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08-17-2017, 11:10 PM #315000 RPM
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This reads like a uni body vs full steal frame conversation from the 1970's. From a high level can you detail the rapid prototyping to manufacturing process? How is the mold and structure fused flashed and what time frame does this of process take from CAD -> Water? Thanks.
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08-17-2017, 11:45 PM #32
Last edited by tunnels; 08-18-2017 at 12:55 AM.
Messing round with boats is fun !! the learning never stops ,even after more than 30 years there's always something new happening somewhere ! BUT somethings never change and some problems never go away and just keep reoccurring !!so moved into Composite Forensics , Now that something completely new !!
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08-18-2017, 02:03 AM #33Screaming And Flying!
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unibody is hull without stingers, monocoque
Hull that needs stringers is a chassis to hold it together
clear to me?
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AZMIDLYF liked this post
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08-18-2017, 04:02 AM #34
well those are some very un nautical terms but I get the idea sort of! as for the rest of that post well id hate to ask directions to the nearest toilets if I need to go in a hurry !!
Is that classed as modern day language taught in schools ?? no wonder the worlds I such a mess !Last edited by tunnels; 08-18-2017 at 04:08 AM.
Messing round with boats is fun !! the learning never stops ,even after more than 30 years there's always something new happening somewhere ! BUT somethings never change and some problems never go away and just keep reoccurring !!so moved into Composite Forensics , Now that something completely new !!
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08-18-2017, 07:54 PM #355000 RPM
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AZMIDLYF liked this post
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08-18-2017, 08:14 PM #365000 RPM
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08-18-2017, 08:24 PM #37
Kelvin just ignore Tunnels. He is an arrogant know it all. Obviously over in France you would have a slightly different way of explaining something however all us American friends understood exactly what you meant by uni body and frame rails. Now lets just wait for his petulant rebuttal.
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08-18-2017, 09:24 PM #38Messing round with boats is fun !! the learning never stops ,even after more than 30 years there's always something new happening somewhere ! BUT somethings never change and some problems never go away and just keep reoccurring !!so moved into Composite Forensics , Now that something completely new !!
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08-18-2017, 09:30 PM #39
[QUOTE=Noah Burns;2981017]interesting that you reprimand the man about language when your posts are harder to read than chinese algebra...[/QUOTE
Seriously now stringers is what this is about or it started off to be so if its nothing to do with them im outta hereLast edited by tunnels; 08-19-2017 at 01:50 AM.
Messing round with boats is fun !! the learning never stops ,even after more than 30 years there's always something new happening somewhere ! BUT somethings never change and some problems never go away and just keep reoccurring !!so moved into Composite Forensics , Now that something completely new !!
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08-19-2017, 05:25 AM #40
Yeah Tunnels you just cant help yourself. You try to look interested but first chance you get to ridicule someone your on it. Guess thats your human nature. You are pathetic.
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08-19-2017, 07:19 AM #41
Stringers ! What is the most common glass used to glass over or attach them to the hull ??
Most of what iv seen in the past guys have used woven glass and its possibly one of the worst types of glass to use in that situation !, only 50% of the glass strands are really doing anything towards holding the stringer in place ! 0/90 bia axle is the same scenario !!
The orientation of the glass fibres is the key to getting the best from the glass used always !!
Double bias 45/45 is a whole different story 100% of the fibres are holding the stringer on place !
Something else when fitting and glassing stringers is having a decent sized cove along the bottom edge to wrap the glass around a radius instead of being forced into a dead right angled corner !! even at the best of times glass does not like corners and it reduces the strength of the glass quite significantly, a radiused cove increases that strength and its far less likely to break if there is any great loads placed on the stringers !Last edited by tunnels; 08-19-2017 at 07:22 AM.
Messing round with boats is fun !! the learning never stops ,even after more than 30 years there's always something new happening somewhere ! BUT somethings never change and some problems never go away and just keep reoccurring !!so moved into Composite Forensics , Now that something completely new !!
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FMP, One Oldman liked this post
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08-19-2017, 08:18 AM #42Screaming And Flying!
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I don't think you've mentioned that before
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08-19-2017, 09:09 AM #43
Quite possible !! its pretty important to be able to get all the glass in the different parts of a stringer all working together !!!
The same principles of glass orientation apply to making grids as well , The vertical sides get placed in compression so the glass needed has to be able cope with compression as well as buckling in extreme situations if huge loads such as hitting a solid object !!
Then we have a completely different situation needed for the top of the stringer and extreme stretch is applied as it wants to bend upwards so a different orientation of the glass fibres is needed to cope with extreme stretch without breaking .
A stringer in effect becomes an" I " beam so has to be built appropriately ! so when choosing glass to make a stringer there's many things to consider and just one kind of glass is never appropriate !!Last edited by tunnels; 08-19-2017 at 09:15 AM.
Messing round with boats is fun !! the learning never stops ,even after more than 30 years there's always something new happening somewhere ! BUT somethings never change and some problems never go away and just keep reoccurring !!so moved into Composite Forensics , Now that something completely new !!
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08-19-2017, 05:46 PM #445000 RPM
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08-19-2017, 05:54 PM #45
ok have very quickly skimmed across the glass and glassing of the stringers but there's the mounting pad of a stringer that's equally important for people doing the ply in edge thing !!
A couple of things to take into consideration !, Did you build a strengthening pad for the stringer to sit on ??? Are you going to cove the corner full length end to end both side ??
Both those things are important , More so if the is no core it really needs a pad and even with a balsa core specially ! foam distributes the load better over a wider area , where as Balsa is much more localised !!
Vertical high narrow ply stringers can simply break or worse still layover on there side when places under enormous loads such as hitting something solid !!!.
Foam stringers would be much wider and thicker and would heave a bigger foot print so would distribute loads over a much much wider area !Messing round with boats is fun !! the learning never stops ,even after more than 30 years there's always something new happening somewhere ! BUT somethings never change and some problems never go away and just keep reoccurring !!so moved into Composite Forensics , Now that something completely new !!
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