Hinterlasse einen Kommentar:
Liebe Spam-Fuzzis und Trolle: Kommentare werden erst nach einer persönlichen Überprüfung veröffentlicht!
Wegen dieser manuellen Überprüfung dauert es daher etwas, bis euer Text zu lesen sein wird - habt Geduld...

Kommentare beantworte ich grundsätzlich nicht per Mail!
Die Spielregeln und meine Mailadresse findet ihr in der Rubrik Kontakt!

Norbert

Name:
Kommentar:
Formular:


----------------------------------------------------

Seite: technics-machines-cnc-v3-2_ge.htm
Datum: 2020.03.30 13:33:11 (UTC+1)
Name: ali

Kommentar:
hi i install ubuntu18.i work little wiht ubuntu.but i cont installation directory.con y cent me a video than how working and compailling ?for example gear weel.nc   my email . xxxx@xxxx.xxx . please

Me: As witten in the commen section I never ever answer comments by mail.
About your request:
Why should I make a video about what is written in the readme.txt? Read those instructions, follow them step by step and if you get an error message, you must tell me what error message came on the commend line. That's the only way I can help you.
An *.cn file isn't compilled. You can create them e.g. with easel (http://easel.inventables.com).

----------------------------------------------------

Seite: technics-electrical-engineering-magnetic-hysteresis-loop_ge.htm
Datum: 2020.03.28 20:48:00 (UTC+1)
Name: Nicolas

Kommentar:
Eine didaktisch sehr feine Erklärung der Hysteresekurve: klar-verständlich und schön der Reihe nach.
So macht Lernen Spass!

Erkenntnisgewinn für alle vor Eigennutz des Einzelnen. Ein anmutiges Projekt.

Danke!

Me: Freut mich, geholfen haben zu können.

----------------------------------------------------

Seite: index_ge.htm
Datum: 2020.03.28 13:45:17 (UTC+1)
Name: Burak

Kommentar:
Hallo,
welches 3D-Programm wird verwendet?
Kann mann SolidWorks verwenden?

Beste Grüße,
Burak

Me: Für 3D-Animationen in meinen Videos programmiere ich die Sequenzen in OpenGL.
3D-Konstruktionen erstelle ich mit OpenSCAD.
Programme, die nicht unter Linux laufen, sind mir wuppe ;-)

----------------------------------------------------

Seite: technics-physical-computing-N-channel-MOSFETs_ge.htm
Datum: 2020.03.28 10:50:27 (UTC+1)
Name: Rico

Kommentar:
Top Infoseite. Danke, dass du dir die Zeit nimmst und alles so detailiert hier niederschreibst.

Me: Für Leute, die das zu schätzen wissen, ist die Zeit gut investiert.

----------------------------------------------------

Page: technics-machines-cnc-v3-1_en.htm
Date: 2020.03.27 02:43:15 (UTC+1)
Name: GusGus

Comment:
Hello, very neat project. Have you considered using an interferometer arrangement to measure displacement along the linear axis? Regards,

Me: Thanks! I have been thinking in that direction, but did not find the time to do some experimentation, yet.


----------------------------------------------------

Page: technics-electrochemistry-galvanic-cell_en.htm
Date: 2020.03.26 11:27:32 (UTC+1)
Name: Eli Lakey

Comment:
Explained in a way which is easy to understand and follow! Great for learning and developing an interest in chemistry.

Me: Thanks! Ignite interest in STEM is what I have in mind.

----------------------------------------------------

Page: technics-machines-cnc-v3-2_en.htm
Date: 2020.03.25 16:32:16 (UTC+1)
Name: Ali

Comment:
I compiled arduino.ino in my arduino bord.how l do control cnc with grbl controller software in pc.

Me: Simply follow ALL steps of the instruction written in the readme.txt that is included in the download package.

----------------------------------------------------

Page: technics-machines-cnc-v3-2_en.htm
Date: 2020.03.25 08:14:21 (UTC+1)
Name: Ali

Comment:
Hi mersi.can help me with one example progect step by step.please.

Me: Sorry, but this is a too common question. You must say EXACTLY what your problem is and what step you are missing.

----------------------------------------------------

Seite: technics-machines-3D-printer-Granule-Extruder_ge.htm
Datum: 2020.03.24 10:32:25 (UTC+1)
Name: Felix Winter

Kommentar:
Selbstverständlich! :)
Ich hatte etwas in der Art im Sinn, um zu sehen was wo steckt
(nur dass 2D natürlich reicht):
http://puu.sh/FohLb/ee5bcd87a4.jpg

Kann sein, dass die Maßstäbe stark abweichen, aber per
Augenmaß ist immer etwas dünn :D


Wenn du mal für ein Projekt eine Zeichnung haben möchtest,
kann ich gerne auch eine machen :)

Me: Schöne Zeichnung, aber wo ist da jetzt der Zusammenhang zur Frage wo welches Teil hinkommt?

----------------------------------------------------

Page: technics-machines-cnc-v3-2_en.htm
Date: 2020.03.24 07:59:36 (UTC+1)
Name: ali

Comment:
help me comlpilling commands-cnc in window 7

Me: That won't work, since my software doesn't run under the Spyware named "Windows". Install Linux - its Open Source, freely abvailable and runs on your PC! I am using Ubuntu 16.04LTS, available at Ubuntu.com. Don't forget to make a backup of your data before installing a new operating system!

----------------------------------------------------

Seite: technics-machines-3D-printer-Granule-Extruder_ge.htm
Datum: 2020.03.24 01:20:24 (UTC+1)
Name: Felix Winter

Kommentar:
Hi, ich wollte höflich fragen, ob du den herunterladbaren Dateien und/oder der Seite eine Schnittzeichnung der letzten Iteration des Granulatextruders beifügen kannst. Ich habe Schwierigkeiten nachzuvollziehen, wie die Teile angeordnet sind. Auf jeden Fall ein tolles Projekt - die Druckergebnisse können sich sehen lassen!

mfG.: Felix

Me: Mir wäre es lieber, du würdest mir genau sagem, bei welchem Teil bzw. welchen Teilen du Probleme hast, die zuzuordnen. Ich bestehe auf präzieseren Fragen, bevor ich einen Nachmittag investiere, um hinterher doch nicht richtige Zeichnung anzufertigen ;-) Sind doch wirklich nicht viele Teile, oder?
Der Extruder ist aber in einem hochgradig experimentellen Stadium. Es kommt häufig zu Verstopfungen im System.

----------------------------------------------------

Page: technics-machines-plotter-cdrom_en.htm
Date: 2020.03.23 08:49:52 (UTC+1)
Name: Hamza

Comment:
Sir .please make a tutorial about arduino controlled laser engraver ......we would be very grateful to u.

Me: I have made CNC routers using an Arduino and to turn this into a CNC laser you only have to replace the spindle by a laser head...
I will talk more about Physical Computing to give you base knowledge about how things work in general, but these chapters are not written on an afternoon, so be patient.

----------------------------------------------------

Page: download_en.htm
Date: 2020.03.23 03:58:16 (UTC+1)
Name: Milton Rodriguez

Comment:
Hello, I am trying to create a servo motor with a wiper motor like you did.
But I need to change the code to receive the PWM signal from another microcontroller, instead of using the potentiometer, I need to receive the PWM signal to send the wiper servo motor to the position I want at an angle like a normal R.C servo motor.
The pulse width is typically 1 to 2 milliseconds long for 90 ° motion, but most servos can do more. The midpoint is usually at 1.5 ms.
the other microcontroller sends me PWM

Me: The tricky thing is to detect the pulses with precise timing. There is a great writeup including code examples at the Arduino page:
https://create.arduino.cc/projecthub/kelvineyeone/read-pwm-decode-rc-receiver-input-and-apply-fail-safe-6b90eb

----------------------------------------------------

Page: technics-machines-v-plotter_en.htm
Date: 2020.03.20 16:02:25 (UTC+1)
Name: Adrian

Comment:
Hello,
Maybe you already answered but I didnt find it.
How do you home the pen?
Is there a way to connect 2 Endstops?

Me: I am driving the pen to the home position manually with the cursor keys.
Of course you can, if you can do the coding work nad have an idea of how to do the mechanical part. I haven't done that.

----------------------------------------------------

Page: games-calculator-01_en.htm
Date: 2020.03.19 02:56:01 (UTC+1)
Name: elettromirco(Mirco)

Comment:
Game 'Calculation game' solved in 180.332s. Difficulty: Heavy, Operation: Add

Hi! And thanks you for lessons

Me: Students are always welcome!

----------------------------------------------------

Seite: technics-machines-3D-printer-Longer-Orange-10_ge.htm
Datum: 2020.03.16 19:51:02 (UTC+1)
Name: Dietmar Just

Kommentar:
Guten Abend,
nachdem ich Amazon mit Geld dazu zwingen konnte mir einen Elegoo Mars zu schicken, habe ich ein Problem rechteckiges Kästchen zu drucken.Die Ecken sind nicht eckig!!(sieht aus wie warping bei einem schlecht eingestellten FDM Drucker aus)
Ich verwende Harz in schwarz von Elegoo.
Außerdem ist das Harz extrem spröde. Ausgeghärtet bricht es sofort.
Gibt es da noch was anderes??
PS:
Kleine Monsterfiguren druckt das Ding problemlos aus...
Liebe Grüße aus Hiddenhausen...

Me: So ohne Bild kann ich mir nur schlecht ein eigenes Bild von dem Druckproblem machen ;-)
Spröde sind die Standard-Harze alle, das kann ich bestätigen und habe ich in meinem Video auch angesprochen. Auch die Aushärtzeit im UV-Licht hat darauf einen Einfluss. Werden die Drucke über längere Zeit direktem Sonnenlicht ausgesetzt, so werden diese auf jeden Fall recht spröde. Es gibt verschiedene Harze mit entsprechend unterschiedlicher Festigkeit bis hin zu gummiartigen Produkten (die dann auch gummiartig bleiben). Ich selbst habe damit allerdings noch nicht experimentiert. Für meine Projekte sind PLA und PET aus Filamentdruckern wegen der mechanischen Eigenschaften durchweg die bessere Wahl.
Grüße zurück vom Rand des Westerwaldes.

----------------------------------------------------

Page: technics-base-circuits-transmissive-optical-sensors_en.htm
Date: 2020.03.10 18:17:25 (UTC+1)
Name: David Gray

Comment:
Great! That looks EXACTLY like the one from a printer that I was trying to decipher. Thank you.

Me: You're welcome!

----------------------------------------------------

Page: technics-base-circuits-function-generator_en.htm
Date: 2020.03.07 19:37:10 (UTC+1)
Name: Astro

Comment:
Can I use 0.1uF and 0.01uF in place of 1uF and 0.33uF?, Can I get decent results using this??

Me: At what circuit? The figures are numbered for good reasons. As explained on the page, you will change the frequency when changing the values of the capacitors and resistors. If it works depends on the properties of the op-amp you are using, so have a look at the datasheet.

----------------------------------------------------

Page: download_en.htm
Date: 2020.03.06 05:10:04 (UTC+1)
Name: Krishna

Comment:
Hello sir
I'm btech 1st year student, I want to make a writing machine with NEMA stepper motors. Can you help me in code that I cannot choose which code I have to use for this project and can we use h bridges for this project.

Me: What motor driver you can use depends on what kind of NEMA motor you are using. If it is a 12V type and your supply voltage is 12V you might be able to work with H bridges. However, bipolar stepper motors are usually driven by constant current, not by constant voltage. Using drivers as the A4988 chips is the more common solution. Coding definitely is your job, since I am not the man that does your homework for free ;-)

----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.03.03 18:35:26 (UTC+1)
Name: big mike

Comment:
Game 'Number systems' solved in 107.174s. Difficulty: Heavy, Operation: Binary

I'm back

and yes this is epic

Me: Good to see you are back.

----------------------------------------------------

Page: technics-machines-plotter-cdrom_en.htm
Date: 2020.03.02 19:04:38 (UTC+1)
Name: Tanvir Hassan

Comment:
1st of all, Thanks a lot sir. The Cd-rom plotter is working like a charm 🤩

i'm curious about a things-
Can i use this program and same wiring in a big plotter that made with nema stepper motor?

many many thanks again sir😊

Me: Not without modificaions in the source code and your wiring. NEMA steppers are driven by constant current boards with step/direction inputs, not with doubble H bridges and constant voltage.
Good to hear that your plotter works fine.

----------------------------------------------------

Page: technics-machines-plotter-cdrom_en.htm
Date: 2020.02.29 05:52:03 (UTC+1)
Name: Tanvir Hassan

Comment:
Sir i'm using a Raspberry pi 4
using ur python script i changed gpio pins number as by boards output but its not working
Pleas help me😓

Me: Use the pin header numbers (P1-5, P1-7 and so on) listed in the schematics! Do not mess with the GPIO numbers, since they are identic for all Raspberry boards in wiringPi. For Raspberry 4 you must install wiringPi manually, as the latest version is still not part of the official packages:
http://wiringpi.com/wiringpi-updated-to-2-52-for-the-raspberry-pi-4b/

----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.02.28 17:37:44 (UTC+1)
Name: aafadf

Comment:
Game 'Number systems' solved in 53.824s. Difficulty: Easy, Operation: Hexadecimal

thia ia harder tham i thought

Me: ...but obviously solved!


----------------------------------------------------

Page: technics-electrical-engineering-magnets_en.htm
Date: 2020.02.28 11:45:59 (UTC+1)
Name: D P Bouchard

Comment:
Thank you for this much of an answer. Theoretically, the earth's liquid and moving iron core generates the field lines. If a much smaller body of iron existed within that field that weakens it, would you expect the smaller body to be magnetically parallel, antiparallel, or perhaps with no overall magnetic poles?

Me: You can shift the center of a magnetic field by weakening it at on the one end or enforcing it at the opposite end. Consider the Curie temperature: If your postulated body is too deep, it is no longer a static magnet at all.
Earth is no perfect sphere and besides the gemoetrical deviations there are gravitational abnormalities caused by non uniform spread of material.

----------------------------------------------------

Page: technics-electrical-engineering-magnets_en.htm
Date: 2020.02.28 05:00:43 (UTC+1)
Name: D P Bouchard

Comment:
Here is a theoretical problem: Suppose a large metallic (iron and nickel) meteor struck the earth,, plunged through the crust, and lodged in the earth's mantle. Eventually, it would melt and sink to the earth's core. However, what would happen to the earth's magnetic field in that region? Could such an event account for the South Atlantic Anomaly?

Me: Don't expect me to give an answer to a problem that keeps many scientists busy for as long as those anomaly has been detected. It's the non concentricity of the earth's magnetic field that causes the weakening of the magnetic field in that area. However, what causes the non concentric shape of the earth's magnetic field is not konwn for sure.


----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.02.27 17:26:45 (UTC+1)
Name: damor;;r

Comment:
Game 'Number systems' solved in 23.782s. Difficulty: Easy, Operation: Binary

yay

Me: Jawohl!



----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.02.27 03:26:43 (UTC+1)
Name: big mike

Comment:
Game 'Number systems' solved in 40.466s. Difficulty: Easy, Operation: Hexadecimal

this is epic

Me: Is it?





----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.02.26 18:56:29 (UTC+1)
Name: Jonathan

Comment:
Game 'Number systems' solved in 11.584s. Difficulty: Easy, Operation: Binary

there... i beat u

Me: It's just the time ticking you can beat ;-)




----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.02.26 18:53:45 (UTC+1)
Name: Jonathan Xu

Comment:
Game 'Number systems' solved in 57.983s. Difficulty: Heavy, Operation: Hexadecimal

YAS

Me: I agree!




----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.02.26 18:46:49 (UTC+1)
Name: Jonathan Xu

Comment:
Game 'Number systems' solved in 90.377s. Difficulty: Heavy, Operation: Hexadecimal

I think i can do better

Me: You can always do better, but it's good for the "Heavy" version of this game




----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.02.26 18:41:03 (UTC+1)
Name: kristina

Comment:
Game 'Number systems' solved in 86.987s. Difficulty: Easy, Operation: Binary

86 sec

Me: Indeed!




----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.02.26 18:35:10 (UTC+1)
Name: emma

Comment:
Game 'Number systems' solved in 25.609s. Difficulty: Easy, Operation: Hexadecimal

I would not recommend this game thanks

Me: Why?




----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.02.26 18:30:58 (UTC+1)
Name: emma

Comment:
Game 'Number systems' solved in 31.816s. Difficulty: Easy, Operation: Hexadecimal

thx

Me: You're welcome!




----------------------------------------------------

Seite: technics-machines-v-plotter_ge.htm
Datum: 2020.02.26 17:20:00 (UTC+1)
Name: Simon

Kommentar:
Nichts spricht gegen deine softeware. Wäre nur cool sie selbst zu entwerfen:).Sind im Quellcode die Nummern der Schrittmotoren als GPIO Nummern oder als Pin Nummern angegeben?

LG Simon

Me: Als wiringPi GPIO Nummern. Auch das steht im Quellcode. Programmieren lernt man nicht an einem Nachmittag, aber es ist gut investierte Zeit.

----------------------------------------------------

Seite: technics-machines-v-plotter_ge.htm
Datum: 2020.02.26 16:12:51 (UTC+1)
Name: Simon

Kommentar:
Hallo ,als erstes mal eine mega coole Projekt Idee. Ich würde gerne das Programm dazu selber schreiben (natürlich habe ich deins schon benutzt:))nur weis ich nicht ganz wie ich anfangen soll bzw wie man die Position des Stiftes errechne und daraus ein lauffähiges Prgramm mache.Hab schon unten in dem Teil Mathematik nachgeschaut aber trotzdem weis ich immernoch nicht weiter.

LG Simon

Me: Was spricht denn dagegen meine Software weiterhin zu nutzen? Das Erechnen der Koordinaten ist ja auch im Quellcode nachzulesen. Das sollte weiterhelfen.

----------------------------------------------------

Page: games-calculator-01_en.htm
Date: 2020.02.24 15:35:15 (UTC+1)
Name: jose diaz

Comment:
Game 'Calculation game' solved in 63.8s. Difficulty: Middle, Operation: Add

Viva alemania...0

Me: Jawohl!




----------------------------------------------------

Seite: technics-electrochemistry-corrosion-prevention_ge.htm
Datum: 2020.02.20 23:12:41 (UTC+1)
Name: gerald

Kommentar:
da gibts doch die von anfang an rostigen gebäudefassaden, die nicht weiterrosten. nach normalem rosten sieht das nicht aus, denn es ist ganz gleichmäßig - und es scheint eine oxyd-schicht zu sein. irgendwo habe ich mal gelesen, das sei dann feinkornstahl. aber ich finde nix näheres dazu. kannst du weiterhelfen?

Me: Dmit habe ich mich noch nicht ausführlich beschäftigt, auf die Schnelle habe ich aber eine Quelle gefunden, die von "amorphem Stahl" spricht (eventuell hilft das weiter):
https://www.ingenieur.de/technik/fachbereiche/werkstoffe/stahl-regelmaessigen-kristallgittern-rostet-schneller/





----------------------------------------------------

Page: technics-base-circuits-computer-mouse_en.htm
Date: 2020.02.20 09:27:50 (UTC+1)
Name: Erfan

Comment:
hey sir, I wanted to know if you can send me the board pic and the code. I really want this things cause I'm stuck at this moment!
I'd really appreciate it.
King Regards
Erfan

Me: There are download links on the page pointing to what you are looking for. Read it all before posting a comment, next time.

----------------------------------------------------

Page: technics-base-circuits-encoder-disc_en.htm
Date: 2020.02.10 13:48:01 (UTC+1)
Name: Kari bench

Comment:
Encoder-Disc
good days
I'm fanns by you great project.
I have a question I hope you can help me.
I have Canon pusher and wolte encoder read out and stepper motor control the same function as DTG PRINTER. is the example suitable or still needs to be edited. thank you in advance


Me: The only person that can say if my sample fits for you purpose is: you. Because the devil is in the details (which you did not tell me)...

----------------------------------------------------

Page: technics-base-circuits-computer-mouse_en.htm
Date: 2020.02.10 11:09:39 (UTC+1)
Name: Nitin Kumar

Comment:
You may be the next genius of the world. I just wanted to know that "do you know this world is being run by some greatest business minds of all time and we were supposed to consume or use all nature's resources for free?

But they wanted to provide these free resources of nature, may it be water, electricity and even knowledge, at some cost so that they can somehow rule the world.
If I get any, I mean any chance, I would be doing the same thing as you do to make this world a better place.
Thanks

Me: You have all chances to do as I do: Simply share your knowledge for free as well!

----------------------------------------------------

Page: contact_en.htm
Date: 2020.02.10 01:04:07 (UTC+1)
Name: Ariel

Comment:
Great job! congrat and thanks

Me: You're welcome!

----------------------------------------------------

Page: games-calculator-01_en.htm
Date: 2020.02.09 22:16:37 (UTC+1)
Name: Michael

Comment:
Game 'Calculation game' solved in 20.109s. Difficulty: Middle, Operation: Multiply

20 secs for multiplying at middle. I think its good

Me: I think so, too.

----------------------------------------------------

Page: games-calculator-01_en.htm
Date: 2020.02.09 22:10:49 (UTC+1)
Name: Michael

Comment:
Game 'Calculation game' solved in 32.527s. Difficulty: Middle, Operation: Add

32secs. Is it good ?

Me: You solved all calculations, of course it's good.




----------------------------------------------------

Seite: technics-machines-3D-printer-CR-10S_ge.htm
Datum: 2020.02.07 16:50:37 (UTC+1)
Name: Schaussi

Kommentar:
Hallo,

würdest du evtl. die Datei deiner optimierten Luftdüse zur Verfügung stellen?

Vielen Dank, lg

Me: Kann ich, bitte sehr:
CR-10S-fan-duct.zip.

----------------------------------------------------

Page: technics-base-circuits-computer-mouse_en.htm
Date: 2020.02.06 16:21:54 (UTC+1)
Name: Sultan

Comment:
Thanks for this beneficial video, may you please help us with the code and wires connections that detect the movement along X and Y axis (figure 6)?

My regards.

Me: Sample codes are part of the Download package.

----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.02.04 17:44:17 (UTC+1)
Name: Robert

Comment:
Game 'Number systems' solved in 18.291s. Difficulty: Easy, Operation: Binary

beat my time of 12 seconds

Me: It was 18 seconds ;-)


----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.02.01 13:41:57 (UTC+1)
Name: asy

Comment:
Game 'Number systems' solved in 14.121s. Difficulty: Easy, Operation: Binary

Wowww... i did 14 second.

Me: plus 0.121s.

----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.02.01 13:39:48 (UTC+1)
Name: asy

Comment:
Game 'Number systems' solved in 14.903s. Difficulty: Easy, Operation: Binary

Yes.. I manage to score under 15 second.

Me: Yes!




----------------------------------------------------

Page: games-numbersystem-01_en.htm
Date: 2020.02.01 13:37:21 (UTC+1)
Name: asy

Comment:
Game 'Number systems' solved in 16.37s. Difficulty: Easy, Operation: Binary

Yes.. almost to under 15 second.

Me: Very close.




----------------------------------------------------