Compact servo auto level with optical sensor by Alexsss

Last crawled date: 3 years ago

This variant of an auto level I came up with, having looked through many other similar variants. It is quite compact in size. Dimensions 43.4 20 43.5 (h) mm. The fact is that none of the options I saw did not work properly on my printer and did not rest against the walls of the case or cling to the carriages.
In the process, I corrected the design several times and here is the latest version
The body is divided into 2 parts for convenience of printing, which will need to be glued together. For better fixation, I used 1.75 pieces of rod.
I used Emax ES09MA, an optical endstop, a spring (ideally 3.5 mm in diameter, 17 mm in length) and a rod 2.5 mm in diameter, 31 mm in length (cut off from the knitting needle)
Printed from ABS with 100% filling.
After printing up to gluing the parts of the case, you should carefully adjust the surfaces of Servo_pin and the case. He must move very freely without effort.
All holes in the model are made slightly smaller and need to be reamed. The hole for the measuring rod in the housing is 2 mm and it needs to be reamed up to 2.5 mm
For fixing the optical endstop, I cut the thread M3, but if there is no such tap, you can simply put the nut.
Before installing the servo, you need to properly orient Servo_arm.
You can first set the M280 P0 S0 command to zero degrees, and then put Servo_arm on. Then, with the commands M280 P0 S15 (down) and M280 P0 S82 (raised up), check the range of motion.