Point motor advice

[aleopardstail]

Never used python, just C/C++ here, something I found pretty useful was a class object to manage the thing, then a loop function you call with an elapsed time from the last time it was called - makes it reasonably simple to have a constant angular velocity or a constant time period to go between two positions. slow movement is wonderfully quiet too

I have an object to manage the PCA9685 and another for an individual servo, end up with an array to loop through.

likely have a video coming up on the actual software set up I use

I'll be watching that video!

now there is incentive about having to make it

[rreckless]

What do you use as a rod for the point motors?

[aleopardstail]

What do you use as a rod for the point motors?

Servo pushrods I got from Amazon in a bag of about 50, they have the "Z" crank in one end pre-made, cut to length. I have a 3d printed mount (available free from https://www.thingiverse.com/aleopardstail/designs if you have a printer).

can also use 0.8mm piano wire - point is it needs to be both stiff and springy to work without staying bent

[centenary]

You can use piano wire for point motor throw wire. If you've a local modelshop they should have a supply as RC modellers use this for servo throws on model aircraft.

Dont use thick rod that can also be used in RC. This does not have the spring and will wear out the micro servos used to throw points as these generally use plastic gears.