Search found 7 matches

by emetor
Jan 10 2014 2:04am
Forum: Motor Technology
Topic: Miles' 90mm inrunner build thread
Replies: 561
Views: 41024

Re: Miles' 90mm inrunner build thread

Chart looks reasonably /correct for thinner wire up to around 1mm or so. Looks to be going off the tracks a bit with the fatter wire sizes. Not seeing that above 80 is even possible with my math/assumptions. What are the two types of insulation and its average thickness. The chart assumes that the ...
by emetor
Jan 09 2014 7:53am
Forum: Motor Technology
Topic: PM Motor theory - formulae etc.
Replies: 71
Views: 28813

Re: PM Motor theory - formulae etc.

I've looked at Emetor and it seems quite appreciated. They advertised some companies working with this soft, I know some use other things also, but for 9€/sim it's a dam cheap way to do a non-linear FEA sim. The entry cost for FEA software is 5-figure minimum per user per rig, if we don't count FEM...
by emetor
Jan 09 2014 7:28am
Forum: Motor Technology
Topic: Miles' 90mm inrunner build thread
Replies: 561
Views: 41024

Re: Miles' 90mm inrunner build thread

I did a short investigation about the maximum possible slot fill factor using round conductors a time ago. It can be found here:
https://www.emetor.com/blog/post/how-bi ... onductors/
by emetor
Dec 19 2013 7:01am
Forum: Motor Technology
Topic: Farfle's Mk.5 Super badass outrunner
Replies: 135
Views: 14425

Re: Farfle's Mk.5 Super badass outrunner

Miles wrote:For 24t 22p design, the simulation still fails.
I have slightly modified the Emetor solver, so there is a chance that your 24t 22p design might run now.

BTW: 24t 22p is a rather promising pole-slot combination with a higher winding factor than the 24t 20p design.
by emetor
Sep 26 2013 8:58am
Forum: Motor Technology
Topic: someone feel like programming a nice winding calculator ?
Replies: 4
Views: 579

Re: someone feel like programming a nice winding calculator

Another option is Koil.

Not online, but free and open-source.
by emetor
Sep 18 2013 2:25pm
Forum: Motor Technology
Topic: Miles' 90mm inrunner build thread
Replies: 561
Views: 41024

Re: Miles' 90mm inrunner build thread

Miles wrote:
bearing wrote:When running with sine AC, it also calculated the inductance.
Timely: https://www.emetor.com/blog/post/induct ... tion-blac/
Inductances should soon be calculated for BLDC simulations as well in Emetor. Star connection looks fine, but delta connection gives me some headaches :?
by emetor
Sep 16 2013 4:18am
Forum: Motor Technology
Topic: Using femm
Replies: 56
Views: 5387

Re: Using femm

That's how the stacking factor is considered in Emetor: https://www.emetor.com/blog/post/modeli ... nt-method/

Not sure how the stacking factor is handled in FEMM though.