Farfle
100 kW
nicobie said:Think you'll have it done by the Sept. race?
Luke, and the others, might have a problem.
That's the plan, the dual pie is pretty much cooked, may it rest in peace. I may turn the stator into a trophy for this race.
Farfle joins the MENS club
- Thread starter Farfle
- Start date
That's the plan, the dual pie is pretty much cooked, may it rest in peace. I may turn the stator into a trophy for this race.
nechaus
100 kW
Having a Cooked Motor Engraved and used as a trophy is a friken awesome idea!!!!!
it needs some kind of feet or stand so it can stand upright haha
it needs some kind of feet or stand so it can stand upright haha
cal3thousand
10 MW
excuse my ignorance, (I did search) but what is the MENS club? (Google searches only bring up Gentlemen's Clubs 
)
)
Farfle
100 kW
Here's some motor CAD pr0n:
Farfle
100 kW
cal3thousand said:excuse my ignorance, (I did search) but what is the MENS club? (Google searches only bring up Gentlemen's Clubs
Hmm, I cant find the thread. I shot a PM to AJ.
MattyCiii
100 kW
Farfle said:cal3thousand said:excuse my ignorance, (I did search) but what is the MENS club? (Google searches only bring up Gentlemen's Clubs
Hmm, I cant find the thread. I shot a PM to AJ.
I looked it up myself today: http://endless-sphere.com/forums/viewtopic.php?f=26&t=16957
cal3thousand
10 MW
MattyCiii said:Farfle said:cal3thousand said:excuse my ignorance, (I did search) but what is the MENS club? (Google searches only bring up Gentlemen's Clubs
Hmm, I cant find the thread. I shot a PM to AJ.
I looked it up myself today: http://endless-sphere.com/forums/viewtopic.php?f=26&t=16957
Haha... thanks for the link. Looks like I need to figure out a mid mount for my next project.
John in CR
100 TW
Farfle said:
Great trophy idea. I don't mean to make light of it, but what happened? Did you try the oil and the motor objected to it being the best thing since sliced bread? :lol:
John
Farfle
100 kW
Nothing that extreme, since I put the big tires on, it's overheatind issue got made worse, then I tried to race a turboed WRX from a stoplight, I beat him the first time,I beat him the second time too, but the motor was already really hot. And then sitting at a stoplight for a while let the heat soak, and it demagnetized the magnets, plus that stator iron has been stuffed since the moment I made it, 1kw of no load heat. Im pretty much done with it, A trophy would be a fitting resting place for it.
Farfle,
If you could post up the drawing of the core, we could use it as the example for the FEMM tutorial. It would be more interesting to use a real example. We only need an accurate drawing or the dimensions of a single tooth profile, airgap, magnets and rotor yoke. What do you think? I've got most of the information already, from your photos.
If you could post up the drawing of the core, we could use it as the example for the FEMM tutorial. It would be more interesting to use a real example. We only need an accurate drawing or the dimensions of a single tooth profile, airgap, magnets and rotor yoke. What do you think? I've got most of the information already, from your photos.
John in CR
100 TW
Farfle said:
At least you won. That's the important part.
John
Farfle
100 kW
Miles said:
Absolutely, ill get magnet and airgap dimensions for you. My trial of sketchup pro ran out, so I cant export dxfs anymore. Ill see if the robotics team has a spare copy of autocad.
Farfle
100 kW
Ok, few more pics. You were really close with those dims. I had to get out the feeler guages to measure the flux gap, Its REALLY small, its about .3mm and the upper raidus is 3.5mm
Lower radius:
Lower radius:
Great. Thanks.
Magnets 3.2mm thick?
Also, your 6.66mm for the stator yoke is up to the retaining lip. I estimated 10mm overall. Does that seem ok?
The central structure is a steel pressing? A check for the inside diameter of the core could be to take the inside diameter of the pressing and add 2x the thickness of the material that it's fabricated from?
Magnets 3.2mm thick?
Also, your 6.66mm for the stator yoke is up to the retaining lip. I estimated 10mm overall. Does that seem ok?
The central structure is a steel pressing? A check for the inside diameter of the core could be to take the inside diameter of the pressing and add 2x the thickness of the material that it's fabricated from?
Farfle
100 kW
It is 6.66mm, the retaining lip has been lathed off, asks yes, mags are 3.3mms thick.
Farfle
100 kW
The inside pressing is for all intents and purposes a solid piece of aluminum.
Farfle
100 kW
Miles said:
Im looking at the picture, and im not sure what to think, is that good?
Farfle
100 kW
I can measure again, but its somewhat difficult, as the iron doesn't hold still with one sidecover off, and I don't have a set of calipers big enough to measure the OD of the stator and the ID of the magnets.
Farfle
100 kW
I remeasured it with 3 different feeler guages pressed around the edges, the flux gap is between .5mm and .6mm. I also did some winding calcs, and its good news. The original was 31 turns of 2 paralelled 18 awg and spun 420 rpm at 44v. So, if the stator is twice as wid e, but im running twice the voltage they should cancel out. So, ill rewind it with 5 turns of 12 paralelled strands of 18 awg.. Should get it spinning around 3k rpm at 100v and with a phase wire bundle thats the equivalant of almost 6 awg