Speed Calculator

Sorry for the late response Brian

Drive train ratio is 14.48:1

Pinion is 11
main gear is 45

That what I found searching, so if its wrong, someone please say so, but I think its right

thanks!

[BrianG]

@Griffin: lol, yeah, I like scopes too, but I no longer have access to one. Poo.

I don't think this is gonna work for what I wanted to do. It would have been nice to be able to display a minimum vehicle speed where ESC would work effectively, but it seems like there will be too many assumptions, not to mention all the types of motors out there to test. People are just gonna have to use common sense.

Oh well.

@macrow: the only time the ballooning figure would be nice to enter is if you are just doing straight-line top speed. I always use 0" of ballooning because I want to know the max controllable speed.

BlackedOutRevo: OK, thanks. I'll add the diff ratio. I was also working on adding all the Mega motor data so there is just one update. There are a LOT of 22 series motors! I might just add the two Mike has in his store...

[GriffinRU]

Originally Posted by BrianG

@Griffin: lol, yeah, I like scopes too, but I no longer have access to one. Poo.

I don't think this is gonna work for what I wanted to do. It would have been nice to be able to display a minimum vehicle speed where ESC would work effectively, but it seems like there will be too many assumptions, not to mention all the types of motors out there to test. People are just gonna have to use common sense.

Oh well.

I will get back to you on this,

[BrianG]

- Added Medusa Motors

- Removed LMT motor (so few now)

- Added the number of poles and the max recommended power rating to the Data Tables page. If anyone knows the power ratings for Neu and Feigaos, let me know.

- Added dropdown box to select vehicle type. Used to make drag-adjusted speeds more accurate. However, the drag values are the same for all types right now because I don't have enough real-world samples to go on. At least the functionality is there...

[GriffinRU]

Originally Posted by BrianG

If anyone knows the power ratings for Neu and Feigaos, let me know.

You can get this info from motocalc.


Or from my program, just use cursors and limit to power loss on the motor based on heatsink, i.e. no heatsink, finned, Mike's clamp, Novak's or custom...

[Arct1k]

Any chance of adding the Novak HV motors - not for me but was trying to demo the app and they used them. thx

[BrianG]

I was thinking of it but I try to limit the selection to what Mike carries. It is for general purpose R/C, but I do have his logo on there. Just my way of supporting the monster without actually buying stuff.

If you supply the following data, I will do it:

- model name
- kv
- if kv is loaded/unloaded/unknown
- max rpm
- motor length
- motor diameter, weight in grams,
- flange diameter (the raised area where the shaft exits the can)
- shaft length
- shaft diameter
- motor resistance (if available)
- recommended max power (if available)
- number of poles
- roughly equate it to an existing Feigao motor with respect to power. I use a funky rating system for the motor selector.

[skellyo]

Dude, you broke the calculator! I get a whole bunch of ?'s instead of any calculated values now.

[BrianG]

That's a feature, not a bug!

I forgot to FTP an updated page. Now it works. Sorry guys...

[BrianG]

Update: Added the Slash ratios. Basically the same as Stampede/Rustler, so it was easy. Also did a little restructuring of the help system (which is transparent to the user), but if you get errors or unexpected messages, let me know. Basically what I did was remove that huge list of help messages from the library file, and put the messages in the specific pages where they were used. Originally, I thought I would be re-using more messages than I ended up doing. Oh well.

Artur: Yeah, I'm gonna have to dig that out again and take a look then. I was really looking for the manufacturers recommended max power. I know that Neu used to have them listed for the various series, but not since the restructure of the website.

Brian

Any chance of getting a couple of the popular medusa motors added to the calculator?...Like the MR-036-060-2000V2-5?

[rabosi]

Originally Posted by BrianG

........I was really looking for the manufacturers recommended max power. I know that Neu used to have them listed for the various series, but not since the restructure of the website.

Brian, don't know if this is the info you're looking for (or how accurate).
http://www.nesail.com/detail.php?productID=3859

[BrianG]

Twenty-four of the 36mm motors isn't enough? I suppose I should have have listed the model name as well...

ok, I added "Medusa" to the model numbers. Happy now?

Originally Posted by BrianG

Twenty-four of the 36mm motors isn't enough? I suppose I should have have listed the model name as well...

ok, I added "Medusa" to the model numbers. Happy now?

sure glad you added that winky..wouldnt want you to get any warnings---->


yes thanks for the adding medusa for us noobs----->

[BrianG]

Thanks rabosi! I added the continuous ratings for the Neu's based on the page you provided.

I also add Feigao power ratings, but that was kinda fudged. I took the data from Feigao's datasheet. I figured an arbitrary 35k rpm max speed and divided that by the kv (to get voltage), multiplied that by their "max amps" figure, and then rounded up to the nearest 100w. It's not perfect, but it should be fairly close. And the power figures work for all winds of a particular series (S, L, XL) so good enuff!

Bustitup: No, wouldn't want any warnings. But the mods here aren't post nazis, so I don't think I have to worry. Besides, if anyone got warnings, it would be lincpimp.