Pierre's 170W in 1600W out Looped Very impressive Build continued & moderated

[iflewmyown]

Thanks for the update. Fantastic. Looks like a life form.
Garry

[NerzhDishual]

all,
Je me demande si les moteurs universels comme sur l'image ci dessous ne pourraient pas convenir pour ce type d'expérimentation..[.......].
juste une idée

A clever lazy man very good  idea, IMHO.
Français (Coluchien): Voila une idée qu'elle est très bonne, selon moi!

Sinon:

[gotoluc]

Thanks for the update. Fantastic. Looks like a life form.
Garry

Thanks Garry

I also received this personal message from Pierre:

very nice job, except for the location of the arduino,  there's a good chance it will be affected by the magnetic field being so close. Would be better not to put the electronics so close to the magnetic field.

Fr. J'ai aussi reçu ce message personnel de Pierre:

Fr. très beau travail sauf l'emplacement de l'arduino il y a de grosse chance qu'il  bug a cause des champs magnétique qui sont coller dessus il serait préférable de ne pas mettre l'électronique aussi près du champ magnétique

[pmgr]

If anyone thinks this is an easy build you better think again. Winding a stator is only 25% of the job. See below video of my finished product. Testing will begin tomorrow after winding the center core.

Fr. Si quelqu'un pense que c'est une construction facile, il vaut mieux réfléchir à nouveau. L'enroulement d'un stator ne représente que 25% du travail. Voir ci-dessous la vidéo de mon produit fini. Les tests commenceront demain après avoir enroulé le noyau central.

Video: https://youtu.be/m16qvt9-2Kk

Amazingly nice build Luc!

What you can do as a first experiment is mount a small magnet on an axis that can rotate and place it in the middle of the stator (take the rotor out) and upload the Arduino sketch with a 1Hz frequency (x=50 in your Arduino sketch). It will then take 3secs for the magnet to spin around once (or you can decrease the x value to something else if that is too slow).

Start with a voltage as low as possible so you don't overheat any H bridges. The on-time for each bridge is in that case 3*x, so 3*50ms=150ms, off time is 17*50ms=850ms, so 15% duty cycle.

With about 0.5ohms per coil and five coils in series, that is about 2.5ohms. And then each bridge drives 2 coil sets in series, so 1.25 ohm load. So your voltage should be around 5 volts (4amps per red/black output) plus whatever is lost over two transistors inside a bridge, which is probably another 2-3 volts or so. So don't take the voltage above 7-8 volts for now.

Just see if you can get the magnet to spin around at the desired speed of the Arduino sketch.

PmgR

[r2fpl]

gotoluc:

Wonderful hard work, I know something about it

I wanted to write the same as Pierre that Arduino should be further away from the magnetic field as well as the control wires. Of course, it can work.