-8555ec741fbf2014-02-27T15:26:52-07:00<p>I actually reached out to him for advice but I got no reply :( I learned about control wire from his vids. Awesome stuff. I want to know where he gets his engines.</p>
CaseyTheRobot on Enginursday: Yeah, I found it on eBayCaseyTheRoboturn:uuid:a8656c40-0cc7-3c36-0488-c1316a3ec7802014-02-27T15:25:34-07:00<p>It is a concern of mine. The original controller is an 8051 based micro running at 8mhz. I'm hoping that 16mhz with a pro-mini would suffice, but I have an STM32 board ready to take over.</p>
CaseyTheRobot on Enginursday: Yeah, I found it on eBayCaseyTheRoboturn:uuid:87b43f96-9255-dc31-cb40-0f5e43b90a002014-02-27T15:23:18-07:00<p>That's another post... Sooon...</p>
WarpedHumor on Enginursday: Yeah, I found it on eBayWarpedHumorurn:uuid:d24e399d-b6af-2f71-e3be-09c8a33c47ff2014-02-27T15:23:03-07:00<p>get 3 more and make an extreamly cool quad copter.</p>
Customer #240081 on Enginursday: Yeah, I found it on eBayCustomer #240081urn:uuid:0589fc39-9758-1b7f-cf40-53fd91bd6ced2014-02-27T15:10:28-07:00<p>This needs to power the weapon on a BattleBot!</p>
DaveAK on Enginursday: Yeah, I found it on eBayDaveAKurn:uuid:f7000809-4c5d-080e-25e0-525dcb7d24812014-02-27T15:05:27-07:00<p>I would continue to build upon my reputation .... :D</p>
Pearce on Enginursday: Yeah, I found it on eBayPearceurn:uuid:5dc0b1cd-285e-190e-fd55-bd97b91c155a2014-02-27T15:02:04-07:00<blockquote>
<p>What would you build if you had a jet engine?</p>
<p>Lotus 56B</p></blockquote>
hazmat on Enginursday: Yeah, I found it on eBayhazmaturn:uuid:cf6bd44b-1ab7-0dd9-b434-e14c74a4ec812014-02-27T14:59:20-07:00<p>I met a gentleman that built turbine controls for model aircraft and drones that used a Microchip dsPIC30. Turbines are amazing, remember to keep the control loop very quick- things can go very badly very quickly, it would be a shame to see this destroyed by a momentary lean condition.<p>I am clearly quite envious that I missed this auction- may I ask what it runs for (the turbine sans generator)?</p></p>
Customer #152231 on Enginursday: Yeah, I found it on eBayCustomer #152231urn:uuid:343809b0-e877-a415-8df5-fe55a94cf7dd2014-02-27T14:54:21-07:00<p>If I had an engine like this, I would like to build my dream power plant for an automobile. Basically using this engine for what it was intended, I'd have it hooked up to an alternator and battery bank, and then replace the engine in a car (likely a junker with everything in working order but the engine) with a high-torque DC motor. Largest. Engineering project. Ever. But the concept of a turbine-electric vehicle has intrigued me for years. Someday perhaps.....</p>
LED addict on Enginursday: Yeah, I found it on eBayLED addicturn:uuid:d6dbf225-c1ea-5af8-b2ca-6b39ef5f79482014-02-27T14:46:40-07:00<p>I want a job at Sparkfun.</p>
t_furf on Enginursday: Yeah, I found it on eBayt_furfurn:uuid:54e8ec0f-3b47-c070-0875-d4e680a57de42014-02-27T14:40:19-07:00<p>For the gearheads in the group, <a href="http://www.youtube.com/user/Agentjayz" rel="nofollow">check out this guy</a> on the 'tubes for more jet pr0n.</p>
AsaJ on Enginursday: Yeah, I found it on eBayAsaJurn:uuid:8a1a1c80-5e5e-c21b-5f66-c79d0be256732014-02-27T14:07:20-07:00<p><a href="http://en.wikipedia.org/wiki/Multimachine" rel="nofollow">Multimachine</a>. Adding CNC capabiliies via microcontroller or development board of course. Or some kind of universal adapter/mechanical power transfer to drive every tool in the shop, <em>simultaneously</em>. edit* I realize that is what electricity does, but it's just not as cool.
A 150HP Dremel, Oh yeah!</p>
Customer #375102 on Enginursday: Yeah, I found it on eBayCustomer #375102urn:uuid:7ca8cbdd-7564-9d39-1e9c-55df810f1e6f2014-02-27T14:01:27-07:00<p>I think I would go for a Series Hybrid Car.
I can't imagine the quality of the gearbox you will need to take power at 12k rpm, but you might get a flat belt to couple it to a DC generator and charge your car batteries. A small car only needs about 15 horsepower to cruise down the highway and the batteries can give you the power you need to accelerate.
I would figure out if the thing is energy efficient first.</p>
horack on Enginursday: Yeah, I found it on eBayhorackurn:uuid:679ebdd8-86c7-438a-cc77-b1f53f9299722014-02-27T13:51:48-07:00<p>How about using it to power the compressor stage for a real (axial) turbojet so you can actually get thrust ?</p>
Stein on Enginursday: Yeah, I found it on eBaySteinurn:uuid:67dc59f3-47e4-67cf-4088-71707332db6c2014-02-27T13:41:31-07:00<p>There is only one possible use. A jet powered air raid siren!</p>
CaseyTheRobot on Enginursday: Yeah, I found it on eBayCaseyTheRoboturn:uuid:99afffa7-da4f-e2a4-06dc-600d3a8a5fa22014-02-27T13:22:01-07:00<p>That might be where the 150hp number came from. The engine consumes about 23.6kg/hr or roughly 51.92 lbs/hr. Multiply that by 3 and you get about 150. I haven been also trying to determine power numbers by using some standard jet engine power calculations, Fuel + Air burned multiplied by the velocity of the exhaust. It is proving difficult because that is generally used for axial flow turbines.</p>
Customer #381075 on Enginursday: Yeah, I found it on eBayCustomer #381075urn:uuid:35f56fee-236a-c84e-ca45-4598d49516262014-02-27T13:15:21-07:00<p>High-speed autonomous lawn mower.</p>
HelicopterGuy on Enginursday: Yeah, I found it on eBayHelicopterGuyurn:uuid:8a6940cb-4b23-c5b7-d329-d711533ac78b2014-02-27T13:14:54-07:00<p>What would you build if you had a jet engine?<p>And, ladies and gentlemen, the winner of this year's AVC in all three classes is...</p></p>
ChrisBob on Enginursday: Yeah, I found it on eBayChrisBoburn:uuid:2f5b4fab-0779-fa45-d4c8-69d9e10f9d712014-02-27T13:14:30-07:00<p>Do you have the power curve for this unit? From what I remember from my turbine lab in college (working with a helicopter APU) you need a pretty serious starter motor for a turbine, and they really want to run over a small speed range. My car engine runs happily from 2-6k RPM, but if your turbine probably has a range of something like 46-50k, and might not even produce enough power to keep itself running until 30k or so.<p>And I am sure the manual says JP-8, but pretty much anything that burns should work. I would start with kerosine if you don't want to drag gas cans to the airport.</p><p>Some people say they aren't efficient, but they are just thinking about it wrong. Their fuel efficiency might be low, but their volumetric efficiency is great!</p><p>Does anyone know if a Tesla, or a Prius will let you charge while driving?</p></p>
Customer #381075 on Enginursday: Yeah, I found it on eBayCustomer #381075urn:uuid:435d589e-ee37-4403-cccf-db46fc702c6d2014-02-27T13:12:30-07:00<p>Obviously then it's time to upgrade to darts.</p>
Elijah on Enginursday: Yeah, I found it on eBayElijahurn:uuid:650e6410-708b-4ec0-a59d-e0b34256eef02014-02-27T13:11:53-07:00<p>There have been been lots of successful land vehicles using (far bigger) gas turbines, it's definitely what I'd use it for.</p>
kfitch42 on Enginursday: Yeah, I found it on eBaykfitch42urn:uuid:67672133-57ee-37cf-bead-1e072b787f0a2014-02-27T13:05:49-07:00<p>http://www.jaylenosgarage.com/segment/under-the-hood/mtt-y2k-turbine-superbike-1/#item=66519</p>
Elijah on Enginursday: Yeah, I found it on eBayElijahurn:uuid:e32c5b0a-4f88-eea5-ff5b-a79ac0bae00d2014-02-27T13:04:59-07:00<p>That would take all the fun out of it!</p>
Customer #463537 on Enginursday: Yeah, I found it on eBayCustomer #463537urn:uuid:643396e0-e4e4-98a6-41ed-832435781bc82014-02-27T12:49:41-07:00<p>So far as horsepower goes, 10kw -> ~13.5 hp. The conversion is about 743 watts per hp. Don't fuss too much about the last couple of figures. I've seen a variety of conversion numbers around 750 watts.<p>So, given generator losses, shaft horsepower will be in the close neighborhood 15 hp.</p><p>Another useful way to get a ballpark figure for horsepower is to use around a third of a pound of fuel per horsepower hour. This works for piston engines, no real guess as to what this little turbine might do.</p><p>10kw -> ~350 amps at 28 volts. It would power a pretty honky stick arc welder, burn 3/8 rod at least.</p></p>
Zio on Enginursday: Yeah, I found it on eBayZiourn:uuid:0f0e64da-efb5-0532-bed1-46e8493306082014-02-27T12:38:11-07:00<p>LAME!!!! It isn't even powered by an Arduino or Raspberry pi!</p>
Tadpole on Enginursday: Yeah, I found it on eBayTadpoleurn:uuid:67b3eb43-ef64-c532-95fe-1aa0b21b9fb32014-02-27T12:16:11-07:00<p>When I started reading this article, I couldn't help but think about trolling and writing a comment like, "Hey can you post an arduino pinout and sample code?" Imagine my surprise when I later found out that will most likely be in the followup.</p>
brennen on Enginursday: Yeah, I found it on eBaybrennenurn:uuid:0a187529-91c8-a611-b3c4-ee7b6f158ba52014-02-27T12:14:45-07:00<p>My favorite variant of this was some text file where the guy went into all this detail about his small-town life. Totally fabricated, I'm sure, but it was a pretty good read. I am trying to figure out the right google incantation to find it...<p>Edit: <a href="http://www.wired.com/wired/archive/8.08/rocketcar_pr.html" rel="nofollow">Here we go</a>. Pretty close to the version I remember, anyway.</p></p>
Customer #361497 on Enginursday: Yeah, I found it on eBayCustomer #361497urn:uuid:34add28a-899b-e17d-ca91-cb336f0a2cbf2014-02-27T11:32:22-07:00<p>I have always wanted to use a turbine power unit like this to power a motorcycle. I know it would not be the fastest thing around, but how many tubine bikes are out there. The output shaft would be perfect to couple it with a harley transmission and there you go.<p>Please let me know where you got it, or what you searched under to find it on ebay...</p></p>
BeerCannon on Enginursday: Yeah, I found it on eBayBeerCannonurn:uuid:e2747d0b-2b88-07d9-3aaf-266edb5ed94e2014-02-27T11:28:25-07:00<p>the ultimate two-man fence post auger..</p>
Wags on Enginursday: Yeah, I found it on eBayWagsurn:uuid:4b85c575-10e8-b156-e624-90ad81b2cb3c2014-02-27T11:27:31-07:00<p>What about a cotton candy machine? The high output ones I just found on the Google said they spin at 3400 RPM. Maybe the sugary goodness would make up for the severe under utilization of this thing's available power...</p>
brennen on Enginursday: Yeah, I found it on eBaybrennenurn:uuid:1f9bc356-cf3d-d6de-adcd-196acb27842a2014-02-27T11:20:49-07:00<p>It wasn't that long ago that we had Nick W. using some kind of gas combustion chamber to drive Nerf darts. It turns out that beyond a certain point they just kind of disintegrate.</p>
mintymike on Enginursday: Yeah, I found it on eBaymintymikeurn:uuid:3abae571-6aa0-c70f-8975-6a3a435e08b32014-02-27T11:18:42-07:00<blockquote>
<p>What would you build if you had a jet engine?</p>
<p>Personally, I'd probably build a safety enclosure.</p></blockquote>
Pistachio on Enginursday: Yeah, I found it on eBayPistachiourn:uuid:0e9ba890-632b-0a9d-c5d7-04aa406ceb072014-02-27T11:18:35-07:00<p>Bring it to SXSW. Should work flawlessly as an e-textile jet pack.</p>
pursang360 on Enginursday: Yeah, I found it on eBaypursang360urn:uuid:d1b8642d-10af-d4bb-f284-89520c51ea712014-02-27T11:10:52-07:00<p>Sparkfun Atrium Defense System Mk-2.0</p>
CaseyTheRobot on Enginursday: Yeah, I found it on eBayCaseyTheRoboturn:uuid:252878ee-bd2f-6aff-0e80-cc7f9a9358162014-02-27T11:05:39-07:00<p>Well, <a href="http://en.wikipedia.org/wiki/Evel_Knievel" rel="nofollow">Evel Knievel</a> has been a role model for me.</p>
CaseyTheRobot on Enginursday: Yeah, I found it on eBayCaseyTheRoboturn:uuid:9875c1ce-2a83-f7ae-9e02-303ae5cfddca2014-02-27T11:02:43-07:00<p>Finally a paper shredder you can put staples through!</p>
CaseyTheRobot on Enginursday: Yeah, I found it on eBayCaseyTheRoboturn:uuid:0d40d842-7de1-1976-dd03-6fea8acb47522014-02-27T11:01:31-07:00<p>You can still find these with their original generators attached. I have seen them used for exactly that purpose. Knowing that, what would you make if you were not allowed to use it for it's intended purpose?<p>I don't know when/if we will be carrying these. They don't quite fit in the red boxes...</p></p>
RobertC. on Enginursday: Yeah, I found it on eBayRobertC.urn:uuid:1825a567-a2db-8a30-defd-b50159607d542014-02-27T10:54:55-07:00<p>Psh, just don't do direct-drive. Mount it off the back of the column and use a belt-drive. want.</p>
CaseyTheRobot on Enginursday: Yeah, I found it on eBayCaseyTheRoboturn:uuid:708577a8-0ba4-d848-3b11-d749a4660e1f2014-02-27T10:50:10-07:00<p>That would make for some lengthy tool changes.</p>
Bergamot on Enginursday: Yeah, I found it on eBayBergamoturn:uuid:561da429-d3d4-bb30-43a9-134ecc26c84f2014-02-27T10:46:47-07:00<p>A batmobile.</p>
stilldavid on Enginursday: Yeah, I found it on eBaystilldavidurn:uuid:67813293-b7a4-bf18-7d7f-4cce8b98fcec2014-02-27T10:45:43-07:00<p>Is there a way to downvote comments yet?</p>
stilldavid on Enginursday: Yeah, I found it on eBaystilldavidurn:uuid:b4a15fd6-e779-49cf-df15-dd5276d9a4582014-02-27T10:45:15-07:00<blockquote>
<p>What would you build if you had a jet engine?</p>
<p>Hovercraft. Duh.</p></blockquote>
Yodaob1 on Enginursday: Yeah, I found it on eBayYodaob1urn:uuid:e7b13bbd-460c-7e7e-905b-f43ad2f19fe22014-02-27T10:42:40-07:00<p>High powered Paper shredder!</p>
boba on Enginursday: Yeah, I found it on eBaybobaurn:uuid:30f5ec4b-385c-3582-b424-04532064b3d62014-02-27T10:36:42-07:00<p>"ideas for go-karts, jet-boats, and hovercrafts have been tossed around": using a jet engine for a land vehicle? Sounds like an old Darwin Award story.</p>
brennen on Enginursday: Yeah, I found it on eBaybrennenurn:uuid:fd86fcf9-5f0e-1ab2-4b1d-10545e3177072014-02-27T10:29:06-07:00<p>Dreadmill?</p>
XLT_Frank on Enginursday: Yeah, I found it on eBayXLT_Frankurn:uuid:f601cb6c-6798-ebc9-41a9-b372e751b1bf2014-02-27T10:28:26-07:00<p>Use a generator and output the power to two motors, one for each track of a form of ATV.</p>
RobertC. on Enginursday: Yeah, I found it on eBayRobertC.urn:uuid:5f620ab5-51cb-9af2-967c-3f1e60121a2a2014-02-27T10:21:15-07:00<p>Make a high speed spindle for a mill ;-)</p>