Added: 1 year ago
From: prem9740
Views: 7,396
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  • WATCH THIS SPACE - soon to come is another video with a more complex 6-pole (6-coil) DC motor, complete with video footage all processes of construction. I'm about halfway through building/videoing the motor at the moment.

  • How much did this cost you?

  • @alecpolo93 Pretty much all I needed to purchase were the neodymium magnets. That came to $40, but you could do it with half the magnets I used, so about $20. The rest of the stuff I had lying around the place at home - bearings, wire, PAL aerial plug, etc. My guess is that if you were buying the stuff yourself, it would come to around $40 or $50.

  • what are the factors limiting the efficiency of the motor? friction between commutator and shaft only?

  • @pcangeldust No. To build a motor of this kind with maximum efficiency, you would need to take into consideration the gauge of wire used (and therefore the resistivity of the wire), number of turns in each coil, shape and orientation of permanent fixed magnets, quality of bearings for armature, material used for brushes. If you wanted to get really serious, you could surround the whole motor with a steel case - this helps direct the magnetic field in the correct direction from memory.

  • @onedaysnotice44 hi there, I sent an email to the address you gave me in your PM. Did you see it? If not, let me know.

  • hi did you see my pm? can you please send me the report? thanks :D

  • best homemade simple motor iv seen.WARNING dump question alert:whats a commutator

  • hey have u divided the commutator into two parts cuz i cannot see them. but the video realy is awesome. One question dat, how did u divide the female pal tv part 12o degree each on d shaft?

  • @aniarya22 Hi there, thanks for comment. Commutator is divided into 3 parts - I used a very small cutting disk on a Dremmel tool to separate it into 3 parts of 120 degrees. Check out my other video on here specifically about the commutator.

  • @thebrumby sure just PM me with email

  • This is a great motor, made by a great youtuber; helped me with a lot of information.

    Check out my 6-coil motor: /watch?v=DeLtdPgSe2s

  • Check out new video on commutator construction

    

  • In this diagram, the top coil is in series, and the bottom two are in parallel. This connection changes as the armature rotates. (See the Stage 1, 2, 3, 4 diagrams). I'll post another video explaining this in a few days time when I get the chance. If you're interested, I can also send you the design report (20 pages PDF). This goes into real detail.

  • @prem9740 hey any chance  i could see the report? thanks

  • @thebrumby sure just PM me with email

  • @prem9740 please send me the PDF i need to o a physics project lol thanks a lot!

  • I used a very fine cutting disk (0.4mm) on a Dremmel tool, and cut the PAL aerial plug into 3 equal sections (120 degree sections), and then fixed them onto the main motor shaft. when fixed to the shaft, the PAL plug formed its original diameter, but this time it was divided in three equal 120 degree parts.

    Pause the video at 0:54. This gives a detailed diagram of the coils and how they are connected to the power supply and commutator.

  • Hi there,

    Thanks. It turned out alright!

    I used a PAL aerial plug (as pictured briefly in the video) for the commutator. It's a 3 coil simple motor, so the commutator needed to be divided into three split sections (all equal). Don't go with 4 rings, just 3. (You need to match the number of rings with the number of coils, as it's the rings which transfer the current).

  • Heya , great motor first of all!. I was just wondering how you built the commutator from the aerial port and if you had any advice on whether 3 or 4 rings for a brushed DC motor is most benificial. Also curious as to how u set up the circuit, from what I can see it went ; terminals , brushes , commutator, and then coils? Where all the coils linked in series ??

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