I appreciate the work you have done to make so many different videos regarding composites. Your presentation is concise with useful orderly information and proper viewing angles. Thank you!
I love how you clearly spell out everything you do and post a spreadsheet of the laminate with all the pertinent data. I wonder what that laminate would have weighed had you perforated the foam. Also how much stiffer had you used 1/4" H80 foam.
Thanks Grant! I kind of looked into the weight estimate in the description but would say probably 10-15% weight reduction by fully bleeding off that excess resin. I put a lot of extra resin in that first skin! The stiffness would probably go up a bit less than 4X with doubled core thickness. Weight wouldn't go up much at all. I may have to try one like that to redeem myself and make something pretty with the spread tow.
@@ExploreComposites The laminate above, perforated with 1/4" foam will be my test for a wing skin material for a very lightweight aircraft. 1/2" for fuselage skin (with stringers and bulkheads for additional support).
I think you're right - though I would have had to start from one edge and work across. Without any holes through, the air would only be able to escape if worked all the way across the surface to an edge.
I appreciate the work you have done to make so many different videos regarding composites. Your presentation is concise with useful orderly information and proper viewing angles. Thank you!
excellent teaching and demonstrating
Thanks! I'm working on the teaching part - and learning how to make more watchable videos... Bit of a learning curve to this video thing!
I love how you clearly spell out everything you do and post a spreadsheet of the laminate with all the pertinent data. I wonder what that laminate would have weighed had you perforated the foam. Also how much stiffer had you used 1/4" H80 foam.
Thanks Grant! I kind of looked into the weight estimate in the description but would say probably 10-15% weight reduction by fully bleeding off that excess resin. I put a lot of extra resin in that first skin!
The stiffness would probably go up a bit less than 4X with doubled core thickness. Weight wouldn't go up much at all. I may have to try one like that to redeem myself and make something pretty with the spread tow.
@@ExploreComposites The laminate above, perforated with 1/4" foam will be my test for a wing skin material for a very lightweight aircraft. 1/2" for fuselage skin (with stringers and bulkheads for additional support).
Good work bro
The composites didn't turn out so nice - but I'm glad you thought the video was useful.
You didn't roll the core to get air out........part of your problem..........Z
I think you're right - though I would have had to start from one edge and work across. Without any holes through, the air would only be able to escape if worked all the way across the surface to an edge.