Instead of doing painful work on machining my metal motor mount last year, I decided to use 3D printed parts this year after I read Peter Harrison’s post last year.
I used Autocad 2012 designed motor mount, sensor mount, and wheels, printed at shapeways.com with high precision plastic option. It took me more than 2 weeks to receive it.
Here are the pictures for 3D models designed in autocad
Here are what they looked after printed
Since the Sensor mount was specifically designed for SFH4545 and TEFT4300, I tried to fit both into sensor mount and turned out they both fit very well
I will find a chance to test if the gear and shaft fit my motor mount later this week.