Super Bolt Update with PICS (you guys are driving me nuts)
All of AO,
Ok you guys are pounding me left and right about this thing so here are the pics. On the left is a bolt that went through about three tournaments, the middle is a brand new one, on the right is the bolt without the Delrin sleeve. As you can see there is a wear problem so you have to replace the sleeve periodically. We are working on this and other interelated stuff so please stand by.
I think cast iron is the answer
I remember fondly the days of shooting the PMI-3 Piranhas and the satisfying thump the hammer made inside the marker. You knew you were firing every time you pulled the trigger. :)
Delrin wear solution ideas
Dunno how feasible it'd be, but how about a thin metal jacket on the outside of the delrin sleeve? It'd serve as a 'sacrificial' wear surface while still having most of the weight advantage of the 'pure' delrin sleeve? Sort of like an aluminum honeycomb panel. Strong but light.
Originally posted by AGD
It can get a lot more worn out before it starts really causing problems. I am just afraid some father will call me complaining his son just bought the thing with his last dollar and now it's falling apart. See what I mean?
Or...instead of a metal sleeve around the delrin, have a few metal rails along the length of the bolt to take the wear and tear? Same advantage of a metal sleeve, but it'd keep even more of the weight savings of the pure delrin sleeve. It'd kinda look like one of those 'Crossfire' barrels. Except with delrin inbetween the rails of course. :)
Though I imagine that that either idea might have some tough manufacturing problems. :(
How much could the sleeve be?
I think, naively perhaps, that we should just buy the upgrade (if not made a standard option in the marker) and buy several replacement sleeves. I don't know a lot about machining delrin, but how expensive could they be? Seems that we could buy batches of 3 or 5 and replace them as needed just like the O-rings, bolt springs and foamies.