Larry Ortega replied to Jeremy Platt's discussion Winding angles
"Aloha Jeremy,
The closer to a Polar wind you get, the more stiffness you will get. The down side of that is you will also have huge fiber slip at the ends during really low angle winding. I do a Hoop layer as my first ply followed by a ply at 65 deg…"
May 30
Larry Ortega replied to Nicholas Finch's discussion Finishing Tips and tube thickness
"Resin Rich Laminate Cure
Get a plastic squeegy. something like the wide plastic ones for putting BONDO on an auto body repair. As the part rotates use this to gather excess resin and return the excess to your mixing cup. When you hit PAUSE, put this…"
May 30
Larry Ortega replied to Jeremy Platt's discussion Mandrel creation and release
"Wood, Fiberglass, plastics all work. If cost is not an object use teflon. Obviously the part will not adhere and the CTE of Teflon is your friend. Wind the part and let it cure someplace warm, hot is even better. (A garage in Oklahoma summer for ins…"
May 30
Larry Ortega replied to Antonin Herbeck's discussion Pins at the ends of mandrel
"Look at the UNIVERSAL PIN RINGS from Advanced Composites Inc.
Best Wishes,
Larry"
May 22