Is this motor legal?

[JustbeingJFK]

My team has bought this motor from FIRST but we aren't sure if it's legal

[MrForbes]

It looks just like an Automotive Van Door motor. Do the rules say you can use an Automotive Van Door motor?

I didn't know that FIRST sells motors, do you have the link for where you bought it?

[JustbeingJFK]

We don't have the link but we got from FIRST from excess parts

[Richard Wallace]

Mr. Forbes is right, this is an automotive van door motor.

If it does not appear in Table 4-1 under rule R18 in the 2015 FRC Manual, then it cannot be used on a robot for Recycle Rush.

I don't see it listed there.

[PayneTrain]

Originally Posted by Richard Wallace

Mr. Forbes is right, this is an automotive van door motor.

If it does not appear in Table 4-1 under rule R18 in the 2015 FRC Manual, then it cannot be used on a robot for Recycle Rush.

I don't see it listed there.

Automotive Door Motor is listed, or am I missing something?

[Richard Wallace]

Originally Posted by PayneTrain

Automotive Door Motor is listed, or am I missing something?

No you didn't miss anything -- I did!

That van door motor (Bosch type CHP, I think) was a KoP item several years ago, and then was not allowed for several years. Glad to see it is back now.

Searching old competition info might find the spec data -- also I think maybe Ether or JVN will have it in calculator menus. I recall they went about 50 RPM and developed a little over 25 N-m stall torque, so about 35 Watt peak output. But please check that against the sources mentioned above.

[MrForbes]

from the interwebs, through a slightly convoluted path that took over a minute to find... Bosch Van Door from 2006 is my guess.

[kevin.li.rit]

The van door shown is used as a windshield wiper motor. Would that mean it is covered under windshield wiper motor?

[Richard Wallace]

Originally Posted by MrForbes

from the interwebs, through a slightly convoluted path that took over a minute to find... Bosch Van Door from 2006 is my guess.

That's good news, Jim. The motor is better than I recalled -- should make a good ~60 lbf elevator driver for teams that can get a ~3" diameter sprocket or pulley onto its shaft.

[MrForbes]

Originally Posted by JustbeingJFK

We don't have the link but we got from FIRST from excess parts

I didn't know about that as a source for parts, thanks for the info!

[devg29]

Checked the game manual; automotive door motor is listed, part numbers are various, and quantity is unlimited. While we're on the topic does anyone know this motor's weight? haven't been able to find exact spects

[PayneTrain]

Originally Posted by devg29

Checked the game manual; automotive door motor is listed, part numbers are various, and quantity is unlimited. While we're on the topic does anyone know this motor's weight? haven't been able to find exact spects

If you have the motor on hand, just use a scale. If part numbers are various, that means there are various datasheets on every kind of door motor.

[JustbeingJFK]

Originally Posted by Richard Wallace

That's good news, Jim. The motor is better than I recalled -- should make a good ~60 lbf elevator driver for teams that can get a ~3" diameter sprocket or pulley onto its shaft.

That's exactly what we plan on using it for. We have been trying to make a spool to put on the shaft to make a pulley but it's oddly shaped and metric.

[Richard Wallace]

Originally Posted by JustbeingJFK

That's exactly what we plan on using it for. We have been trying to make a spool to put on the shaft to make a pulley but it's oddly shaped and metric.

Maybe enlarge the center of a piece of ThunderHex to make a tight slip fit for the van door motor shaft, then cross-drill both pieces and press in a 5/32" pin? This would leave you with a 1/2" hex on which to mount many possible COTS drive parts (sprockets, pulleys, flanges, etc.)

[Mark Sheridan]

Originally Posted by JustbeingJFK

That's exactly what we plan on using it for. We have been trying to make a spool to put on the shaft to make a pulley but it's oddly shaped and metric.

Just an FYI, the worm gear is pretty efficient (as far a worm gears go), so its actually easy to back drive it.