Moved Y Axis motor mounts to outside

Today I bit the bullet and moved the Y axis stepper motors to the outside of the carriage. This has been annoying me for a while given that the brackets always get in the way and I have to work around them.

Rather than mounting the belt on the top I chose to mount them on the bottom. This enabled me to get the mechanics out of the work area. It also allowed a more compact implementation.

By moving the motors to the outside I gained a few extra centimeters of print area and the X gantry will not bump up against the motor gears.

I have looked at many mods but went with printing motor mounts from thingiverse http://www.thingiverse.com/thing:27860.

I could have used standoffs but chose the printed solution.

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I then cut a small notch in the side of the frame to string the gear pulley through.

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Here are some before and after photos

Before:

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After:

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