Here is an idea. Those SES servo bracket’s main point, I think, is to provide a pivot point at the rear of a servo so as to take most of the eccentric load off the servo. But the bracket adds bulk, cost and weight. I had an idea to make a replacement rear cover out of aluminum. It would be the same size and shape as the original plastic part but maybe thicker. Then I drill and tap a hole in the cover and mount a threaded stud (or a screw with the head inside the servo case, counter sunk into the new cover. I can place a ball bearing on this stud.
A second version of a rear cover plate would extend to provide a mounting flange with the same shape an size at the standard servo top plate.
These could be plenty cheap if made in China using CNC.
Then I found the “Open Servo” project. Combine the above with even Version 2 of Open Servo and you can compete with Dynamixel at the low end.
Thanks for the links. I’m looking for ideas now for a stronger and lighter design that uses the fewest number of parts.
Both of those ideas work. But look at the bracket with the foam tape. We can loose the weight of the bracket if we remove the cover plate, drill it and install the screw from the inside of the servo. A counter sinked screw would not take up any space inside the case. The only think is the plate might not be thick enough. I could solvent weld a doubler plate
The hot glue idea was quick but “JB Weld” works better as it’s a lot stronger. The guy with the popsicle sticks was not far off, wood can be very strong. But don’t use hot glue and you have to engineer a truss type structure
Something like what Orion robotics did with there servos? orionrobotics.com/Digital-Se … p_302.html
They have been out of stock since before Christmas so not sure what is happening
If the servo bonding surface is clean, the hot glue is plenty strong if used correctly. Using wire I suspended 10+ lb. of weight from the screw/nut glued to the servo bottom with no issues. Hot glue can also usually be removed from plastic surfaces like the servo bottom if needed. Below is a similar setup just using a large headed nail.
