Car CD stereo phone bracket

Hi All!
This is my car phone bracket that slots into the CD player.
It's fully adjustable and has a hole in the bottom for a micro usb charger.

It's non intrusive and keeps your Dashboard and windscreen free of clutter and obstruction.

It should be compatible with most smartphones as long as the phone is no wider than 85mm so some phablets may not fit, also the brackets are 13mm deep so should be able to hold most phones in bumper cases etc.

Here is the BOM
2 x M3x8mm hex socket screws and 2 x M3 washers (to secure side brackets)
2 x M3x6mm hex socket screws(to guide side brackets)
2 x M3 nuts (not Nylock) to secure side brackets

You need to print 2 of the M3 caps and glue them onto the M3 x 8mm screws using superglue.
Then assemble as shown in the picture.

I printed pt1 (the bit that goes into the CD slot) with 100% infill to add rigidity. other than that 20% should be fine for the rest.

Enjoy!

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UPDATE 16/12/2014
I modified part 1 so it si