I am working on a 3D model for the current MMT-02 motor mount. I have everything ready except the flange that mounts to whatever surface the motor is being mounted to. I need dimensions for the flange, holes, and hole spacing on the flange. I also need to know how thick these motor mounts are. I am using a 3 mm thickness until I have an actual dimension.
I haven’t got any of these to look at, so I created the parts of the model I have from the dimensions of the GHM-04 motor. As far as I can tell, everything is correct so far.
I am also working on a 3D model for the GHM-04 gear motor. The two projects go together. 
After I get the model for the MMT-02 done, my plan is to just extend the flange and add one or two SES hole patters, probably to match those of the ASB-04 SES holes. My SES compatible motor mount will have two sets of holes to match what it already has, plus the ASB-04 style SES hole pattern.
Feedback welcome!
8-Dale
Here is my preliminary version of a modified MMT-02 that is SES compatible. The dimensions will need to be modified after I know what the true dimensions are on the MMT-02, but at least this will give everyone an idea of where I want to go with this.
I am also not sure of what clearance the motor will need from the bottom of the motor mount, but this can easily be adjusted as I get better dimension data. This modified motor mount is based on dimensions from the GHM-04 and MMT-02 that I either have access too or could estimate. This mount is 2 mm thick at present.
Modified Motor Mount
8-Dale
So are you going to cut a GMH gearhead motor mount and weld that piece on as a base or custome make it entirely? It looks good, I wish Jim would have came out with this a long time ago. It would have made his new gearhead motor SES brackets a lot easier to build now becuase it would have already added motors to the servo family at that time.
I would like to custom make it as a single unit. It would make a better looking part that way. 
I have two, maybe three, other versions of this motor mount in mind also, where the mounting is in different orientations.
This would make it possible to mount motors different ways. All of them would be SES compatible.
8-Dale
Well, I need some good motor mounts soon, for the conversion of WALTER to use motors instead of servos for locomotion. I have also decided to use motors for the wheel systems on Walk 'N Roll. I also have other designs I want to use motors where the mounting may need to be different, and I will design new mounts as needed.
I can certainly design the motor mounts, but am not sure I can afford to have them made. I will have to look into this and see if I can find a reasonable source and what they require for data to make them.
8-Dale
Im sure someone here like Evo could whip up something for you.
Probably.
I have three different SES compatible motor mount designs now, and am working on a fourth one. I don’t know if it would be useful or not, but I am playing with the idea of having the small SES holes go all the way around the larger hole to provide for mounting motors at angles.
8-Dale
I could see that working for some kind of pipe inspecting robot that has wheels on an angle to drive off the circular tube or something…Anyway it leads open room to be able to do this if neccessary for some other bots.
I have six different SES compatible motor mount designs now.
They are different in the orientation of the SES holes in relation to the motor, and some have more SES holes than others to allow mounting in different amounts of space. I am looking into inexpensive but sturdy materials I might have some prototypes made out of, including the usual SES type aluminum. 
I am now in the process of tweaking my designs to make sure they follow a set standard for measurements and other mounting hole dimensions and spacing. I am doing my best to make sure these motor mounts fit in with the rest of the LM SES line, while possibly allowing for a bit more flexibility in mounting motors. 
8-Dale
A good friend of mine and I are looking into what it would take to make my motor mounts, as well as other brackets I would like to make for the SES. My friend has a lot of machining experience working for companies such as Lockheed in R&D. 
8-Dale