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MCALC17b Jan28 2017 Beta 2102
2x 3x 4x CIM & 775Pro spec files here
discussion thread here
please report any bugs
MCALC32ab.zip
download fileMCALC32.PDF
download fileMCALC32ae.zip
download fileMCALC_2013a.zip
download fileMCALC_2013b.zip
download fileMCALC_2014c.zip
download fileMCALC_2014d.zip
download fileMCALC17b.zip
download file2x 3x 4x CIM & 775Pro.zip
download fileCIM MINI 775Pro multiple motors.zip
download file01132011 09:56 PM
EtherSimple Motor Calculator
I created this small app for my own use, then realized that others might find it interesting/fun/handy.
Constructive criticism and error reports welcome.
Note: for those looking for something more comprehensive, check out JVN's calculator.
http://www.chiefdelphi.com/media/papers/2059
01162011 03:35 PM
EtherThe updated version will allow you to enter a desired motor power, and it will then calculate the rpm range, the torque range, and the current range over which the motor will deliver at least that much power.
Also, if there is some reason why you want to always operate the motor at or above a certain efficiency, you can enter the desired efficiency and it will calculate the rpm range, the torque range, the current range over which the motor will operate at an efficiency equal to or greater than the entered number.
01172011 07:29 PM
MrHance
The updated version will allow you to enter a desired motor power, and it will then calculate the rpm range, the torque range, and the current range over which the motor will deliver at least that much power.
Also, if there is some reason why you want to always operate the motor at or above a certain efficiency, you can enter the desired efficiency and it will calculate the rpm range, the torque range, the current range over which the motor will operate at an efficiency equal to or greater than the entered number. 
01072012 07:09 PM
Ether
I have updated the motor calculator for the 9015 (am0912) and PG71 (am0914) 2012 motors.
The app is now 32bit so it should now run in 64bit Windows (XP & 7).
I am reworking the floatingpoint error trapping and will update again when that is done.
Enjoy.
01072012 11:53 PM
Ether
Floatingpoint exception handling added.
MCALC32c.
Works in 32bit or 64bit Windows.
Scrollable window.
Includes 9015 (am0912), PG71 (am0914), and fc1220 motors.
01082012 06:38 PM
Ether
For anyone who has downloaded MCALC32, please be advised that the specs for the PG71 gearmotor are in dispute^{1}.
As soon as this is settled, I will update the calculator.
Sorry for any inconvenience.
^{1} http://www.chiefdelphi.com/forums/sh...ad.php?t=99488
01092012 03:07 PM
Ether
Motor Calculator build MCALC32g 1/9/2012 350p
Now supports the following motors:
CIM
FP0673
FP2719
FP9012
FP9015
RS395
RS540 (not legal for 2012 but included)
RS550
RS77512
RS77518
am0912
am0914
DensoL
DensoR
Denso AE2351000160
01102012 12:16 PM
Ether
Here's a copyandpaste ticker tape output from the motor calculator. If you disagree with any of the specs please let me know. Thanks:
Motor Calculator build MCALC32h 1/9/2012 643p CIM FR801 001, AM802 001A @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 5310 100.0 2.7 0.0 32.4 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 343.4 2.425 0 0.0 133.0 0.0 1596.0 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 171.7 1.212 2655 50.0 67.8 337.1 814.2 41.4 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 42.8 0.302 4648 87.5 18.9 147.1 227.3 64.7 FP 008010673 @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 20770 100.0 0.8 0.0 9.8 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 75.4 0.532 0 0.0 108.7 0.0 1304.4 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 37.7 0.266 10385 50.0 54.8 289.5 657.1 44.1 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 6.0 0.043 19110 92.0 9.4 85.2 113.3 75.2 FP 0009682719 @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 16100 100.0 2.0 0.0 24.0 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 57.5 0.406 0 0.0 63.0 0.0 756.0 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 28.8 0.203 8050 50.0 32.5 171.1 390.0 43.9 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 8.7 0.061 13665 84.9 11.2 87.9 134.7 65.2 FP 0009689012 @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 15600 100.0 1.0 0.0 12.0 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 59.5 0.420 0 0.0 63.5 0.0 762.0 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 29.8 0.210 7800 50.0 32.3 171.6 387.0 44.3 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 6.6 0.047 13861 88.9 8.0 68.0 95.6 71.1 FP 0009689015 @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 15600 100.0 1.3 0.0 15.0 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 63.7 0.450 0 0.0 70.0 0.0 840.0 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 31.9 0.225 7800 50.0 35.6 183.7 427.5 43.0 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 7.5 0.053 13761 88.2 9.4 76.4 112.3 68.1 M3RS39512 @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 15500 100.0 0.5 0.0 6.0 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 16.7 0.118 0 0.0 15.0 0.0 180.0 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 8.3 0.059 7750 50.0 7.8 47.8 93.0 51.3 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 2.6 0.018 13107 84.6 2.7 24.9 32.9 75.9 ***NOTE*** RS540 is not legal for 2012 RS540 @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 17200 100.0 0.9 0.0 11.2 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 32.6 0.230 0 0.0 36.8 0.0 441.6 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 16.3 0.115 8600 50.0 18.9 103.8 226.4 45.8 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 4.5 0.032 14841 86.3 5.8 49.1 70.2 70.0 RS550 stall torque changed to 70.5 ozin per 2012 FRC specs M5RS55012 (B) @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 19300 100.0 1.4 0.0 16.8 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 70.5 0.498 0 0.0 85.0 0.0 1020.0 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 35.3 0.249 9650 50.0 43.2 251.5 518.4 48.5 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 8.0 0.057 17105 88.6 10.9 101.4 130.9 77.5 M7RS77512 @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 7300 100.0 1.1 0.0 13.2 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 61.1 0.431 0 0.0 30.0 0.0 360.0 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 30.6 0.216 3650 50.0 15.6 82.5 186.6 44.2 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 9.8 0.069 6127 83.9 5.7 44.5 68.9 64.5 M7RS77518 @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 13000 100.0 1.8 0.0 21.6 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 112.8 0.797 0 0.0 86.7 0.0 1040.4 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 56.4 0.398 6500 50.0 44.3 271.2 531.0 51.1 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 14.2 0.100 11363 87.4 12.5 119.4 149.9 79.7 am0912 (CCL 9015) @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 16000 100.0 1.2 0.0 14.4 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 60.6 0.428 0 0.0 63.8 0.0 765.6 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 30.3 0.214 8000 50.0 32.5 179.4 390.0 46.0 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 7.3 0.052 14070 87.9 8.8 76.1 105.0 72.5 Specs for am0914 (PG71) motor are disputed. Update will be posted when available. am0914 (PG71) @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 84 100.0 1.3 0.0 15.6 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 4140.0 29.235 0 0.0 26.8 0.0 321.8 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 2070.0 14.617 42 50.0 14.1 64.3 168.7 38.1 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 739.3 5.221 69 82.1 5.9 37.7 70.3 53.7 DensoL 2621003040 @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 84 100.0 1.8 0.0 21.6 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 1501.1 10.600 0 0.0 21.0 0.0 252.0 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 750.5 5.300 42 50.0 11.4 23.3 136.8 17.0 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 339.5 2.398 65 77.4 6.1 16.3 73.7 22.1 DensoR 2621003030 @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 84 100.0 1.8 0.0 21.6 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 1501.1 10.600 0 0.0 18.6 0.0 223.2 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 750.5 5.300 42 50.0 10.2 23.3 122.4 19.0 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 357.4 2.524 64 76.2 5.8 16.9 69.6 24.3 Denso AE2351000160 @ 12.00 volts: @ free (no load): ozin Nm rpm rpm% amps watts out watts in eff% 0.0 0.000 5300 100.0 1.0 0.0 12.0 0.0 @ stall: ozin Nm rpm rpm% amps watts out watts in eff% 18.4 0.130 0 0.0 7.0 0.0 84.0 0.0 @ max power: ozin Nm rpm rpm% amps watts out watts in eff% 9.2 0.065 2650 50.0 4.0 18.0 48.0 37.6 @ max efficiency: ozin Nm rpm rpm% amps watts out watts in eff% 5.0 0.036 3846 72.6 2.6 14.4 31.8 45.2
01122012 10:00 PM
Ether
I've just been informed (by someone in a position to know) that the "9013" in the KoP Checklist is an error: It should be 9012.
Team Update #2 (20120113) added FP9012 to [R48] and kept FP9013.
The motor calculator supports the FP9012. As soon as specs for FP9013 become available I will add them to the calculator.
01162012 09:37 PM
Ether
The motor calculator has been updated with the latest (1/16/2012) lab data for the am0914 gearmotor.
I decided to incorporate 2 separate sets of motor specs for this gearmotor:
one for brandnew (unused) gearmotor, and... since the lab data indicated a significant difference.
one for used (brokenin) gearmotor
01182012 12:42 PM
Ether
Motor calculator has been updated to MCALC32t and includes:
01192012 10:13 AM
Ether
MCALC32w fixes a problem with the spec options menu for the am0914.
01192012 04:56 PM
Ether
MCALC32aa adds a UserDefined motor to the motor selection menu.
EDIT: MCALC32ab adds exception handling to userdefined motor input
01272012 02:18 PM
bmlarson12WOW!!! How did you do this? I have been looking for a graph of the information so I could get the general values, but this is far better!
01272012 02:28 PM
Ether
WOW!!! How did you do this? I have been looking for a graph of the information so I could get the general values, but this is far better!

01272012 03:37 PM
wiretiesEther == Awesome  any chance you'll part with the source so I can compile a Linux version?
TIA
01272012 06:31 PM
Ether
Ether == Awesome  any chance you'll part with the source so I can compile a Linux version?

01272012 06:41 PM
wireties
It would be good to have a Linux version.
I'll pull out the formulas and post them. Give me a couple of days. 
01302012 10:08 AM
Ether
It would be good to have a Linux version.
I'll pull out the formulas and post them. Give me a couple of days. 
01302012 01:15 PM
wireties
Here ya go.

01302012 02:35 PM
Ether01302012 02:38 PM
wireties
Anyway, unless you have an old copy of Kylix the source wouldn't serve the purpose intended.

02212012 12:28 AM
Ether
There have been a number of occasions recently where I wanted to calculate a motor's applied voltage given rpm and amps. To make this more convenient I added another option to the motor calculator.
I have also changed the display to show waste heat watts instead of input watts, since that seems to be of somewhat more interest. Input watts is easily calculated by adding output watts and waste watts.
01122013 04:56 PM
Ether01262013 12:13 PM
Ether01272014 04:58 PM
Ether
Motor Calculator has just been updated to include all 2014 motors. Sorry for the delay. Better late than never :)
http://www.chiefdelphi.com/media/papers/2432
02032014 12:33 PM
Ether
Motor Calculator has just been updated to include am2161 & am2194 motors (for am0914, 2193, & 0915 gearmotors)
http://www.chiefdelphi.com/media/papers/2432
02032014 07:10 PM
wiretiesThanks again Ether!! You would not believe how much we use this utility.