Rival Oring Barrel Adapter + Front Centering Ring

thingiverse

Update 11/17/19: New files uploaded, 7-8_3-4_short_insert. Intended for 7/8"x3/4" orings to provide a thicker wall between the oring and the barrel for easier printing. For those who prefer metric measurements, it will fit an oring down to around 19mm ID, 22mm OD being a suitable option for oring size. Additionally, reach out if you need one sized specifically for your desired oring or barrel.\ Update 11/15/19 preview: It's recommended to wait until I update this post before printing the oring portion. I'm transitioning to 7/8"x3/4" orings in an effort to achieve multiple walls on inner piece sections, enhancing print quality on .4mm and up nozzles.\ Update 10/30/19: The design now includes a component to help center your dart barrel within the Knockout barrel's front section, maintaining a straight alignment. Apply a bit of tape around this part for a secure fit into the front. The conical shape accommodates printing tolerances.\ Want an easy method to insert a dart barrel into a Rival blaster? This product is designed to accommodate 16mm OD barrels and utilize #13 orings, measuring 7/8"ODx11/16"IDx3/32". A thinner oring can be used but my experience shows that a thicker one tends to cause the print to split. Simply attach this piece to your barrel for a snug, mostly airtight fit.\ This design maintains the blaster's integrity by being non-invasive and entirely reversible. It works particularly well with the Knockout, which features an operational breech that benefits from minimal interference.\ I plan on creating a front alignment cone piece that fits into the wider section of Rival barrels to further assist in aligning the barrel away from this component.