Servo crane

Well i wanted an arm or crane that i could put on an rc truck and actually lift a few lbs with so i spent a day dreaming this up.
im currently printing it for the first time and do not know if it all works as designed, I'm sure there is something that needs and will be revised.
I'm not sure if the endstops will be needed but i use them for linear actuators i build so i can essentially have a continuous two way servo that knows when to stop, i honestly have to research how to wire in the diodes and switches every time so ur gonna have to do the same, Its complicated but not impossible.
Try and print so no support in the slide channels of actuator and crane main body but you will most likely have to do some sanding especially on the pusher arm, You want it to move effortlessly but not be sloppy loose, I also use a bit of lithium grease.
I used jmt 35kg servo but i cant find them anymore so any 35kg should work.
Most holes are for 3mm to be threaded into but the