Tunneled Timing Belt

I'm curious if anyone has previously used the interior of the makerslide as a place to put one side of the timing belt loop:

I'd been racking my brains trying to figure out how to modify bart's DSLR camera slider design to side-mount the motor and came up with this. I haven't seen it before, but I'm sure I'm not the first to design it (I'm never first, the internet has taught me so...
Duane Johnson
http://makerslider.com/

I'd been racking my brains trying to figure out how to modify bart's DSLR camera slider design to side-mount the motor and came up with this. I haven't seen it before, but I'm sure I'm not the first to design it (I'm never first, the internet has taught me so...

Duane Johnson
http://makerslider.com/