build your own fiberglass chopper gun system

at least you know the resin catalyst ratio is consistant from one end to the other. trying to find and teach some one to be 100% consistant every hour of every day is almost impossible ,but hand laid glass and a saturator units is cool.

Manufactures including the one where i am now i have advised them to take the choppers off there guns and just used them as saturater gun. Just because you don't understand something, doesn't mean it's incorrect - it just means you don't have a clue. Directional fabrics are next up on the list, guess why - fiber orientation again, which can be more closely tuned with load paths. Cloth is next up on the list, because fiber orientation (often continuous) can be arranged along load paths, but hey, you'd have to have a clue about this sort of thing, which you clearly don't. This isn't opinion, but simply engineering 101 and frankly easy enough to look up, maybe you should try it some time.Ĭhopper gun laminates are the weakest, because of resin/fiber ratios and the fiber orientation in the laminate. There quite frankly isn't a single laminate engineer that could possible agree with your assessment of chopper laminates being as stiff, strong and light as any of the other techniques employed. Hell, they don't want to make a higher profit margin, preferring to adopt more costly materials and methods instead. If what you say is true, why has every major manufacture abandoned chopper gun layups, in favor of a more costly, in both labor and materials method? Silly business owners I guess, of course assuming you're correct. It's silly to discuss any technical issues with you Tunnels, as you're arguments can't be supported with facts, let alone a practical understanding of the engineering, process or physical attributes of the subjects you seem to take a stand on. Which is why bagging and infusion are also employed, but there's absolutely no debate about where chopper gun laminates, even with folks as skilled as you doing it, live on the list of layup options and the resin/fiber ratio tells all. OOOPS i do not believe what you have just said !! sorryīut this isn't a fair comparison, no more then comparing a bad chopper laminate to an expert hand layup. Simply put and assuming a level playing field of two technicians: one working the gun, the other doing a hand layup - the net result will be the copper gun laminate is heavier, not as stiff, nor as strong as the same thickness hand layup.Ī good chopper applicator can get close to a bad hand layup, Hand layup isn't the bee's knees either, which is why bagging and infusion are also employed, but there's absolutely no debate about where chopper gun laminates, even with folks as skilled as you doing it, live on the list of layup options and the resin/fiber ratio tells all. A good chopper applicator can get close to a bad hand layup, but this isn't a fair comparison, no more then comparing a bad chopper laminate to an expert hand layup. Simply put and assuming a level playing field of two technicians: one working the gun, the other doing a hand layup - the net result will be the copper gun laminate is heavier, not as stiff, nor as strong as the same thickness hand layup. Arguing anything to the contrary is, well frankly foolish, considering how commonly understood and available this information is. Tunnels, you're correct in that a chopper gun application, is only as good as the gun holder, but it's physical properties, even with the best application, are well established, though considerably less stiff and strong for the same weight and thickness, as in a hand layup.

Build your own fiberglass chopper gun system