Filter drawer for 48mm unmounted filters

I based this model on the TS filter drawer for Canon quick changer (http://www.teleskop-express.de/shop/product_info.php/info/p5748_Filter-Drawer-for-D-36mm-unmountes-filters---for-the-TS-Filter-Quick-Changer.html).

I found that there wasn't any drawer for 48mm unmounted filters, only with cell and those do not work with the low profile quick changer. So i create a new one!

The holes are 2.8mm in diameter, I use a M3 screw to create the thread and with "Nut Job" I design a 3mm long M3 scr