One of our mentors brought in two very similiar window motors that he found (they appear to be mirror images of the kit motors). Here is some data about them.
Part number on the box is 742-155 (Right?) and 742-155 (Left?)
That part number does not appear to match the one from the kit of parts. The one from the KoP is: 262100-3040 (Left) 262100-3030(Right). Per rule <R45> “Motors specifically permitted on 2011 FRC ROBOTS include:…identical one-to-one SPARE PARTS for motors, actuators, and servos provided in the 2011 KOP that may have failed or become damaged.” Since the part numbers are not the same, they are probably not allowed.
Understood, these can’t be used on the robot or as spares (they are mirror images so they wouldn’t work as replacements). Then again, we sure would never turn away donations like this.
What I would really like to find out is the part number for the electrical connectors. We have two of them, but nobody seems to know where they came from. These are great little motors with the exception of the unique connectors. I would sure like to buy at least two more.
Does anybody have a part number for the electrical connectors? I was hoping that maybe having the motor numbers would help with the connectors. But I came up empty.
If these motors have the same kind of connector as the KoP window motors then use a Delphi 280 Connector, Delphi model number 12129487. This can be found on Mouser Electronics with this part number: 829-12129487. Delphi lists this connector as being used typically in Window Lift Motors. My team used this connector last year and they fit perfectly in the motor, and wouldn’t allow for accidental disconnection.
The terminals for the connector vary depending upon the wire size you use, the complete listing of the terminals can be found here under the “Related Parts” tab. Then take the Delphi part number and search Mouser for it to find the terminals on there.
If they are not the same connector type then please attach a picture of the connector so we can see it.
A word of caution when using the Delphi connectors: you probably want to order more housings than you think you might otherwise need, since they do not appear to be very tolerant of pin extraction.
In other words, things work as expected the first time a set of contacts is installed into the housing; the contacts are retained securely. If you later try to remove those contacts - at least in our experience - it will damage the plastic housing to the point that any new contacts that are installed won’t be retained nearly as securely as the original set. We’re clearly damaging the housing when we extract the contacts. We don’t have access to any kind of “manufacturer certified” extraction tool, so we use a jeweler’s screwdriver to push in the retaining tang on the contact - it’s just that something in the housing appears to get damaged along the way and it’s not obvious what that might be (need to get it under a microscope to tell for sure).
Our primary countermeasure is to always use a “fresh” housing on the final configuration of the robot. We also apply hot glue to the housing to help retain the contacts if we’re forced to re-use an old housing.
Anyhow - hopefully that info is useful to someone.