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Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Speeder Power.

Old 02-09-2023, 11:39 PM
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Default Speeder Power.

This is a spinoff about. Electric motors their windings, inverters, and more accurate testing for high performance ..We appreciate any positive or helpful comments but we wont fight here. This was truly for Micheal but it has branched off into a broad spectrum of things that he may or may not want in his thread so I did this. I have some other friends that may want to comment here. I love the forum because it has a great photo format and we have some good photos of things so we are not here to argue only to show what my Colleagues around the world are doing with the machines as well as what we just find interesting in general about power system performance. Inverters, Motors and batteries. We are having a little fun from time to time as we are supposed to be in some theoretical competition about what works best with Scorpions Powercroco but to me there isnt one I won a long time ago. So far my motors have been more efficient.


for the background from Michael thread this was my first post

..RCU Forums - View Single Post - new speeder (rcuniverse.com)

If the mods want to move is specifically to the electric motor section thats fine but I want it to be a thread that can touch any aspect of electric speed and performance plus anything else we find cool.

Thank you for your time and patience.
Hubert

Last edited by Clugh; 02-10-2023 at 12:20 AM.
Old 02-09-2023, 11:50 PM
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For a background Christian Lucas from LRK and Designer at Lehner Motoren in Germany may share from time to time. I will address him and Micheal because he is Ralphs friend from time to time as well so do not think I'm crazy...I'm teasing Powerceroco he's on this board anonymously now but his handle is Boho1 LOL!

Regards,
Hubert
Old 02-09-2023, 11:57 PM
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The springs, brushes, commutator, and armature are in excellent condition Chrisian. By far the nicest brushed DC I've salvaged, It will make a good load generator . It is 90 vdc 2 hp for those just tuned in.

Last edited by Clugh; 02-10-2023 at 12:07 AM.
Old 02-10-2023, 12:09 AM
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Old 02-10-2023, 12:13 AM
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Old 02-10-2023, 12:23 AM
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To see if we can water cool the brushes ill have to see if soldder takes to this surface . it certainly isnt copper.
Old 02-10-2023, 12:27 AM
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The red anodicised with black iron middle is his Lehner 3840 marine motor. He wound it 4 turns two layer parallel. No problem for this motor 42 Volt and 100 amps at 26000 rpm"


Last edited by Clugh; 02-10-2023 at 01:44 AM.
Old 02-10-2023, 12:29 AM
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Here is his brushed motor that is the world record seting boat motor from 1984. A real rewound Keller motor with a modified Armature and water cooling. 42 Volt @ 70 Amps measured during record run. 33000 rpm.

Last edited by Clugh; 02-10-2023 at 02:36 AM.
Old 02-10-2023, 02:37 AM
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No mercy a 15 hour print.
Old 02-10-2023, 02:39 AM
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Guess I better get rolling. While it prints maybe I can handle some of the electronic work. A draw the shudder assembly for the IR tach.
Old 02-10-2023, 02:42 AM
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Christian it will really start to look like something after these are complete. I have a great brim. you can always tell by the brin if the print will be worth anything. You can stop early to not waste material. I always use a brim when I can because it helps bed adhesion as well

Last edited by Clugh; 02-10-2023 at 02:54 AM.
Old 02-10-2023, 06:28 AM
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Old 02-11-2023, 06:16 AM
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Hi Christian and Micheal the prints come out clean. The bores leave just enough to finish precise with reamers. The printer nozzle is to large to do 4mm x .07 threads so you have to ream to bore size then tap. The PLA will hold a thread. The solid pillows are very strong now so soon you dont have to be bored with the rotor magnet questions which we know you can measure comparatively by placing a load on the motor and looking at the bell temperature. @ Micha Some type of thermal analysis is typically how Gurus determine pm losses. You also have the Helmholtz coil and a signal generator but I guess the Gurus do not know anything about that. RCN is boring without you Christian. You already told them that last year, about the rotor magnets, so to me they are slow. You might also like some of my other hand tools for finishing machined pieces. You need a good egde breaker kit. See the chamfer at the bores? You can detail that in the drawing and it will print it but you need to leave the hands something to do.

De burr the nonsense !

Hallo Christian, die Drucke kommen sauber heraus. Die Bohrungen lassen gerade genug übrig, um mit Reibahlen präzise nachzuarbeiten. Die Druckerdüse ist zu groß, um 4 mm x 0,07 Gewinde zu machen, so dass Sie auf die Bohrungsgröße aufreiben und dann tippen müssen. Die PLA wird einen Thread halten. Die soliden Kissen sind jetzt sehr stark, so dass Sie sich bald nicht mehr mit den Rotormagnetfragen langweilen müssen, von denen Sie wissen, dass Sie sie vergleichend messen können, indem Sie den Motor belasten und die Glockentemperatur betrachten. @ Micha Irgendeine Art von thermischer Analyse ist typischerweise, wie Gurus PM-Verluste bestimmen. Sie haben auch die Helmholtz-Spule und einen Signalgenerator, aber ich schätze, die Gurus wissen nichts darüber. RCN ist langweilig ohne dich Christian. Sie haben ihnen das bereits letztes Jahr über die Rotormagnete gesagt, also sind sie meiner Meinung nach langsam. Vielleicht gefallen Ihnen auch einige meiner anderen Handwerkzeuge zur Endbearbeitung bearbeiteter Teile. Sie benötigen ein gutes Kantenbrecher-Kit. Sehen Sie die Fase an den Bohrungen? Sie können das in der Zeichnung detailliert darstellen und es wird gedruckt, aber Sie müssen den Händen etwas zu tun überlassen. Entgrate den Unsinn!













@Christian for RCN youll need the largest sizes you can find.

TTYS
Hubert

Last edited by Clugh; 02-11-2023 at 10:33 AM.
Old 02-11-2023, 06:30 AM
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Where is Powercroco
Old 02-11-2023, 09:27 AM
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Compliments of Clugh
AKA
1BOHO
Old 02-11-2023, 11:51 AM
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I am using the Artemis open logger for data Aquisition of the torque cradle sensors..If you use their QWIIC series of sensor interfaces they are plug and play

Last edited by Clugh; 02-11-2023 at 11:53 AM.
Old 02-11-2023, 11:55 AM
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The Load cell amplifier I chose for the 25 kg. load cell is QWIIC as such.
Old 02-26-2023, 04:10 AM
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That said I messed up and forgot to buy the QWIIC I2C cables for the data Acquistion. I should still be able to solder the load cell to the amplifier. It has spring loaded terminals but since this load cell has a shield I will use the allotted solder points on the board that actually accommodate the shield be connected. I should still be able to get a reading with just the amplifier and the stand alone scale display I purchased . We will see.

See the thru hole solder allotment for the load cells shield wire vs the 4 terminal spring loaded quick connector ?

A small I do'nt get it detail to have 5 spring loaded terminals....

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Last edited by Clugh; 02-26-2023 at 06:55 AM.
Old 02-26-2023, 04:20 AM
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I'm torn on if I should embed the amplifier in the larger case or should i make its own separate enclosure as a stand alone load cell that could be plugged into other MCUs via I2C . I want it neat and compact and the connector must also carry power. So I'm thinking mini s pin din connectors into the larger electronics enclosure maybe. The QWIIC cables are not that long and are in a ribbon format. A rounded din cable with a protective sheath and shielding around the signal wires would be better for this in my opinion.


Regards
Hubert

Last edited by Clugh; 02-26-2023 at 04:24 AM.
Old 02-26-2023, 01:10 PM
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For the optical RPM trigger a sharp photo interrupter will be used. The break out board makes it eazy to integrate to the mcu.
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Old 02-26-2023, 01:23 PM
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Old 03-08-2023, 04:36 AM
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The photo interrupter break out board came but the actual optics from sharp have not arrived yet. However there are some other pieces i need like current clamps for the scopes etc. I will also build a Helmholtz coil to test motor material losses thermally. Hopefully today I can get bezel printed for hall sensors on the outrunners and see how i runs with castles cryo drive technology.
Old 03-08-2023, 05:22 AM
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Lets look at some modern winds proven to be better than Powercrocois 12N10P


24N20P Courtesy of the IEEE Dieter Gerling and Guraquk Dajaku

Last edited by Clugh; 03-08-2023 at 05:36 AM.
Old 03-08-2023, 05:26 AM
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Courtesy of Dr Sariful Islam ABB and the NC DEECS dept.

Last edited by Clugh; 03-08-2023 at 05:37 AM.
Old 03-08-2023, 05:32 AM
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Diter Gerling and Gurakuq Dajaku 18N10P hybrid

Last edited by Clugh; 03-08-2023 at 05:39 AM.

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