Thursday, 14 July 2016

Magnetic encoder gearbox


It's been a while since the last update I have redesigned the gearbox with 2 radial bearings and a thrust bearing. The worm is print in 2 parts this gives a better tooth profile and reduce backlash. The motor driver is now a VNH2SP30 on a custom pcb and still the arduino pro mini. Its now mounted on the gearbox to reduce wiring and make it more modular. After the redesign its not 100% compatible with Inmoov. Communication is now with RS485 each unit is daisy chained from the last again to reduce the wiring clutter. Using cheap motors causes a problem with the PID accuracy mainly due to the higher starting voltage and the resultant jerk on start of movement.


5 comments:

  1. leigh@mail.postmanllc.net

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  2. Hi Peter,

    We briefly spoke on the InMoov Google group about making the InMoov autonomous, as I am researching this topic for my final year peoject. Would love if I could get some guidance from someone of your expertise as my project will largely rely on collaboration. My email is KevonKelly@live.co.uk. would love to have a chat

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  3. Nice and informative blog! Your blog provides information about many new and innovative technologies. Thanks for sharing the blog and providing a information about something new.

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