Mk23 knurled 16mm to 14mm adapter

thingiverse

This is a revised version of Mk2Custom's 16mm to 14mm ccw adapter for airsoft MK23. I swapped out the hex pattern with a knurled sleeve instead and tweaked the transition between the two threaded parts.\r\nThe knurling is quite fine, so printing at 0.1mm resolution is a must (it's worth it).\r\nThe print clocked in at just under an hour on my Ender3, and can be mounted straight off the build plate.\r\n\r\nEDIT:\r\nVersion 1.1 has dropped, replacing the original STL file with a new, stronger part.\r\nJust like before, 0.1mm layer height is recommended, but it will thread just fine at 0.2 if you need to print a little faster.\r\n\r\nAdditionally, I used four walls, 50% infill and enabled ironing in Cura, so top surfaces are dead flat and smooth.\r\n\r\nThe new outer ring is 20mm instead of 18, without the knurling (adds about 1.4mm).\r\nThread transition has been reworked slightly.\r\nAlso, the internal diameter in the 14mm section has been knocked down to 8.58, so inner barrel should fit inside with no wobble at all. (it was also the case on the original design, I accidentally changed that).