Filter drawer for 48mm unmounted filters

thingiverse

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 discovered that no drawer existed specifically for 48mm unmounted filters, only cells were available and those wouldn't work with the low profile quick changer. So I designed a new one! The holes are 2.8mm in diameter, I used a M3 screw to create the thread and created a 3mm long M3 screw using "Nut Job" which fits perfectly every time. However, after testing my initial model, I found that if you make the thread without careful consideration, the screw won't fit correctly at all. A possible solution is making the M3 screw around 3.1mm in diameter. M3 x3mm: http://www.thingiverse.com/thing:2041728 EDIT: I minimized the height of the external cover to prevent it from hitting my flattener.