Hi, I’m interested in buying the PT785-S PanTilt System or a system that’s similar. I’m developing a fixture to test antennas, which needs to rotate around 2 axes just like these Pan/Tilt systems.
My EE colleague has already spent a lot of time designing the controls, so I need to use the motors he’s already specified. Here’s a link to that motor:
phidgets.com/products.php?product_id=3327
I’m hoping I can just swap out the motors in the tilt/pan system with the motors we already have, which would be ideal. The shaft of the motor from phidget is 5/16". They even provide a SolidWorks model of the motor on their website if that’s helpful.
Do you think it’s possible to swap out the motors with minimal changes to the mechanical design? If not, is there another system you could recommend for me to look into?
Appreciate the help,
Lois Gallant
Unfortunately not at all. The motors are not at all the same, so the brackets would not be of any use.
There’s really no way we can even suggest hacking it - the motors are simply too different.
Note too that the brackets for the pan/tilt are really meant for one motor - a motor with even one dimension which is not the same likely won’t work.
Unfortunately we do not offer any stepper based pan/tilt systems.
Is the frame riveted? Is that why you’re saying it won’t work? Can I replace the brackets to fit the motor I need to use?
The frame is made specifically for the 785HB servo:
robotshop.com/en/hitec-hs785 … motor.html
You can see that this looks absolutely nothing like a stepper motor - the mounting is completely different, as is the shaft etc.
The brackets are designed for this servo and ones which use stepper motors are not available / designed.
An analogy would be trying to fit a car engine inside a two wheel scooter; they perform the same function but are not at all compatible with each other.
