Official 2012 Motors Models and Specs Thread

[PAR_WIG1350]

Originally Posted by Ether

The PG71 and the RS775 are not even in the same league. The 775 is 271 watts max, and the PG71 is 21 watts max.

The PG71 IS an RS-775. It is significantly different from the one from Banebots, but my comparison was size (as in ability to be stalled momentarily without overheating) related.

[Richard Wallace]

Originally Posted by Ether

[i]On an earlier thread, Richard indicated he would perform dyno tests on the kit motors and report the results this week. When that data is available, I will incorporate it into the motor calculator.

Today I expect to receive several PG71 units for testing at my lab. (They were shipped on Monday.) We are working on the test set-up now. It may be tomorrow afternoon before we complete all tests, review the results, and are ready to post.

[MrForbes]

Originally Posted by sanddrag

My question is, can we simply buy and legally use any motor from a car rather than obtaining it through this route? If not,I think it's dumb that a piece of paper from a junkyard is the difference between a motor being legal and not.

It makes sense to me....we don't want people using the power window pump motor out of a 1950 lincoln, for example.

[Trent B]

Originally Posted by Retired Starman

Driver side window motors are often built heavy-duty since the driver's window gets more use than the passenger window. They are not the same motors.

That is what Al told me a year ago, it is a cost/benefit scenario, so they build the left versions to slightly higher quality.

[Ether]

See attached. FIRST motor spec table and footnotes.

[Ether]

Originally Posted by Ether

See attached. FIRST motor spec table and footnotes.

Team Update #2 (2012-01-13) has added FP-9012 to [R48] and kept FP-9013.

[DonRotolo]

Originally Posted by squirrel

It makes sense to me....we don't want people using the power window pump motor out of a 1950 lincoln, for example

Yes, it would be a shame to damage a car like that

[AdamE]

Does anybody know the specs for the M7-RS775-18 banebot motor? The specs that FIRST gives are significantly different than the specs from BaneBots.

http://banebots.com/pc/MOTOR-BRUSH/M7-RS775-18

http://www.usfirst.org/sites/default...torInfo2.2.pdf

[Ether]

Originally Posted by AdamE

Does anybody know the specs for the M7-RS775-18 banebot motor? The specs that FIRST gives are significantly different than the specs from BaneBots.

The 12 volt specs for both the 775-18 and the 775-12 are in the motor calculator located here.

The link you posted for the Banebots specs was for the 775-18 at 18 volts.

Here's the Banebots spec for the 775-18 at 12 volts:

http://banebots.com/docs/M7-RS775-18-AT12V.pdf

The FIRST specs are for the 775-18 at 12 volts

[Chris Fultz]

Here is the FIRST file converted to an excel spreadsheet.

I did not make any changes to the data from the FIRST site.

[Andy Baker]

All,

I have updated the web page for the PG71 gearmotor (am-0914). It now has the actual test results performed by Richard Wallace's staff at Whirlpool in Benton Harbor. Many thanks to go Richard and his colleagues for this testing and service to the FIRST community.

Copying from this page, here are the Performance Specs: (updated Monday, Jan. 16th):

• Gearbox Reduction: 71:1
• Voltage: 12 volt DC
• No Load Free Speed: 75 rpm
• No Load Current: 0.6 amps
• Tested Gearbox Output Power: 44 Watts*
• Stall Torque: 16.6 ft-lbf*
• Stall Current: 22 amps*

Sincerely,
Andy Baker

[jason701802]

Originally Posted by Andy Baker

All,

I have updated the web page for the PG71 gearmotor (am-0914). It now has the actual test results performed by Richard Wallace's staff at Whirlpool in Benton Harbor. Many thanks to go Richard and his colleagues for this testing and service to the FIRST community.

Copying from this page, here are the Performance Specs: (updated Monday, Jan. 16th):

• Gearbox Reduction: 71:1
• Voltage: 12 volt DC
• No Load Free Speed: 75 rpm
• No Load Current: 0.6 amps
• Tested Gearbox Output Power: 44 Watts*
• Stall Torque: 16.6 ft-lbf*
• Stall Current: 22 amps*

Sincerely,
Andy Baker

Can we get some specs on the PG71 gearbox, i.e. efficiency and max torque?

[Ether]

Originally Posted by jason701802

Can we get some specs on the PG71 gearbox, i.e. efficiency and max torque?

I believe the specs you are looking at are for the gearmotor, i.e., at the gear output shaft.

Look at the pictures in the report.

[Ether]

The motor calculator has been updated with the new specs for the am-0914.

Still looking for specs for the FP-9013.

[jason701802]

I am asking about specs for the gearbox alone. Supposing it is attached to a more powerful motor, how much torque can the gearbox take before it breaks and how efficient is it?